# London Mempool > A free, verifiable map of London's best tech companies. 759 companies, mostly AI and fintech, plus quantum, crypto, defence, deeptech, health and climate. Every record is matched to Companies House where possible, and every claim links to a source. - Updated: 2026-10-09 - Sectors (primary): AI 177, Fintech 195, Quantum 8, Crypto 33, Defence 18, Deeptech 28, Health 87, Climate 74, Other 139. 82 companies also have a secondary sector. - Tiers: Well known 136, Fastest growing 215, Up and coming 408 - License: Free to use, including commercial use, with attribution to London Mempool (https://londonmempool.co.uk). - Attribution: "Data from London Mempool (londonmempool.co.uk)" ## Who gets in A tech company gets in if it is operating today, has a real office or a major team in London, clears one of the three stage bars below, and every fact about it can be backed by a public source. - Well known (`well_known`): a household name in tech, or valued at $1B or more, or 500+ staff. - Fastest growing (`fast_growing`): raised $20M or more in equity in the last 24 months, or grew 2x (revenue or headcount) in 2 years. - Up and coming (`up_and_coming`): early stage, with real traction (customers, revenue or a product in use) or backing from top investors. A company sits in the highest stage it qualifies for. ## How the data is verified Each company is checked twice. The second check tries to prove the first one wrong. The legal entity is confirmed by its UK Companies House number (`ch_number`). The London address, funding and growth claims each carry a source URL (`address_source`, `funding_source`, `growth_source`). Facts that cannot be sourced are left out. Office pins come from the postcode via official ONS data (postcodes.io). ## Funding rounds - `last_round`: the most recent funding round on record, as reported (e.g. "Series A, $30M, Jun 2026"), backed by `funding_source`. - Read from that text only, never guessed: `last_round_month` (YYYY-MM, null without a month and year), `last_round_stage` (Pre-seed, Seed, Series A, Series B, Series C, Series D, Series E, Series F, Series G, Series H, Growth, IPO, Grant, Debt, Other; null when empty or not a raise, e.g. an acquisition), `last_round_kind` (equity, debt, mixed or grant; null when the instrument is unclear, e.g. a convertible note or bridge) and `last_round_amount` (`{value, currency}` only when exactly one exact figure is written; a currency conversion, a floor like $80M+ or "about" gives null). - Filter `raised_since=YYYY-MM`: last round in or after that month and equity or mixed. It reads the latest round on record only, so it is not a full deal history. - Rounds in the last 12 months, by month: https://londonmempool.co.uk/rounds ## Sectors - `sector`: the primary sector. Map pins, stats and sector counts use it only, so counts add up to the total. - `sector_secondary`: a second sector the company clearly also belongs to (e.g. Health for an AI drug discovery lab, Fintech for a regulated crypto exchange), or null. Never equal to `sector`, never Other. Hand-assigned from the company's own description; most companies have none. - The `sector` filter (REST and MCP) matches either field. Add `primary_only=true` to match the primary sector only. ## Hiring and visas - `open_roles_london`: open London roles counted from the company's public job board (Ashby, Greenhouse, Lever, Workable, Teamtailor, Personio), with `careers_url` and `roles_checked_at`. null means no public board was found, not that the company is not hiring. - `work_model`: `onsite`, `hybrid` or `remote` when 80% or more of the company's London job posts with an explicit workplace type share it, `mixed` otherwise, with `work_model_roles` (how many typed posts it is based on; source is `careers_url`). Read only from the job board's own workplace field or a location that literally says Hybrid, Remote or On-site, never from description text. null under 2 typed posts. It reflects current job posts only, not company policy. - `visa_sponsor`: true when the company is on the UK Home Office register of licensed Worker sponsors (exact legal name, or trading name for a London sponsor), with `visa_source` and `visa_register_name`. false means no exact match was found, not that the company never sponsors. ## Companies House - `incorporated_on`: incorporation date of the legal entity (YYYY-MM-DD), read from the public Companies House register for `ch_number`. null when unknown. - `ch_employees`: `{count, period_end, scope, source}`, the average number of employees during the accounting period ending `period_end`, as tagged in the latest annual accounts filed on Companies House (iXBRL filings only; `source` is the accounts document). `scope` is `company` for the registered company alone, `group` for a consolidated group figure, used only when the accounts give none for the company. It is a past average, so a floor for fast growers, and a UK subsidiary of a larger group counts only its own staff. null when no figure could be read. Separate from `employees` (the reported headcount bucket). Filter: `min_staff`. - `sic_codes`: SIC 2007 codes listed on Companies House as the nature of business. Empty when unknown. ## London presence - `presence`: `hq` (main or global HQ in London), `office` (a London office, HQ elsewhere) or `people` (London staff, no office), with `presence_source`. null means not yet checked. ## Nearest station - `nearest_station`: the closest TfL rail station (Underground, Elizabeth line, DLR or Overground) to the office postcode, from TfL open data, with `station_distance_m` (straight-line metres, walking is longer). Companies grouped by station: https://londonmempool.co.uk/tube ## Context places 55 London landmarks to read the map against: VCs 31, Big tech 7, Universities 7, Accelerators 2, Coworking 8. Each has `id`, `name`, `type` (vc, bigtech, university, accelerator, coworking), `address`, `postcode`, `borough`, `lat`/`lng`, `source_url` (a page that shows the address), optional `ch_number` and `verified_on`. They are not companies in the dataset and are not ranked. All of them: `GET https://londonmempool.co.uk/places.json`, or the MCP tool `list_places` with an optional `type`. ## Investors - `investors`: institutional investors named as backing the company on a page we fetched, each `{name, slug, lead, source}`. `lead` = the source says it led a round. Angels, grants and lenders are left out. It is a floor, not a full cap table: an empty array means none were found. - `github_org`: GitHub organisation login linked from the company's own home page and confirmed on the public GitHub API, with `github_source` (the company page that links it). Profile: https://github.com/{github_org}. null means no link was found on the home page, not that the company publishes no open source. - `accelerators`: accelerator programmes the company went through, each `{program, batch, source}`, from the programme's own public list matched by the company's website domain: Y Combinator (batch like W24, S21, F24 = Fall, X25 = Spring; source is the company's ycombinator.com/companies page), Antler, Founders Factory and Conception X (cohort like CX24 when shown, else null). Programmes without a public list of company websites (Entrepreneur First, Techstars) are not covered, so an empty array means none of these lists names the company. - `cohorts`: published recognition lists the company appears on, newest first, each `{list, year, rank, source}`: Sifted 100 UK & Ireland, Tech Nation Future Fifty, Tech Nation Upscale, Deloitte UK Technology Fast 50, LinkedIn Top Startups UK, Forbes AI 50. `rank` is the position on a ranked list, null on an unranked one; `source` is the publisher's own list (page, PDF or Forbes' list API). Matched by website or LinkedIn page, or by exact name plus a location on the list; uncertain matches are left out, so an empty array means none of the editions we read names the company. - `ecosystems`: crypto companies only. The blockchains the product is built on or primarily supports, each `{name, source}`, where `source` is the company's own site, docs, GitHub or announcement naming the chain. Names come from a fixed list (Ethereum, Bitcoin, Solana, XRP Ledger, Tezos, Starknet and others). Multi-asset exchanges, custodians, brokers and payment rails stay empty, as do companies whose own pages name no chain, so an empty array is not a claim that a company uses no chain. - Leaderboard of investors by companies on the map: https://londonmempool.co.uk/investors, one page per investor with 2 or more at https://londonmempool.co.uk/investors/{slug}. As JSON: `GET https://londonmempool.co.uk/investors.json`, or the MCP tool `list_investors`. ## How to query No key needed. CORS is open. All responses are JSON. - Search: `GET https://londonmempool.co.uk/api/v1/companies` with any of: `sector` (AI, Fintech, Quantum, Crypto, Defence, Deeptech, Health, Climate, Other; comma-separated for several; matches primary or secondary sector), `primary_only` (true = sector filter checks the primary sector only), `tier` (well_known, fast_growing, up_and_coming), `borough`, `area` (tech neighbourhood slug, e.g. kings-cross; list in meta), `q` (text search over name, subsector and description), `min_funding_usd`, `min_staff` (at least this many average employees in the latest Companies House accounts), `founded_after` (strictly after that year), `raised_since` (YYYY-MM; last round in or after that month and equity or mixed), `hiring` (true = open London roles), `visa_sponsor` (true = licensed visa sponsor), `open_source` (true = GitHub organisation linked from the company's site), `presence` (hq, office, people; comma-separated for several), `work_model` (onsite, hybrid, remote; from current London job posts; comma-separated for several), `investor` (investor slug, e.g. index-ventures; comma-separated for several), `accelerator` (y-combinator, antler, founders-factory, conception-x; comma-separated for several), `cohort` (sifted-100-uk-ireland, tech-nation-future-fifty, tech-nation-upscale, deloitte-uk-fast-50, linkedin-top-startups-uk, forbes-ai-50; any edition year; comma-separated for several), `ecosystem` (blockchain slug: ethereum, bitcoin, solana, polygon, base, arbitrum, optimism, avalanche, cosmos, polkadot, stellar, xrp-ledger, tezos, cardano, ton, sui, aptos, near, bnb-chain, starknet, zksync, plasma; comma-separated for several), `sort` (name, funding, founded), `order` (asc, desc), `limit` (default 20, max 500), `offset`. - Example: `GET https://londonmempool.co.uk/api/v1/companies?sector=AI&tier=fast_growing&sort=funding&limit=10` - One company: `GET https://londonmempool.co.uk/api/v1/companies/{id}` - Counts and field descriptions: `GET https://londonmempool.co.uk/api/v1/meta` - What changed: `GET https://londonmempool.co.uk/changes.json`, or the MCP tool `list_changes` with an optional `since` date (YYYY-MM-DD) ## Endpoints - [REST search](https://londonmempool.co.uk/api/v1/companies): filter, sort and page companies - [Dataset metadata](https://londonmempool.co.uk/api/v1/meta): counts by sector, tier, borough and area, plus every field explained - [OpenAPI 3.1 spec](https://londonmempool.co.uk/openapi.json): machine-readable description of the REST API - [Full dataset (JSON)](https://londonmempool.co.uk/companies.json): every company in one file - [Full dataset (CSV)](https://londonmempool.co.uk/london-mempool.csv): the same data as a spreadsheet - [Context places (JSON)](https://londonmempool.co.uk/places.json): VCs, big tech, universities, accelerators and coworking spaces, with sources. Not ranked - [Investors (JSON)](https://londonmempool.co.uk/investors.json): every investor named in a source, with company counts, leads and company ids - [Changelog (JSON)](https://londonmempool.co.uk/changes.json): every company added, removed or updated, one entry per day, newest first - [Changelog (RSS)](https://londonmempool.co.uk/feed.xml): the same log as a feed - [MCP server](https://londonmempool.co.uk/mcp): Streamable HTTP, tools search_companies, get_company, list_sectors, list_changes, list_places, list_investors, get_dataset_info. Add to Claude Code with `claude mcp add --transport http london-mempool https://londonmempool.co.uk/mcp` - [Developer docs](https://londonmempool.co.uk/developers): examples for curl and MCP clients - [How we verify](https://londonmempool.co.uk/methodology): selection and verification method - [Investor leaderboard](https://londonmempool.co.uk/investors): investors ranked by companies on the map - [Recent rounds](https://londonmempool.co.uk/rounds): the latest round on record for each company, last 12 months, grouped by month - [Tube map](https://londonmempool.co.uk/tube): companies grouped by their nearest station, Zone 1 and 2 - [Tech neighbourhoods](https://londonmempool.co.uk/areas): companies by area (King's Cross, Shoreditch & Old Street, Canary Wharf and more), one page per area at https://londonmempool.co.uk/area/{slug} - [Notes](https://londonmempool.co.uk/notes): short notes on patterns in the data, every number computed from the dataset at build time - [Where each sector clusters](https://londonmempool.co.uk/notes/where-sectors-cluster): 14 of the 33 Crypto companies on London Mempool are in City & Bank, the highest share in one neighbourhood of any sector with 20 or more. - [How young each sector is](https://londonmempool.co.uk/notes/how-young-each-sector-is): 64 of the 105 companies on London Mempool incorporated in 2023 or later are AI. - [Investors that stick to one sector](https://londonmempool.co.uk/notes/investors-that-stick-to-one-sector): Lowercarbon Capital is the most focused of the 61 investors with 6 or more companies on London Mempool: 6 of 6 are Climate. - [The stations closest to London tech](https://londonmempool.co.uk/notes/stations-closest-to-london-tech): Old Street is the nearest station for 101 companies on London Mempool, 2.5 times as many as Chancery Lane in second place. ## Optional - [llms-full.txt](https://londonmempool.co.uk/llms-full.txt): every company as one markdown line ## Companies Format: name (id): description. sector (also secondary sector) / subsector | tier | borough postcode | founded | funding | Companies House number | website | sources. Full records at https://londonmempool.co.uk/api/v1/companies/{id}. ### AI (177) - **1001** (`1001`): AI decision platform that models operations at ports, airports, energy and manufacturing sites and recommends or executes actions for operators. AI / Industrial AI | Fastest growing | Westminster W1D 4AL | founded 2025 | raised $39M | last round Series A, $30M, Jun 2026 | Companies House 16893514 | incorporated 2025-12-05 | SIC 62012, 62090, 63110 | licensed visa sponsor | London office, HQ elsewhere | backed by CIV, General Catalyst, Lux Capital, 9Yards, Hanabi, Sanabil Investments | near Tottenham Court Road (167 m) | https://www.1001.ai | sources: [funding](https://www.wamda.com/en/2026/06/1001-closes-30-million-series-a-build-sovereign-ai-gcc), [growth](https://www.wamda.com/en/2026/06/1001-closes-30-million-series-a-build-sovereign-ai-gcc), [address](https://find-and-update.company-information.service.gov.uk/company/16893514), [presence](https://careers.1001.ai) - **Adthena** (`adthena`): A search intelligence platform that tracks competitor ads, brand bidding and visibility across Google Ads and AI search engines. AI / Search ad intelligence | Up and coming | Tower Hamlets E14 5RE | founded 2012 | last round Series A, $14M | Companies House 08171866 | incorporated 2012-08-08 | 82 staff in filed accounts (period to 2025-12-31) | SIC 62012 | hiring 6 in London | licensed visa sponsor | work model mixed (4 London job posts) | London office, HQ elsewhere | backed by Updata Partners | near Canary Wharf (291 m) | https://www.adthena.com | sources: [funding](https://www.adthena.com/press/adthena-gets-14m-series-a-funding-for-search-marketing-intelligence/), [growth](https://www.adthena.com/about/), [address](https://www.adthena.com/contact-us/), [presence](https://www.adthena.com/contact-us/) - **Advai** (`advai`): Advai builds a platform that tests AI systems for robustness, manipulation and compliance risks before and after deployment. AI / AI assurance | Up and coming | Hackney N1 7GU | founded 2020 | Companies House 12540124 | incorporated 2020-03-31 | 21 staff in filed accounts (period to 2025-03-31) | SIC 62020, 71200, 72190 | London HQ | near Old Street (645 m) | https://www.advai.co.uk | sources: [growth](https://www.fca.org.uk/news/press-releases/fca-announces-second-cohort-ai-live-testing), [address](https://www.advai.co.uk/contact), [presence](https://www.fca.org.uk/news/press-releases/fca-announces-second-cohort-ai-live-testing) - **AI Score** (`ai-score`): Governance platform that helps companies control risk, cost and use of AI tools and agents. AI / AI Governance | Up and coming | Camden WC2H 8TJ | founded 2025 | raised $6.4M | last round Seed, $5.4M, Sep 2026 | Companies House 16381026 | incorporated 2025-04-11 | SIC 62012, 62090 | London HQ | backed by Fuel Ventures, GALLOS Technologies | near Tottenham Court Road (266 m) | https://www.aiscore.ai | sources: [funding](https://aiscore.ai/funding-annoucement/), [growth](https://aiscore.ai/funding-annoucement/), [address](https://www.aiscore.ai/contact), [presence](https://www.aiscore.ai/contact) - **Airspeed** (`airspeed`): AI agents that turn sales calls and deal data into actions for revenue teams. Formerly Glyphic. AI / Revenue AI | Fastest growing | Camden EC1N 2SW | founded 2022 | last round Series A, $20M, Jun 2026 | Companies House 14097529 | incorporated 2022-05-10 | 11 staff in filed accounts (period to 2025-05-31) | SIC 62012 | hiring 1 in London | licensed visa sponsor | London team, no office | backed by DN Capital, Atlassian Ventures, Framework Venture Partners, Point72 Ventures, Vi Partners | near Chancery Lane (97 m) | https://www.goairspeed.com | sources: [funding](https://www.goairspeed.com/blog/the-story-behind-airspeeds-20m-series-a), [growth](https://www.goairspeed.com/blog/the-story-behind-airspeeds-20m-series-a), [address](https://www.linkedin.com/company/go-airspeed), [presence](https://www.goairspeed.com/about) - **Anam** (`anam`): Developer API and platform for real-time, photorealistic interactive AI avatars used in support, sales, tutoring and training. AI / Interactive AI Avatars | Up and coming | Islington EC1Y 8AF | founded 2023 | raised $9M | last round Seed, $9M, Jul 2025 | Companies House 15214363 | incorporated 2023-10-16 | 4 staff in filed accounts (period to 2024-12-31) | SIC 62090 | London HQ | GitHub anam-org | backed by Concept Ventures, ElevenLabs, Redpoint Ventures, SV Angel, Torch Capital | near Old Street (103 m) | https://anam.ai | sources: [funding](https://www.vcbacked.co/company/anam), [growth](https://www.vcbacked.co/company/anam), [address](https://find-and-update.company-information.service.gov.uk/company/15214363), [presence](https://vestbee.com/insights/articles/anam-secures-1-75-m) - **Ankar** (`ankar`): AI platform for the full patent lifecycle, from invention ideas to drafting and prosecution. AI / Patent AI | Fastest growing | Tower Hamlets E1W 9US | founded 2023 | raised $24M | last round Series A, $20M, Dec 2025 | Companies House 15213676 | incorporated 2023-10-16 | 14 staff in filed accounts (period to 2025-12-31) | SIC 62012 | hiring 11 in London | licensed visa sponsor | work model mixed (11 London job posts) | London HQ | on Tech Nation Future Fifty 2026 | backed by Atomico, Daphni, Index Ventures, Norrsken VC | near Whitechapel (132 m) | https://www.ankar.ai | sources: [funding](https://www.ankar.ai/blog/ankar-raises-20m-in-series-a-funding-led-by-atomico-to-transform-how-breakthrough-ideas-become-protected-innovation), [growth](https://www.ankar.ai/blog/ankar-raises-20m-in-series-a-funding-led-by-atomico-to-transform-how-breakthrough-ideas-become-protected-innovation), [address](https://find-and-update.company-information.service.gov.uk/company/15213676), [presence](https://jobs.ashbyhq.com/ankar/9bccbebb-3a1a-480a-a71a-03d08d0c714d) - **Apollo Research** (`apollo-research`): AI safety company researching model scheming and selling Watcher, a monitoring tool for coding agents. AI / AI safety | Up and coming | Hackney EC2A 4XE | founded 2023 | last round Seed, undisclosed, Jan 2026 | Companies House 15289159 | incorporated 2023-11-16 | 2 staff in filed accounts (period to 2025-12-31) | SIC 62020 | licensed visa sponsor | London HQ | backed by 50Y, Common Metal, Juniper Ventures, Macroscopic Ventures, Ocean Investment, Progress Fund, SAIF | near Shoreditch High Street (481 m) | https://www.apolloresearch.ai | sources: [funding](https://www.apolloresearch.ai/blog/apollo-research-is-becoming-a-pbc), [growth](https://www.apolloresearch.ai/blog/apollo-update-may-2026), [address](https://app.welcometothejungle.com/jobs/v5mmmXnb), [presence](https://www.apolloresearch.ai/careers) - **Applied Computing** (`applied-computing`): Industrial AI that monitors, forecasts and optimises refineries, oil and gas and petrochemical plants. AI / Industrial AI | Fastest growing | Hackney EC2A 4NE | founded 2023 | raised $20M+ | last round $20M, Jul 2026 | Companies House 15350699 | incorporated 2023-12-14 | 11 staff in filed accounts (period to 2025-12-31) | SIC 58290, 62020, 62090 | hiring 5 in London | licensed visa sponsor | work model remote (5 London job posts) | London HQ | GitHub appliedcomputingtech | Conception X CX24 | backed by KBR, Databricks Ventures | near Old Street (321 m) | https://www.appliedcomputing.com | sources: [funding](https://tech.eu/2026/07/16/applied-computing-lands-20m-to-expand-foundation-ai-for-energy/), [growth](https://tech.eu/2026/07/16/applied-computing-lands-20m-to-expand-foundation-ai-for-energy/), [address](https://www.appliedcomputing.com/privacy-policy), [presence](https://www.appliedcomputing.com/privacy-policy) - **Artificial Societies** (`artificial-societies`): Simulates how audiences and stakeholders will react, so companies can test decisions before making them. AI / Audience simulation | Up and coming | City of London EC4A 3TW | founded 2024 | raised $5.35M | last round Seed, $3.35M, Aug 2025 | Companies House 15963818 | incorporated 2024-09-18 | 2 staff in filed accounts (period to 2025-09-30) | SIC 63110 | licensed visa sponsor | London HQ | GitHub artificial-societies | Y Combinator W25 | backed by Point72 Ventures, Y Combinator | near Chancery Lane (373 m) | https://societies.ai | sources: [funding](https://www.unite.ai/artificial-societies-raises-5-35m-to-make-ai-powered-social-simulations-universally-accessible/), [growth](https://www.ycombinator.com/companies/artificial-societies), [address](https://societies.ai/careers/growth-engineer), [presence](https://societies.ai/careers) - **Ascendx** (`ascendx`): Buys and grows Salesforce-native apps for sales, service, workflow automation and CRM data protection. AI / Agentic CRM Software | Fastest growing | Islington EC1V 2NX | founded 2023 | last round Growth, $110M ($60M equity, $50M debt), May 2025 | Companies House 14641432 | incorporated 2023-02-06 | SIC 62012 | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2026, #40; Tech Nation Future Fifty 2026 | backed by Osprey Investors | near Old Street (146 m) | https://ascendx.cloud | sources: [funding](https://ascendx.cloud/news/ascendx-raises-110m-to-revolutionize-crm-with-ai-powered-insights-led-by-osprey-investors/), [growth](https://ascendx.cloud/news/ascendx-raises-110m-to-revolutionize-crm-with-ai-powered-insights-led-by-osprey-investors/), [address](https://find-and-update.company-information.service.gov.uk/company/14641432), [presence](https://www.linkedin.com/company/ascendx-cloud) - **Attio** (`attio`): AI-native CRM that builds itself around a company's data for go-to-market teams. AI / AI CRM | Fastest growing | Islington EC1R 0JH | raised $116M | last round Series B, $52M, Aug 2025 | Companies House 10719702 | incorporated 2017-04-11 | 24 staff in filed accounts (period to 2025-01-31) | SIC 62012, 82990 | hiring 12 in London | licensed visa sponsor | work model hybrid (12 London job posts) | London HQ | GitHub attio | on Sifted 100 UK & Ireland 2026, #53 | backed by GV, 01A, Balderton Capital, Point Nine, Redpoint Ventures | near Farringdon (636 m) | https://attio.com | sources: [funding](https://www.prnewswire.co.uk/news-releases/attio-raises-52m-series-b-to-scale-the-first-ai-native-crm-for-go-to-market-builders-302538368.html), [growth](https://www.prnewswire.co.uk/news-releases/attio-raises-52m-series-b-to-scale-the-first-ai-native-crm-for-go-to-market-builders-302538368.html), [address](https://app.welcometothejungle.com/jobs/DUD_kups/company), [presence](https://attio.com/careers) - **Auquan** (`auquan`): Agentic AI workflows for institutional finance, automating deal screening, credit analysis, IC memos and portfolio monitoring. AI (also Fintech) / Agentic AI Finance | Up and coming | Westminster W2 1AY | founded 2018 | last round Seed, $4.5M, Oct 2024 | Companies House 11437288 | incorporated 2018-06-28 | 6 staff in filed accounts (period to 2025-06-30) | SIC 62012, 63120 | licensed visa sponsor | London HQ | backed by Peak XV's Surge, Neotribe Ventures | near Edgware Road (Bakerloo) (261 m) | https://www.auquan.com | sources: [growth](https://www.auquan.com/about), [address](https://find-and-update.company-information.service.gov.uk/company/11437288), [presence](https://www.auquan.com/privacy) - **AutogenAI** (`autogenai`): Generative AI platform that helps companies and nonprofits write bids, proposals, grants and RFP responses. AI / Proposal writing AI | Up and coming | Islington N1 9LG | founded 2022 | Companies House 13907128 | incorporated 2022-02-10 | SIC 62090 | hiring 3 in London | licensed visa sponsor | London office, HQ elsewhere | on Tech Nation Future Fifty 2025; LinkedIn Top Startups UK 2024, #19 | backed by Salesforce Ventures, Spark Capital, Blossom Capital | near Angel (409 m) | https://www.autogenai.com | sources: [growth](https://job-boards.greenhouse.io/autogenai/jobs/5432657008), [address](https://www.autogenai.com/uk/privacy-policy/), [presence](https://www.linkedin.com/company/autogenai) - **autone** (`autone`): AI inventory planning software that helps fashion, beauty and home retailers buy, allocate and replenish stock. AI / Retail Inventory AI | Up and coming | Islington EC1V 2NX | founded 2021 | Companies House 13876334 | incorporated 2022-01-27 | SIC 58290 | London HQ | Y Combinator S22 | backed by General Catalyst, 2100 Ventures, Motier Ventures, Seedcamp, Speedinvest, Y Combinator | near Old Street (146 m) | https://www.autone.io | sources: [growth](https://uk.linkedin.com/company/hello-autone), [address](https://find-and-update.company-information.service.gov.uk/company/13876334), [presence](https://en.ain.ua/2023/10/06/speedinvest-participates-in-4-5m-for-autone) - **Azoma** (`azoma`): Platform helping consumer brands get discovered and recommended by AI search engines and AI shopping agents. AI / AI Search Optimisation | Up and coming | Camden NW6 1HU | last round Pre-Series A, $4M, Dec 2025 | Companies House BR026722 | licensed visa sponsor | London office, HQ elsewhere | backed by eBay Ventures, Ignite Ventures, MaRS IAF, Rank Ventures, Techstars, Twinpath Ventures | near West Hampstead (126 m) | https://www.azoma.ai | sources: [funding](https://www.uktech.news/ai/azoma-becomes-latest-ai-search-startup-to-secure-funding-20251205), [growth](https://www.uktech.news/ai/azoma-becomes-latest-ai-search-startup-to-secure-funding-20251205), [address](https://www.azoma.ai), [presence](https://www.research-live.com/article/news/dunnhumby-ventures-invests-in-agentic-commerce-firm/id/5153106) - **Basecamp Research** (`basecamp-research`): Trains EDEN biological AI models on proprietary natural-world genomic data to design new medicines. AI (also Health) / AI Drug Discovery | Fastest growing | Islington EC1R 0AT | founded 2019 | raised $225M | last round Series C, $140M, Sep 2026 | Companies House 12354133 | incorporated 2019-12-09 | 26 staff in filed accounts (period to 2024-12-31) | SIC 72110, 72190 | hiring 8 in London | licensed visa sponsor | work model on-site (8 London job posts) | London HQ | backed by S32, Anthology Fund, Anthropic, Catalio Capital Management, European Tech Collective, Firebrand Ventures, King Philanthropies, Menlo Ventures, NATO Innovation Fund, NVentures, Redalpine, River Capital, Rockefeller, Sovereign AI Fund | near Farringdon (448 m) | https://www.basecamp-research.com | sources: [funding](https://tech.eu/2026/09/23/anthropic-and-nvidia-back-basecamp-research-in-140m-series-c/), [growth](https://tech.eu/2026/09/23/anthropic-and-nvidia-back-basecamp-research-in-140m-series-c/), [address](https://www.basecamp-research.com/contact), [presence](https://builtinlondon.uk/company/basecamp-research) - **Beamery** (`beamery`): AI workforce platform helping large enterprises hire, redeploy and reskill staff using skills intelligence. AI / Talent intelligence | Well known | Islington EC1Y 8LZ | founded 2013 | raised $228M | last round Series D, $50M, Dec 2022 | Companies House 08342136 | incorporated 2012-12-28 | SIC 62090 | licensed visa sponsor | London HQ | backed by EQT Ventures, Index Ventures, Ontario Teachers' Pension Plan, Accenture Ventures, Edenred Capital Partners, Grupa Pracuj, M12, Workday Ventures | near Old Street (383 m) | https://www.beamery.com | sources: [funding](https://en.wikipedia.org/wiki/Beamery), [growth](https://en.wikipedia.org/wiki/Beamery), [address](https://www.beamery.com/privacy-policy), [presence](https://en.wikipedia.org/wiki/Beamery) - **Behavox** (`behavox`): AI platform for banks and financial firms covering communications surveillance, trade surveillance and regulatory compliance. AI (also Fintech) / Compliance Surveillance | Fastest growing | Lambeth SE1 7TJ | founded 2014 | last round Preferred equity, $175M, Jun 2026 | Companies House 09066452 | incorporated 2014-06-02 | SIC 82990 | hiring 4 in London | licensed visa sponsor | London HQ | backed by HPS Investment Partners, SoftBank Group, Citi, Hoxton Ventures, Index Ventures | near Vauxhall (647 m) | https://www.behavox.com | sources: [funding](https://pulse2.com/behavox-raises-175-million-from-hps-investment-partners-to-accelerate-global-growth/amp/), [growth](https://pulse2.com/behavox-raises-175-million-from-hps-investment-partners-to-accelerate-global-growth/amp/), [address](https://www.behavox.com/privacy-policy), [presence](https://www.behavox.com/privacy-policy) - **Bitfount** (`bitfount`): Federated AI platform that lets clinical trial sponsors, hospitals and AI developers analyse patient data without moving it. AI (also Health) / Federated AI | Up and coming | Islington EC1V 2NX | founded 2020 | last round Series A, $8M, Jul 2025 | Companies House 12390975 | incorporated 2020-01-07 | 22 staff in filed accounts (period to 2025-12-31) | SIC 62012 | licensed visa sponsor | London HQ | GitHub bitfount | backed by Ahren Innovation Capital, Foresight Group, Pace Ventures, Parkwalk Advisors, Portfolio Ventures | near Old Street (146 m) | https://www.bitfount.com | sources: [funding](https://tech.eu/2025/07/23/bitfount-raises-8m-to-unlock-clinical-research-data-with-federated-ai/), [growth](https://tech.eu/2025/07/23/bitfount-raises-8m-to-unlock-clinical-research-data-with-federated-ai/), [address](https://www.bitfount.com/privacy-policy), [presence](https://www.bitfount.com/privacy-policy) - **Bolt Insight** (`bolt-insight`): AI-moderated consumer research platform, BoltChatAI, that runs qualitative interviews at quantitative scale for brands. AI / AI Market Research | Up and coming | Southwark SE1 0HS | founded 2018 | last round £7M, Dec 2025 | Companies House 11355973 | incorporated 2018-05-11 | 12 staff in filed accounts (period to 2024-12-31) | SIC 62012 | hiring 1 in London | licensed visa sponsor | London HQ | backed by Pembroke VCT, 212, Active Partners, TIBAS Ventures, Velocity | near Borough (482 m) | https://boltinsight.com | sources: [growth](https://www.uktech.news/funding/bolt-insight-closes-7m-round-for-its-ai-consumer-intelligence-platform-20251210), [address](https://boltinsight.com), [presence](https://boltinsight.com) - **Callosum** (`callosum`): Software that splits AI workloads across many different chip types to run them faster and cheaper. AI / AI Compute Orchestration | Fastest growing | Tower Hamlets E1 8EU | founded 2024 | raised $110M | last round Seed, $100M, Aug 2026 | Companies House 16076949 | incorporated 2024-11-13 | SIC 72190 | hiring 13 in London | licensed visa sponsor | work model on-site (13 London job posts) | London HQ | backed by Atomico, DCVC, Plural, UK Sovereign AI Fund | near Aldgate East (263 m) | https://www.callosum.com | sources: [funding](https://www.kucoin.com/news/flash/callosum-technologies-secures-100m-seed-round-to-optimize-ai-workloads), [growth](https://www.callosum.com/blog/seed-round), [address](https://find-and-update.company-information.service.gov.uk/company/16076949), [presence](https://jobs.ashbyhq.com/callosum) - **Capsa AI** (`capsa-ai`): AI platform that indexes a private equity fund's documents and data to speed up deal work. AI (also Fintech) / AI for private capital | Fastest growing | Camden WC1X 9LP | founded 2023 | raised $18M+ | last round Series A, $18M, Jun 2026 (led by TX Ventures and Pivot Investment Partners) | Companies House 15323501 | incorporated 2023-12-02 | 8 staff in filed accounts (period to 2025-12-31) | SIC 62012 | licensed visa sponsor | London HQ | Antler | backed by Pivot Investment Partners, TX Ventures, Antler, Bek Ventures, Cornerstone VC, Outward VC | near King's Cross & St Pancras International (667 m) | https://capsa.ai | sources: [funding](https://www.capsa.ai/news/announcing-our-18m-series-a), [growth](https://businesscloud.co.uk/news/capsa-ai-raises-18m-to-expand-ai-platform-for-private-capital/), [address](https://www.capsa.ai/news/announcing-our-18m-series-a), [presence](https://capsa.ai/) - **causaLens** (`causalens`): Builds AI digital workers that automate enterprise analysis and decision tasks, rooted in causal AI. AI / Enterprise AI Agents | Up and coming | Hammersmith and Fulham W6 8BJ | last round Series A, $45M, Jan 2022 | Companies House 10237978 | incorporated 2016-06-17 | 42 staff in filed accounts (period to 2025-06-30) | SIC 62012 | licensed visa sponsor | London HQ | backed by Dorilton Ventures, Molten Ventures, Generation Ventures, GP Bullhound, IQ Capital | near Hammersmith (340 m) | https://causalens.com | sources: [funding](https://causalens.com/causal-ai/startup-series-a-funding-round-45-million), [growth](https://causalens.com/causal-ai/startup-series-a-funding-round-45-million), [address](https://causalens.com/contact), [presence](https://www.vcbacked.co/company/causalens) - **Causaly** (`causaly`): Agentic AI research platform and biomedical knowledge graph that helps pharma R&D teams find targets and biomarkers. AI (also Health) / AI Drug Discovery | Up and coming | Hackney N1 7LQ | founded 2018 | raised $93M | last round Series B, $60M, Jul 2023 | Companies House 11368328 | incorporated 2018-05-17 | SIC 62090 | hiring 4 in London | licensed visa sponsor | work model hybrid (4 London job posts) | London HQ | backed by ICONIQ, EBRD, Index Ventures, Marathon Venture Capital, Pentech Ventures, Visionaries Club | near Old Street (470 m) | https://www.causaly.com | sources: [funding](https://techcrunch.com/2023/07/13/causaly-an-ai-platform-for-drug-discovery-and-biomedical-research-raises-60m/), [growth](https://techcrunch.com/2023/07/13/causaly-an-ai-platform-for-drug-discovery-and-biomedical-research-raises-60m/), [address](https://www.causaly.com/privacy-policy), [presence](https://www.linkedin.com/company/causaly) - **Chattermill** (`chattermill`): An AI platform that pulls customer feedback from surveys, reviews, support chats and calls and explains what drives satisfaction scores. AI / Customer feedback analytics | Up and coming | Tower Hamlets E1 5JL | founded 2015 | last round Series B, $26M, Dec 2022 | Companies House 09604448 | incorporated 2015-05-22 | SIC 62012 | licensed visa sponsor | London HQ | backed by Beringea, Blossom Street Ventures, btov Partners, DN Capital, Runa Capital, Ventech | near Shoreditch High Street (473 m) | https://chattermill.com | sources: [funding](https://www.research-live.com/article/news/chattermill-secures-26m-investment/id/5106282), [growth](https://www.research-live.com/article/news/chattermill-secures-26m-investment/id/5106282), [address](https://chattermill.com/), [presence](https://www.research-live.com/article/news/chattermill-secures-26m-investment/id/5106282) - **Civo** (`civo`): UK cloud provider offering Kubernetes, GPU compute and sovereign AI services from its own data centres. AI / Sovereign cloud | Up and coming | Islington EC2A 4AW | founded 2015 | Companies House 09568551 | incorporated 2015-04-30 | 25 staff in filed accounts (period to 2025-04-30) | SIC 62020 | licensed visa sponsor | London HQ | GitHub civo | near Old Street (174 m) | https://www.civo.com | sources: [growth](https://www.civo.com/newsroom), [address](https://www.civo.com/legal/privacy), [presence](https://www.linkedin.com/company/civocloud) - **CodeWords** (`codewords`): Lets non-coders build and run AI agents and automations by describing them in plain language. AI / AI agent automation | Up and coming | Kensington and Chelsea SW7 4AG | founded 2023 | raised $9M+ | last round Seed, $9M, May 2026 (led by Visionaries) | Companies House 14656367 | incorporated 2023-02-11 | 10 staff in filed accounts (period to 2025-12-31) | SIC 62012 | licensed visa sponsor | London HQ | backed by Visionaries Club, firstminute capital, Illusian, Sequel | near Gloucester Road (501 m) | https://codewords.ai | sources: [funding](https://tech.eu/2026/05/07/codewords-raises-9m-to-bring-proactive-ai-agents-to-businesses/), [growth](https://tech.eu/2026/05/07/codewords-raises-9m-to-bring-proactive-ai-agents-to-businesses/), [address](https://www.codewords.ai/privacy), [presence](https://tech.eu/2026/05/07/codewords-raises-9m-to-bring-proactive-ai-agents-to-businesses/) - **Cogna** (`cogna`): Uses AI to build custom operations software for utilities, logistics and field service companies. AI / AI enterprise software | Up and coming | City of London WC2A 1QS | founded 2023 | raised $19.75M | last round Series A, $15M, Nov 2024 (led by Notion Capital) | Companies House 14854153 | incorporated 2023-05-08 | SIC 62012 | licensed visa sponsor | London HQ | on Tech Nation Upscale 2026 | backed by Notion Capital, Chalfen Ventures, Hoxton Ventures | near Chancery Lane (125 m) | https://cogna.co | sources: [funding](https://techcrunch.com/2024/11/11/from-self-driving-cars-to-ai-that-writes-enterprise-software-cogna-founder-raises-15m/), [growth](https://techcrunch.com/2024/11/11/from-self-driving-cars-to-ai-that-writes-enterprise-software-cogna-founder-raises-15m/), [address](https://cogna.co), [presence](https://builtinlondon.uk/company/cogna) - **Colossyan** (`colossyan`): AI video platform that turns scripts and documents into avatar-led training videos for companies, with offices in Budapest and London. AI / AI Video | Up and coming | Islington EC2A 4NJ | founded 2020 | last round $22M, Feb 2024 | Companies House 15434541 | incorporated 2024-01-23 | 14 staff in filed accounts (period to 2025-01-31) | SIC 82990 | hiring 2 in London | licensed visa sponsor | work model hybrid (2 London job posts) | London HQ | backed by Lakestar, Launchub Ventures, APX, Day One Capital, Emerge Education, Oktogon Ventures | near Old Street (301 m) | https://www.colossyan.com | sources: [funding](https://en.wikipedia.org/wiki/Colossyan), [growth](https://www.colossyan.com/careers), [address](https://colossyan.teamtailor.com/jobs/7044438-account-executive-london), [presence](https://en.wikipedia.org/wiki/Colossyan) - **Conduct** (`conduct`): AI that helps IT teams understand, change and migrate complex enterprise systems like SAP. AI / Enterprise Software AI | Fastest growing | Westminster W1D 4AL | founded 2024 | raised $60M+ | last round Series A, $60M, Jun 2026 | Companies House 15396489 | incorporated 2024-01-08 | 6 staff in filed accounts (period to 2025-01-31) | SIC 62012, 62020 | hiring 13 in London | licensed visa sponsor | work model on-site (13 London job posts) | London HQ | backed by ICONIQ, Index Ventures, Booom, Creandum, Lucid Capital, SAP | near Tottenham Court Road (167 m) | https://www.conduct.ai | sources: [funding](https://www.conduct.ai/blog/series-a), [growth](https://www.conduct.ai/blog/series-a), [address](https://api.ashbyhq.com/posting-api/job-board/conduct), [presence](https://conduct.ai/about) - **Conjecture** (`conjecture`): AI safety lab building Cognitive Emulation, an architecture for more controllable and interpretable AI. AI / AI safety | Up and coming | Southwark SE1 1JA | founded 2022 | Companies House 13966466 | incorporated 2022-03-09 | SIC 72190 | licensed visa sponsor | London HQ | near Borough (89 m) | https://www.conjecture.dev | sources: [growth](https://www.conjecture.dev/), [address](https://www.conjecture.dev/privacy-policy), [presence](https://www.conjecture.dev/) - **Cosine** (`cosine`): UK sovereign AI lab training Lumen coding models and agents that run in secure or air-gapped environments. AI / Coding agents | Up and coming | Hackney EC2A 3AY | founded 2022 | last round Seed, $2.5M, Aug 2024 | Companies House 14547479 | incorporated 2022-12-19 | 13 staff in filed accounts (period to 2025-12-31) | SIC 62012 | hiring 2 in London | licensed visa sponsor | work model on-site (2 London job posts) | London HQ | Y Combinator W23 | backed by SOMA Capital, Uphonest Capital, Focal, Lakestar | near Shoreditch High Street (399 m) | https://www.cosine.sh | sources: [funding](https://siliconangle.com/2024/08/12/cosine-raises-2-5m-uncannily-human-ai-coding-assistant-genie/), [growth](https://www.cosine.sh/blog), [address](https://find-and-update.company-information.service.gov.uk/company/14547479), [presence](https://api.ashbyhq.com/posting-api/job-board/cosine) - **Crimson** (`crimson`): AI case intelligence platform for litigation lawyers, used by firms like Dentons, A&O Shearman and Duane Morris. AI / Legal AI | Up and coming | City of London EC2M 7PP | founded 2024 | raised $2.5M | last round Seed, $2.5M, May 2026 | Companies House 15968263 | incorporated 2024-09-20 | 3 staff in filed accounts (period to 2025-09-30) | SIC 62012 | licensed visa sponsor | London HQ | Y Combinator X25 | backed by Y Combinator, Amino Capital, Eight Capital, Progressive Ventures, Scale Asia Ventures, Symphony Ventures, Twenty Two Ventures | near Liverpool Street (147 m) | https://crimson.law | sources: [funding](https://www.ycombinator.com/companies/crimson), [growth](https://www.ycombinator.com/companies/crimson), [address](https://crimson.law/privacy), [presence](https://crimson.law/about) - **Curvestone** (`curvestone`): AI platform that reviews case files and documents against a firm's compliance rules for UK mortgage networks, lenders, brokers and wealth managers. AI / Compliance automation | Fastest growing | Hammersmith and Fulham SW6 4TJ | raised $4M | last round Seed, $4M, Dec 2025 | Companies House 09249565 | incorporated 2014-10-06 | 8 staff in filed accounts (period to 2025-12-31) | SIC 62012 | licensed visa sponsor | London HQ | backed by MTech Capital, Boost Capital Partners, D2 Fund, Portfolio Ventures | near Parsons Green (192 m) | https://www.curvestone.io | sources: [funding](https://pulse2.com/curvestone-ai-4-million-seed-funding-closed-to-scale-reliable-automation-for-regulated-industries/amp/), [growth](https://pulse2.com/curvestone-ai-4-million-seed-funding-closed-to-scale-reliable-automation-for-regulated-industries/amp/), [address](https://find-and-update.company-information.service.gov.uk/company/09249565), [presence](https://pulse2.com/curvestone-ai-4-million-seed-funding-closed-to-scale-reliable-automation-for-regulated-industries/amp/) - **Darktrace** (`darktrace`): Darktrace sells AI-based cybersecurity software that detects and responds to threats across networks, email and cloud. AI / Cybersecurity | Well known | Westminster WC2R 0DT | founded 2013 | Companies House 08562035 | incorporated 2013-06-10 | SIC 62012 | licensed visa sponsor | London office, HQ elsewhere | near Embankment (319 m) | https://darktrace.com | sources: [growth](https://en.wikipedia.org/wiki/Darktrace), [address](https://darktrace.com/contact), [presence](https://darktrace.com/contact) - **Datamaran** (`datamaran`): Software that uses AI to monitor external ESG and regulatory risks for corporate risk and sustainability teams. AI / ESG risk analytics | Up and coming | Southwark SE1 3UD | founded 2014 | last round Series C, $33M, Sep 2024 | Companies House 09066496 | incorporated 2014-06-02 | SIC 62012 | licensed visa sponsor | London HQ | backed by Fortive, American Electric Power, Morgan Stanley Expansion Capital | near London Bridge (564 m) | https://www.datamaran.com | sources: [funding](https://siliconcanals.com/datamaran-raises-e29-5m-from-morgan-stanley/), [growth](https://siliconcanals.com/datamaran-raises-e29-5m-from-morgan-stanley/), [address](https://www.datamaran.com/contact-us), [presence](https://siliconcanals.com/datamaran-raises-e29-5m-from-morgan-stanley/) - **Definely** (`definely`): AI tools that help lawyers draft, review and understand complex contracts, used by Magic Circle and top US law firms. AI / Legal AI | Fastest growing | Tower Hamlets E1 8FA | founded 2017 | raised $40M | last round Series B, $30M, Jun 2025 | Companies House 10721979 | incorporated 2017-04-12 | 48 staff in filed accounts (period to 2025-12-31) | SIC 62012 | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2026, #84; Tech Nation Future Fifty 2025; Deloitte UK Technology Fast 50 2023, #23 | backed by Revaia, Alumni Ventures, Beacon Capital, Clio, Cornerstone VC, Octopus Ventures, The Raine Group, Zrosk Investment Management | near Aldgate East (36 m) | https://www.definely.com | sources: [funding](https://www.definely.com/blogs/ai-powered-legal-tech-scale-up-definely-raises-30m-series-b), [growth](https://www.definely.com/blogs/ai-powered-legal-tech-scale-up-definely-raises-30m-series-b), [address](https://www.definely.com), [presence](https://siliconcanals.com/londons-definely-lands-26-2m/) - **Dessn** (`dessn`): Design tool that lets product teams design and prototype directly inside their real codebase. AI / AI design tools | Up and coming | Tower Hamlets E1 5JL | raised $6M+ | last round Seed, $6M, May 2026 (led by Connect Ventures) | Companies House 17341503 | incorporated 2026-07-15 | SIC 62012 | London office, HQ elsewhere | backed by Connect Ventures, Betaworks, Moxxie Ventures, N49P | near Shoreditch High Street (473 m) | https://dessn.com | sources: [funding](https://techcrunch.com/2026/05/12/dessn-raises-6m-for-its-production-focused-design-tool/), [growth](https://pulse2.com/dessn-raises-6-million-to-let-product-teams-design-directly-in-the-real-codebase/), [address](https://dessn.com/terms), [presence](https://dessn.com) - **Dex** (`dex`): Dex is an AI recruiter that matches candidates with roles at tech companies and offers career coaching. AI / AI recruiting | Up and coming | Waltham Forest E17 3NU | founded 2025 | raised $8.4M | last round Seed, $5.3M, Apr 2026 | Companies House 16276853 | incorporated 2025-02-26 | 8 staff in filed accounts (period to 2025-12-31) | SIC 62012 | licensed visa sponsor | London HQ | backed by Notion Capital, Andreessen Horowitz, Concept Ventures | near Wood Street (99 m) | https://meetdex.ai | sources: [funding](https://tech.eu/2026/04/29/dex-lands-53m-to-grow-its-ai-driven-talent-matching-platform), [growth](https://tech.eu/2026/04/29/dex-lands-53m-to-grow-its-ai-driven-talent-matching-platform), [address](https://meetdex.ai/privacy), [presence](https://tech.eu/2026/04/29/dex-lands-53m-to-grow-its-ai-driven-talent-matching-platform) - **DigitalGenius** (`digitalgenius`): DigitalGenius provides an AI agent that resolves pre- and post-purchase customer questions for ecommerce brands. AI / Customer service AI | Up and coming | Camden WC1V 7AA | founded 2014 | Companies House 09024313 | incorporated 2014-05-06 | SIC 62012, 62020, 63110 | London HQ | backed by Global Founders Capital, Compound, Lerer Hippeau, Lumia Capital, MMC Ventures, Paua Ventures, RRE Ventures, Runa Capital, Salesforce Ventures | near Covent Garden (311 m) | https://www.digitalgenius.com | sources: [growth](https://www.digitalgenius.com), [address](https://www.digitalgenius.com/contact-us), [presence](https://www.digitalgenius.com/contact-us) - **Doubleword** (`doubleword`): Inference platform that lets enterprises run open-source AI models on their own infrastructure, cheaply. AI / Self-hosted LLM inference | Up and coming | City of London EC3V 3QQ | founded 2021 | raised $15M | last round Series A, £9M, May 2025 (led by Dawn Capital) | Companies House 13353288 | incorporated 2021-04-23 | 10 staff in filed accounts (period to 2025-12-31) | SIC 72190 | licensed visa sponsor | London HQ | GitHub doublewordai | backed by Dawn Capital, K5 Tokyo Black | near Bank (250 m) | https://doubleword.ai | sources: [funding](https://businesscloud.co.uk/news/london-based-doubleword-raises-9m-following-us-expansion/), [growth](https://businesscloud.co.uk/news/london-based-doubleword-raises-9m-following-us-expansion/), [address](https://find-and-update.company-information.service.gov.uk/company/13353288), [presence](https://find-and-update.company-information.service.gov.uk/company/13353288) - **dunnhumby** (`dunnhumby`): dunnhumby uses customer data science to help retailers and brands with pricing, promotions, loyalty and retail media. AI / Customer data science | Well known | Hammersmith and Fulham W6 7NL | founded 1989 | Companies House 02388853 | incorporated 1989-05-24 | SIC 70229 | hiring 14 in London | licensed visa sponsor | London HQ | near Hammersmith (371 m) | https://www.dunnhumby.com | sources: [growth](https://find-and-update.company-information.service.gov.uk/company/02388853/filing-history), [address](https://www.dunnhumby.com/contact-us/), [presence](https://www.dunnhumby.com/contact-us/) - **Edgify** (`edgify`): On-device AI that runs product recognition and loss prevention on self-checkouts, scales and cameras in retail stores. AI / Retail Edge AI | Up and coming | Camden NW1 3AD | raised $25M | last round Series A+, $9M, Aug 2026 | Companies House 09359462 | incorporated 2014-12-17 | 9 staff in filed accounts (period to 2025-12-31) | SIC 62090 | London HQ | backed by Mangrove Capital Partners, Rank Ventures | near Warren Street (113 m) | https://edgify.ai | sources: [funding](https://www.uktech.news/ai/edgify-raises-6-7m-to-power-ai-infrastructure-for-physical-retail-20260811), [growth](https://www.uktech.news/ai/edgify-raises-6-7m-to-power-ai-infrastructure-for-physical-retail-20260811), [address](https://edgify.ai/privacy-policy), [presence](https://thenextweb.com/news/edgify-9m-edge-ai-retail-supermarket-checkouts) - **Electric Twin** (`electric-twin`): AI synthetic audiences that simulate how real customers and populations respond, used for market research. AI / Synthetic Audiences | Up and coming | Westminster W1F 0PQ | founded 2023 | raised $14M | last round $10M round, Feb 2026 | Companies House 15173006 | incorporated 2023-09-28 | 11 staff in filed accounts (period to 2025-09-30) | SIC 62012, 63110, 73200 | hiring 5 in London | licensed visa sponsor | work model hybrid (5 London job posts) | London HQ | backed by Atomico, LocalGlobe, Mercuri | near Piccadilly Circus (351 m) | https://electrictwin.com | sources: [funding](https://electrictwin.com/blog/electric-twin-announcing-14m-in-funding), [growth](https://electrictwin.com/blog/electric-twin-announcing-14m-in-funding), [address](https://electrictwin.com/terms), [presence](https://electrictwin.com/careers) - **ElevenLabs** (`elevenlabs`): AI voice company making realistic speech, voice cloning and voice agents, with its main hub in London. AI / Voice AI | Well known | Westminster W1F 0DQ | founded 2022 | raised $781M | last round Series D, $500M, Feb 2026 | Companies House 13826669 | incorporated 2022-01-04 | 53 staff in filed accounts (period to 2025-12-31) | SIC 62012, 62090 | licensed visa sponsor | London office, HQ elsewhere | GitHub elevenlabs | on Forbes AI 50 2026; Tech Nation Future Fifty 2025; LinkedIn Top Startups UK 2025, #2; Forbes AI 50 2025; Forbes AI 50 2024 | backed by Sequoia Capital, AMP Coalition, Andreessen Horowitz, BOND, BroadLight, Evantic Capital, ICONIQ, Lightspeed Venture Partners, NFDG, Smash Capital, Valor Capital | near Piccadilly Circus (397 m) | https://elevenlabs.io | sources: [funding](https://pulse2.com/elevenlabs-500-million-series-d-11-billion-valuation/), [growth](https://elevenlabs.io/blog/uk-mou-and-expansion), [address](https://find-and-update.company-information.service.gov.uk/company/13826669), [presence](https://elevenlabs.io/blog/uk-mou-and-expansion) - **Elyos AI** (`elyos-ai`): AI agents that answer calls, book jobs and handle customer operations for plumbers, electricians and HVAC firms. AI / AI Agents For Trades | Up and coming | Hackney EC1V 1AZ | founded 2023 | last round Series A, $13M, Jan 2026 | Companies House 14924564 | incorporated 2023-06-08 | 9 staff in filed accounts (period to 2025-12-31) | SIC 35130, 35140, 62012, 62020 | hiring 8 in London | licensed visa sponsor | work model on-site (8 London job posts) | London HQ | Y Combinator S23 | backed by Blackbird, Pi Labs, Y Combinator | near Old Street (154 m) | https://www.elyos.ai | sources: [growth](https://www.elyos.ai/careers), [address](https://elyos.ai/contact-us), [presence](https://jobs.ashbyhq.com/elyos/b45590cc-94fc-4662-b08e-1ae4245c792f) - **Encord** (`encord`): Data platform AI teams use to curate, label and evaluate training data, especially for physical AI. AI / AI data infrastructure | Fastest growing | Hackney EC2A 4NE | founded 2020 | raised $110M | last round Series C, $60M, Feb 2026 | Companies House 12330483 | incorporated 2019-11-25 | 51 staff in filed accounts (period to 2024-12-31) | SIC 62012 | licensed visa sponsor | London HQ | GitHub encord-team | Y Combinator W21 | backed by Wellington Management, Bright Pixel Capital, Crane Venture Partners, CRV, Harpoon Ventures, Isomer Capital, N47, Y Combinator | near Old Street (321 m) | https://encord.com | sources: [funding](https://pulse2.com/encord-60-million-series-c-raised-to-scale-ai-native-data-infrastructure/), [growth](https://pulse2.com/encord-60-million-series-c-raised-to-scale-ai-native-data-infrastructure/), [address](https://encord.com/terms), [presence](https://craft.co/encord) - **Ethos** (`ethos`): AI expert network that profiles specialists from their papers, code and other work, then matches them with companies for consulting projects and full-time roles. AI / AI expert matching | Fastest growing | Islington N1 9AB | founded 2024 | last round Series A, $22.75M, May 2026 | Companies House 15769231 | incorporated 2024-06-10 | 3 staff in filed accounts (period to 2025-12-31) | SIC 58290 | London HQ | backed by Andreessen Horowitz, General Catalyst | near King's Cross & St Pancras International (149 m) | https://askethos.com | sources: [funding](https://tech.eu/2026/05/06/ai-consulting-startup-co-founded-by-deepmind-scientist-lands-22-75m-series-a/), [growth](https://tech.eu/2026/05/06/ai-consulting-startup-co-founded-by-deepmind-scientist-lands-22-75m-series-a/), [address](https://find-and-update.company-information.service.gov.uk/company/15769231), [presence](https://thenextweb.com/news/ethos-22-75m-series-a-a16z-ai-expert-matching) - **Fifth Dimension** (`fifth-dimension`): AI analyst for real estate and real asset investors that speeds up underwriting and reporting. AI (also Fintech) / Real asset investing AI | Fastest growing | Westminster W1D 2LG | founded 2023 | raised $40M+ | last round Series A, $26M, May 2026 (led by HV Capital) | Companies House 14629178 | incorporated 2023-01-31 | 12 staff in filed accounts (period to 2025-03-31) | SIC 62012 | licensed visa sponsor | London HQ | backed by HV Capital, AFG, Anthemis, Mercia Ventures, MMC Ventures, Prudence, Seedcamp, Speedinvest | near Oxford Circus (126 m) | https://fifthdimensionai.com | sources: [funding](https://www.fifthdimensionai.com/news/fifth-dimension-raises-series-a/), [growth](https://www.fifthdimensionai.com/news/fifth-dimension-raises-series-a/), [address](https://fifthdimensionai.com/privacy), [presence](https://fifthdimensionai.com/privacy) - **Flawless** (`flawless`): Generative AI tools for film and TV that sync dialogue and edit performances, used by major studios. AI / Generative AI For Film | Up and coming | Camden WC2H 9JQ | Companies House 12603251 | incorporated 2020-05-14 | SIC 74203 | licensed visa sponsor | London HQ | near Covent Garden (208 m) | https://flawlessai.com | sources: [growth](https://flawlessai.com/press/flawless-time-100-most-influential-companies-2025?hsLang=en), [address](https://find-and-update.company-information.service.gov.uk/company/12603251), [presence](https://flawlessai.com/careers) - **Fleek** (`fleek`): B2B marketplace and AI grading tools for wholesale secondhand clothing, linking suppliers with retailers in 100+ countries. AI / Secondhand Fashion | Fastest growing | Tower Hamlets E1 6LP | founded 2021 | raised $45M | last round Series B, $25M, Jul 2026 | Companies House 13275383 | incorporated 2021-03-18 | 13 staff in filed accounts (period to 2025-03-31) | SIC 62012 | hiring 8 in London | licensed visa sponsor | work model on-site (8 London job posts) | London HQ | Y Combinator W22 | on Tech Nation Future Fifty 2026 | backed by Burda Principal Investments, Andreessen Horowitz, eBay, FJ Labs, H14, HV Capital, Y Combinator | near Aldgate East (145 m) | https://www.joinfleek.com | sources: [funding](https://thenextweb.com/news/fleek-25m-series-b-secondhand-fashion-ai), [growth](https://thenextweb.com/news/fleek-25m-series-b-secondhand-fashion-ai), [address](https://find-and-update.company-information.service.gov.uk/company/13275383), [presence](https://www.joinfleek.com/careers) - **Focaldata** (`focaldata`): Focaldata runs AI-assisted survey and qualitative research for brands, agencies, charities and political clients across 130+ markets. AI / Market research | Up and coming | Tower Hamlets E1 6NF | founded 2017 | Companies House 10550795 | incorporated 2017-01-06 | 42 staff in filed accounts (period to 2026-01-31) | SIC 62012, 73200 | licensed visa sponsor | London HQ | on Tech Nation Upscale 2024 | near Shoreditch High Street (299 m) | https://www.focaldata.com | sources: [growth](https://www.focaldata.com/), [address](https://www.focaldata.com/), [presence](https://www.focaldata.com/) - **Foresight** (`foresight`): Foresight is a project delivery platform that tracks progress and forecasts risks on large construction and infrastructure projects. AI / Construction analytics | Fastest growing | Westminster W1W 6XH | founded 2018 | last round Series A, $25M, Mar 2026 | Companies House 11330700 | incorporated 2018-04-26 | 8 staff in filed accounts (period to 2024-09-28) | SIC 58290 | licensed visa sponsor | London HQ | backed by Macquarie Capital Venture Capital, Creandum, i2bf Global Ventures, ISAI Build, Somersault Ventures | near Great Portland Street (424 m) | https://www.foresight.works | sources: [funding](https://pulse2.com/foresight-25-million-raised-for-ai-infrastructure-project-delivery-platform-expansion), [growth](https://pulse2.com/foresight-25-million-raised-for-ai-infrastructure-project-delivery-platform-expansion), [address](https://foresight.works/contact), [presence](https://www.thesaasnews.com/news/foresight-raises-25-million-in-series-a/) - **Fractile** (`fractile`): Designs AI inference chips that run large models much faster and cheaper than today's GPUs. AI (also Deeptech) / AI inference chips | Well known | Camden EC1N 7RJ | founded 2022 | raised $235M | last round Series B, $220M, May 2026 | Companies House 14143636 | incorporated 2022-05-31 | 40 staff in filed accounts (period to 2025-12-31) | SIC 62090 | hiring 18 in London | licensed visa sponsor | work model hybrid (2 London job posts) | London HQ | backed by Accel, Factorial Funds, Founders Fund, 01A, 8VC, Buckley Ventures, Conviction, Felicis, Gigascale | near Chancery Lane (241 m) | https://fractile.ai | sources: [funding](https://fractile.ai/news/fractile-raises-220m-to-build-the-next-generation-of-inference-hardware), [growth](https://www.silicon.co.uk/cloud/ai/fractile-funding-ai-inference-631239), [address](https://jobs.ashbyhq.com/fractile/cf38699a-adb5-45bb-aeac-4594972df934), [presence](https://www.fractile.ai/) - **FYLD** (`fyld`): AI platform that turns frontline video into safety and risk insights for infrastructure and utility fieldwork. AI / Field Operations | Fastest growing | City of London EC4A 3TW | founded 2020 | last round Series B, $41M, Feb 2026 | Companies House 12481168 | incorporated 2020-02-25 | SIC 62012 | licensed visa sponsor | London HQ | on Deloitte UK Technology Fast 50 2025, #22; Tech Nation Future Fifty 2024 | backed by Energy Impact Partners, Partech | near Chancery Lane (373 m) | https://www.fyld.ai | sources: [funding](https://siliconangle.com/2026/02/17/ai-field-operations-startup-fyld-raises-41m-help-build-large-scale-infrastructure/), [growth](https://siliconangle.com/2026/02/17/ai-field-operations-startup-fyld-raises-41m-help-build-large-scale-infrastructure/), [address](https://www.fyld.ai/contact), [presence](https://www.fyld.ai/contact) - **Fyxer AI** (`fyxer-ai`): AI assistant that sorts your inbox, drafts email replies and takes meeting notes. AI / AI Email Assistant | Fastest growing | City of London WC2A 1QS | founded 2023 | raised $40M | last round Series B, $30M, Sep 2025 | Companies House 15189973 | incorporated 2023-10-05 | 3 staff in filed accounts (period to 2024-12-31) | SIC 62012 | hiring 4 in London | licensed visa sponsor | work model hybrid (4 London job posts) | London HQ | on Tech Nation Future Fifty 2026 | backed by Madrona, 20Growth, 20VC, Lakestar | near Chancery Lane (125 m) | https://www.fyxer.com | sources: [funding](https://startupintros.com/news/2025-03-01-fyxer-ai-series-a), [growth](https://landing.fyxer.com/blog/series-b-statement), [address](https://app.welcometothejungle.com/jobs/UKV9Pr2f/company), [presence](https://builtinlondon.uk/company/fyxer-ai) - **General Reasoning** (`general-reasoning`): General Reasoning is an AI research company training models for long-horizon reasoning and releasing tools such as OpenReward for agent training environments. AI / AI research lab | Up and coming | City of London EC2V 6DN | founded 2025 | raised $10.9M | last round Pre-seed, $10.9M, Jul 2025 | Companies House 16515063 | incorporated 2025-06-12 | SIC 58290, 62090, 72190 | licensed visa sponsor | London HQ | near Mansion House (231 m) | https://gr.inc | sources: [funding](https://nordic9.com/news/general-reasoning-raised-109-million-pre-seed/), [growth](https://gr.inc/careers), [address](https://find-and-update.company-information.service.gov.uk/company/16515063), [presence](https://gr.inc/careers) - **Genie AI** (`genie-ai`): AI legal assistant that drafts, reviews and negotiates contracts for businesses and in-house teams. AI / Legal AI | Up and coming | Southwark SE1 6FP | founded 2017 | last round Series A, $17.8M, Jun 2023 | Companies House 11080520 | incorporated 2017-11-23 | 24 staff in filed accounts (period to 2025-07-31) | SIC 62012 | licensed visa sponsor | London HQ | backed by GV, Khosla Ventures, Connect Ventures, Entrepreneur First | near Elephant & Castle (288 m) | https://www.genieai.co | sources: [funding](https://www.genieai.co/about-us), [growth](https://www.genieai.co/about-us), [address](https://www.genieai.co/privacy-policy), [presence](https://www.linkedin.com/company/genie-ai) - **Geordie AI** (`geordie-ai`): Security and governance platform that lets enterprises discover, monitor and control their AI agents. AI / AI Agent Security | Fastest growing | Westminster W1W 7LT | founded 2025 | raised $36.5M | last round Series A, $30M, May 2026 | Companies House 16385054 | incorporated 2025-04-14 | 9 staff in filed accounts (period to 2025-12-31) | SIC 62012 | hiring 5 in London | licensed visa sponsor | work model hybrid (5 London job posts) | London HQ | backed by Balderton Capital, Crosspoint Capital, General Catalyst, Ten Eleven Ventures | near Oxford Circus (362 m) | https://geordie.ai | sources: [funding](https://www.fortune.com/2026/05/28/geordie-security-governance-ai-agents/), [growth](https://www.fortune.com/2026/05/28/geordie-security-governance-ai-agents/), [address](https://geordie.ai/privacy), [presence](https://zeltser.com/media/rsac-2026-sandbox/geordie-ai) - **geoSurge** (`geosurge`): Shows brands how they appear in ChatGPT, Claude and Gemini answers and how to improve it. AI / AI Search Visibility | Up and coming | Westminster W1W 5PF | founded 2025 | raised $12M | last round Seed, $12M, Jul 2026 | Companies House 16249592 | incorporated 2025-02-13 | 4 staff in filed accounts (period to 2025-12-31) | SIC 62012 | licensed visa sponsor | London HQ | GitHub geosurge-ai | backed by AlbionVC | near Great Portland Street (244 m) | https://geosurge.ai | sources: [funding](https://www.pymnts.com/news/investment-tracker/2026/geosurge-raises-12-million-to-help-brands-secure-ai-visibility/), [growth](https://geosurge.ai/about), [address](https://geosurge.ai/privacy-policy), [presence](https://geosurge.ai/privacy-policy) - **Gigaton (formerly Carbon Re)** (`gigaton-formerly-carbon-re`): Self-learning AI control software that cuts fuel use and emissions in cement, glass, steel and mining plants. AI (also Climate) / Industrial AI control | Up and coming | Southwark SE1 0HS | founded 2020 | Companies House 12942593 | incorporated 2020-10-12 | 23 staff in filed accounts (period to 2025-03-31) | SIC 62012 | hiring 4 in London | licensed visa sponsor | work model hybrid (4 London job posts) | London HQ | near Borough (482 m) | https://gigaton.co | sources: [growth](https://gigaton.co/news), [address](https://gigaton.co/), [presence](https://www.linkedin.com/company/carbonre) - **Gizmo** (`gizmo`): AI study app that turns learning material into flashcards and quizzes for students. AI / AI education | Fastest growing | Hackney EC2A 4RQ | last round Series A, $22M, Apr 2026 | Companies House 13489213 | incorporated 2021-07-01 | 7 staff in filed accounts (period to 2025-03-31) | SIC 85590 | London HQ | backed by NFX, Shine Capital, Ada Ventures, GSV, Seek Investments | near Shoreditch High Street (457 m) | https://gizmo.ai | sources: [funding](https://tech.eu/2026/04/15/gizmo-secures-22m-series-a-to-advance-ai-powered-education/), [growth](https://tech.eu/2026/04/15/gizmo-secures-22m-series-a-to-advance-ai-powered-education/), [address](https://gizmo.ai/privacy), [presence](https://gizmo.ai/privacy) - **GoodFit** (`goodfit`): Go-to-market data platform that helps sales and marketing teams find, rank and target the right accounts. AI / GTM data | Fastest growing | Hackney EC2A 4NE | founded 2020 | raised $13M | last round Series A, $13M, Sep 2025 | Companies House 12583146 | incorporated 2020-05-04 | 7 staff in filed accounts (period to 2025-03-31) | SIC 62020 | licensed visa sponsor | London HQ | backed by Notion Capital, Andrena Ventures, Common Magic, Inovia Capital, Robin Capital, Salica Investments | near Old Street (321 m) | https://www.goodfit.io | sources: [funding](https://siliconcanals.com/goodfit-lands-11m/), [growth](https://www.goodfit.io/careers/), [address](https://www.goodfit.io/legal/data-processing-agreement-goodfit/), [presence](https://www.goodfit.io/careers/) - **Google DeepMind** (`google-deepmind`): Alphabet's main AI research lab, behind Gemini and AlphaFold, founded and headquartered in London. AI / Frontier model lab | Well known | Camden N1C 4BU | founded 2010 | Companies House 07386350 | incorporated 2010-09-23 | SIC 72190 | London HQ | GitHub google-deepmind | backed by Founders Fund, Horizons Ventures | near King's Cross & St Pancras International (181 m) | https://deepmind.google | sources: [growth](https://en.wikipedia.org/wiki/Google_DeepMind), [address](https://www.buildington.co.uk/buildings/6212/england/london-n1c/6-king-s-boulevard/platform-37), [presence](https://en.wikipedia.org/wiki/Google_DeepMind) - **Gradient Labs** (`gradient-labs`): AI agents that handle customer support, compliance and back-office operations for banks and fintechs. AI (also Fintech) / Fintech AI Agents | Fastest growing | Haringey N6 5TQ | founded 2023 | raised $29.8M | last round Series A extension, $26M, Jun 2026 | Companies House 14864752 | incorporated 2023-05-12 | 21 staff in filed accounts (period to 2026-01-31) | SIC 62012 | hiring 5 in London | licensed visa sponsor | work model hybrid (5 London job posts) | London HQ | backed by CommerzVentures, LocalGlobe, Octopus Ventures, Redpoint Ventures, Exceptional Capital, Liquid 2 Ventures, Puzzle Ventures | near Highgate (390 m) | https://gradient-labs.ai | sources: [funding](https://vestbee.com/blog/articles/gradient-labs-raises-13-m), [growth](https://pulse2.com/gradient-labs-raises-26-million-to-build-specialist-ai-agents-for-financial-services/), [address](https://find-and-update.company-information.service.gov.uk/company/14864752), [presence](https://jobs.ashbyhq.com/gradient-labs/b2f42c6a-006a-4328-a205-6d0da36298ea) - **Granola** (`granola`): AI notepad that writes up your meeting notes without adding a bot to the call. AI / AI meeting notes | Well known | Tower Hamlets E1 5JL | founded 2023 | raised $192M | last round Series C, $125M, Mar 2026 | Companies House 14703652 | incorporated 2023-03-03 | 8 staff in filed accounts (period to 2025-03-31) | SIC 62012 | hiring 15 in London | licensed visa sponsor | work model on-site (6 London job posts) | London HQ | on Tech Nation Future Fifty 2025 | backed by Index Ventures, Kleiner Perkins, Lightspeed Venture Partners, NFDG, Spark Capital | near Shoreditch High Street (473 m) | https://www.granola.ai | sources: [funding](https://stockanalysis.com/private/granola/), [growth](https://www.granola.ai/blog/series-c), [address](https://www.linkedin.com/company/granola-labs/), [presence](https://sacra.com/c/granola/) - **Helical** (`helical`): Virtual AI lab that post-trains biology foundation models on pharma companies' own data for target and biomarker discovery. AI / Drug discovery AI | Up and coming | Islington EC2A 4NJ | last round Seed, $10M, Apr 2026 | Companies House 17274734 | incorporated 2026-06-17 | SIC 62012, 62090, 72190 | hiring 4 in London | work model mixed (4 London job posts) | London HQ | GitHub helicalAI | backed by Redalpine, BoxGroup, Frst, Gradient | near Old Street (301 m) | https://helical.bio | sources: [funding](https://thenextweb.com/news/helical-10m-seed-bio-foundation-models-pharma-ai), [growth](https://thenextweb.com/news/helical-10m-seed-bio-foundation-models-pharma-ai), [address](https://find-and-update.company-information.service.gov.uk/company/17274734), [presence](https://thenextweb.com/news/helical-10m-seed-bio-foundation-models-pharma-ai) - **HelmGuard** (`helmguard`): HelmGuard uses AI agents to run security and compliance assessments, including third-party risk reviews and AI governance. AI / Security compliance | Up and coming | Camden N1C 4AG | last round Seed, $7.3M, Sep 2026 | Companies House 16028159 | incorporated 2024-10-18 | 2 staff in filed accounts (period to 2025-10-31) | SIC 62090 | licensed visa sponsor | London HQ | backed by Infinity Ventures, Entrepreneur First, FinTech Collective, Frontline, Stage 2 Capital | near King's Cross & St Pancras International (225 m) | https://helmguard.ai | sources: [funding](https://raising.fi/news/helmguard-seed-september-2026), [growth](https://raising.fi/news/helmguard-seed-september-2026), [address](https://helmguard.ai), [presence](https://raising.fi/news/helmguard-seed-september-2026) - **Holistic AI** (`holistic-ai`): Platform that helps enterprises inventory, audit and monitor their AI systems for risk and regulatory compliance. AI / AI Governance | Up and coming | Camden WC1B 3HH | founded 2020 | Companies House 12962678 | incorporated 2020-10-20 | 25 staff in filed accounts (period to 2025-10-31) | SIC 62020, 62090 | licensed visa sponsor | London HQ | GitHub holistic-ai | near Goodge Street (278 m) | https://www.holisticai.com | sources: [growth](https://www.holisticai.com/careers), [address](https://www.holisticai.com/about), [presence](https://www.cbinsights.com/company/holistic-ai) - **Hook** (`hook`): AI platform for B2B software companies that predicts customer churn and expansion and automates customer success workflows. AI / Customer success | Up and coming | City of London EC2N 2JA | founded 2020 | last round Series A, $11M, Dec 2023 | Companies House 12362866 | incorporated 2019-12-13 | 46 staff in filed accounts (period to 2026-01-31) | SIC 62012 | hiring 4 in London | licensed visa sponsor | London HQ | on LinkedIn Top Startups UK 2025, #9; LinkedIn Top Startups UK 2024, #17 | backed by Balderton Capital, Dig Ventures, Lightspeed Venture Partners, LocalGlobe | near Liverpool Street (261 m) | https://hook.co/ | sources: [funding](https://dealroom.co/companies/hook/), [growth](https://dealroom.co/companies/hook/), [address](https://hook.co/), [presence](https://hook.co/) - **Humanoid** (`humanoid`): Builds industrial humanoid robots for factories and warehouses, headquartered in London. AI (also Deeptech) / Humanoid robotics | Well known | Camden NW1 3BF | founded 2024 | last round Series A, $152M, Jul 2026 | Companies House 15702488 | incorporated 2024-05-03 | 79 staff in filed accounts (period to 2025-12-31) | SIC 62012, 71121 | hiring 74 in London | licensed visa sponsor | work model on-site (74 London job posts) | London HQ | on LinkedIn Top Startups UK 2025, #4 | backed by Prime Movers Lab, Aglaé Ventures, Bosch, Fubon Financial, Schaeffler | near Great Portland Street (179 m) | https://thehumanoid.ai | sources: [funding](https://thehumanoid.ai), [growth](https://thehumanoid.ai), [address](https://jobs.ashbyhq.com/humanoid/9ed64980-46e9-44eb-83f7-fded700be4a3), [presence](https://thehumanoid.ai/humanoid-leads-uk-innovation-with-nvidia/) - **Huzzle** (`huzzle`): AI recruiting platform whose AI recruiter sources, screens and interviews global talent for companies. AI / AI Recruiting | Fastest growing | Westminster W1W 7LT | founded 2021 | raised £3.8M (~$4.8M) | Companies House 13245967 | incorporated 2021-03-04 | 3 staff in filed accounts (period to 2025-03-31) | SIC 62012 | London HQ | on Sifted 100 UK & Ireland 2026, #7 | backed by 10x Founders | near Oxford Circus (362 m) | https://www.huzzle.com | sources: [funding](https://www.datocms-assets.com/60124/1774006698-sifted-100-uk-ireland-2026.pdf), [growth](https://www.datocms-assets.com/60124/1774006698-sifted-100-uk-ireland-2026.pdf), [address](https://find-and-update.company-information.service.gov.uk/company/13245967), [presence](https://www.huzzle.com/terms-of-service) - **HyBird** (`hybird`): Builds AI digital twin software for industrial sites like cement, energy and nuclear plants to run maintenance and safety. AI / Industrial Digital Twins | Up and coming | Westminster W1W 5PF | founded 2015 | Companies House 09863415 | incorporated 2015-11-09 | SIC 62090 | licensed visa sponsor | on Deloitte UK Technology Fast 50 2025, #20 | near Great Portland Street (244 m) | https://hybird.ai | sources: [growth](https://www.fast50.co.uk/fast50/winners/2025/), [address](https://hybird.ai/contact) - **hyperexponential** (`hyperexponential`): Pricing and underwriting platform for commercial insurers, now adding AI agents that process broker submissions. AI (also Fintech) / Insurance underwriting AI | Fastest growing | Southwark SE1 1DN | founded 2017 | raised $91M | last round Series B, $73M, Jan 2024 | Companies House 11044276 | incorporated 2017-11-02 | SIC 62012 | licensed visa sponsor | London HQ | backed by Battery Ventures, Highland Europe, Andreessen Horowitz | near Borough (474 m) | https://www.hyperexponential.com | sources: [funding](https://techcrunch.com/2024/01/11/hyperexponential-a16z-insurance), [growth](https://builtinlondon.uk/company/hyperexponential/jobs), [address](https://www.hyperexponential.com/terms-and-conditions), [presence](https://techcrunch.com/2021/06/30/london-based-insurtech-hyperexponential-closes-18m-round-led-by-highland-europe) - **Inherent** (`inherent`): AI lab building AI scientists that work with researchers to speed up scientific discovery. AI / AI For Science | Fastest growing | Camden N1C 4AG | founded 2026 | raised $50M | last round Seed, $50M, May 2026 | Companies House 16968849 | incorporated 2026-01-16 | SIC 62012, 72190 | hiring 5 in London | licensed visa sponsor | work model on-site (5 London job posts) | London HQ | backed by Index Ventures, Radical Ventures | near King's Cross & St Pancras International (225 m) | https://inherentlabs.ai | sources: [funding](https://tech.eu/2026/05/29/london-based-ai-lab-inherent-emerges-from-stealth-with-50m-raise/), [growth](https://tech.eu/2026/05/29/london-based-ai-lab-inherent-emerges-from-stealth-with-50m-raise/), [address](https://inherentlabs.ai/privacy), [presence](https://jobs.ashbyhq.com/inherent) - **Intropy** (`intropy`): AI operating system for spare parts distributors covering demand forecasting, pricing and obsolescence decisions. AI / Parts supply chain AI | Up and coming | Tower Hamlets E14 5RE | founded 2024 | raised $11M | last round Seed, $11M, 2026 (led by Felix Capital) | Companies House 15342920 | incorporated 2023-12-11 | 5 staff in filed accounts (period to 2025-12-31) | SIC 62012 | licensed visa sponsor | London HQ | backed by Felix Capital, firstminute capital, General Catalyst, Quiet Capital | near Canary Wharf (291 m) | https://intropy.ai | sources: [funding](https://businesscloud.co.uk/news/intropy-eyes-new-york-office-after-11m-raise/), [growth](https://intropy.ai/news-seed-funding), [address](https://intropy.ai/privacy-policy), [presence](https://tech.eu/2026/07/30/ai-for-spare-parts-startup-intropy-raises-11m/) - **Isomorphic Labs** (`isomorphic-labs`): Alphabet spinout led by Demis Hassabis using AI to design new drugs. AI (also Health) / AI drug discovery | Well known | Camden N1C 4DN | founded 2021 | raised $2.7B | last round Series B, $2.1B, May 2026 | Companies House 13223825 | incorporated 2021-02-24 | SIC 70100 | hiring 15 in London | licensed visa sponsor | London HQ | backed by Thrive Capital, Alphabet, CapitalG, GV, MGX, Temasek, UK Sovereign AI Fund | near King's Cross & St Pancras International (638 m) | https://www.isomorphiclabs.com | sources: [funding](https://www.isomorphiclabs.com/articles/isomorphic-labs-announces-series-b-investment-round), [growth](https://www.isomorphiclabs.com/articles/isomorphic-labs-announces-series-b-investment-round), [address](https://app.welcometothejungle.com/companies/Isomorphic-Labs), [presence](https://en.wikipedia.org/wiki/Isomorphic_Labs) - **Jack & Jill** (`jack-jill`): Two AI agents: Jack coaches job seekers, Jill recruits for companies, and they match each other. AI / AI recruiting agents | Fastest growing | Hackney E2 8JF | founded 2025 | raised $60M | last round Series A, $40M, Sep 2026 | Companies House 16324763 | incorporated 2025-03-18 | SIC 78109 | hiring 7 in London | licensed visa sponsor | work model on-site (6 London job posts) | London HQ | Antler | backed by Air Street Capital, Creandum, Entrepreneur First, Madrona | near Hoxton (150 m) | https://jackandjill.ai | sources: [funding](https://press.airstreet.com/p/jack-and-jill-series-a), [growth](https://press.airstreet.com/p/jack-and-jill-series-a), [address](https://jobs.ashbyhq.com/jack-jill-external-ats/eede08e2-4dd0-48f9-8558-6ad8b98664d5), [presence](https://www.jackandjill.ai/privacy) - **Jacquard** (`jacquard`): AI agents that write, check and optimise marketing copy for email, SMS, push and paid social (formerly Phrasee). AI / Marketing content | Up and coming | Islington EC1M 4JN | founded 2015 | last round Further funding led by Capital D, undisclosed, Jan 2024 | Companies House 09453268 | incorporated 2015-02-23 | 60 staff in filed accounts (period to 2025-02-28) | SIC 63990 | licensed visa sponsor | London HQ | backed by Capital D, Keyhaven Capital, Morgan Stanley Expansion Capital | near Barbican (297 m) | https://www.jacquard.com | sources: [funding](https://martechseries.com/uncategorized/personalised-content-at-scale-phrasee-secures-further-funding-to-accelerate-product-roadmap-and-undertake-rebrand-while-announcing-new-leadership-appointments/), [growth](https://www.jacquard.com/), [address](https://www.jacquard.com/), [presence](https://www.jacquard.com/) - **Juro** (`juro`): AI-native contract management platform for drafting, agreeing and managing contracts end to end. AI / Legal AI | Up and coming | Islington EC1R 0DS | founded 2015 | raised $31.5M | last round Series B, $23M, Jan 2022 | Companies House 09684844 | incorporated 2015-07-14 | SIC 62012 | licensed visa sponsor | London HQ | GitHub juro-privacy | on Sifted 100 UK & Ireland 2024, #51; Tech Nation Future Fifty 2024 | backed by Eight Roads, Point Nine, Seedcamp, Union Square Ventures | near Farringdon (442 m) | https://juro.com | sources: [funding](https://en.wikipedia.org/wiki/Juro_(company)), [growth](https://en.wikipedia.org/wiki/Juro_(company)), [address](https://juro.com/privacy), [presence](https://en.wikipedia.org/wiki/Juro_(company)) - **Kaedim** (`kaedim`): AI platform that turns sketches, photos and briefs into production-ready 3D assets for games, product design and e-commerce. AI / Generative 3D | Up and coming | Camden N1C 4EW | founded 2020 | raised $15.8M | last round Series A, $15M, Mar 2024 | Companies House 12452065 | incorporated 2020-02-10 | 4 staff in filed accounts (period to 2025-12-31) | SIC 62090 | licensed visa sponsor | London HQ | backed by Andreessen Horowitz, Pioneer Fund | near King's Cross & St Pancras International (699 m) | https://www.kaedim3d.com | sources: [funding](https://app.welcometothejungle.com/companies/Kaedim), [growth](https://www.pocketgamer.biz/kaedim-secures-15-million-investment-for-ai-powered-3d-asset-creation/), [address](https://find-and-update.company-information.service.gov.uk/company/12452065), [presence](https://app.welcometothejungle.com/companies/Kaedim) - **Kernel** (`kernel`): AI-native company and account data platform that resolves corporate entities and hierarchies for enterprise RevOps teams. AI / Revenue Data | Up and coming | Southwark SE1 1JA | founded 2023 | raised $14M | last round Series A, $9M, Jan 2026 | Companies House 15117085 | incorporated 2023-09-05 | 2 staff in filed accounts (period to 2025-09-30) | SIC 62020 | hiring 11 in London | work model on-site (11 London job posts) | London HQ | on Sifted 100 UK & Ireland 2026, #46 | backed by Kinnevik, Moonfire Ventures | near Borough (89 m) | https://kernel.ai | sources: [funding](https://www.kernel.ai/series-a-announcement), [growth](https://www.datocms-assets.com/60124/1774006698-sifted-100-uk-ireland-2026.pdf), [address](https://www.kernel.ai/privacy-policy), [presence](https://jobs.ashbyhq.com/kernel/c86e62e8-d6bd-4e87-80fe-d4b477315508) - **Kohort** (`kohort`): AI forecasting and user acquisition agents that help mobile game studios grow profitably. AI / Mobile Game UA | Up and coming | Hackney N1 7GU | founded 2018 | raised $7M+ | last round Series A, $7M, May 2026 | Companies House 11728021 | incorporated 2018-12-14 | 5 staff in filed accounts (period to 2025-12-31) | SIC 62012 | licensed visa sponsor | London HQ | backed by The Raine Group | near Old Street (645 m) | https://kohort.io | sources: [funding](https://www.pocketgamer.biz/exclusive-kohort-raises-7m-to-build-ua-ai-agents-for-mobile/), [growth](https://www.pocketgamer.biz/exclusive-kohort-raises-7m-to-build-ua-ai-agents-for-mobile/), [address](https://find-and-update.company-information.service.gov.uk/company/11728021), [presence](https://kohort.io/) - **LabGenius** (`labgenius`): Uses machine learning and robotic labs to design multispecific antibody drugs for solid tumours. AI (also Health) / AI Drug Discovery | Up and coming | Southwark SE16 4DG | founded 2012 | raised £58M (~$73.7M) | last round Series B, £35M, May 2024 | Companies House 08183505 | incorporated 2012-08-17 | 58 staff in filed accounts (period to 2025-12-31) | SIC 72110 | licensed visa sponsor | London HQ | backed by M Ventures, Atomico, Kindred Capital, LG Corp, Lux Capital, Obvious Ventures, Octopus Ventures | near Bermondsey (445 m) | https://labgeniustx.com | sources: [funding](https://biopharmatrend.com/post/809-labgenius-secures-35-million-to-enhance-ml-driven-antibody-discovery), [growth](https://www.cooley.com/news/coverage/2026/2026-06-18-labgenius-therapeutics-and-lg-chem-enter-a-research-collaboration-option-and-license-agreement), [address](https://labgeniustx.com), [presence](https://builtinlondon.uk/company/labgenius) - **Latent Labs** (`latent-labs`): Generative AI lab designing new proteins and antibodies, founded by AlphaFold co-developer Simon Kohl. AI (also Health) / Generative Protein Design | Fastest growing | Islington EC1Y 8AF | founded 2023 | raised $50M | last round Series A, $40M, Feb 2025 | Companies House 14964224 | incorporated 2023-06-27 | 10 staff in filed accounts (period to 2025-12-31) | SIC 72190 | licensed visa sponsor | London HQ | backed by Radical Ventures, Sofinnova Partners, 8VC, Flying Fish, Isomer Capital, Kindred Capital, Pillar VC | near Old Street (103 m) | https://www.latentlabs.com | sources: [funding](https://www.pharmexec.com/view/latent-labs-launches-publicly-50-million-funding-artificial-intelligence-powered-programmable-biology), [growth](https://tech.eu/2025/02/13/ai-pioneer-dr-simon-kohls-latent-labs-raises-50m/), [address](https://www.latentlabs.com), [presence](https://techcrunch.com/2025/02/12/founded-by-deepmind-alumnus-latent-labs-launches-with-50m-to-make-biology-programmable) - **Lawhive** (`lawhive`): AI-powered legal platform and law firm giving consumers and small businesses affordable access to vetted lawyers. AI / AI Law Firm | Fastest growing | Islington EC1V 8AB | founded 2021 | raised $114M | last round Series B, $60M, Feb 2026 | Companies House 13800100 | incorporated 2021-12-14 | 28 staff in filed accounts (period to 2024-12-31) | SIC 62090 | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2026, #6; Tech Nation Future Fifty 2025 | backed by Balderton Capital, GV, Jigsaw Ventures, TQ Ventures | near Barbican (572 m) | https://lawhive.co.uk | sources: [funding](https://www.cbinsights.com/company/lawhive), [growth](https://uk.finance.yahoo.com/news/exclusive-lawhive-startup-using-ai-080000322.html), [address](https://www.sra.org.uk/consumers/register/organisation/?sraNumber=8003766), [presence](https://builtinlondon.uk/company/lawhive) - **Leah** (`leah`): Leah, formerly ContractPodAi, sells an agentic AI platform for legal and enterprise contract work. AI / Legal AI | Up and coming | Westminster W2 6BD | founded 2012 | raised $170M | last round Series C, $115M, Sep 2021 | Companies House SC425646 | incorporated 2012-06-06 | SIC 82990 | licensed visa sponsor | London HQ | backed by SoftBank Vision Fund, Eagle Proprietary Investments, Insight Partners | near Paddington (451 m) | https://leahai.com | sources: [funding](https://news.crunchbase.com/briefing/briefing-9-30-21/), [growth](https://leahai.com/press-releases/contractpodai-115m-funding-softbank-vision-fund-2), [address](https://leahai.com/contact), [presence](https://leahai.com/press-releases/contractpodai-becomes-leah) - **Lightdash** (`lightdash`): Open-source business intelligence tool built on dbt, with an AI analyst that answers data questions. AI / Business Intelligence | Fastest growing | Westminster WC2A 2JR | founded 2020 | raised $19.4M | last round Series A, $11M, Oct 2024 | Companies House 12774445 | incorporated 2020-07-28 | 8 staff in filed accounts (period to 2025-12-31) | SIC 62012, 62020, 62090 | licensed visa sponsor | London HQ | Y Combinator S20 | backed by Accel, Operator Partners, Shopify Ventures, Y Combinator | near Temple (420 m) | https://www.lightdash.com | sources: [funding](https://www.lightdash.com/about), [growth](https://finance.yahoo.com/news/open-source-bi-platform-lightdash-080000402.html), [address](https://find-and-update.company-information.service.gov.uk/company/12774445), [presence](https://www.lightdash.com/about) - **Luminance** (`luminance`): AI platform that reads, negotiates and manages contracts for in-house legal teams. AI / Legal AI | Fastest growing | Westminster W1T 3BP | founded 2015 | raised $165M | last round Series C, $75M, Feb 2025 | Companies House 09857705 | incorporated 2015-11-05 | SIC 62012 | hiring 14 in London | licensed visa sponsor | work model hybrid (14 London job posts) | London HQ | on Forbes AI 50 2025 | backed by Point72, Talis Capital, Forestay Capital, Invoke Capital, March Capital, National Grid Partners, RPS Ventures, Schroders Capital, Slaughter and May | near Goodge Street (294 m) | https://www.luminance.com | sources: [funding](https://sacra.com/c/luminance/), [growth](https://siliconangle.com/2025/02/18/british-legaltech-startup-luminance-raises-75m-contract-ai-assistant/), [address](https://www.luminance.com/contact), [presence](https://www.luminance.com/contact) - **Magentic** (`magentic`): Magentic builds AI agents that handle procurement work for manufacturers, from supplier selection and negotiation to orders and invoices. AI / Procurement agents | Up and coming | Islington N1 9BG | last round Series A, $18M, Sep 2026 | Companies House 16015377 | incorporated 2024-10-14 | 6 staff in filed accounts (period to 2025-12-31) | SIC 64209 | hiring 10 in London | licensed visa sponsor | work model hybrid (10 London job posts) | London HQ | backed by Felicis, Sequoia Capital, The Westly Group | near King's Cross & St Pancras International (302 m) | https://www.magentic.com | sources: [funding](https://tech.eu/2026/09/17/magentic-raises-18m-to-automate-industrial-operations-with-ai-agents/), [growth](https://tech.eu/2026/09/17/magentic-raises-18m-to-automate-industrial-operations-with-ai-agents/), [address](https://www.magentic.com), [presence](https://www.magentic.com) - **MAGIC AI** (`magic-ai`): Makes an AI fitness mirror that uses computer vision to track form, count reps and coach workouts at home. AI / Connected Fitness | Up and coming | Westminster WC2B 5SQ | founded 2021 | raised $20M | last round Series B, £8M, Sep 2026 | Companies House 13508558 | incorporated 2021-07-13 | 12 staff in filed accounts (period to 2025-12-31) | SIC 62090 | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2026, #13; Tech Nation Upscale 2025; LinkedIn Top Startups UK 2025, #8 | backed by Beringea, IW Capital | near Covent Garden (264 m) | https://www.magic.fit | sources: [funding](https://www.beringea.co.uk/news/in-the-news/beringea-leads-magic-ai-s-gbp8m-series-b-to-scale-ai-fitness-mirror-across-the-us), [growth](https://www.linkedin.com/pulse/linkedin-top-startups-2025-20-uk-companies-rise-linkedin-news-uk-vczpc), [address](https://www.beringea.co.uk/news/in-the-news/beringea-leads-magic-ai-s-gbp8m-series-b-to-scale-ai-fitness-mirror-across-the-us), [presence](https://www.magic.fit) - **Mantic** (`mantic`): AI system that forecasts real-world events to help organisations make better decisions. AI / AI forecasting | Fastest growing | Kensington and Chelsea W10 5BN | founded 2024 | raised $29M | last round Seed, $25M, Sep 2026 (led by Radical Ventures) | Companies House 15832845 | incorporated 2024-07-11 | 4 staff in filed accounts (period to 2025-07-31) | SIC 62020, 72190 | licensed visa sponsor | London HQ | backed by Episode 1 Ventures, Radical Ventures, Balderton Capital, DRW, FT Ventures, M12, Thinking Machines | near Westbourne Park (733 m) | https://mantic.com | sources: [funding](https://blog.mantic.com/p/mantic-raises-25mn-to-scale-superhuman), [growth](https://tech.eu/2025/08/27/mantic-which-claims-to-forecast-world-events-emerges-from-stealth/), [address](https://mantic.com/), [presence](https://mantic.com/) - **Marker** (`marker`): AI-assisted writing tool that helps writers develop their ideas and work from first idea to final draft, built to write with the writer rather than for them. AI / AI writing | Up and coming | Hackney EC2A 3DH | founded 2025 | raised $13M | last round Seed, $13M, Jul 2026 | Companies House 16291760 | incorporated 2025-03-04 | SIC 62012 | London HQ | backed by Index Ventures, LocalGlobe | near Old Street (470 m) | https://marker.page | sources: [funding](https://tech.eu/2026/07/09/ai-writing-startup-co-founded-by-deepmind-creative-lead-raises-13m-seed-investment/), [growth](https://tech.eu/2026/07/09/ai-writing-startup-co-founded-by-deepmind-creative-lead-raises-13m-seed-investment/), [address](https://find-and-update.company-information.service.gov.uk/company/16291760), [presence](https://tech.eu/2026/07/09/ai-writing-startup-co-founded-by-deepmind-creative-lead-raises-13m-seed-investment/) - **Matta** (`matta`): Matta sells camera and sensor based AI agents and on-site hardware that detect defects, measure and trace parts on factory lines. AI / Industrial AI | Up and coming | Hackney N1 6AH | founded 2021 | raised $14M | last round Seed, $14M, Dec 2025 | Companies House 13452862 | 4 staff in filed accounts (period to 2024-10-31) | licensed visa sponsor | London HQ | backed by Giant Ventures, Lakestar, Boost VC, InMotion Ventures, RedSeed VC, Unruly Capital | near Old Street (303 m) | https://matta.ai | sources: [funding](https://matta.ai/news-updates/14m-to-build-the-first-sentient-factories), [growth](https://matta.ai/news-updates/14m-to-build-the-first-sentient-factories), [address](https://matta.ai), [presence](https://matta.ai/news-updates/14m-to-build-the-first-sentient-factories) - **Maze** (`maze`): AI agents that investigate code and cloud vulnerabilities and flag only the ones that matter. AI / AI Cloud Security | Fastest growing | City of London EC4A 3TW | founded 2023 | raised $31M | last round Series A, $25M, Jun 2025 | Companies House 15203461 | incorporated 2023-10-11 | SIC 62012 | licensed visa sponsor | London HQ | backed by Cherry Ventures, Tapestry VC, Theory Ventures | near Chancery Lane (373 m) | https://mazehq.com | sources: [funding](https://www.securityweek.com/maze-banks-25m-to-tackle-cloud-security-with-ai-agents/), [growth](https://www.securityweek.com/maze-banks-25m-to-tackle-cloud-security-with-ai-agents/), [address](https://mazehq.com), [presence](https://mazehq.com) - **mea** (`mea`): Agentic AI platform that automates insurance operations across underwriting, claims, finance and broking. AI (also Fintech) / Insurance AI | Fastest growing | Islington EC1V 2NX | raised €42M (~$45.4M) | last round Growth round, €42M, Feb 2026 | Companies House 13243122 | incorporated 2021-03-03 | 7 staff in filed accounts (period to 2024-12-31) | SIC 62090 | London office, HQ elsewhere | backed by Scottish Equity Partners | near Old Street (146 m) | https://meaplatform.com | sources: [funding](https://funding.tech.eu/deals/BED3E2B5-4401-465E-AC25-4AE935C536EC), [growth](https://funding.tech.eu/deals/BED3E2B5-4401-465E-AC25-4AE935C536EC), [address](https://find-and-update.company-information.service.gov.uk/company/13243122), [presence](https://www.meaplatform.com/contact/) - **Medly** (`medly`): AI tutor for GCSE and A-Level exam prep with adaptive practice questions, essay marking and mock exams. AI / AI Tutoring | Up and coming | Westminster W1W 5PF | founded 2023 | last round Seed, $8M, Aug 2026 | Companies House 15110302 | incorporated 2023-09-01 | 6 staff in filed accounts (period to 2025-09-30) | SIC 85600 | licensed visa sponsor | London HQ | backed by Felix Capital, Ada Ventures, Eka Ventures | near Great Portland Street (244 m) | https://www.medlyai.com | sources: [growth](https://www.uktech.news/ai/ai-tutor-startup-medly-lands-6m-to-scale-exam-prep-platform-20260819), [address](https://find-and-update.company-information.service.gov.uk/company/15110302), [presence](https://www.medlyai.com) - **Metaview** (`metaview`): AI recruiting platform with agents for sourcing, screening, interview notes and hiring reports. AI / Recruiting AI | Fastest growing | Tower Hamlets E1 6BT | founded 2018 | raised $110M | last round Series C, $60M, Sep 2026 | Companies House 11313397 | incorporated 2018-04-17 | 9 staff in filed accounts (period to 2025-04-30) | SIC 63120 | hiring 14 in London | licensed visa sponsor | work model on-site (14 London job posts) | London HQ | on Tech Nation Future Fifty 2025 | backed by Insight Partners, Garuda Ventures, GV, Intrepid Growth Partners, Plural, Seedcamp, Vertex Ventures US | near Shoreditch High Street (262 m) | https://www.metaview.ai | sources: [funding](https://www.metaview.ai/resources/blog/metaview-raised-an-additional-60m-to-lead-the-shift-to-agentic-recruiting), [growth](https://www.metaview.ai/resources/blog/metaview-raised-an-additional-60m-to-lead-the-shift-to-agentic-recruiting), [address](https://www.metaview.ai/privacy-policy), [presence](https://www.metaview.ai/privacy-policy) - **Meticulous** (`meticulous`): Meticulous records how an app is used during development and uses AI to generate and maintain end-to-end tests. AI / Software testing | Up and coming | Islington EC1V 9DD | founded 2021 | last round Series A, $15M, Jul 2026 | Companies House 14177185 | incorporated 2022-06-16 | 5 staff in filed accounts (period to 2024-12-31) | SIC 82990 | hiring 5 in London | licensed visa sponsor | work model on-site (5 London job posts) | London HQ | GitHub alwaysmeticulous | Y Combinator S21 | backed by Chemistry, Menlo Ventures | near Old Street (211 m) | https://www.meticulous.ai | sources: [funding](https://raising.fi/news/meticulous-series-a-july-2026), [growth](https://fundraiseinsider.com/blog/meticulous-raises-15m-series-a-to-test-ai-code/), [address](https://www.meticulous.ai), [presence](https://raising.fi/news/meticulous-series-a-july-2026) - **Mimica** (`mimica`): Task mining platform that records how enterprise staff work and maps processes for AI agents and automation. AI / Process Intelligence | Fastest growing | City of London EC2V 6DN | founded 2018 | last round Series B, $26.2M, Sep 2025 | Companies House 11153050 | incorporated 2018-01-16 | 15 staff in filed accounts (period to 2025-12-31) | SIC 62012 | hiring 7 in London | licensed visa sponsor | work model remote (7 London job posts) | London HQ | on Sifted 100 UK & Ireland 2026, #43 | backed by Paladin Capital Group | near Mansion House (231 m) | https://www.mimica.ai | sources: [funding](https://www.paladincapgroup.com/2025/09/24/), [growth](https://www.paladincapgroup.com/2025/09/24/), [address](https://www.mimica.ai), [presence](https://www.mimica.ai) - **Mindgard** (`mindgard`): Lancaster University spinout that attacks and tests AI systems to find security holes before hackers do. AI / AI security | Fastest growing | Tower Hamlets E14 5AB | founded 2022 | raised $38M | last round Series A, £22M ($30M), Aug 2026 (led by Album VC) | Companies House 14120558 | incorporated 2022-05-20 | 11 staff in filed accounts (period to 2024-12-31) | SIC 62012, 62020, 62090 | licensed visa sponsor | London HQ | GitHub Mindgard | backed by Album VC, .406 Ventures, Atlantic Bridge, IQ Capital, Karma Ventures, Lakestar | near Canary Wharf (136 m) | https://mindgard.ai | sources: [funding](https://businesscloud.co.uk/news/lancaster-uni-spinout-mindgard-raises-another-22m/), [growth](https://businesscloud.co.uk/news/lancaster-uni-spinout-mindgard-raises-another-22m/), [address](https://mindgard.ai/contact-us), [presence](https://uktech.news/ai/lancaster-spinout-mindgard-raises-22m-to-scale-ai-security-platform-20260813) - **Mozart AI** (`mozart-ai`): AI music studio that helps artists generate stems, MIDI, synths and full songs with commercial rights. AI / AI Music Creation | Up and coming | Westminster SW1W 9SA | last round Seed, $6M, Feb 2026 | Companies House 16500829 | incorporated 2025-06-06 | SIC 62012 | London HQ | backed by Balderton Capital, EWOR, Mercuri | near Victoria (348 m) | https://mozartai.com | sources: [growth](https://www.uktech.news/ai/mozart-ai-generative-music-creation-platform-raises-4m-20260211), [address](https://find-and-update.company-information.service.gov.uk/company/16500829), [presence](https://www.musicbusinessworldwide.com/music-tech-startup-mozart-ai-raises-6m-in-oversubscribed-seed-round-led-by-balderton-capital) - **Napier AI** (`napier-ai`): AI anti money laundering platform for screening and transaction monitoring, used by over 150 financial institutions. AI (also Fintech) / AML Compliance | Fastest growing | Tower Hamlets E14 5NR | founded 2015 | last round Majority growth investment, Marlin Equity Partners, undisclosed, Feb 2025 | Companies House 09901129 | incorporated 2015-12-03 | 176 staff in filed accounts (period to 2024-12-31) | SIC 62012 | licensed visa sponsor | London HQ | backed by Marlin Equity Partners | near Canary Wharf (115 m) | https://www.napier.ai | sources: [funding](https://www.marlinequity.com/portfolio/napier-ai), [growth](https://www.economy-ni.gov.uk/news/london-based-napier-ai-create-over-100-jobs-north), [address](https://www.napier.ai/contact), [presence](https://www.economy-ni.gov.uk/news/london-based-napier-ai-create-over-100-jobs-north) - **NexGen Cloud** (`nexgen-cloud`): GPU cloud provider behind Hyperstack, offering AI compute and sovereign AI infrastructure in Europe. AI / GPU Cloud | Fastest growing | City of London EC4A 3AF | founded 2020 | last round Series A, $45M, Apr 2025 | Companies House 12556681 | incorporated 2020-04-15 | 18 staff in filed accounts (period to 2025-12-31) | SIC 63110 | hiring 7 in London | London HQ | near Chancery Lane (346 m) | https://www.nexgencloud.com | sources: [growth](https://uk.finance.yahoo.com/news/nexgen-cloud-secures-45-million-134800660.html), [address](https://www.nexgencloud.com/contact), [presence](https://www.comparethecloud.net/news/nexgen-cloud-opens-city-of-london-headquarters-as-uk-ai-sovereignty-push-gathers-pace) - **Nodes & Links** (`nodes-links`): AI platform for scheduling, risk and project controls on large construction and infrastructure projects. AI / Construction Project Controls | Up and coming | City of London EC4A 2AB | founded 2018 | last round Series B, £9.5M ($12M), Feb 2025 | Companies House 11388602 | incorporated 2018-05-30 | 19 staff in filed accounts (period to 2025-12-31) | SIC 62012 | London HQ | on Tech Nation Future Fifty 2025 | backed by ETF Partners | near St. Paul's (514 m) | https://nodeslinks.com | sources: [funding](https://constructionmanagement.co.uk/nodes-links-raises-9-5m-to-advance-ai-powered-scheduling/), [growth](https://constructionmanagement.co.uk/nodes-links-raises-9-5m-to-advance-ai-powered-scheduling/), [address](https://www.linkedin.com/company/nodeslinks), [presence](https://www.mazanti.dk/nyheder/mazanti-andersen-advises-2150-as-it-leads-11-million-series-a-for-nodes-links/) - **nPlan** (`nplan`): AI that forecasts schedule risk for construction and capital projects using data from 750,000+ past projects. AI / Construction Forecasting | Up and coming | Tower Hamlets E1 5JL | founded 2017 | last round Series B, $16M, Oct 2025 | Companies House 11043916 | incorporated 2017-11-02 | 35 staff in filed accounts (period to 2025-12-31) | SIC 62012 | hiring 8 in London | licensed visa sponsor | work model mixed (8 London job posts) | London HQ | backed by CapHorn, Chevron Technology Ventures, GV, LocalGlobe, Pentech Ventures, Suffolk Technologies | near Shoreditch High Street (473 m) | https://www.nplan.io | sources: [funding](https://www.nplan.io/press-releases/nplan-raises-16m-series-b-to-scale-its-ai-led-transformation-of-capital-project-delivery), [growth](https://www.nplan.io/press-releases/nplan-raises-16m-series-b-to-scale-its-ai-led-transformation-of-capital-project-delivery), [address](https://www.nplan.io), [presence](https://www.nplan.io) - **Nscale** (`nscale`): London AI cloud company that builds and runs GPU data centres across Europe and the US. AI / AI cloud infrastructure | Well known | Westminster W1S 2HX | founded 2024 | raised $3.7B | last round Series C, $2B, Mar 2026 | Companies House 16925886 | incorporated 2025-12-22 | SIC 64209 | London HQ | on LinkedIn Top Startups UK 2025, #13 | backed by 8090 Industries, Aker, Astra Capital Management, Citadel, Dell, Jane Street, Lenovo, Linden Advisors, Nokia, NVIDIA, Point72 | near Oxford Circus (323 m) | https://www.nscale.com | sources: [funding](https://en.wikipedia.org/wiki/Nscale), [growth](https://en.wikipedia.org/wiki/Nscale), [address](https://www.nscale.com/blog/nscale-london-a-strategic-hub-for-our-european-growth), [presence](https://en.wikipedia.org/wiki/Nscale) - **Odyssey** (`odyssey`): AI lab building general world models that generate interactive, real-time video simulations. AI / World Models | Well known | Camden N1C 4AG | founded 2023 | last round Series B, $310M, Jun 2026 | Companies House 15318300 | incorporated 2023-11-30 | 9 staff in filed accounts (period to 2025-12-31) | SIC 72190 | hiring 12 in London | licensed visa sponsor | London office, HQ elsewhere | backed by Natural Capital, Amazon, AMD Ventures, EQT, GV, IQT | near King's Cross & St Pancras International (225 m) | https://odyssey.systems | sources: [funding](https://odyssey.systems/our-series-b), [growth](https://odyssey.systems/our-series-b), [address](https://find-and-update.company-information.service.gov.uk/company/15318300), [presence](https://odyssey.systems/careers) - **Omnea** (`omnea`): AI procurement platform that runs company buying, supplier onboarding and supplier risk management. AI / Procurement software | Fastest growing | Westminster SW1W 9SH | founded 2022 | raised $75M | last round Series B, $50M, Sep 2025 | Companies House 13869078 | incorporated 2022-01-24 | SIC 62012 | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2026, #8; Tech Nation Future Fifty 2026; LinkedIn Top Startups UK 2025, #10 | backed by Insight Partners, Khosla Ventures, Accel, First Round Capital, Point Nine, Prosus | near Victoria (353 m) | https://www.omnea.co | sources: [funding](https://www.omnea.co/press-release/series-b-announcement), [growth](https://www.omnea.co/press-release/series-b-announcement), [address](https://www.omnea.co/privacy-policy), [presence](https://www.linkedin.com/company/omnea) - **Orbital** (`orbital`): AI platform that automates legal work on residential and commercial real estate deals for law firms and property teams. AI / Legal AI | Fastest growing | Camden WC1X 8HN | founded 2018 | last round Series B, $60M, Jan 2026 | Companies House 10732703 | incorporated 2017-04-20 | SIC 62012 | hiring 8 in London | licensed visa sponsor | work model hybrid (8 London job posts) | London HQ | backed by Brighton Park Capital, Grosvenor Group, JLL Spark, Moderne Ventures, Outward VC, REV, Seedcamp, The LegalTech Fund | near Chancery Lane (77 m) | https://www.orbital.tech | sources: [funding](https://tech.eu/2026/01/26/orbital-raises-60m-series-b-to-automate-real-estate-law-with-ai/), [growth](https://tech.eu/2026/01/26/orbital-raises-60m-series-b-to-automate-real-estate-law-with-ai/), [address](https://www.orbital.tech/about), [presence](https://cfotech.co.uk/story/orbital-raises-usd-60m-to-scale-ai-for-real-estate-law) - **Orbital Industries** (`orbital-industries`): Uses AI to design advanced materials and data centre cooling hardware, and is expanding into energy and semiconductors. AI / AI materials discovery | Fastest growing | Camden WC1N 2EB | founded 2022 | last round Series B, $50M, May 2026 | Companies House 14332843 | incorporated 2022-09-02 | SIC 72190 | hiring 5 in London | licensed visa sponsor | work model hybrid (5 London job posts) | London HQ | backed by Plural, Compound, Fly Ventures, NVentures, Radical Ventures | near Chancery Lane (510 m) | https://www.orbitalindustries.com | sources: [funding](https://tech.eu/2026/05/28/orbital-industries-secures-50m-to-scale-data-centre-infrastructure-systems/), [growth](https://tech.eu/2026/05/28/orbital-industries-secures-50m-to-scale-data-centre-infrastructure-systems/), [address](https://www.orbitalindustries.com/privacy-policy), [presence](https://jobs.ashbyhq.com/orbitalindustries) - **Origin** (`origin`): Origin is a platform that uses AI to consolidate and analyse employee benefits data for multinational companies. AI / HR benefits | Fastest growing | Hackney EC2A 4NE | founded 2024 | raised $50M+ | last round Series A+, $30M, Mar 2026 | Companies House 15585159 | incorporated 2024-03-22 | 24 staff in filed accounts (period to 2025-03-31) | SIC 62090 | licensed visa sponsor | London HQ | backed by Felix Capital, Notion Capital, Acadian Ventures | near Old Street (321 m) | https://www.originbenefits.com | sources: [funding](https://thenextweb.com/news/origin-30m-series-a-plus), [growth](https://thenextweb.com/news/origin-30m-series-a-plus), [address](https://find-and-update.company-information.service.gov.uk/company/15585159), [presence](https://thenextweb.com/news/origin-30m-series-a-plus) - **Oriole Networks** (`oriole-networks`): Builds PRISM, a pure photonic switching network that speeds up AI data centres and cuts energy use. AI (also Deeptech) / Photonic Networking | Up and coming | Islington EC1Y 2AA | founded 2023 | Companies House 14802813 | incorporated 2023-04-14 | 50 staff in filed accounts (period to 2025-12-31) | SIC 26200, 26309 | licensed visa sponsor | London HQ | backed by Plural, Clean Growth Fund, Dorilton Ventures, UCL Technology Fund, XTX Ventures | near Moorgate (426 m) | https://www.oriolenetworks.com | sources: [growth](https://oriolenetworks.com/oriole-to-supercharge-data-centers/), [address](https://www.oriolenetworks.com), [presence](https://www.cbinsights.com/company/oriole-networks) - **Outerlimit** (`outerlimit`): Outerlimit is a security and authorisation layer that checks identity, policy and context before an AI agent's action runs. AI / AI agent security | Up and coming | Islington N1 9AB | last round Pre-seed, $16M, Oct 2026 | Companies House 15915710 | incorporated 2024-08-23 | 1 staff in filed accounts (period to 2025-12-31) | SIC 62012 | licensed visa sponsor | London HQ | backed by AlbionVC, Crane Venture Partners, Evolution Equity Partners | near King's Cross & St Pancras International (149 m) | https://www.outerlimit.com | sources: [funding](https://itbrief.co.uk/story/outerlimit-raises-usd-16-million-to-secure-ai-agents), [growth](https://itbrief.co.uk/story/outerlimit-raises-usd-16-million-to-secure-ai-agents), [address](https://www.outerlimit.com/terms-of-use), [presence](https://itbrief.co.uk/story/outerlimit-raises-usd-16-million-to-secure-ai-agents) - **Paid** (`paid`): Billing platform that helps AI agent companies price, track costs and prove value to customers. AI / AI Agent Billing | Fastest growing | Islington EC1R 3AL | founded 2024 | raised $33.3M | last round Seed, $21.6M, Sep 2025 | Companies House 16113498 | incorporated 2024-12-02 | 7 staff in filed accounts (period to 2025-12-31) | SIC 62012, 70100 | licensed visa sponsor | London HQ | GitHub paid-ai | backed by Lightspeed Venture Partners, EQT Ventures, FUSE | near Farringdon (580 m) | https://www.paid.ai | sources: [funding](https://techcrunch.com/2025/09/28/paid-the-ai-agent-results-based-billing-startup-from-manny-medina-raises-huge-21m-seed/), [growth](https://techcrunch.com/2025/09/28/paid-the-ai-agent-results-based-billing-startup-from-manny-medina-raises-huge-21m-seed/), [address](https://paid.ai/legal/privacy), [presence](https://jobs.ashbyhq.com/paid) - **Pharosyn** (`pharosyn`): AI platform that helps pharma teams make commercial, portfolio and competitive intelligence decisions faster. AI / Pharma commercial AI | Up and coming | City of London EC2V 6DN | raised $3M | last round Seed, $3M, Sep 2026 | Companies House 17410200 | incorporated 2026-08-20 | SIC 62012 | London HQ | backed by Moonfire Ventures, Entrepreneur First, General Advance, Transpose Platform | near Mansion House (231 m) | https://www.pharosyn.ai | sources: [funding](https://www.pharosyn.ai/news/pharosyn-raises-3m), [growth](https://www.pharosyn.ai/news/pharosyn-raises-3m), [address](https://find-and-update.company-information.service.gov.uk/company/17410200), [presence](https://find-and-update.company-information.service.gov.uk/company/17410200) - **PhysicsX** (`physicsx`): Physics AI platform that helps engineers in aerospace, auto and energy design and test products faster. AI (also Deeptech) / Industrial engineering AI | Well known | Hackney EC2A 4DQ | founded 2019 | raised $487M | last round Series C, $300M, Jun 2026 | Companies House 12134466 | incorporated 2019-08-01 | SIC 71122, 72190 | hiring 16 in London | licensed visa sponsor | London HQ | on Deloitte UK Technology Fast 50 2025, #49 | backed by Atomico, General Catalyst, Temasek, Applied Materials, Intrepid Growth Partners, July Fund, M&G Investments, NGP, NVIDIA, Radius, Siemens | near Old Street (344 m) | https://www.physicsx.ai | sources: [funding](https://enkiai.com/ai-infrastructure/physicsx-ai-valuation-siemens/), [growth](https://www.physicsx.ai/newsroom/physicsx-announces-300m-series-c-to-accelerate-physics-ai-for-industrial-engineering), [address](https://www.physicsx.ai/newsroom/physicsx-announces-300m-series-c-to-accelerate-physics-ai-for-industrial-engineering), [presence](https://businesscloud.co.uk/news/uk-ai-firm-physicsx-valued-at-1-8bn-by-fresh-funding/) - **Polaron** (`polaron`): Imperial College spinout using AI to analyse and design advanced materials such as EV battery electrodes. AI (also Deeptech) / AI for materials science | Up and coming | Hackney E2 8JF | founded 2023 | raised $8M+ | last round $8M, Feb 2026 (led by Racine2) | Companies House 14882059 | incorporated 2023-05-19 | 7 staff in filed accounts (period to 2025-05-31) | SIC 62012, 71121, 71122 | licensed visa sponsor | London HQ | backed by Racine2, Futurepresent, Speedinvest | near Hoxton (150 m) | https://polaron.ai | sources: [funding](https://www.polaron.ai/newsroom/polaron-raises-8m-to-build-the-intelligence-layer-for-materials-science), [growth](https://challengeworks.org/challenge-prizes/manchester-prize-round-1/), [address](https://polaron.ai), [presence](https://www.polaron.ai/) - **PolyAI** (`polyai`): Builds voice AI agents that answer customer service calls for large companies. AI / Voice AI | Fastest growing | Westminster W2 6HY | founded 2017 | raised $200M+ | last round Series D, $86M, Dec 2025 | Companies House 11048129 | incorporated 2017-11-06 | SIC 62012 | licensed visa sponsor | London HQ | on Deloitte UK Technology Fast 50 2025, #14; Sifted 100 UK & Ireland 2024, #14; Tech Nation Future Fifty 2024; Deloitte UK Technology Fast 50 2024, #15 | backed by Georgian, Hedosophia, Khosla Ventures, British Business Bank, Citi Ventures, NVentures, Point72 Ventures, Sands Capital, Squarepoint Ventures, Zendesk Ventures | near Paddington (436 m) | https://poly.ai | sources: [funding](https://poly.ai/blog/polyai-raises-86m-to-transform-how-enterprises-talk-to-their-customers), [growth](https://poly.ai/blog/polyai-raises-86m-to-transform-how-enterprises-talk-to-their-customers), [address](https://poly.ai/contact), [presence](https://techcrunch.com/?p=2199776) - **Prevalent AI** (`prevalent-ai`): Security data fabric that builds a knowledge graph of enterprise assets and identities for security teams. AI / Cybersecurity Data | Fastest growing | Hackney EC2A 4HT | founded 2017 | raised $22M | last round Growth, $22M, Aug 2026 | Companies House 10605045 | incorporated 2017-02-07 | 4 staff in filed accounts (period to 2025-03-31) | SIC 62020 | licensed visa sponsor | London HQ | backed by Integrity Growth Partners | near Old Street (483 m) | https://www.prevalent.ai | sources: [funding](https://siliconangle.com/2026/08/19/prevalent-ai-raises-first-outside-capital-in-nine-years-with-22m-round/), [growth](https://siliconangle.com/2026/08/19/prevalent-ai-raises-first-outside-capital-in-nine-years-with-22m-round/), [address](https://www.prevalent.ai/privacy-policy/), [presence](https://builtinlondon.uk/company/prevalent-ai) - **Prima Mente** (`prima-mente`): AI biology lab that builds foundation models from its own data to diagnose and treat brain disease. AI (also Health) / Brain foundation models | Up and coming | Islington N7 9AS | founded 2023 | Companies House 14890974 | incorporated 2023-05-24 | 4 staff in filed accounts (period to 2024-05-31) | SIC 72110 | London HQ | Antler | backed by Beyond Capital, Bluebirds Capital, Boss Group, Episode 1 Ventures, Octopus Ventures | near Caledonian Road & Barnsbury (580 m) | https://www.primamente.com | sources: [growth](https://www.gov.uk/government/news/ai-firms-pioneering-drug-discovery-cheaper-supercomputing-and-more-get-first-backing-through-uks-sovereign-ai), [address](https://www.primamente.com/privacy), [presence](https://pharmaphorum.com/news/neurology-biomanufacturing-start-ups-bag-uk-ai-funding) - **Procure AI** (`procure-ai`): AI-native procurement platform using AI agents for sourcing, negotiation, intake and spend analytics at large enterprises. AI / Procurement Automation | Fastest growing | Westminster W1K 3NB | founded 2020 | raised £9.9M (~$12.6M) | last round Seed, $13M, Nov 2025 | Companies House 12564716 | incorporated 2020-04-20 | 6 staff in filed accounts (period to 2025-04-30) | SIC 62012 | London HQ | on Sifted 100 UK & Ireland 2026, #99 | backed by Headline, C4 Ventures, Futury Capital | near Bond Street (332 m) | https://www.procure.ai | sources: [funding](https://www.datocms-assets.com/60124/1774006698-sifted-100-uk-ireland-2026.pdf), [growth](https://www.datocms-assets.com/60124/1774006698-sifted-100-uk-ireland-2026.pdf), [address](https://find-and-update.company-information.service.gov.uk/company/12564716), [presence](https://find-and-update.company-information.service.gov.uk/company/12564716) - **Prolific** (`prolific`): Platform supplying vetted human participants for research and for AI model training and evaluation. AI / Human data for AI | Up and coming | Hackney EC2A 4PS | founded 2014 | raised $33.4M | last round Series A, $32M, Jul 2023 | Companies House 08991598 | incorporated 2014-04-10 | 162 staff in filed accounts (period to 2025-12-31) | SIC 74909 | hiring 1 in London | licensed visa sponsor | London HQ | GitHub prolific-oss | Y Combinator S19 | on Deloitte UK Technology Fast 50 2023, #46 | backed by Oxford Science Enterprises, Partech | near Shoreditch High Street (462 m) | https://www.prolific.com | sources: [funding](https://au.finance.yahoo.com/news/prolific-raises-32m-train-stress-232817114.html), [growth](https://au.finance.yahoo.com/news/prolific-raises-32m-train-stress-232817114.html), [address](https://boards-api.greenhouse.io/v1/boards/prolific/offices), [presence](https://www.ycombinator.com/companies/prolific) - **Qargo** (`qargo`): AI-powered cloud transport management system that automates planning, admin and invoicing for hauliers and forwarders. AI / Transport Management | Fastest growing | Camden WC2B 6NH | founded 2018 | raised $54M | last round Series B, $33M, Dec 2025 | Companies House 11390525 | incorporated 2018-05-31 | 33 staff in filed accounts (period to 2025-12-31) | SIC 62020 | licensed visa sponsor | London HQ | backed by Sofina, Balderton Capital | near Holborn (38 m) | https://www.qargo.com | sources: [funding](https://www.qargo.com/post/series-b-funding/), [growth](https://www.qargo.com/post/series-b-funding/), [address](https://www.qargo.com/contact), [presence](https://www.qargo.com/contact/) - **Quantexa** (`quantexa`): Decision intelligence software that connects data to spot fraud, financial crime and risk for banks and governments. AI (also Fintech) / Decision Intelligence | Well known | Lambeth SE1 7ND | founded 2016 | raised $545M | last round Series F, $175M, Mar 2025 | Companies House 10045407 | incorporated 2016-03-07 | SIC 62012 | licensed visa sponsor | London HQ | backed by AlbionVC, BNY, Dawn Capital, Evolution Equity Partners, GIC, HSBC, Teachers' Venture Growth, Warburg Pincus, British Patient Capital | near Waterloo (180 m) | https://www.quantexa.com | sources: [funding](https://www.clay.com/dossier/quantexa-funding), [growth](https://siliconangle.com/2025/03/05/quantexa-reels-175m-data-management-platform/), [address](https://www.quantexa.com/about/), [presence](https://en.wikipedia.org/wiki/Quantexa) - **Quix** (`quix`): Data platform that ingests real-time engineering and test data for hardware teams, with AI agents that automate analysis, dashboards and workflows. AI / Engineering data | Up and coming | City of London EC4M 7AN | founded 2020 | last round Series A, £11M, Nov 2022 | Companies House 12493101 | incorporated 2020-03-02 | 12 staff in filed accounts (period to 2026-03-31) | SIC 63110 | London HQ | backed by MMC Ventures, Passion Capital, Project A Ventures | near St. Paul's (344 m) | https://quix.io | sources: [funding](https://businesscloud.co.uk/news/four-mclaren-f1-engineers-raise-11m-for-startup/), [growth](https://quix.io/about), [address](https://find-and-update.company-information.service.gov.uk/company/12493101), [presence](https://quix.io/careers/content-creator/) - **Quorso** (`quorso`): AI platform that turns retail data into daily priorities and actions for store and field leaders. AI / Retail Operations AI | Up and coming | City of London EC2M 4YJ | founded 2016 | Companies House 10040671 | incorporated 2016-03-03 | 23 staff in filed accounts (period to 2025-12-31) | SIC 62012 | licensed visa sponsor | London office, HQ elsewhere | on Deloitte UK Technology Fast 50 2024, #16; Deloitte UK Technology Fast 50 2023, #49 | backed by OMERS Ventures, Hambro Perks | near Aldgate (338 m) | https://www.quorso.com | sources: [growth](https://www.fast50.co.uk/fast50/winners/2024/), [address](https://www.quorso.com/contact), [presence](https://www.quorso.com) - **Raft** (`raft`): AI agent platform that automates shipment paperwork and operations tasks for freight forwarders and customs brokers. AI / Logistics automation | Up and coming | Southwark SE1 0AX | raised $48M | last round Series B, $30M, Jul 2023 | Companies House 11063616 | incorporated 2017-11-14 | SIC 62012 | licensed visa sponsor | London HQ | backed by Eight Roads, Bessemer Venture Partners, Dynamo Ventures, Episode 1 Ventures, Moguntia Capital | near Borough (285 m) | https://www.raft.ai | sources: [funding](https://tech.eu/2023/07/11/london-based-logistics-provider-raft-raises-30-million-in-series-b-funding-round/), [growth](https://www.raft.ai), [address](https://www.raft.ai/privacy), [presence](https://tech.eu/2023/07/11/london-based-logistics-provider-raft-raises-30-million-in-series-b-funding-round/) - **Recraft** (`recraft`): Generative AI image and design tool with its own model, letting designers and marketers create on-brand images, vectors and illustrations with style controls. AI / Generative design | Fastest growing | Camden WC2B 5AH | founded 2022 | last round Series B, $30M, May 2025 | Companies House 14525957 | incorporated 2022-12-06 | 22 staff in filed accounts (period to 2025-12-31) | SIC 62012 | hiring 2 in London | licensed visa sponsor | work model mixed (2 London job posts) | London HQ | backed by Accel, Khosla Ventures, Madrona Ventures, RTP Global | near Holborn (184 m) | https://www.recraft.ai | sources: [funding](https://www.recraft.ai/news/series-b-announcement), [growth](https://www.recraft.ai/news/series-b-announcement), [address](https://find-and-update.company-information.service.gov.uk/company/14525957), [presence](https://www.recraft.ai/about) - **Recursive** (`recursive`): AI lab building self-improving AI to automate research and discovery, with offices in London and San Francisco. AI / Self-improving AI | Well known | Islington N1 9FN | founded 2025 | raised $650M | last round $650M, May 2026 | Companies House 16937077 | incorporated 2025-12-31 | SIC 72190 | licensed visa sponsor | London office, HQ elsewhere | backed by Greycroft, GV, AMD, NVIDIA | near King's Cross & St Pancras International (217 m) | https://www.recursive.com | sources: [funding](https://tech.eu/2026/05/13/recursive-superintelligence-emerges-from-stealth-with-650m-raise/), [growth](https://tech.eu/2026/05/13/recursive-superintelligence-emerges-from-stealth-with-650m-raise/), [address](https://find-and-update.company-information.service.gov.uk/company/16937077), [presence](https://www.recursive.com/) - **Relation** (`relation`): Drug discovery company combining machine learning and human cell experiments to find new medicines. AI (also Health) / AI Drug Discovery | Fastest growing | Camden NW1 3BG | founded 2019 | raised $86M | last round $26M extension, Dec 2025 | Companies House 12305953 | incorporated 2019-11-08 | SIC 72110 | hiring 16 in London | licensed visa sponsor | London HQ | on Tech Nation Future Fifty 2024 | backed by DCVC, NVentures, ARK Invest, Deerfield Management, Khosla Ventures, Magnetic Ventures | near Great Portland Street (201 m) | https://www.relationrx.com | sources: [funding](https://juvlabs.com/?p=5701), [growth](https://www.biospace.com/press-releases/relation-announces-expanded-collaboration-with-gsk), [address](https://www.relationrx.com), [presence](https://www.businesswire.com/news/home/20230221005853/en/Relation-Therapeutics-announces-launch-of-flagship-integrated-wetdry-laboratory-at-the-heart-of-Londons-Knowledge-Quarter) - **Resolutiion** (`resolutiion`): Resolutiion is an AI platform that spots commercial dispute and delivery risk in large contracts for defence, energy and manufacturing firms. AI / Contract risk | Up and coming | Tower Hamlets E14 9SH | founded 2023 | raised $10.4M | last round Seed, $10.4M, Sep 2026 | Companies House 14287371 | incorporated 2022-08-10 | 1 staff in filed accounts (period to 2024-08-31) | SIC 82990 | licensed visa sponsor | London HQ | backed by Auxxo, Cherry Ventures, Chevron Technology Ventures, LocalGlobe, Octopus Ventures | near South Quay (87 m) | https://www.resolutiion.com | sources: [funding](https://www.vestbee.com/insights/articles/top-european-funding-rounds-closed-in-september-2026), [growth](https://www.vestbee.com/insights/articles/top-european-funding-rounds-closed-in-september-2026), [address](https://www.resolutiion.com), [presence](https://www.resolutiion.com) - **RevEng.AI** (`reveng-ai`): AI platform that analyses compiled software binaries for malware detection, decompilation and supply chain security. AI / Binary Analysis Security | Up and coming | Islington EC2A 1NT | founded 2022 | raised $19.2M | last round Series A, $15M, May 2026 | Companies House 14818671 | incorporated 2023-04-21 | 11 staff in filed accounts (period to 2025-12-31) | SIC 62012 | London HQ | GitHub RevEngAI | backed by Episode 1 Ventures, IQ Capital, IQT, Osney Capital, Sands Capital | near Moorgate (236 m) | https://reveng.ai | sources: [funding](https://www.vestbee.com/insights/articles/top-european-funding-rounds-closed-in-may-2026), [growth](https://www.vestbee.com/insights/articles/top-european-funding-rounds-closed-in-may-2026), [address](https://find-and-update.company-information.service.gov.uk/company/14818671), [presence](https://www.linkedin.com/company/reveng-ai) - **Rezolve AI** (`rezolve-ai`): Rezolve AI sells AI-powered product search and conversational commerce software to retailers. AI / AI commerce | Fastest growing | Westminster W1S 3DN | Companies House 14573691 | incorporated 2023-01-05 | SIC 64209 | licensed visa sponsor | London HQ | near Piccadilly Circus (323 m) | https://www.rezolve.com | sources: [growth](https://finviz.com/news/349287/rezolve-ai-delivers-60-million-q1-2026-revenue-exceeding-full-year-2025-revenue-in-just-90-days), [address](https://find-and-update.company-information.service.gov.uk/company/14573691), [presence](https://finviz.com/news/349287/rezolve-ai-delivers-60-million-q1-2026-revenue-exceeding-full-year-2025-revenue-in-just-90-days) - **Sable Bio** (`sable-bio`): AI platform that helps pharma teams spot drug target safety risks earlier in discovery. AI (also Health) / Drug Safety AI | Up and coming | Tower Hamlets E1 1EW | founded 2023 | last round Seed, $3.75M, Feb 2026 | Companies House 15084894 | incorporated 2023-08-21 | 6 staff in filed accounts (period to 2025-08-31) | SIC 74909 | licensed visa sponsor | London HQ | backed by MMC Ventures, Episode 1 Ventures, Seedcamp | near Aldgate East (378 m) | https://sablebio.com | sources: [funding](https://sablebio.com/news/sable-bio-seed-round), [growth](https://sablebio.com/news/sable-bio-seed-round), [address](https://sablebio.com/about), [presence](https://sablebio.com/about) - **Scope** (`scope`): Scope gives testing, inspection and certification inspectors an AI workflow that captures site data by voice, video and forms and generates structured reports. AI / Industrial inspection | Fastest growing | Hackney EC2A 4NA | founded 2024 | last round $20M round led by Index Ventures, May 2026 | Companies House 15397270 | incorporated 2024-01-08 | 2 staff in filed accounts (period to 2025-01-31) | SIC 62012 | hiring 2 in London | licensed visa sponsor | work model on-site (2 London job posts) | London HQ | backed by Index Ventures, Entrepreneur First, Susa Ventures, Syndicate 1 | near Old Street (321 m) | https://www.getscope.ai | sources: [funding](https://pulse2.com/scope-20-million-raised-for-ai-inspection-platform-transforming-the-tic-industry/), [growth](https://pulse2.com/scope-20-million-raised-for-ai-inspection-platform-transforming-the-tic-industry/), [address](https://find-and-update.company-information.service.gov.uk/company/15397270), [presence](https://startuprise.co.uk/uk-ai-startup-scope-raises-e17-2m-to-speed-up-industrial-inspections/) - **Searchable** (`searchable`): Tracks and improves how brands show up in answers from ChatGPT and other AI search engines. AI / AI search visibility | Up and coming | Southwark SE1 3LE | founded 2025 | raised $18M | last round $14M, May 2026 (led by Headline) | Companies House 16579753 | incorporated 2025-07-14 | SIC 82990 | licensed visa sponsor | London HQ | backed by Headline | near London Bridge (728 m) | https://searchable.com | sources: [funding](https://www.lxahub.com/stories/searchable-raises-14m-to-help-brands-win-visibility-in-ai-search), [growth](https://pulse2.com/searchable-acquires-meridian/), [address](https://searchable.com), [presence](https://www.searchable.com/about) - **Signal AI** (`signal-ai`): AI platform that monitors global media and risk signals for reputation and risk teams at large enterprises. AI / Reputation Intelligence | Fastest growing | Islington EC1Y 8RN | founded 2013 | last round Majority growth investment, $165M, 2025 | Companies House 08468207 | incorporated 2013-04-02 | 187 staff in filed accounts (group, period to 2025-03-31) | SIC 96090 | hiring 2 in London | licensed visa sponsor | work model hybrid (2 London job posts) | London HQ | on Tech Nation Future Fifty 2024 | backed by Frontline Ventures, Hearst Ventures, Highland Europe, MMC Ventures, Battery Ventures | near Old Street (156 m) | https://www.signal-ai.com | sources: [funding](https://www.signal-ai.com/about), [growth](https://www.signal-ai.com/about), [address](https://www.signal-ai.com/legal-policy/privacy-policy), [presence](https://www.linkedin.com/company/signal-artificial-intelligence/) - **Skin Analytics** (`skin-analytics`): Makes DERM, a Class III CE marked AI device that triages skin cancer referrals for the NHS and insurers. AI (also Health) / AI Dermatology | Fastest growing | Islington EC1M 4BH | founded 2012 | last round Series B, £15M, Apr 2025 | Companies House 07919560 | incorporated 2012-01-23 | SIC 62012, 86900 | hiring 4 in London | licensed visa sponsor | work model mixed (4 London job posts) | London HQ | on Tech Nation Future Fifty 2025 | backed by Intrepid Growth Partners | near Farringdon (206 m) | https://skin-analytics.com | sources: [funding](https://htn.co.uk/2025/04/23/british-healthtech-company-skin-analytics-secures-15-million-funding), [growth](https://htn.co.uk/2025/04/23/british-healthtech-company-skin-analytics-secures-15-million-funding), [address](https://skin-analytics.com/contact-us/), [presence](https://digitalhealth.london/innovation-directory/profile/skin-analytics) - **Slamcore** (`slamcore`): Vision AI that tracks forklifts and other warehouse equipment in real time and alerts operators to nearby pedestrians. AI / Spatial Intelligence | Up and coming | Southwark SE1 1JA | founded 2016 | raised $45M | last round $14M, May 2026 | Companies House 09999502 | incorporated 2016-02-11 | 28 staff in filed accounts (period to 2025-12-31) | SIC 62012, 72190 | licensed visa sponsor | London HQ | backed by ROKStar Ventures, Amadeus Capital Partners, Interwoven Ventures, IP Group, MMC Ventures, Presidio Ventures, Samsung Ventures, Toyota Ventures | near Borough (89 m) | https://www.slamcore.com | sources: [funding](https://www.slamcore.com/press-release/14m-to-scale-visual-ai-across-intralogistics/), [growth](https://www.slamcore.com/press-release/14m-to-scale-visual-ai-across-intralogistics/), [address](https://www.linkedin.com/company/slamcore-limited/), [presence](https://www.slamcore.com/press-release/14m-to-scale-visual-ai-across-intralogistics/) - **Solve Intelligence** (`solve-intelligence`): AI platform that helps patent attorneys draft, prosecute and litigate patents faster. AI / Patent AI | Fastest growing | City of London WC2A 1QS | founded 2023 | raised $55M | last round Series B, $40M, Dec 2025 | Companies House 15206817 | incorporated 2023-10-12 | 6 staff in filed accounts (period to 2024-12-31) | SIC 62012 | hiring 14 in London | licensed visa sponsor | work model on-site (14 London job posts) | London HQ | Y Combinator S23, Conception X CX21 | backed by 20VC, Visionaries Club, Operator Collective, Thomson Reuters, Y Combinator | near Chancery Lane (125 m) | https://www.solveintelligence.com | sources: [funding](https://ipwatchdog.com/press/solve-intelligence-takes-total-funding-to-55m-with-series-b-round-to-build-ai-for-patents-and-launches-new-claim-charting-product/), [growth](https://ipwatchdog.com/press/solve-intelligence-takes-total-funding-to-55m-with-series-b-round-to-build-ai-for-patents-and-launches-new-claim-charting-product/), [address](https://jobs.ashbyhq.com/solveintelligence/2efa5b34-f6a1-4419-b2f7-1c816e8f346e), [presence](https://www.solveintelligence.com/careers) - **SolveAI** (`solveai`): Enterprise platform that lets employees build and deploy custom AI applications using natural language instead of code. AI / Enterprise AI Apps | Fastest growing | City of London WC1V 7QH | founded 2025 | raised $50M | last round Series A, $45M, Feb 2026 | Companies House 16647686 | incorporated 2025-08-13 | SIC 62012 | London HQ | backed by Accel, GV, Mantis VC, NeverLift, Northzone | near Chancery Lane (79 m) | https://solve.ai | sources: [funding](https://www.vestbee.com/insights/articles/solve-ai-launches-with-50-m), [growth](https://www.vestbee.com/insights/articles/solve-ai-launches-with-50-m), [address](https://jobs.ashbyhq.com/solve.ai), [presence](https://tech.eu/2026/02/25/solveai-raises-50m-to-help-employees-build-their-own-enterprise-software/) - **Sona** (`sona`): AI platform running scheduling, HR and payroll for frontline businesses in hospitality, retail and care. AI / Workforce Management | Fastest growing | Westminster W1F 0EQ | founded 2021 | raised $100M+ | last round Series B, $45M, Apr 2026 | Companies House 13431655 | incorporated 2021-06-01 | 58 staff in filed accounts (period to 2025-01-31) | SIC 62090 | London HQ | Antler | on LinkedIn Top Startups UK 2025, #6; LinkedIn Top Startups UK 2024, #12 | backed by N47, Felicis, Gradient Ventures, Italian Founders Fund, Northzone | near Tottenham Court Road (348 m) | https://getsona.com | sources: [funding](https://www.prnewswire.co.uk/news-releases/sona-raises-45m-series-b-to-bring-ai-to-the-frontline-economy-302730501.html), [growth](https://www.prnewswire.co.uk/news-releases/sona-raises-45m-series-b-to-bring-ai-to-the-frontline-economy-302730501.html), [address](https://find-and-update.company-information.service.gov.uk/company/13431655), [presence](https://builtinlondon.uk/company/sona-getsonacom) - **SourceWhale** (`sourcewhale`): AI recruitment platform that combines candidate sourcing, multichannel outreach, call notes and CRM for recruiting agencies. AI / Recruiting Automation | Fastest growing | City of London EC2N 3AR | founded 2019 | Companies House 12313112 | incorporated 2019-11-13 | SIC 62012 | London HQ | on Deloitte UK Technology Fast 50 2024, #4 | near Liverpool Street (353 m) | https://sourcewhale.com | sources: [growth](https://www.fast50.co.uk/fast50/winners/2024/), [address](https://app.welcometothejungle.com/jobs/0cu7mUee/company), [presence](https://www.offerzen.com/companies/sourcewhale) - **Sprout.ai** (`sprout-ai`): Sprout.ai uses AI to automate insurance claims handling, from document reading to policy checks and fraud detection. AI / Insurtech | Up and coming | Hackney EC2A 4EG | founded 2018 | last round £5.4M, Oct 2023 | Companies House 11242135 | incorporated 2018-03-08 | 28 staff in filed accounts (period to 2025-12-31) | SIC 62012 | licensed visa sponsor | London HQ | backed by Amadeus Capital Partners, Praetura Ventures, Capricorn Capital Partners, Forefront Venture Partners, Portfolio Ventures Angel Fund, Verstra Ventures | near Old Street (450 m) | https://sprout.ai | sources: [funding](https://tech.eu/2023/10/31/sprout-bags-ps54m-funding-boosts-ai-in-insurance-claims-automation), [growth](https://sprout.ai/resource/metlife-partners-with-sprout-ai-to-accelerate-claims-automation-across-global-markets/), [address](https://sprout.ai/contact-us/), [presence](https://sprout.ai/contact-us/) - **Stability AI** (`stability-ai`): Builds open generative AI models for images, video, audio and 3D, best known for Stable Diffusion. AI / Generative Models | Well known | Kensington and Chelsea W11 3JY | founded 2019 | last round Series B, $76M, Aug 2026 | Companies House 12295325 | incorporated 2019-11-04 | SIC 62012, 62090 | licensed visa sponsor | London HQ | backed by Coatue, Lightspeed Venture Partners, AMD Ventures, Electronic Arts, Greycroft, O'Shaughnessy Ventures, Pacific Alliance Ventures, Sony Music Group, Sound Ventures, Universal Music Group, Warner Music Group | near Notting Hill Gate (89 m) | https://stability.ai | sources: [funding](https://en.wikipedia.org/wiki/Stability_AI), [growth](https://en.wikipedia.org/wiki/Stability_AI), [address](https://stability.ai/privacypolicy), [presence](https://en.wikipedia.org/wiki/Stability_AI) - **Stanhope AI** (`stanhope-ai`): Builds brain-inspired AI that lets robots and drones adapt in real time on the device. AI / Active Inference AI | Up and coming | Hackney EC2A 4PS | raised $8M+ | last round Seed, $8M, Feb 2026 | Companies House 13271847 | incorporated 2021-03-16 | 7 staff in filed accounts (period to 2025-03-31) | SIC 58290 | licensed visa sponsor | London HQ | backed by Frontline Ventures, Auxxo, MMC Ventures, Paladin Capital Group, UCL Technology Fund | near Shoreditch High Street (462 m) | https://www.stanhopeai.com | sources: [funding](https://www.stanhopeai.com/stanhope-ai-news/stanhope-ai-raises-8m-as-real-world-ai-model-gains-momentum-beyond-llms), [growth](https://businesscloud.co.uk/news/stanhope-ai-raises-6m-in-seed-funding-round/), [address](https://www.stanhopeai.com/contact-us), [presence](https://www.linkedin.com/company/stanhope-ai) - **Stelia** (`stelia`): Enterprise AI workspace for training private models and agents on proprietary data, with shared organisational AI memory. AI / Enterprise AI Platform | Up and coming | Lambeth SE1 7ND | founded 2021 | last round Convertible note, $8.2M, Mar 2025 | Companies House 13779434 | incorporated 2021-12-03 | 23 staff in filed accounts (period to 2026-03-31) | SIC 58290, 61100, 61900 | backed by 3VC, Episode 1 Ventures, Redbus Ventures, Ventures Together | near Waterloo (180 m) | https://stelia.ai | sources: [growth](https://newsroom.stelia.ai), [address](https://stelia.ai/legal) - **Stotles** (`stotles`): AI platform that helps companies find, qualify and bid for public sector contracts. AI / GovTech sales | Up and coming | City of London EC1M 7AA | last round Series A, $13M, May 2025 | Companies House 10912358 | incorporated 2017-08-11 | 52 staff in filed accounts (period to 2025-12-31) | SIC 63990 | licensed visa sponsor | London HQ | backed by Acton Capital, Headline, Form Ventures, Seedcamp | near Barbican (249 m) | https://www.stotles.com | sources: [funding](https://actoncapital.com/news/stotles-raises-13-million-series-a-to-help-suppliers-succeed-in-the-new-age-of-government-efficiency), [growth](https://actoncapital.com/news/stotles-raises-13-million-series-a-to-help-suppliers-succeed-in-the-new-age-of-government-efficiency), [address](https://www.linkedin.com/company/stotles/), [presence](https://actoncapital.com/news/stotles-raises-13-million-series-a-to-help-suppliers-succeed-in-the-new-age-of-government-efficiency) - **Supercede** (`supercede`): AI reinsurance intelligence platform helping brokers and cedents run client work and programme placement. AI (also Fintech) / Reinsurance AI | Up and coming | City of London EC4N 7HR | founded 2016 | last round Series A, $15M, Jun 2024 | Companies House 10475714 | incorporated 2016-11-11 | 15 staff in filed accounts (period to 2025-11-30) | SIC 62012, 66190 | licensed visa sponsor | London HQ | backed by Alven, AFG, MMC Ventures, Mundi Ventures, Outward VC, Seedcamp | near Monument (77 m) | https://www.supercede.com | sources: [funding](https://supercede.com/press-releases/supercede-secures-series-a/), [growth](https://www.supercede.com/), [address](https://www.supercede.com/), [presence](https://www.supercede.com/) - **SurrealDB** (`surrealdb`): Multi-model database built for AI agents and applications, available open source and as SurrealDB Cloud. AI / AI-Native Database | Fastest growing | Westminster W1D 2LG | founded 2021 | raised $44M | last round Series A, $38M, Nov 2025 | Companies House 13615201 | incorporated 2021-09-10 | SIC 62012, 62090 | licensed visa sponsor | London HQ | GitHub surrealdb | backed by Alumni Ventures, Begin Capital, Chalfen Ventures, Crew Capital, FirstMark, Georgian | near Oxford Circus (126 m) | https://surrealdb.com | sources: [funding](https://surrealdb.com/about), [growth](https://surrealdb.com/about), [address](https://surrealdb.com/careers), [presence](https://surrealdb.com/about) - **Synthesia** (`synthesia`): AI video platform that turns text into videos with realistic AI avatars for business training. AI / Generative AI video | Well known | Camden NW1 3BF | founded 2017 | raised $536M | last round Series E, $200M, Jan 2026 | Companies House 10933652 | incorporated 2017-08-25 | SIC 62012 | licensed visa sponsor | London HQ | on Forbes AI 50 2026; Deloitte UK Technology Fast 50 2025, #19; Forbes AI 50 2025; Forbes AI 50 2024 | backed by Accel, FirstMark, GV, Kleiner Perkins, New Enterprise Associates, Air Street Capital, Atlassian Ventures, Evantic Capital, Hedosophia, MMC Ventures, NVentures, PSP Growth, World Innovation Lab | near Great Portland Street (179 m) | https://www.synthesia.io | sources: [funding](https://en.wikipedia.org/wiki/Synthesia_(company)), [growth](https://www.lw.com/en/news/2026/01/latham-watkins-advises-synthesia-on-us200-million-series-e-and-secondary-transaction), [address](https://www.synthesia.io/about), [presence](https://en.wikipedia.org/wiki/Synthesia_(company)) - **Synthesized** (`synthesized`): AI platform that generates privacy-safe, production-like test data for software testing, migrations and AI agents. AI / Synthetic test data | Up and coming | Hackney E1 6HU | founded 2017 | Companies House 10903020 | incorporated 2017-08-07 | 14 staff in filed accounts (period to 2025-01-31) | SIC 62020, 63110, 72190 | hiring 4 in London | licensed visa sponsor | work model hybrid (4 London job posts) | London HQ | GitHub synthesized-io | Founders Factory | backed by Redalpine, Deutsche Bank, IQ Capital, Mercia Ventures, Seedcamp, UBS | near Shoreditch High Street (195 m) | https://www.synthesized.io | sources: [growth](https://www.synthesized.io/), [address](https://www.synthesized.io/), [presence](https://www.synthesized.io/) - **Tessl** (`tessl`): Platform for building, testing and sharing skills and context that guide AI coding agents like Claude Code and Cursor. AI / AI Coding Agents | Fastest growing | Islington N1 9JY | founded 2024 | raised $125M | last round Series A, $100M, Nov 2024 | Companies House 15532364 | incorporated 2024-02-29 | SIC 58290 | hiring 5 in London | licensed visa sponsor | work model hybrid (5 London job posts) | London HQ | backed by boldstart ventures, GV, Index Ventures, Accel | near King's Cross & St Pancras International (247 m) | https://tessl.io | sources: [funding](https://siliconangle.com/2024/11/14/ai-powered-developer-tooling-startup-tessl-raises-125m/), [growth](https://siliconangle.com/2024/11/14/ai-powered-developer-tooling-startup-tessl-raises-125m/), [address](https://tessl.io/careers), [presence](https://tessl.io/about) - **Threedium** (`threedium`): AI platform that generates, edits and publishes 3D models and interactive 3D product experiences for brands and creators. AI / 3D content | Up and coming | Islington EC1V 2NX | founded 2017 | raised €13M (~$14M) | last round Series A, €10M, Oct 2023 | Companies House 10881024 | incorporated 2017-07-24 | 2 staff in filed accounts (period to 2025-12-31) | SIC 62012, 62020, 62090 | London HQ | on Deloitte UK Technology Fast 50 2023, #30 | backed by Collider, ConsenSys Mesh, EdenBase, High-Tech Gruenderfonds, Interpublic Group, Kinisis Ventures, Lyra Ventures, Nirvana Family Office, Reflexive Capital | near Old Street (146 m) | https://threedium.io/ | sources: [funding](https://funding.tech.eu/companies/8D73EFB5-A809-4DCF-B178-8B5A2541E510), [growth](https://threedium.io/), [address](https://find-and-update.company-information.service.gov.uk/company/10881024), [presence](https://funding.tech.eu/companies/8D73EFB5-A809-4DCF-B178-8B5A2541E510) - **Throxy** (`throxy`): AI plus human outbound sales service that books meetings for companies selling into traditional industries. AI / Outbound Sales | Up and coming | Islington EC1V 2NX | founded 2023 | raised $6.2M | last round Seed, $6.2M | Companies House 15078234 | incorporated 2023-08-17 | 4 staff in filed accounts (period to 2025-08-31) | SIC 62090 | licensed visa sponsor | London HQ | Y Combinator X25 | backed by Base10 Partners, Circle & Co, GoHub Ventures, Palm Drive Capital, Y Combinator | near Old Street (146 m) | https://throxy.com | sources: [funding](https://throxy.com/resources/blog/throxy-raises-6-2m-to-crack-outbound-sales-into-traditional-industries), [growth](https://www.ycombinator.com/companies/throxy), [address](https://find-and-update.company-information.service.gov.uk/company/15078234), [presence](https://www.linkedin.com/company/throxy) - **thymia** (`thymia`): AI that detects health signals like fatigue, stress and depression from short voice samples. AI (also Health) / Voice Biomarkers | Up and coming | City of London EC2V 6DN | founded 2020 | Companies House 12609104 | incorporated 2020-05-18 | 16 staff in filed accounts (period to 2025-06-30) | SIC 62012 | licensed visa sponsor | London HQ | backed by Kodori Ventures, Calm/Storm Ventures, Entrepreneur First, Form Ventures, SyndicateRoom Access | near Mansion House (231 m) | https://thymia.ai | sources: [growth](https://www.thymia.ai/news), [address](https://thymia.ai), [presence](https://thymia.ai) - **Tracelight** (`tracelight`): AI spreadsheet modelling agent that builds financial models, valuations and due diligence analysis for finance and consulting teams. AI (also Fintech) / AI Financial Modelling | Up and coming | Hackney E2 8JF | founded 2024 | raised $3.6M | last round Seed, $3.6M, Aug 2025 | Companies House 15938877 | incorporated 2024-09-05 | 3 staff in filed accounts (period to 2025-08-31) | SIC 62012 | licensed visa sponsor | London HQ | backed by Chalfen Ventures, Acequia Capital, Entrepreneur First, Inovo | near Hoxton (150 m) | https://tracelight.ai | sources: [funding](https://www.uktech.news/ai/tracelight-raises-3m-to-bring-llms-to-financial-modelling-20250807), [growth](https://www.uktech.news/ai/tracelight-raises-3m-to-bring-llms-to-financial-modelling-20250807), [address](https://tracelight.ai/privacy-policy), [presence](https://tracelight.ai/privacy-policy) - **Tractable** (`tractable`): Computer vision AI that assesses car and property damage from photos to speed up insurance claims. AI (also Fintech) / Insurance Computer Vision | Well known | Camden WC2H 9JQ | founded 2014 | raised $185M | last round Series E, $65M, Jul 2023 | Companies House 09315523 | incorporated 2014-11-18 | 77 staff in filed accounts (period to 2025-12-31) | SIC 62012 | hiring 1 in London | licensed visa sponsor | London HQ | backed by Ignition Partners, SoftBank Vision Fund, Zetta Venture Partners, Georgian, Insight Partners, Plug and Play | near Covent Garden (208 m) | https://tractable.ai | sources: [funding](https://www.clay.com/dossier/tractable-funding), [growth](https://techcrunch.com/2023/07/18/tractable-snaps-up-65m-led-by-softbank-for-car-and-property-damage-appraisals-using-ai/), [address](https://find-and-update.company-information.service.gov.uk/company/09315523), [presence](https://tractable.ai/careers/) - **Trigger.dev** (`trigger-dev`): Open source platform for running AI agents and long background jobs in TypeScript. AI / Agent Infrastructure | Up and coming | Tower Hamlets E1 5LP | founded 2022 | raised $16M+ | last round Series A, $16M, Dec 2025 | Companies House 14441978 | incorporated 2022-10-25 | 5 staff in filed accounts (period to 2025-12-31) | SIC 62012 | hiring 1 in London | London team, no office | GitHub triggerdotdev | Y Combinator W23 | backed by Standard Capital, CTO Fund, Liquid 2 Ventures, Pioneer Fund, Rebel Fund, Wayfinder Ventures, Y Combinator | near Aldgate East (530 m) | https://trigger.dev | sources: [funding](https://trigger.dev/blog/series-a), [growth](https://trigger.dev/blog/series-a), [address](https://www.linkedin.com/company/triggerdotdev), [presence](https://jobs.ashbyhq.com/triggerdev) - **Trint** (`trint`): AI transcription and editing software that turns audio and video into searchable, quotable text for newsrooms and media teams. AI / Transcription | Up and coming | Hackney E2 8JF | founded 2014 | raised $7.8M | last round Series A, $4.5M, Apr 2019 | Companies House 09225083 | incorporated 2014-09-18 | SIC 62090 | licensed visa sponsor | London HQ | backed by Horizons Lab, TechNexus, The Associated Press | near Hoxton (150 m) | https://www.trint.com | sources: [funding](https://trint.com/blog/trint-raises-us-4-5m), [growth](https://www.trint.com), [address](https://www.trint.com), [presence](https://www.trint.com) - **Trumpet** (`trumpet`): AI-powered digital sales rooms where sellers and buyers share content, action plans and proposals to close deals. AI / Digital Sales Rooms | Up and coming | Southwark SE1 0DW | founded 2021 | raised £6.7M (~$8.5M) | Companies House 13785333 | incorporated 2021-12-06 | 25 staff in filed accounts (period to 2025-12-31) | SIC 62012 | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2026, #28 | backed by AlbionVC, Anamcara Capital, Lightbird Ventures, Triple Point Ventures | near Southwark (523 m) | https://www.sendtrumpet.com | sources: [funding](https://www.datocms-assets.com/60124/1774006698-sifted-100-uk-ireland-2026.pdf), [growth](https://www.sendtrumpet.com/blog-posts/trumpet-is-28-on-the-sifted-100-uk-ireland-2026), [address](https://www.sendtrumpet.com), [presence](https://startups.co.uk/startups-100/2025/trumpet) - **TurinTech AI** (`turintech-ai`): TurinTech builds Artemis, a multi-agent AI platform that optimises, validates and modernises code. AI / Code optimisation | Up and coming | City of London EC2M 2PF | raised $20M | last round Series A, $15M, announced Mar 2025 | Companies House 10318035 | incorporated 2016-08-08 | 16 staff in filed accounts (period to 2025-08-31) | SIC 62012, 62020, 62030, 72190 | licensed visa sponsor | London HQ | GitHub turintech | Conception X CX19 | backed by Oxford Capital, Circle Rock, IQ Capital | near Liverpool Street (201 m) | https://www.turintech.ai | sources: [funding](https://www.thesaasnews.com/news/turintech-raises-20-million-in-funding/), [growth](https://www.thesaasnews.com/news/turintech-raises-20-million-in-funding/), [address](https://find-and-update.company-information.service.gov.uk/company/10318035), [presence](https://www.thesaasnews.com/news/turintech-raises-20-million-in-funding/) - **Umony** (`umony`): Captures, archives and analyses financial firms' communications across mobile, chat, email, voice and video, using AI to flag misconduct. AI / Compliance | Up and coming | City of London EC4A 4AB | founded 2017 | last round Series A, $15M, Sep 2025 | Companies House 10988562 | incorporated 2017-09-29 | 18 staff in filed accounts (period to 2025-12-31) | SIC 58290, 62090 | licensed visa sponsor | London HQ | backed by Notion Capital, Crane Venture Partners, Seedcamp | near St. Paul's (479 m) | https://www.umony.com | sources: [funding](https://fintech.global/?p=216387), [growth](https://fintech.global/?p=216387), [address](https://www.umony.com/contact), [presence](https://fintech.global/?p=216387) - **Unitary** (`unitary`): AI virtual agents that log into existing tools to automate manual operations work in insurance, financial services, healthcare and marketplaces. AI / AI Virtual Agents | Up and coming | Camden WC1N 2PL | founded 2019 | last round Series A, $15M, Oct 2023 | Companies House 12044127 | incorporated 2019-06-11 | 13 staff in filed accounts (period to 2025-03-31) | SIC 62012 | hiring 5 in London | licensed visa sponsor | work model mixed (5 London job posts) | London HQ | backed by Creandum, Paladin Capital Group, Plural | near Russell Square (528 m) | https://unitary.ai | sources: [funding](https://www.unitary.ai/articles/unitary-raises-15m-series-a-to-keep-digital-communities-safe-by-classifying-the-internets-information), [growth](https://www.unitary.ai/articles/unitary-raises-15m-series-a-to-keep-digital-communities-safe-by-classifying-the-internets-information), [address](https://unitary.ai/privacy-policy), [presence](https://simplify.jobs/c/Unitary) - **UnlikelyAI** (`unlikelyai`): Neurosymbolic AI that gives precise, explainable yes-or-no decisions for banks, insurers and accountants. AI / Neurosymbolic AI | Up and coming | Camden WC1A 2SL | founded 2018 | Companies House 11445207 | incorporated 2018-07-03 | 39 staff in filed accounts (period to 2025-11-30) | SIC 62012 | hiring 1 in London | licensed visa sponsor | London HQ | on Tech Nation Future Fifty 2025 | backed by Amadeus Capital Partners, Octopus Ventures, Cambridge Innovation Capital, Metaplanet | near Holborn (269 m) | https://unlikely.ai | sources: [growth](https://unlikely.ai/about), [address](https://unlikely.ai/contact), [presence](https://www.linkedin.com/company/unlikely-ai) - **V7** (`v7`): AI agent platform (V7 Go) automating document-heavy work in finance, insurance and legal, plus data labelling tools. AI / Document AI agents | Up and coming | Westminster W1W 8TF | founded 2018 | raised $36M | last round Series A, $33M, Nov 2022 | Companies House 11499928 | incorporated 2018-08-03 | SIC 62012 | London HQ | GitHub v7labs | on Deloitte UK Technology Fast 50 2025, #43; Sifted 100 UK & Ireland 2024, #8; LinkedIn Top Startups UK 2023, #2 | backed by Radical Ventures, Temasek, Air Street Capital, Amadeus Capital Partners, Partech | near Oxford Circus (183 m) | https://www.v7labs.com | sources: [funding](https://uk.finance.yahoo.com/news/v7-snaps-33m-automate-training-152111006.html), [growth](https://uk.finance.yahoo.com/news/v7-snaps-33m-automate-training-152111006.html), [address](https://www.v7labs.com/contact), [presence](https://en.wikipedia.org/wiki/V7_(company)) - **VEED** (`veed`): Browser-based AI video creation and editing platform for generating, subtitling and branding videos without production skills. AI / AI Video Editing | Up and coming | Hackney EC2A 4LJ | founded 2018 | raised $35M | last round Series A, $35M, Feb 2022 | Companies House 11264311 | incorporated 2018-03-20 | SIC 59112, 62012 | licensed visa sponsor | London HQ | on LinkedIn Top Startups UK 2023, #18 | backed by Sequoia Capital | near Old Street (335 m) | https://www.veed.io | sources: [funding](https://www.veed.io/about), [growth](https://www.veed.io/about), [address](https://www.veed.io), [presence](https://www.veed.io) - **VivaCity** (`vivacity`): AI computer-vision sensors and signal control that give cities live multimodal traffic data and smarter junctions. AI / Traffic sensing | Up and coming | Hackney N1 6ED | founded 2015 | Companies House 09924516 | incorporated 2015-12-21 | 98 staff in filed accounts (period to 2024-12-31) | SIC 62090 | licensed visa sponsor | London HQ | backed by Mobeus, Downing Ventures, London Co-Investment Fund | near Old Street (394 m) | https://vivacitylabs.com | sources: [funding](https://tech.eu/2021/02/22/vivacity-labs-series-a/), [growth](https://vivacitylabs.com/), [address](https://vivacitylabs.com/about-us/contact/), [presence](https://vivacitylabs.com/about-us/contact/) - **Volta** (`volta`): AI infrastructure company that finances, builds and runs AI compute. Offices in London, Palo Alto and New York. AI / AI compute infrastructure | Well known | Camden W1T 4QJ | founded 2026 | raised $300M | last round Seed and Series A, $300M, Aug 2026 | Companies House 16953078 | incorporated 2026-01-09 | SIC 62030 | hiring 19 in London | licensed visa sponsor | work model hybrid (19 London job posts) | London HQ | backed by Altimeter Capital, Andreessen Horowitz, NVIDIA | near Goodge Street (159 m) | https://volta.com | sources: [funding](https://thenextweb.com/news/volta-ai-cloud-300m-nvidia-dell-2-4bn), [growth](https://thenextweb.com/news/volta-ai-cloud-300m-nvidia-dell-2-4bn), [address](https://api.ashbyhq.com/posting-api/job-board/volta), [presence](https://dealroom.co/companies/volta/) - **Vyntelligence** (`vyntelligence`): Agentic video intelligence platform that lets field workers and customers capture guided video to speed up jobs. AI / Field Video AI | Fastest growing | Hackney N1 7GU | founded 2013 | last round Series B, $30M, Nov 2025 | Companies House 08391456 | incorporated 2013-02-06 | 39 staff in filed accounts (period to 2025-03-31) | SIC 63990 | licensed visa sponsor | London HQ | backed by Blume Equity, Morgan Stanley Investment Management | near Old Street (645 m) | https://www.vyntelligence.com | sources: [growth](https://vyntelligence.com/blog/short-video-al-platform-vyntelligence-announces-significant-new-investment-to-fuel-us-expansion), [address](https://www.vyntelligence.com/privacy-policy), [presence](https://www.vyntelligence.com/privacy-policy) - **Wayve** (`wayve`): Builds end-to-end AI driving software that lets cars drive themselves without detailed maps. AI (also Deeptech) / Autonomous driving | Well known | Islington N7 9AG | founded 2017 | raised $2.5B | last round Series D, $1.2B, Feb 2026 | Companies House 10924127 | incorporated 2017-08-21 | SIC 72190 | hiring 55 in London | licensed visa sponsor | work model hybrid (24 London job posts) | London HQ | backed by Balderton Capital, Eclipse Ventures, SoftBank Group, SoftBank Vision Fund, Baillie Gifford, British Business Bank, Compound, D1 Capital Partners, firstminute capital, Icehouse Ventures, Linse Capital, Mercedes-Benz, Microsoft, Moore Strategic Ventures, Nissan, NVIDIA, Ocado Group, Ontario Teachers' Pension Plan, Schroders Capital, Stellantis, Uber, Virgin Group | near Caledonian Road & Barnsbury (614 m) | https://wayve.ai | sources: [funding](https://en.wikipedia.org/wiki/Wayve), [growth](https://finance.yahoo.com/news/wayve-raises-1-2bn-series-114646277.html), [address](https://wayve.ai/contact/), [presence](https://en.wikipedia.org/wiki/Wayve) - **Wonder Studios** (`wonder-studios`): AI-native studio making films, music videos and branded content with generative tools. AI / AI Film Studio | Up and coming | Hackney EC2A 4NE | founded 2024 | raised $15M+ | last round Seed, $12M, Oct 2025 | Companies House 16002564 | incorporated 2024-10-07 | 9 staff in filed accounts (period to 2025-12-31) | SIC 62012 | hiring 1 in London | licensed visa sponsor | London HQ | backed by Adobe Ventures, Atomico, LocalGlobe | near Old Street (321 m) | https://wonderstudios.com | sources: [funding](https://wonderstudios.com/about), [growth](https://wonderstudios.com/about), [address](https://find-and-update.company-information.service.gov.uk/company/16002564), [presence](https://find-and-update.company-information.service.gov.uk/company/16002564) - **Wondercraft** (`wondercraft`): AI studio that lets teams create on-brand videos, podcasts and audio from text using AI voices, music and visuals. AI / Generative AI Video | Up and coming | Camden WC2H 9JQ | founded 2023 | raised $3M | last round Seed, $3M, Jan 2024 | Companies House 15006694 | incorporated 2023-07-17 | SIC 47910 | London office, HQ elsewhere | Y Combinator S22 | backed by Y Combinator | near Covent Garden (208 m) | https://wondercraft.ai | sources: [funding](https://www.ycombinator.com/companies/wondercraft), [growth](https://wondercraft.ai/contact), [address](https://find-and-update.company-information.service.gov.uk/company/15006694), [presence](https://wondercraft.ai/contact) - **Xapien** (`xapien`): AI research platform that automates due diligence and background checks on people and companies for banks, law firms and corporates. AI / Due Diligence AI | Fastest growing | City of London EC2M 6UR | founded 2018 | last round Growth, $56M, Sep 2026 | Companies House 11241397 | incorporated 2018-03-08 | SIC 58290, 62012, 63110, 63990 | hiring 10 in London | work model hybrid (10 London job posts) | London HQ | on Sifted 100 UK & Ireland 2026, #78; Deloitte UK Technology Fast 50 2025, #15; Tech Nation Upscale 2024 | backed by Spectrum Equity, YFM Equity Partners | near Moorgate (99 m) | https://www.xapien.com | sources: [funding](https://xapien.com/news-and-events/xapien-secures-56-million-to-scale-dynamic-due-diligence-globally/), [growth](https://xapien.com/news-and-events/xapien-secures-56-million-to-scale-dynamic-due-diligence-globally/), [address](https://www.linkedin.com/company/xapien-ai), [presence](https://tech.eu/2024/07/17/ai-due-diligence-startup-bags-ps8m-and-says-it-will-benefit-from-londons-laundromat-status/) - **Zappi** (`zappi`): AI market research platform that lets brands test ads, product ideas and brand health with consumers and benchmark the results against historical data. AI / Consumer insights | Up and coming | Camden NW1 7JN | founded 2012 | last round $170M led by Sumeru Equity Partners, Dec 2022 | Companies House 08185247 | incorporated 2012-08-20 | SIC 73200 | licensed visa sponsor | London office, HQ elsewhere | backed by Sumeru Equity Partners | near Camden Town (285 m) | https://www.zappi.io | sources: [funding](https://builtin.com/articles/zappi-raises-170m-consumer-insights), [growth](https://www.zappi.io/web/news/zappi-wins-the-2025-asc-mrs-award-for-best-technology-innovation/), [address](https://www.zappi.io/web/contact/), [presence](https://www.zappi.io/web/contact/) ### Fintech (195) - **10x Banking** (`10x-banking`): Cloud core banking platform that lets banks such as Westpac and Chase UK launch products faster. Fintech / Core banking software | Fastest growing | Camden WC1V 6BX | founded 2016 | last round Equity and debt, £40M from AshGrove Capital, Aug 2026 | Companies House 10146101 | incorporated 2016-04-25 | SIC 62090 | London HQ | backed by AshGrove Capital | near Chancery Lane (61 m) | https://www.10xbanking.com | sources: [funding](https://www.10xbanking.com/news/new-investment-from-ashgrove-capital), [growth](https://www.10xbanking.com/news/new-investment-from-ashgrove-capital), [address](https://www.10xbanking.com/contact-us), [presence](https://builtin.com/company/10x-banking) - **9fin** (`9fin`): AI-powered data and analytics platform for debt and credit market professionals. Fintech / Credit Market Data | Well known | City of London EC2N 4AG | founded 2016 | raised $250M | last round Series C, $170M, Mar 2026 | Companies House 10451957 | incorporated 2016-10-28 | SIC 63990 | hiring 20 in London | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2026, #85; Tech Nation Future Fifty 2026 | backed by HarbourVest, CPP Investments, Highland Europe, Kintsugi, Redalpine, Seedcamp, Spark Capital | near Liverpool Street (270 m) | https://9fin.com | sources: [funding](https://www.prnewswire.com/news-releases/9fin-raises-170m-series-c-at-1-3b-valuation-to-scale-ai-platform-for-debt-markets-302729026.html), [growth](https://www.prnewswire.com/news-releases/9fin-raises-170m-series-c-at-1-3b-valuation-to-scale-ai-platform-for-debt-markets-302729026.html), [address](https://9fin.com/about), [presence](https://tech.eu/2026/03/31/london-headquartered-fintech-9fin-raises-170m-reaching-a-1-3bn-valuation/) - **Abound** (`abound`): Consumer lender that uses AI and open banking data to judge affordability and offer fairer loans. Fintech / Consumer Lending | Fastest growing | Tower Hamlets E1W 1AT | founded 2020 | last round Debt facility, GBP250M, Mar 2025 (Deutsche Bank) | Companies House 12472034 | incorporated 2020-02-19 | 81 staff in filed accounts (period to 2025-02-28) | SIC 62012, 64921 | hiring 8 in London | licensed visa sponsor | work model hybrid (8 London job posts) | London HQ | on Sifted 100 UK & Ireland 2026, #17; Tech Nation Future Fifty 2025 | backed by Informed Ventures, Salica Investments | near Tower Gateway (431 m) | https://www.getabound.com | sources: [funding](https://www.getabound.com/company/investors), [growth](https://businesscloud.co.uk/news/abound-revenue-hits-66-8m-as-profit-surges-25-fold/), [address](https://www.linkedin.com/company/getabound), [presence](https://www.getabound.com/) - **Adfin** (`adfin`): Payments and finance automation that helps small businesses get paid on time, moving into AI credit control. Fintech / SMB payments automation | Fastest growing | Hackney EC2A 4NA | founded 2024 | raised $30M+ | last round Series A, $18M, May 2026 | Companies House 15449959 | incorporated 2024-01-29 | 10 staff in filed accounts (period to 2025-12-31) | SIC 62012 | licensed visa sponsor | London HQ | backed by Index Ventures, Visionaries Club | near Old Street (321 m) | https://www.adfin.com | sources: [funding](https://fintech.global/2026/05/12/adfin-raises-18m-series-a-to-automate-business-finance/), [growth](https://fintech.global/2026/05/12/adfin-raises-18m-series-a-to-automate-business-finance/), [address](https://www.adfin.com/legal/privacy-policy), [presence](https://www.adfin.com/careers) - **Alfa Financial Software** (`alfa-financial-software`): Sells Alfa Systems, software that lenders use to run asset finance and leasing businesses. Fintech / Asset finance software | Well known | City of London EC2Y 9DT | founded 1990 | Companies House 10713517 | incorporated 2017-04-06 | SIC 62012, 62020 | licensed visa sponsor | London HQ | GitHub alfasoftware | near Moorgate (114 m) | https://www.alfasystems.com | sources: [growth](https://data.fca.org.uk/artefacts/NSM/RNS/e0392de5-f062-4aaf-a556-b73c8d70bfef.html), [address](https://www.alfasystems.com/about-us), [presence](https://www.alfasystems.com/about-us) - **Allica Bank** (`allica-bank`): Digital bank for established small and medium-sized businesses, offering accounts, savings and lending. Fintech / SME Banking | Well known | Islington EC2A 2DT | last round Series D, $155M, Feb 2026 | Companies House 07706156 | incorporated 2011-07-15 | SIC 64191 | licensed visa sponsor | London HQ | on Deloitte UK Technology Fast 50 2025, #7; Sifted 100 UK & Ireland 2024, #1; Tech Nation Future Fifty 2024; Deloitte UK Technology Fast 50 2024, #1; LinkedIn Top Startups UK 2024, #4; Deloitte UK Technology Fast 50 2023, #1 | backed by Ventura Capital, Blue Owl, GLG, Sona Asset Management, TCV | near Old Street (429 m) | https://www.allica.bank | sources: [funding](https://fintech.global/2026/02/25/uk-fintech-allica-bank-raises-155m-series-d/), [growth](https://fintech.global/2026/02/25/uk-fintech-allica-bank-raises-155m-series-d/), [address](https://www.allica.bank/), [presence](https://en.wikipedia.org/wiki/Allica_Bank) - **APEXX Global** (`apexx-global`): APEXX runs a payment orchestration platform that lets enterprise merchants route payments across providers through a single API. Fintech / Payment orchestration | Up and coming | City of London EC4A 4AD | founded 2016 | raised €40.4M (~$43.6M) | last round Strategic, up to $10M, Feb 2026 | Companies House 10131902 | licensed visa sponsor | London HQ | backed by Finch Capital | near St. Paul's (526 m) | https://apexx.global | sources: [funding](https://www.vestbee.com/insights/articles/top-european-funding-rounds-closed-in-february-2026), [growth](https://fintech.global/2026/02/06/apexx-global-raises-10m-to-scale-payment-orchestration/), [address](https://apexx.global/contact-us), [presence](https://apexx.global/contact-us) - **Apron** (`apron`): Payments platform that lets small businesses and accountants collect, approve and pay invoices in one place. Fintech / SME Payments | Fastest growing | City of London EC2M 3AB | founded 2021 | raised £42.7M (~$54.2M) | Companies House 13779960 | incorporated 2021-12-03 | SIC 62090 | hiring 1 in London | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2026, #3 | backed by Bessemer Venture Partners, Index Ventures | near Liverpool Street (405 m) | https://www.getapron.com | sources: [funding](https://www.datocms-assets.com/60124/1774006698-sifted-100-uk-ireland-2026.pdf), [growth](https://www.datocms-assets.com/60124/1774006698-sifted-100-uk-ireland-2026.pdf), [address](https://www.getapron.com), [presence](https://jobs.ashbyhq.com/apron/dfabb0eb-c00f-4f3e-a162-c42b174e79bf) - **Artificial Labs** (`artificial-labs`): Specialty insurance platform for brokers and underwriters, covering algorithmic underwriting and delegated authority. Fintech / Insurtech | Up and coming | City of London EC2R 8AE | founded 2013 | Companies House 08766928 | incorporated 2013-11-07 | 41 staff in filed accounts (period to 2024-12-31) | SIC 62090 | hiring 12 in London | licensed visa sponsor | work model hybrid (12 London job posts) | London HQ | near Bank (169 m) | https://artificial.io | sources: [growth](https://artificial.io), [address](https://artificial.io/contact), [presence](https://artificial.io/) - **Aspora** (`aspora`): Money transfer and banking app for the Indian diaspora, mainly used to send money home to India. Fintech / Remittances | Fastest growing | Hackney EC2A 3BX | raised $93M | last round Series B, €45.7M, May 2025 | Companies House NI065249 | incorporated 2007-06-15 | 12 staff in filed accounts (period to 2025-12-31) | SIC 64999, 69202, 70100, 70221 | licensed visa sponsor | London HQ | Y Combinator W22 | backed by Greylock, Hummingbird Ventures, Sequoia Capital, Quantum Light | near Shoreditch High Street (489 m) | https://www.aspora.com | sources: [funding](https://www.vestbee.com/blog/articles/aspora-secures-93-m), [growth](https://www.vestbee.com/blog/articles/aspora-secures-93-m), [address](https://www.aspora.com/legal/privacy-policy/aspora-bridge-privacy-policy), [presence](https://www.vestbee.com/blog/articles/aspora-secures-93-m) - **Atoa** (`atoa`): Payment gateway that lets UK businesses take Pay by Bank and card payments with lower fees and instant settlement. Fintech / Pay By Bank | Up and coming | Tower Hamlets E14 5EU | founded 2022 | Companies House 13910811 | incorporated 2022-02-11 | 10 staff in filed accounts (period to 2025-02-28) | SIC 63120 | London HQ | backed by Leo Capital, Passion Capital, Valar Ventures | near Canary Wharf (281 m) | https://paywithatoa.co.uk | sources: [growth](https://paywithatoa.co.uk/blog/atoa-secures-fca-authorisation/), [address](https://paywithatoa.co.uk/about-us/), [presence](https://paywithatoa.co.uk) - **Ayan** (`ayan`): Ayan offers Shariah-compliant car finance in the UK, buying the car and leasing it to customers for fixed monthly rentals with no interest. Fintech / Islamic car finance | Up and coming | Westminster W2 6BD | Companies House 15123809 | incorporated 2023-09-08 | 8 staff in filed accounts (period to 2025-12-31) | SIC 62090 | licensed visa sponsor | London HQ | near Paddington (451 m) | https://www.ayan.co.uk | sources: [funding](https://bebeez.eu/2026/09/17/uk-islamic-fintech-ayan-capital-secures-75-million-100-million-facility-originated-by-triple-point-as-it-builds-towards-a-halal-digital-bank/), [growth](https://bebeez.eu/2026/09/17/uk-islamic-fintech-ayan-capital-secures-75-million-100-million-facility-originated-by-triple-point-as-it-builds-towards-a-halal-digital-bank/), [address](https://www.ayan.co.uk), [presence](https://www.zawya.com/en/press-release/companies-news/triple-point-supports-ayan-capital-with-shariah-compliant-ijara-based-facility-of-up-to-75mln-590868) - **Balance** (`balance`): Accounting firm for small businesses where AI agents do the bookkeeping and qualified accountants sign off. Fintech (also AI) / AI Accounting | Up and coming | Islington EC1M 5RN | founded 2025 | raised $4.7M | Companies House 16998135 | incorporated 2026-01-29 | SIC 69201 | licensed visa sponsor | London HQ | Y Combinator W26 | backed by Y Combinator | near Farringdon (298 m) | https://www.getbalance.ai | sources: [funding](https://www.getbalance.ai/about), [growth](https://www.getbalance.ai/about), [address](https://www.getbalance.ai), [presence](https://www.getbalance.ai/about) - **Bank of London** (`bank-of-london`): Wholesale bank offering accounts, payments, clearing and agency banking to banks and fintechs. Fintech / Clearing Bank | Fastest growing | City of London EC3V 3QQ | founded 2021 | raised £150M (~$190.5M) | Companies House 12844788 | incorporated 2020-08-28 | SIC 64191 | London HQ | on Sifted 100 UK & Ireland 2026, #33 | backed by Mangrove Capital Partners | near Bank (250 m) | https://www.bankoflondon.com | sources: [funding](https://www.datocms-assets.com/60124/1774006698-sifted-100-uk-ireland-2026.pdf), [growth](https://www.datocms-assets.com/60124/1774006698-sifted-100-uk-ireland-2026.pdf), [address](https://www.bankoflondon.com), [presence](https://en.wikipedia.org/wiki/Bank_of_London_(clearing_bank)) - **Benford** (`benford`): Tech-led statutory audit firm running audits on its own platform, live in Norway and launching in the UK. Fintech / Audit Automation | Up and coming | Camden WC1A 2DA | raised $5.7M | last round Pre-seed, $5.7M, Sep 2026 | Companies House 17325156 | incorporated 2026-07-07 | SIC 64209 | licensed visa sponsor | London office, HQ elsewhere | backed by firstminute capital, Global Founders Capital, Sondo Capital | near Holborn (114 m) | https://benford.tech | sources: [funding](https://www.vcbacked.co/company/benford), [growth](https://www.vcbacked.co/company/benford), [address](https://benford.tech/locations), [presence](https://benford.tech/about) - **BMLL Technologies** (`bmll-technologies`): BMLL provides historical order book data and analytics for equities, ETFs, futures and options from 100+ trading venues. Fintech / Market data | Fastest growing | City of London EC3M 7AF | founded 2014 | last round $21M led by Optiver, Oct 2024 | Companies House 08988706 | incorporated 2014-04-09 | SIC 62012 | licensed visa sponsor | London HQ | backed by Optiver, CTC Venture Capital, FactSet, IQ Capital, Nasdaq Ventures, Snowflake Ventures | near Aldgate (415 m) | https://www.bmlltech.com | sources: [funding](https://tech.eu/2024/10/02/bmll-secures-21m-for-investment-analytics-platform/), [growth](https://tech.eu/2024/10/02/bmll-secures-21m-for-investment-analytics-platform/), [address](https://find-and-update.company-information.service.gov.uk/company/08988706), [presence](https://find-and-update.company-information.service.gov.uk/company/08988706) - **Bondaval** (`bondaval`): Technology-enabled trade credit insurance and non-payment guarantees that protect company receivables against buyer default. Fintech / Credit insurance | Up and coming | Southwark SE1 3XF | founded 2020 | last round Series A, $15M | Companies House 12629138 | incorporated 2020-05-28 | SIC 65120, 66220 | licensed visa sponsor | London HQ | backed by Talis Capital, Broadhaven Ventures, Expa, FJ Labs, Insurtech Gateway, Octopus Ventures, TrueSight Ventures | near London Bridge (591 m) | https://bondaval.com | sources: [funding](https://coverager.com/bondaval-raises-15-million/), [growth](https://bondaval.com), [address](https://bondaval.com), [presence](https://coverager.com/bondaval-raises-15-million/) - **Bound** (`bound`): Platform that helps businesses and VC funds see currency exposure and automate FX hedging. Fintech / FX risk management | Fastest growing | Westminster W1F 8FL | founded 2020 | raised $31M | last round Series A, $24.5M, Feb 2026 | Companies House 13036275 | incorporated 2020-11-23 | SIC 62012 | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2026, #69 | backed by AlbionVC, GoHub Ventures, Notion Capital | near Tottenham Court Road (244 m) | https://www.bound.co | sources: [funding](https://fintech.global/2026/02/05/bound-raises-24-5m-series-a-to-automate-fx-hedging/), [growth](https://tech.eu/2026/02/05/bound-secures-245m-series-a-to-expand-fx-hedging-tools), [address](https://www.bound.co), [presence](https://fintech.global/2026/02/05/bound-raises-24-5m-series-a-to-automate-fx-hedging/) - **Bud Financial** (`bud-financial`): AI platform that cleans and enriches bank transaction data for personalisation, lending and customer insight. Fintech (also AI) / Transaction data AI | Up and coming | Westminster W1W 5PF | raised $100M | last round Series B, $80M, Jun 2022 | Companies House 09651629 | incorporated 2015-06-23 | 65 staff in filed accounts (period to 2025-11-30) | SIC 63990 | licensed visa sponsor | London HQ | backed by TDR Capital, ANZ, Goldman Sachs, HSBC, Outward VC | near Great Portland Street (244 m) | https://www.thisisbud.com | sources: [funding](https://www.thisisbud.com/en-gb/blog/bud-raises-80m-to-scale-its-transaction-intelligence-apis), [growth](https://www.thisisbud.com/en-gb/company/about), [address](https://www.thisisbud.com/en-gb/legal/privacy-policy), [presence](https://www.thisisbud.com/en-gb/legal/privacy-policy) - **Bumper** (`bumper`): Bumper lets drivers split the cost of car repairs, servicing and parts into interest-free monthly payments through dealers and garages. Fintech / Car repair financing | Up and coming | Hammersmith and Fulham W6 0NB | founded 2014 | last round Series B extension, £8M, Aug 2025 | Companies House 08576711 | incorporated 2013-06-20 | SIC 64999 | hiring 1 in London | licensed visa sponsor | London office, HQ elsewhere | on Sifted 100 UK & Ireland 2024, #62; Tech Nation Future Fifty 2024 | backed by Autotech Ventures, InMotion Ventures, Porsche Ventures, Shell Ventures, Suzuki Global Ventures | near Hammersmith (224 m) | https://www.bumper.co/ | sources: [funding](https://www.bumper.co/blog/bumper-raises-8-million-series-b-extension), [growth](https://www.bumper.co/blog/bumper-raises-8-million-series-b-extension), [address](https://www.bumper.co/about), [presence](https://www.bumper.co/about) - **Capi Money** (`capi-money`): Cross-border payments platform helping importers in emerging markets pay their overseas suppliers. Fintech / Cross-border Payments | Fastest growing | Islington EC1V 2NX | founded 2023 | raised £25.6M (~$32.5M) | Companies House 15031811 | incorporated 2023-07-27 | 19 staff in filed accounts (period to 2025-12-31) | SIC 64999, 66190 | licensed visa sponsor | London HQ | Y Combinator S23 | on Sifted 100 UK & Ireland 2026, #5; Tech Nation Upscale 2025 | backed by Creandum, firstminute capital, Unpopular Ventures, Y Combinator | near Old Street (146 m) | https://www.capimoney.com | sources: [funding](https://www.datocms-assets.com/60124/1774006698-sifted-100-uk-ireland-2026.pdf), [growth](https://www.datocms-assets.com/60124/1774006698-sifted-100-uk-ireland-2026.pdf), [address](https://find-and-update.company-information.service.gov.uk/company/15031811), [presence](https://find-and-update.company-information.service.gov.uk/company/15031811) - **Capital on Tap** (`capital-on-tap`): Business credit cards and spend management for small businesses in the UK and US. Fintech / SME Credit Cards | Well known | Islington EC1Y 8LZ | Companies House 07959823 | incorporated 2012-02-22 | SIC 64999 | hiring 16 in London | licensed visa sponsor | London HQ | near Old Street (383 m) | https://www.capitalontap.com | sources: [growth](https://www.capitalontap.com/en/company/careers/), [address](https://find-and-update.company-information.service.gov.uk/company/09867706), [presence](https://dealroom.co/companies/capital-on-tap/) - **Capital.com** (`capital-com`): Capital.com is an online trading platform for CFDs and other financial instruments. Fintech / Online trading | Well known | Westminster SW1H 0BF | founded 2016 | Companies House 10506220 | incorporated 2016-12-01 | 30 staff in filed accounts (period to 2025-12-31) | SIC 64999 | licensed visa sponsor | London office, HQ elsewhere | near St. James's Park (99 m) | https://capital.com | sources: [growth](https://capital.com/en-gb/press/capital-com-reports-656-billion-in-client-trading-volumes-in-q1-2025), [address](https://capital.com/en-gb/about-us/our-offices), [presence](https://capital.com/en-au/press/capital-com-announces-new-uk-headquarters-in-london-st-james) - **Carmoola** (`carmoola`): App-based car finance lender that gives buyers a budget before they shop. Fintech / Car Finance | Up and coming | Camden NW1 8HS | founded 2020 | last round Equity, GBP15.5M, Jan 2024 | Companies House 12992987 | incorporated 2020-11-03 | SIC 64921 | hiring 4 in London | work model hybrid (4 London job posts) | London HQ | on Sifted 100 UK & Ireland 2026, #66; Tech Nation Future Fifty 2025; Tech Nation Upscale 2024 | backed by AlleyCorp, InMotion Ventures, QED Investors, u.ventures, VentureFriends | near Chalk Farm (271 m) | https://www.carmoola.co.uk | sources: [funding](https://fintech.global/2024/01/16/uk-fintech-carmoola-raises-15-5m-to-transform-car-financing/), [growth](https://www.carmoola.co.uk/news/carmoola-secures-300m-abs-debt-facility), [address](https://www.carmoola.co.uk), [presence](https://www.carmoola.co.uk) - **Checkboard** (`checkboard`): Client onboarding and verification platform covering identity, AML checks, proof of funds and payments for regulated firms. Fintech / Regtech | Fastest growing | City of London EC2M 5QQ | founded 2019 | raised $9.58M | last round Series A, $8.5M, Jul 2026 | Companies House 12243866 | incorporated 2019-10-04 | SIC 62090 | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2026, #20 | near Moorgate (143 m) | https://www.checkboard.com | sources: [funding](https://www.cbinsights.com/company/checkboard/financials), [growth](https://www.datocms-assets.com/60124/1774006698-sifted-100-uk-ireland-2026.pdf), [address](https://www.checkboard.com), [presence](https://www.checkboard.com) - **Checkout.com** (`checkout-com`): Online payment processing for large merchants and enterprises around the world. Fintech / Payments | Well known | Hackney N1 7BQ | founded 2012 | raised $1.8B | last round Series D, $1B, Jan 2022 | Companies House 08037323 | incorporated 2012-04-19 | SIC 64999 | licensed visa sponsor | London HQ | backed by DST Global, Insight Partners, Altimeter Capital, Dragoneer, Franklin Templeton, GIC, Oxford Endowment Fund, Qatar Investment Authority, Tiger Global | near Old Street (535 m) | https://www.checkout.com | sources: [funding](https://www.fintechfutures.com/venture-capital-funding/checkout-com-secures-bumper-1bn-series-d-round-at-40bn-valuation-to-boost-us-growth), [growth](https://en.wikipedia.org/wiki/Checkout.com), [address](https://find-and-update.company-information.service.gov.uk/company/08037323), [presence](https://en.wikipedia.org/wiki/Checkout.com) - **Chip** (`chip`): App for saving and investing, offering savings accounts, cash ISAs and investment funds. Fintech / Savings and investing | Fastest growing | Hackney E1 6HU | founded 2017 | last round Late VC, $22.5M, Sep 2025 | Companies House 10113174 | incorporated 2016-04-08 | SIC 64999 | hiring 10 in London | licensed visa sponsor | work model hybrid (10 London job posts) | London HQ | on Sifted 100 UK & Ireland 2026, #26 | backed by Channel 5 Ventures | near Shoreditch High Street (195 m) | https://www.getchip.uk | sources: [funding](https://app.welcometothejungle.com/companies/Chip), [growth](https://www.getchip.uk/about), [address](https://app.welcometothejungle.com/companies/Chip), [presence](https://craft.co/getchip) - **ClaimSorted** (`claimsorted`): AI-first third party administrator that handles insurance claims for carriers and MGAs. Fintech / Insurtech Claims | Up and coming | Islington EC1V 2NX | founded 2024 | raised $13.3M | last round $13.3M, Oct 2025 | Companies House 15848796 | incorporated 2024-07-19 | 15 staff in filed accounts (period to 2025-12-31) | SIC 62090 | hiring 4 in London | licensed visa sponsor | work model on-site (4 London job posts) | London team, no office | Y Combinator S24 | backed by Y Combinator | near Old Street (146 m) | https://www.claimsorted.com | sources: [funding](https://www.ycombinator.com/companies/claimsorted), [growth](https://www.ycombinator.com/companies/claimsorted), [address](https://find-and-update.company-information.service.gov.uk/company/15848796), [presence](https://www.claimsorted.com) - **Clear Junction** (`clear-junction`): Payments infrastructure that gives banks, EMIs and other licensed financial firms GBP and EUR accounts, virtual IBANs and payment rails through one API. Fintech / Payments infrastructure | Up and coming | Westminster W1W 5PF | founded 2016 | Companies House 10266827 | incorporated 2016-07-07 | SIC 64999 | hiring 2 in London | licensed visa sponsor | work model on-site (2 London job posts) | London HQ | near Great Portland Street (244 m) | https://clearjunction.com | sources: [growth](https://thefintechtimes.com/clear-junction-appoints-teresa-cameron-as-group-chief-executive-officer/), [address](https://clearjunction.com/), [presence](https://builtinlondon.uk/job/office-manager/10393821) - **ClearBank** (`clearbank`): Clearing bank giving fintechs and banks UK payments access, accounts and embedded banking. Fintech / Banking Infrastructure | Well known | City of London EC2A 2EW | founded 2015 | Companies House 09736376 | incorporated 2015-08-17 | SIC 64191 | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2024, #38; Deloitte UK Technology Fast 50 2024, #37; Deloitte UK Technology Fast 50 2023, #27 | backed by Apax Digital, CFFI UK Ventures, PPF Financial Holdings | near Liverpool Street (409 m) | https://clear.bank | sources: [growth](https://clear.bank/learn/news/clearbank-delivers-third-consecutive-year-of-uk-profitability-as-revenue-grows-34-and-payment-volumes-jump-57), [address](https://clear.bank/), [presence](https://clear.bank/learn/news/clearbank-moves-into-new-london-hq-as-it-reaches-18bn-in-deposits-held) - **ClearScore** (`clearscore`): Free credit scores and reports, plus a marketplace that matches users to loans and cards. Fintech / Credit marketplace | Well known | Lambeth SE11 5JH | founded 2015 | Companies House 09221862 | incorporated 2014-09-17 | SIC 82912 | licensed visa sponsor | London HQ | backed by Invus, Lead Edge Capital, QED Investors | near Vauxhall (346 m) | https://www.clearscore.com | sources: [growth](https://en.wikipedia.org/wiki/ClearScore), [address](https://www.datanyze.com/companies/clearscore/414999578), [presence](https://en.wikipedia.org/wiki/ClearScore) - **Cleo** (`cleo`): AI money app and chatbot that helps people budget, save and manage their spending. Fintech (also AI) / AI Money Assistant | Well known | Islington EC2A 1PX | founded 2015 | raised $176M | last round Series C, $80M, Jun 2022 | Companies House 09864205 | incorporated 2015-11-09 | SIC 63990 | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2024, #34; Tech Nation Future Fifty 2024; Deloitte UK Technology Fast 50 2023, #16 | backed by EQT Ventures, Sofina, Balderton Capital, BlueYard Capital, Brevan Howard Digital, CMT Digital, Coinbase Ventures, Ethereal Ventures, FinTech Collective, Frontline Ventures, LocalGlobe, Redbus Ventures, SBI | near Moorgate (268 m) | https://web.meetcleo.com | sources: [funding](https://multiples.vc/private-comps/cleo), [growth](https://phoenixcourt.vc/news/voices-that-matter-cleo-serving-up-smart-money-decisions-with-ai), [address](https://find-and-update.company-information.service.gov.uk/company/09864205), [presence](https://find-and-update.company-information.service.gov.uk/company/09864205) - **CMC Markets** (`cmc-markets`): Online trading and investing platform offering CFDs, spread betting, forex and share dealing to retail and institutional clients, plus white-label trading technology for partners. Fintech / Online trading | Well known | City of London EC3A 7BX | founded 1989 | Companies House 05145017 | incorporated 2004-06-03 | SIC 64999 | licensed visa sponsor | London HQ | near Aldgate (204 m) | https://www.cmcmarkets.com | sources: [growth](https://www.reveliolabs.com/companies/cmc-markets/employees/), [address](https://www.cmcmarkets.com/en-gb/contact-us), [presence](https://www.cmcmarkets.com/group/about-us) - **Codat** (`codat`): APIs linking small business accounting and banking data to banks and lenders for faster credit and advice. Fintech / Business data APIs | Up and coming | City of London EC1A 9PN | last round Series C, $100M, led by J.P. Morgan Growth Equity, Jun 2022 | Companies House 10480375 | incorporated 2016-11-15 | SIC 62090 | hiring 2 in London | licensed visa sponsor | work model hybrid (2 London job posts) | London HQ | on Sifted 100 UK & Ireland 2024, #67 | backed by J.P. Morgan Growth Equity, Tiger Global, American Express Ventures, Canapi Ventures, Index Ventures, PayPal Ventures, Plaid, Shopify | near Barbican (87 m) | https://codat.io | sources: [funding](https://www.americanbanker.com/articles/jpmorgan-backs-software-startup-codat-at-825-million-valuation), [growth](https://www.americanbanker.com/articles/jpmorgan-backs-software-startup-codat-at-825-million-valuation), [address](https://codat.io/contact/), [presence](https://www.cbinsights.com/company/codat) - **ComplyAdvantage** (`complyadvantage`): AI platform that screens customers and transactions for money laundering, sanctions and fraud risk. Fintech / AML Regtech | Well known | City of London EC4A 1EN | founded 2014 | raised $108M | last round Series C extension, $70M total, May 2021 | Companies House 08964733 | incorporated 2014-03-28 | SIC 62090 | hiring 6 in London | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2024, #90 | backed by Ontario Teachers' Pension Plan, Balderton Capital, Index Ventures | near Chancery Lane (197 m) | https://complyadvantage.com | sources: [funding](https://complyadvantage.com/press-media/complyadvantage-series-c-funding/), [growth](https://www.linkedin.com/company/complyadvantage), [address](https://complyadvantage.com/contact-us/), [presence](https://builtinlondon.uk/company/complyadvantage) - **Condukt** (`condukt`): Agentic compliance platform that automates know-your-business checks and continuously monitors business customers for financial services firms. Fintech (also AI) / KYB compliance | Up and coming | Westminster W1B 4HB | founded 2023 | raised $10M | last round Seed, $10M, Nov 2025 | Companies House 14526763 | incorporated 2022-12-07 | 6 staff in filed accounts (period to 2024-12-31) | SIC 62090 | hiring 3 in London | licensed visa sponsor | work model hybrid (3 London job posts) | London HQ | backed by Lightspeed Venture Partners, MMC Ventures, Cocoa Ventures | near Oxford Circus (231 m) | https://condukt.co | sources: [funding](https://tech.eu/2025/11/18/condukt-emerges-from-stealth-with-10m-to-power-next-generation-compliance/), [growth](https://tech.eu/2025/11/18/condukt-emerges-from-stealth-with-10m-to-power-next-generation-compliance/), [address](https://find-and-update.company-information.service.gov.uk/company/14526763), [presence](https://tech.eu/2025/11/18/condukt-emerges-from-stealth-with-10m-to-power-next-generation-compliance/) - **Covecta** (`covecta`): AI agents that help banks and lenders speed up commercial lending and credit work. Fintech (also AI) / AI for commercial lending | Up and coming | Southwark SE1 3LJ | founded 2023 | raised $6.5M | last round Seed, $6.5M, Sep 2025 | Companies House 15146790 | incorporated 2023-09-19 | 5 staff in filed accounts (period to 2025-09-30) | SIC 62020, 62090, 63110, 74909 | licensed visa sponsor | London HQ | backed by Salesforce Ventures | near London Bridge (748 m) | https://www.covecta.io | sources: [funding](https://www.covecta.io/post/covecta-raises-6-5-million-to-redefine-how-financial-services-teams-operate), [growth](https://www.covecta.io/post/covecta-raises-6-5-million-to-redefine-how-financial-services-teams-operate), [address](https://www.covecta.io/contact), [presence](https://www.fintechfutures.com/ai-in-fintech/new-uk-fintech-covecta-launches-configurable-ai-platform) - **Creditspring** (`creditspring`): Subscription credit service giving UK members interest-free loans for a fixed membership fee instead of interest. Fintech / Consumer Credit | Fastest growing | Westminster W1F 0UW | founded 2016 | Companies House 10522518 | incorporated 2016-12-13 | SIC 64921 | hiring 5 in London | licensed visa sponsor | work model hybrid (5 London job posts) | London HQ | on Deloitte UK Technology Fast 50 2025, #26 | backed by Monomyth Group | near Tottenham Court Road (369 m) | https://www.creditspring.co.uk | sources: [growth](https://www.fast50.co.uk/fast50/winners/2025/), [address](https://app.welcometothejungle.com/companies/Creditspring), [presence](https://www.fintechfutures.com/fintech-innovation/creditspring-raises-48m-to-improve-financial-stability-across-uk) - **Crezco** (`crezco`): Open banking API for account-to-account business payments, embedded in platforms such as Xero. Fintech / B2B Payments API | Up and coming | Westminster SW1W 9SH | founded 2020 | last round £9.6M, Nov 2023 | Companies House 11752182 | incorporated 2019-01-07 | 36 staff in filed accounts (period to 2025-12-31) | SIC 62012 | licensed visa sponsor | London HQ | backed by 13books Capital, MMC Ventures | near Victoria (353 m) | https://www.crezco.com | sources: [funding](https://www.uktech.news/fintech/open-banking-b2b-payments-crezco-20231123), [growth](https://www.uktech.news/fintech/open-banking-b2b-payments-crezco-20231123), [address](https://www.crezco.com/contact), [presence](https://www.crezco.com/contact) - **Cuvva** (`cuvva`): Cuvva sells temporary and flexible monthly car insurance through a mobile app. Fintech / Insurtech | Up and coming | Islington EC1R 0NA | founded 2014 | last round Venture round, £15M | Companies House 08907985 | incorporated 2014-02-24 | SIC 66220 | licensed visa sponsor | London HQ | backed by Breega, Digital Horizon Ventures, LocalGlobe, RTP Global, Seedcamp, Techstars Ventures, Tekton Ventures | near Farringdon (270 m) | https://www.cuvva.com | sources: [funding](https://coverager.com/cuvva-raises-15-million/), [growth](https://insurance-edge.net/2025/06/27/cuvva-sees-record-breaking-growth/), [address](https://find-and-update.company-information.service.gov.uk/company/08907985), [presence](https://coverager.com/cuvva-raises-15-million/) - **Diligent AI** (`diligent-ai`): AI agents that automate KYC and AML compliance reviews for banks and fintechs. Fintech (also AI) / AI Compliance | Up and coming | Southwark SE1 9PG | founded 2023 | raised $2.5M | last round Seed, $2.5M, Mar 2026 | Companies House 16354286 | incorporated 2025-03-31 | SIC 62012 | London HQ | Y Combinator S23 | backed by Speedinvest, Shapers, Y Combinator | near Blackfriars (334 m) | https://www.godiligent.ai | sources: [funding](https://tech.eu/2026/03/04/diligent-ai-raises-25m-to-support-kyc-and-aml-teams-with-ai-agents/), [growth](https://tech.eu/2026/03/04/diligent-ai-raises-25m-to-support-kyc-and-aml-teams-with-ai-agents/), [address](https://www.godiligent.ai/privacy-policy), [presence](https://www.godiligent.ai/privacy-policy) - **Dojo** (`dojo`): Card machines and payment processing for UK and European restaurants, shops and other in-person businesses. Fintech / Card Payments | Well known | Westminster W2 1DG | founded 2008 | raised $190M | last round Growth equity, $190M, May 2025 | Companies House 06730690 | incorporated 2008-10-22 | SIC 64999 | hiring 22 in London | licensed visa sponsor | London HQ | backed by Vitruvian Partners | near Paddington (264 m) | https://dojo.tech | sources: [funding](https://www.aziendabanca.it/notizie/fintech-insurtech/dojo-aumento-capitale-190-milioni-vitruvian-partners), [growth](https://builtin.com/company/dojo/jobs), [address](https://dojo.tech/contact), [presence](https://www.cbinsights.com/company/dojo-2) - **Duco** (`duco`): SaaS platform that automates data reconciliation and controls for banks, asset managers and insurers. Fintech / Data reconciliation | Up and coming | Islington EC1M 7AN | Companies House 05686389 | incorporated 2006-01-24 | 85 staff in filed accounts (period to 2025-03-31) | SIC 62012 | hiring 5 in London | licensed visa sponsor | London HQ | backed by Euclid Opportunities | near Barbican (290 m) | https://du.co | sources: [growth](https://fintech.global/2025/12/19/duco-partners-with-phoenix-group-to-modernise-reconciliations/), [address](https://du.co/contact), [presence](https://www.nordiccapital.com/insights/press-releases/nordic-capital-invests-in-no-code-data-automation-leader-duco/) - **Ebury** (`ebury`): Cross-border payments, FX risk management and trade finance for businesses, majority-owned by Santander. Fintech / B2B FX and payments | Well known | Westminster SW1E 5JL | founded 2009 | last round Funding package led by Centerbridge Partners, $748.1M, H1 2026 | Companies House 07086058 | incorporated 2009-11-25 | SIC 64205 | hiring 21 in London | licensed visa sponsor | London HQ | backed by Centerbridge Partners, 83North, Santander, Vitruvian Partners | near Victoria (274 m) | https://ebury.com | sources: [funding](https://fintech.global/2026/08/17/uk-firms-dominated-the-european-fintech-market-attracting-six-of-the-top-10-deals-in-h1-2026/), [growth](https://fintech.global/2026/08/17/uk-firms-dominated-the-european-fintech-market-attracting-six-of-the-top-10-deals-in-h1-2026/), [address](https://job-boards.eu.greenhouse.io/ebury/jobs/4955283101), [presence](https://www.linkedin.com/company/ebury) - **Ecommpay** (`ecommpay`): Payment service provider that lets businesses accept card and local payment methods worldwide through its own gateway, acquiring and processing platform. Fintech / Payments | Well known | Islington EC1V 9BW | founded 2012 | Companies House 08580802 | incorporated 2013-06-24 | 194 staff in filed accounts (period to 2025-06-30) | SIC 64999 | licensed visa sponsor | London HQ | near Old Street (243 m) | https://ecommpay.com | sources: [growth](https://ecommpay.com/about-us/), [address](https://ecommpay.com/about-us/), [presence](https://cfotech.co.uk/story/ecommpay-recognised-among-cnbc-s-top-uk-fintechs-list) - **Emma** (`emma`): Budgeting and money management app that tracks spending, subscriptions and savings across bank accounts. Fintech / Personal Finance App | Up and coming | Hackney N1 6DZ | founded 2017 | Companies House 10578464 | incorporated 2017-01-23 | 14 staff in filed accounts (period to 2025-01-31) | SIC 62090 | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2026, #96 | backed by Kintsugi, Tiny VC | near Old Street (144 m) | https://emma-app.com | sources: [growth](https://emma-app.com/blog/we-are-crowdfunding), [address](https://emma-app.com), [presence](https://siliconcanals.com/london-personal-finance-management-app-emma-funding/) - **Fero** (`fero`): Formerly Ferovinum. Platform giving drinks producers inventory-backed working capital, trading tools and global logistics. Fintech / Inventory Finance | Up and coming | Westminster W1F 7BU | founded 2018 | Companies House 11276611 | incorporated 2018-03-26 | 25 staff in filed accounts (period to 2025-03-31) | SIC 46342 | licensed visa sponsor | London HQ | near Oxford Circus (311 m) | https://ferodrinks.com | sources: [growth](https://ferodrinks.com/posts/fero-surpasses-1-billion-in-inventory-traded-as-drinks-industry-new-operating-model-reaches-milestone), [address](https://ferodrinks.com/contact-us), [presence](https://startuprise.co.uk/ferovinum-raises-17-5-mn-series-a-round-funding/) - **Finastra** (`finastra`): Finastra sells software that banks and lenders use for lending, payments, treasury and core banking. Fintech / Banking software | Well known | Westminster W2 6BD | Companies House 01360027 | incorporated 1978-03-29 | SIC 58290 | London HQ | near Paddington (451 m) | https://www.finastra.com | sources: [growth](https://en.wikipedia.org/wiki/Finastra), [address](https://find-and-update.company-information.service.gov.uk/company/01360027), [presence](https://www.finastra.com/) - **Finbourne Technology** (`finbourne-technology`): Cloud data management platform that gives asset managers and banks a consolidated view of their investment data. Fintech / Investment data | Up and coming | City of London EC4V 5ER | founded 2016 | last round Series B, £55M, Jun 2024 | Companies House 10539696 | incorporated 2016-12-23 | SIC 62012 | licensed visa sponsor | London HQ | backed by AVP, Highland Europe | near St. Paul's (233 m) | https://www.finbourne.com | sources: [funding](https://fintech.global/2024/06/18/london-based-finbourne-raises-55m-for-investment-data-management-expansion/), [growth](https://fintech.global/2024/06/18/london-based-finbourne-raises-55m-for-investment-data-management-expansion/), [address](https://www.finbourne.com/contact/), [presence](https://www.finbourne.com/contact/) - **Finster AI** (`finster-ai`): AI-native research and analysis platform for investment banks and asset managers. Fintech (also AI) / Financial research AI | Fastest growing | Camden NW1 2DA | founded 2023 | raised $15M | last round Series B, undisclosed, Aug 2026 (UBS, FactSet) | Companies House 15250054 | incorporated 2023-10-31 | 15 staff in filed accounts (period to 2025-12-31) | SIC 82990 | licensed visa sponsor | London HQ | backed by FinTech Collective, Peak XV Partners, Hoxton Ventures | near Euston Square (55 m) | https://finster.ai | sources: [funding](https://fintech.global/2025/10/21/finster-ai-raises-15m-to-transform-financial-intelligence/), [growth](https://innolope.com/pulse/funding/6a21ee02ad395cc135adc9ee), [address](https://www.linkedin.com/company/finster-ai), [presence](https://www.linkedin.com/company/finster-ai) - **FintechOS** (`fintechos`): Software layer that lets banks and insurers design and launch financial products without replacing their core systems. Fintech / Banking software | Up and coming | Hackney EC2A 2AP | raised $150M+ | last round Equity and debt, $28M, Sep 2026 | Companies House 11857916 | incorporated 2019-03-04 | 19 staff in filed accounts (period to 2025-12-31) | SIC 62020 | licensed visa sponsor | London HQ | backed by Bek Ventures, Cipio Partners, IFC, Molten Ventures | near Liverpool Street (430 m) | https://fintechos.com | sources: [funding](https://tech.eu/2026/09/21/fintechos-raises-28m-in-equity-and-debt/), [growth](https://tech.eu/2026/09/21/fintechos-raises-28m-in-equity-and-debt/), [address](https://find-and-update.company-information.service.gov.uk/company/11857916), [presence](https://tech.eu/2026/09/21/fintechos-raises-28m-in-equity-and-debt/) - **Flagright** (`flagright`): AI platform for financial crime compliance: transaction monitoring, screening, risk scoring and case management. Fintech / AML Compliance | Fastest growing | Westminster W1W 5PF | founded 2021 | last round Series A, $12.5M, Jun 2026 | Companies House 16218625 | incorporated 2025-01-30 | 4 staff in filed accounts (period to 2025-12-31) | SIC 62012 | hiring 4 in London | work model hybrid (4 London job posts) | London HQ | Y Combinator W22 | on Sifted 100 UK & Ireland 2026, #67 | backed by Frontline Ventures, Infinity Ventures, Moonfire Ventures, Sella, Y Combinator | near Great Portland Street (244 m) | https://www.flagright.com | sources: [funding](https://fintechnews.sg/133186/regtech/flagright-series-a-funding/), [growth](https://www.datocms-assets.com/60124/1774006698-sifted-100-uk-ireland-2026.pdf), [address](https://find-and-update.company-information.service.gov.uk/company/16218625), [presence](https://find-and-update.company-information.service.gov.uk/company/16218625) - **Flagstone** (`flagstone`): Savings platform letting people and businesses hold cash across hundreds of accounts from 65+ banks in one place. Fintech / Cash savings platform | Up and coming | Westminster SW1Y 4EL | founded 2013 | raised £149M (~$189.2M) | last round £108M equity from Estancia Capital Partners, closed Jun 2024 | Companies House 08528880 | incorporated 2013-05-14 | 321 staff in filed accounts (period to 2025-12-31) | SIC 64999 | hiring 9 in London | licensed visa sponsor | work model hybrid (8 London job posts) | London HQ | on Deloitte UK Technology Fast 50 2025, #36; Deloitte UK Technology Fast 50 2024, #42 | backed by Estancia Capital Partners | near Piccadilly Circus (152 m) | https://www.flagstoneim.com | sources: [funding](https://www.flagstoneim.com/about), [growth](https://ifamagazine.com/cash-platform-flagstone-posts-2024-revs-up-46-as-customers-make-500m-interest/), [address](https://www.flagstoneim.com/contact), [presence](https://www.flagstoneim.com/about-us) - **Flow Global** (`flow-global`): Credit scoring, disbursement and collections tech that lets lenders give fast working capital to small businesses in emerging markets. Fintech / SME Lending Infrastructure | Up and coming | Southwark SE1 1DN | founded 2018 | Companies House 11511535 | incorporated 2018-08-10 | 4 staff in filed accounts (period to 2024-12-31) | SIC 62020 | London HQ | on Deloitte UK Technology Fast 50 2025, #39; Deloitte UK Technology Fast 50 2024, #44 | backed by BlackWood Ventures, Verdant Capital | near Borough (474 m) | https://flowglobal.net | sources: [growth](https://www.fast50.co.uk/fast50/winners/2025/), [address](https://flowglobal.net), [presence](https://flowglobal.net) - **Fnality International** (`fnality-international`): Bank-owned payment system that settles wholesale payments on a blockchain, backed 1:1 by central bank money. Fintech (also Crypto) / DLT Settlement | Fastest growing | Hackney EC2A 4DP | founded 2019 | raised $136M+ | last round Series C, $136M, Sep 2025 | Companies House 11954089 | incorporated 2019-04-18 | SIC 64999 | licensed visa sponsor | London HQ | backed by Bank of America, Citi, KBC Group, Temasek, Tradeweb, WisdomTree, Banco Santander, Barclays, BNP Paribas, DTCC, Euroclear, Goldman Sachs, ING, Nasdaq Ventures, State Street, UBS | near Old Street (390 m) | https://fnality.com | sources: [funding](https://fnality.com/news/fnality-raises-136-million-in-series-c-funding), [growth](https://fnality.com/news), [address](https://fnality.com/), [presence](https://builtinlondon.uk/company/fnality-international) - **FNZ** (`fnz`): Wealth management platform providing technology and administration infrastructure to banks, insurers and asset managers. Fintech / Wealth Platform | Well known | City of London EC2M 3TP | last round Equity, $1.4B, Feb 2022 | Companies House 05435760 | incorporated 2005-04-26 | SIC 64209 | London HQ | backed by CPP Investments, Motive Partners | near Liverpool Street (188 m) | https://www.fnz.com | sources: [funding](https://www.goodreturns.co.nz/article/976519911/fnz-valued-at-us-20-billion-plus.html), [growth](https://www.goodreturns.co.nz/article/976519911/fnz-valued-at-us-20-billion-plus.html), [address](https://www.fnz.com/contact), [presence](https://en.wikipedia.org/wiki/FNZ_(company)) - **Form3** (`form3`): Cloud platform that runs account to account payment processing for Tier 1 banks and fintechs, including Nationwide. Fintech / Payments Infrastructure | Up and coming | City of London EC4A 1AN | founded 2016 | last round Strategic investment from Nationwide, undisclosed, Oct 2025 | Companies House 09954425 | incorporated 2016-01-15 | SIC 82990 | London HQ | backed by British Patient Capital, Nationwide, Visa | near Chancery Lane (306 m) | https://www.form3.tech | sources: [funding](https://www.form3.tech/resources/press-releases/form3-series-c-extension), [growth](https://www.form3.tech/resources/press-releases/form3-secures-strategic-investment-from-nationwide), [address](https://find-and-update.company-information.service.gov.uk/company/09954425), [presence](https://www.form3.tech/company/careers) - **Freemarket** (`freemarket`): Freemarket runs a payments network that lets businesses move money across borders, exchange currencies and settle payments from one real-time account. Fintech / Cross-border payments | Up and coming | Southwark SE1 0HS | founded 2011 | last round Growth investment from Baird Capital, undisclosed, May 2023 | Companies House 07289573 | incorporated 2010-06-18 | SIC 62012, 64999 | licensed visa sponsor | London HQ | on Deloitte UK Technology Fast 50 2023, #13 | backed by Baird Capital | near Borough (482 m) | https://wearefreemarket.com/ | sources: [funding](https://www.wearefreemarket.com/news/freemarket-secures-growth-capital-investment-from-baird-capital), [growth](https://www.wearefreemarket.com/news/freemarket-secures-growth-capital-investment-from-baird-capital), [address](https://wearefreemarket.com/), [presence](https://wearefreemarket.com/) - **Freetrade** (`freetrade`): Commission-free investing app for UK retail investors, offering shares, ETFs, ISAs and SIPPs. Fintech / Retail Investing | Well known | Hackney EC1V 1AZ | founded 2015 | last round Acquired by IG Group, £160M, Apr 2025 | Companies House 09797821 | incorporated 2015-09-28 | SIC 62012, 66190 | hiring 7 in London | licensed visa sponsor | work model hybrid (7 London job posts) | London HQ | on Sifted 100 UK & Ireland 2024, #23; Deloitte UK Technology Fast 50 2023, #4 | backed by Left Lane Capital, L Catterton, Molten Ventures | near Old Street (154 m) | https://freetrade.io | sources: [growth](https://www.iggroup.com/investor-relations/press-releases/2025/acquisition-of-freetrade), [address](https://freetrade.io), [presence](https://en.wikipedia.org/wiki/Freetrade) - **Funding Circle** (`funding-circle`): Lending platform that gives small businesses fast loans, funded by institutional investors. Fintech / SME lending | Well known | City of London EC4V 4AY | founded 2010 | raised $375M | last round Series F, $100M, Jan 2017 | Companies House 06968588 | incorporated 2009-07-21 | SIC 64929 | licensed visa sponsor | London HQ | backed by Accel, DST Global, Baillie Gifford, Index Ventures, Ribbit Capital, Rocket Internet, Sands Capital, Temasek, Union Square Ventures | near Mansion House (57 m) | https://www.fundingcircle.com | sources: [funding](https://techcrunch.com/2017/01/11/p2p-lending-unicorn-funding-circle-raises-another-100m-led-by-accel/), [growth](https://en.wikipedia.org/wiki/Funding_Circle), [address](https://corporate.fundingcircle.com/contact), [presence](https://en.wikipedia.org/wiki/Funding_Circle) - **Fundment** (`fundment`): Investment platform for UK financial advisers covering account opening, transfers, investment management and drawdown. Fintech / Wealthtech | Fastest growing | Westminster W1T 3NQ | founded 2014 | raised £48.3M (~$61.3M) | last round Series C, £45M, Jan 2025 | Companies House 08884918 | incorporated 2014-02-10 | SIC 66300 | London HQ | on Sifted 100 UK & Ireland 2026, #51; Tech Nation Future Fifty 2025 | backed by Highland Europe, ETFS Capital | near Oxford Circus (397 m) | https://www.fundment.com | sources: [funding](https://www.datocms-assets.com/60124/1774006698-sifted-100-uk-ireland-2026.pdf), [growth](https://www.highlandeurope.com/?p=5789), [address](https://www.fundment.com/contact), [presence](https://builtinlondon.uk/company/fundment) - **G-Research** (`g-research`): Quantitative research and technology firm that uses machine learning and large datasets to predict movements in global financial markets. Fintech / Quant research | Up and coming | Westminster W1D 3BG | founded 2001 | Companies House OC451515 | incorporated 2024-03-21 | licensed visa sponsor | London HQ | near Tottenham Court Road (33 m) | https://www.gresearch.com | sources: [growth](https://www.efinancialcareers.co.uk/news/g-research-pay), [address](https://find-and-update.company-information.service.gov.uk/company/OC451515), [presence](https://www.gresearch.com/contact/) - **Gemba** (`gemba`): Gemba is an FCA-authorised payment institution whose platform lets non-financial companies offer their own branded accounts, payments and cards. Fintech / Embedded banking | Fastest growing | Tower Hamlets E14 5AB | founded 2017 | raised £4.2M (~$5.3M) | Companies House 11040011 | incorporated 2017-10-31 | 12 staff in filed accounts (period to 2024-12-31) | SIC 62012, 64999 | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2026, #82 | near Canary Wharf (136 m) | https://ge.mba/ | sources: [funding](https://email.sifted.eu/hubfs/Sifted%20100%20UK%20%26%20Ireland%202026%20Report.pdf), [growth](https://email.sifted.eu/hubfs/Sifted%20100%20UK%20%26%20Ireland%202026%20Report.pdf), [address](https://ge.mba/), [presence](https://ge.mba/) - **Gen H** (`gen-h`): UK residential mortgage lender focused on helping first-time buyers get onto the property ladder. Fintech / Mortgage Lending | Up and coming | Islington EC1Y 8AF | founded 2018 | last round Series B, £15M, Sep 2022 | Companies House 11465987 | incorporated 2018-07-16 | SIC 64922 | licensed visa sponsor | London HQ | on Deloitte UK Technology Fast 50 2025, #38; Tech Nation Future Fifty 2024 | backed by Legal & General, Mithril Capital | near Old Street (103 m) | https://www.generationhome.com | sources: [funding](https://www.generationhome.com/careers), [growth](https://www.generationhome.com/careers), [address](https://find-and-update.company-information.service.gov.uk/company/11465987), [presence](https://builtinlondon.uk/company/gen-h) - **General Index** (`general-index`): General Index publishes technology-driven price benchmarks for energy and commodity markets such as crude oil, natural gas and refined products. Fintech / Commodity benchmarks | Up and coming | Camden WC2H 8TJ | founded 2020 | raised €27M (~$29.2M) | last round Series A extension, $10M, Oct 2025 | Companies House 12335370 | 23 staff in filed accounts (period to 2025-03-31) | licensed visa sponsor | London HQ | backed by Molten Ventures | near Tottenham Court Road (266 m) | https://general-index.com | sources: [funding](https://www.vestbee.com/insights/articles/top-european-funding-rounds-closed-in-october-2025), [growth](https://siliconcanals.com/general-index-raises-8-6m/), [address](https://general-index.com), [presence](https://general-index.com) - **Genesis Global** (`genesis-global`): Genesis Global provides a low-code application development platform for financial institutions. Fintech / Capital markets software | Up and coming | City of London EC3A 1AT | last round Series C, $200M, Feb 2022 | Companies House 09498568 | incorporated 2015-03-19 | SIC 62090 | licensed visa sponsor | London office, HQ elsewhere | backed by Tiger Global, Accel, Bank of America, BNY Mellon, Citi, GV, Illuminate Financial, ING, Insight Partners, Salesforce Ventures, Tribeca Early Stage Partners | near Aldgate (355 m) | https://genesis.global | sources: [funding](https://www.financemagnates.com/fintech/genesis-raises-200-million-to-expand-its-fintech-focused-low-code-platform/), [growth](https://fintech.global/2022/07/28/genesis-global-collects-fresh-funding-just-months-after-200m-round/), [address](https://genesis.global/contact-us/), [presence](https://genesis.global/contact-us/) - **GetGround** (`getground`): All-in-one platform for buy-to-let investors to set up property companies, buy, finance and manage property. Fintech / Proptech | Fastest growing | Hammersmith and Fulham W6 0NB | founded 2020 | raised £39.3M (~$49.9M) | Companies House 12476549 | incorporated 2020-02-21 | SIC 82990 | London HQ | on Sifted 100 UK & Ireland 2026, #68 | near Hammersmith (224 m) | https://www.getground.co.uk | sources: [funding](https://www.datocms-assets.com/60124/1774006698-sifted-100-uk-ireland-2026.pdf), [growth](https://www.datocms-assets.com/60124/1774006698-sifted-100-uk-ireland-2026.pdf), [address](https://www.linkedin.com/company/getground), [presence](https://www.linkedin.com/company/getground) - **GoCardless** (`gocardless`): Bank payment and direct debit network for recurring and one-off business payments. Fintech / Payments | Well known | Islington EC1V 7EN | founded 2011 | last round Acquired by Mollie, Sep 2026 (last raise Series G, $312M, Feb 2022) | Companies House 07495895 | incorporated 2011-01-17 | SIC 62090 | hiring 3 in London | licensed visa sponsor | London HQ | Y Combinator S11 | backed by Balderton Capital, Accel, Bain Capital Ventures, GV, Salesforce, Y Combinator | near Barbican (473 m) | https://gocardless.com | sources: [funding](https://en.wikipedia.org/wiki/GoCardless), [growth](https://www.crowdfundinsider.com/2026/09/305461-mollie-closes-on-acquisition-of-uk-fintech-gocardless/), [address](https://gocardless.com/about/), [presence](https://en.wikipedia.org/wiki/GoCardless) - **Griffin** (`griffin`): Fully licensed UK bank offering API-first banking-as-a-service so fintechs can build financial products. Fintech / Banking-as-a-service | Fastest growing | City of London EC2M 5QQ | founded 2017 | raised $52M | last round $24M, Mar 2024 | Companies House 10842931 | incorporated 2017-06-29 | SIC 64191 | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2026, #37 | backed by Breega, MassMutual Ventures, NordicNinja, EQT Ventures, Notion Capital | near Moorgate (143 m) | https://griffin.com | sources: [funding](https://en.wikipedia.org/wiki/Griffin_Bank_Ltd), [growth](https://griffin.com/blog/griffin-welcomes-uber-and-marqeta), [address](https://griffin.com/contact), [presence](https://en.wikipedia.org/wiki/Griffin_Bank_Ltd) - **Hokodo** (`hokodo`): Lets B2B merchants and marketplaces offer buyers trade credit and pay-later terms at checkout, online and in store. Fintech / B2B payments | Fastest growing | Hackney EC2A 3JF | founded 2018 | raised £129.5M (~$164.5M) | last round Equity, €10M, Apr 2025 | Companies House 11215527 | incorporated 2018-02-20 | SIC 62012, 64999, 66220 | London HQ | on Sifted 100 UK & Ireland 2026, #49 | backed by Korelya Capital, Opera Tech Ventures, Mundi Ventures, Notion Capital | near Old Street (360 m) | https://www.hokodo.co/ | sources: [funding](https://email.sifted.eu/hubfs/Sifted%20100%20UK%20%26%20Ireland%202026%20Report.pdf), [growth](https://email.sifted.eu/hubfs/Sifted%20100%20UK%20%26%20Ireland%202026%20Report.pdf), [address](https://www.hokodo.co/), [presence](https://email.sifted.eu/hubfs/Sifted%20100%20UK%20%26%20Ireland%202026%20Report.pdf) - **Hyperlayer** (`hyperlayer`): Programmable banking platform that lets banks and businesses launch accounts, rewards and wealth tools on top of existing core systems; it also powers the HyperJar money app. Fintech / Banking infrastructure | Fastest growing | Westminster W2 1AS | last round £30M led by CDAM, Oct 2025 | Companies House 10130583 | incorporated 2016-04-18 | SIC 62012 | licensed visa sponsor | London HQ | backed by CDAM, Flintlock Capital, Iona Star, Mouro Capital, Susquehanna Private Equity Investments | near Edgware Road (Bakerloo) (274 m) | https://www.hyperlayer.com | sources: [funding](https://www.hyperlayer.com/resources/news/hyperlayer-raises-30m-funding), [growth](https://www.hyperlayer.com/resources/news/hyperlayer-raises-30m-funding), [address](https://hyperjar.com/), [presence](https://siliconcanals.com/hyperlayer-raises-e34-3m/) - **IG Group** (`ig-group`): Online trading platform offering spread betting, CFDs, share dealing, options and crypto trading to retail and professional clients. Fintech / Online trading | Well known | City of London EC2V 7QR | founded 1974 | Companies House 04677092 | incorporated 2003-02-25 | SIC 64205 | London HQ | backed by CVC Capital Partners | near St. Paul's (325 m) | https://www.iggroup.com | sources: [growth](https://en.wikipedia.org/wiki/IG_Group), [address](https://www.ig.com/uk/contact-us), [presence](https://en.wikipedia.org/wiki/IG_Group) - **Incard** (`incard`): Business accounts, cards, cashflow and treasury tools for fast-growing digital companies. Fintech / SME business banking | Up and coming | City of London EC4Y 0HA | founded 2020 | raised £10M+ (~$12.7M) | last round Series A, £10M, Feb 2026 | Companies House 13073893 | incorporated 2020-12-09 | 15 staff in filed accounts (period to 2025-12-31) | SIC 58290, 62090, 64999 | hiring 14 in London | licensed visa sponsor | work model on-site (14 London job posts) | London HQ | backed by Smartfin, Founders Capital, MountFund | near Blackfriars (341 m) | https://www.incard.com | sources: [funding](https://fintech.global/2026/02/02/incard-bags-10m-to-expand-its-fintech-platform/), [growth](https://fintech.global/2026/02/02/incard-bags-10m-to-expand-its-fintech-platform/), [address](https://www.incard.com), [presence](https://fintech.global/2026/02/02/incard-bags-10m-to-expand-its-fintech-platform/) - **INSTANDA** (`instanda`): No-code platform that lets insurers and MGAs build, configure and distribute insurance products. Fintech / Insurtech | Fastest growing | City of London EC3V 0HR | raised $85M+ | last round $20M led by CommerzVentures, Oct 2025 | Companies House 05236974 | incorporated 2004-09-21 | SIC 62090 | London HQ | backed by CommerzVentures, Dale Ventures, Toscafund | near Monument (172 m) | https://instanda.com | sources: [funding](https://fintech.global/2025/10/21/instanda-bags-20m-from-commerzventures/), [growth](https://fintech.global/2025/10/21/instanda-bags-20m-from-commerzventures/), [address](https://instanda.com/contact-us), [presence](https://instanda.com/contact-us) - **IntegraFin** (`integrafin`): IntegraFin runs Transact, an investment platform for UK financial advisers and their clients, and sells software to advice firms including the Curo CRM. Fintech / Investment platform | Well known | City of London EC2V 7AD | Companies House 08860879 | incorporated 2014-01-24 | SIC 64209 | London HQ | near St. Paul's (151 m) | https://www.integrafin.co.uk | sources: [growth](https://in.tradingview.com/symbols/LSE-IHP/), [address](https://www.integrafin.co.uk/), [presence](https://www.integrafin.co.uk/) - **InvestEngine** (`investengine`): Commission-free ETF investing platform for individuals and businesses, with ISAs, pensions and managed portfolios. Fintech / Wealthtech | Fastest growing | Southwark SE1 0BS | founded 2019 | raised £4.4M (~$5.6M) | Companies House 10438231 | incorporated 2016-10-20 | 33 staff in filed accounts (period to 2025-03-31) | SIC 66300 | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2026, #39 | near Southwark (312 m) | https://investengine.com | sources: [funding](https://www.datocms-assets.com/60124/1774006698-sifted-100-uk-ireland-2026.pdf), [growth](https://www.datocms-assets.com/60124/1774006698-sifted-100-uk-ireland-2026.pdf), [address](https://investengine.com), [presence](https://investengine.com) - **iwoca** (`iwoca`): Online lender giving small businesses in the UK and Germany fast, flexible working-capital loans. Fintech / SME lending | Fastest growing | Camden WC1B 3AU | founded 2011 | Companies House 07798925 | incorporated 2011-10-05 | SIC 64921 | hiring 34 in London | licensed visa sponsor | work model hybrid (20 London job posts) | London HQ | backed by Acton Capital, CommerzVentures, Prime Ventures, Global Founders Capital, Redline Capital, Rocket Internet | near Tottenham Court Road (182 m) | https://www.iwoca.co.uk | sources: [growth](https://www.iwoca.co.uk/news/revenue-increases-by-over-50-as-iwoca-launches-new-products-to-solve-more-sme-problems), [address](https://www.iwoca.co.uk/), [presence](https://en.wikipedia.org/wiki/Iwoca) - **Juice** (`juice`): Revolving credit lines of £50K to £1M for UK SMEs, paired with free cash runway forecasting tools. Fintech / SME lending | Up and coming | City of London EC4A 1JQ | founded 2019 | last round Equity and debt, £25M, May 2025 | Companies House 12011847 | incorporated 2019-05-22 | 9 staff in filed accounts (period to 2025-03-31) | SIC 64929 | London HQ | on Tech Nation Upscale 2025; Deloitte UK Technology Fast 50 2024, #28 | backed by Aern Capital, Falco Capital | near Chancery Lane (139 m) | https://www.getmejuice.com/ | sources: [funding](https://fintech.global/2025/05/09/uk-fintech-lender-juice-raises-25m-to-back-sme-founders-with-non-dilutive-capital/), [growth](https://fintech.global/2025/05/09/uk-fintech-lender-juice-raises-25m-to-back-sme-founders-with-non-dilutive-capital/), [address](https://www.getmejuice.com/), [presence](https://www.getmejuice.com/) - **Ki Insurance** (`ki-insurance`): Lloyd's first fully digital, algorithm driven syndicate that lets brokers get instant specialty insurance quotes. Fintech / Algorithmic Insurance | Up and coming | City of London EC3V 4AB | founded 2020 | raised $500M | last round Launch capital, $500M, Sep 2020 | Companies House 13786749 | incorporated 2021-12-07 | SIC 66220 | hiring 20 in London | work model hybrid (20 London job posts) | London HQ | backed by Blackstone, Fairfax Financial | near Monument (426 m) | https://www.ki-insurance.com | sources: [funding](https://www.britinsurance.com/news/blackstone-invests-alongside-fairfax-in-us-500m-ki-launch), [growth](https://ki-insurance.com/about-us/who-we-are), [address](https://ki-insurance.com/about-us/who-we-are), [presence](https://www.cbinsights.com/company/ki) - **Kord** (`kord`): FCA-regulated onboarding, ID and AML checks, and payments platform for estate agents, law firms and conveyancers. Fintech / Compliance and Payments | Up and coming | City of London EC2M 5QQ | founded 2019 | last round Series A, £6.4M, Jul 2026 | Companies House 16971476 | incorporated 2026-01-19 | SIC 62090 | hiring 1 in London | London HQ | on Tech Nation Upscale 2026 | backed by Guinness Ventures, Beringea, SFC Capital | near Moorgate (143 m) | https://kord.com | sources: [funding](https://www.uktech.news/fintech/kord-secures-6-4m-to-process-payments-for-regulated-industries-20260708), [growth](https://www.uktech.news/fintech/kord-secures-6-4m-to-process-payments-for-regulated-industries-20260708), [address](https://kord.com/company/about/), [presence](https://kord.com) - **Kroo** (`kroo`): Licensed UK digital bank paying interest on current accounts, with savings, ISAs and loans. Fintech / Neobank | Up and coming | City of London EC4A 4AB | founded 2016 | raised £72M+ (~$91.4M) | last round Crowdcube-backed round, £9.5M, Nov 2023 | Companies House 10359002 | incorporated 2016-09-05 | SIC 64191 | licensed visa sponsor | London HQ | near St. Paul's (479 m) | https://kroo.com | sources: [funding](https://ffnews.com/newsarticle/funding/kroo-exceeds-1m-crowdfunding-target-with-investments-made-on-average-every-minute/), [growth](https://en.wikipedia.org/wiki/Kroo_(bank)), [address](https://help.kroo.com/hc/en-gb/articles/31639622688657-What-s-Kroo-s-address), [presence](https://en.wikipedia.org/wiki/Kroo_(bank)) - **Laka** (`laka`): Collective-model insurance for cyclists, e-bikes and green mobility fleets across the UK and Europe. Fintech / Micromobility Insurtech | Up and coming | Tower Hamlets E1 8DN | founded 2017 | last round Series B, £7.75M, Jul 2025 | Companies House 10575209 | incorporated 2017-01-20 | SIC 62012, 66220 | licensed visa sponsor | London HQ | on Tech Nation Future Fifty 2026 | backed by MS&AD Ventures, Shift4Good, Creandum, LocalGlobe, Porsche Ventures | near Aldgate East (223 m) | https://laka.co | sources: [funding](https://businesscloud.co.uk/news/green-mobility-insurer-laka-targets-profitability-with-7-75m-raise/), [growth](https://businesscloud.co.uk/news/tech-nation-unveils-future-fifty-2026-cohort-at-downing-st/), [address](https://laka.co/gb/privacy-policy), [presence](https://laka.co/gb/privacy-policy) - **LemFi** (`lemfi`): App for immigrants to send money home and access financial services across 30+ countries. Fintech / Remittances | Fastest growing | Camden N1C 4EW | raised $85M | last round Series B, $53M, Jan 2025 | Companies House 09163262 | incorporated 2014-08-05 | 4 staff in filed accounts (period to 2022-12-31) | SIC 64999 | hiring 9 in London | licensed visa sponsor | work model hybrid (9 London job posts) | London HQ | Y Combinator S21 | backed by Highland Europe, Endeavor Catalyst, Left Lane Capital, Palm Drive Capital, Y Combinator | near King's Cross & St Pancras International (699 m) | https://lemfi.com | sources: [funding](https://techcrunch.com/2025/01/13/lemfi-moves-remittances-further-into-asia-and-europe-with-53m-in-new-funding/), [growth](https://businesscloud.co.uk/news/fintech-lemfi-to-invest-100m-in-uk-as-it-opens-global-hq/), [address](https://lemfi.com/contact-us), [presence](https://jobs.ashbyhq.com/lemfi) - **LemonEdge** (`lemonedge`): Fund accounting and operations software for private equity firms, fund administrators and family offices. Fintech / Fund Accounting | Fastest growing | City of London EC2M 1JH | last round Series A, $21M, Jul 2026 | Companies House 07629640 | incorporated 2011-05-11 | SIC 62012 | London HQ | backed by Blackstone Innovations Investments, BNY, Sidekick Partners | near Liverpool Street (140 m) | https://www.lemonedge.com | sources: [funding](https://fintech.global/2026/07/29/lemonedge-lands-21m-series-a-to-modernise-private-markets/), [growth](https://fintech.global/2026/07/29/lemonedge-lands-21m-series-a-to-modernise-private-markets/), [address](https://find-and-update.company-information.service.gov.uk/company/07629640), [presence](https://find-and-update.company-information.service.gov.uk/company/07629640) - **Lendable** (`lendable`): Online consumer lender offering personal loans, credit cards and car finance using automated underwriting. Fintech / Consumer Lending | Well known | Hackney EC2A 4NW | founded 2014 | Companies House 08828186 | incorporated 2013-12-31 | SIC 64921 | London HQ | backed by Ontario Teachers' Pension Plan, Balderton Capital | near Old Street (279 m) | https://www.lendable.co.uk | sources: [growth](https://en.wikipedia.org/wiki/Lendable), [address](https://www.lendable.co.uk/about), [presence](https://en.wikipedia.org/wiki/Lendable) - **LendInvest** (`lendinvest`): LendInvest is an AIM-listed online lender offering buy-to-let, short-term and development finance for UK property. Fintech / Property finance | Up and coming | Camden W1T 5HD | Companies House 08146929 | incorporated 2012-07-17 | SIC 64922 | licensed visa sponsor | London HQ | near Warren Street (238 m) | https://www.lendinvest.com/ | sources: [growth](https://www.mortgagesolutions.co.uk/specialist-lending/complex-buy-to-let/2026/07/16/lendinvest-closes-financial-year-with-record-1-44bn-lending/), [address](https://find-and-update.company-information.service.gov.uk/company/08146929), [presence](https://www.financialreporter.co.uk/finance-news/lendinvest-opens-new-office-in-glasgow.html) - **Liberis** (`liberis`): Embedded finance provider that offers revenue-based funding to small businesses through payment and software partners. Fintech / Embedded SME finance | Up and coming | Hammersmith and Fulham W12 7RZ | founded 2007 | Companies House 05654231 | incorporated 2005-12-14 | SIC 64992 | hiring 8 in London | licensed visa sponsor | London HQ | backed by FTV Capital, Blenheim Chalcot | near White City (250 m) | https://www.liberis.com | sources: [growth](https://nordiccapital.com/insights/press-releases/qred-and-liberis-will-join-forces-to-create-a-market-leading-global-platform-for-smb-financing), [address](https://www.liberis.com/contact-us), [presence](https://www.liberis.com/contact-us) - **Lightyear** (`lightyear`): Investing app for stocks, ETFs and money market funds, available in 25 countries across the UK and Europe. Fintech / Investing App | Fastest growing | Islington EC1Y 8AF | founded 2020 | raised $58M | last round Series B, $23M, Jul 2025 | Companies House 12925823 | incorporated 2020-10-03 | SIC 64999 | licensed visa sponsor | London HQ | backed by NordicNinja, Lightspeed Venture Partners, Metaplanet, Skaala, SpecialistVC, Superangel | near Old Street (103 m) | https://lightyear.com | sources: [funding](https://lightyear.com/en-gb/blog/lightyear-closes-dollar23m-series-b), [growth](https://lightyear.com/en-gb/blog/lightyear-closes-dollar23m-series-b), [address](https://careers.lightyear.com/jobs/8471802-brokerage-operations-specialist), [presence](https://tech.eu/2021/06/03/london-tallinn-based-commission-free-investment-platform-lightyear-raises-1-5-million-in-pre-seed-funding/) - **LSEG** (`lseg`): LSEG provides financial market data and analytics, indices, risk intelligence and market infrastructure including exchanges and clearing. Fintech / Market data | Well known | City of London EC4M 7LS | Companies House 05369106 | incorporated 2005-02-18 | SIC 70100 | licensed visa sponsor | London HQ | near St. Paul's (124 m) | https://www.lseg.com | sources: [growth](https://www.morningstar.com.au/investments/security/lse/LSEG), [address](https://find-and-update.company-information.service.gov.uk/company/05369106), [presence](https://www.morningstar.com.au/investments/security/lse/LSEG) - **M-KOPA** (`m-kopa`): M-KOPA sells smartphones, solar systems and other assets on pay-as-you-go credit to underbanked customers in Africa. Fintech / Asset financing | Well known | Camden N1C 4AG | founded 2010 | raised $358.1M | last round Series F, $160M, Nov 2025 | Companies House 10891868 | hiring 5 in London | licensed visa sponsor | work model remote (5 London job posts) | London HQ | backed by British International Investment, Generation Investment Management, Lightrock | near King's Cross & St Pancras International (225 m) | https://m-kopa.com | sources: [funding](https://app.welcometothejungle.com/companies/M-KOPA), [growth](https://app.welcometothejungle.com/companies/M-KOPA), [address](https://m-kopa.com/contact), [presence](https://app.welcometothejungle.com/companies/M-KOPA) - **ManyPets** (`manypets`): Pet insurance provider, formerly Bought By Many, selling cover for dogs and cats in the UK. Fintech / Pet Insurtech | Well known | Camden EC1R 5BD | founded 2012 | raised $477M | last round Series D, $350M, Jun 2021 | Companies House 07886430 | incorporated 2011-12-19 | SIC 66220 | licensed visa sponsor | London HQ | backed by EQT Growth, Munich Re Ventures, Octopus Ventures | near Farringdon (421 m) | https://manypets.com | sources: [funding](https://www.cbinsights.com/company/bought-by-many/financials), [growth](https://tech.eu/2021/06/01/londons-pet-insurance-provider-bought-by-many-brings-home-350-million-bones-now-valued-at-over-2-billion/), [address](https://www.manypets.com/uk/contact-us/), [presence](https://builtinlondon.uk/company/manypets) - **Marshmallow** (`marshmallow`): Car and home insurance built for people overlooked by traditional insurers, including migrants to the UK. Fintech / Insurtech | Well known | Islington EC1Y 1BD | founded 2017 | last round Growth round led by Portage, $90M (about half debt), Apr 2025 | Companies House 11005345 | incorporated 2017-10-10 | SIC 66220 | hiring 10 in London | work model hybrid (6 London job posts) | London HQ | on Sifted 100 UK & Ireland 2024, #13 | backed by Portage, BlackRock, Investec, Passion Capital, SCOR | near Old Street (149 m) | https://www.marshmallow.com | sources: [funding](https://techcrunch.com/2025/04/14/marshmallow-the-uk-insurance-startup-for-migrants-raises-90m-at-a-2b-valuation/), [growth](https://techcrunch.com/2025/04/14/marshmallow-the-uk-insurance-startup-for-migrants-raises-90m-at-a-2b-valuation/), [address](https://www.marshmallow.com/about), [presence](https://www.marshmallow.com/about) - **MillTech** (`milltech`): Platform that automates FX hedging and cash management for fund managers and corporates. Fintech / FX And Treasury | Fastest growing | City of London EC2V 7QR | founded 2019 | last round Growth, $60M, Apr 2026 | Companies House 11790385 | incorporated 2019-01-28 | SIC 64999 | licensed visa sponsor | London HQ | backed by Apax Digital | near St. Paul's (325 m) | https://www.milltech.com | sources: [funding](https://ventureburn.com/milltech-bags-60m-to-scale-treasury-and-fx-tools/), [growth](https://ventureburn.com/milltech-bags-60m-to-scale-treasury-and-fx-tools/), [address](https://www.milltech.com/contact), [presence](https://www.milltech.com/privacy-policy) - **Mintago** (`mintago`): Employee benefits platform for UK employers covering salary sacrifice, pensions, financial coaching and health perks. Fintech / Employee Benefits | Up and coming | Westminster W1D 4AL | founded 2019 | last round £6M, May 2025 | Companies House 12000248 | incorporated 2019-05-16 | 32 staff in filed accounts (period to 2025-05-31) | SIC 62090 | hiring 1 in London | licensed visa sponsor | London HQ | on Tech Nation Upscale 2026 | backed by BlackLion Ventures, Cur8 Capital, Love Ventures | near Tottenham Court Road (167 m) | https://mintago.com | sources: [funding](https://mintago.com/blog/mintago-6m-funding), [growth](https://mintago.com/blog/mintago-6m-funding), [address](https://uk.linkedin.com/company/getmintago), [presence](https://mintago.teamtailor.com/) - **Model ML** (`model-ml`): AI workflow platform that turns financial data into client-ready decks, memos and reports for banks and investors. Fintech (also AI) / AI for finance | Fastest growing | Islington N1 9RR | founded 2024 | raised $87M | last round Series A, $75M, Nov 2025 | Companies House 15457118 | incorporated 2024-01-31 | 21 staff in filed accounts (period to 2025-12-31) | SIC 62012 | licensed visa sponsor | London office, HQ elsewhere | Y Combinator W24 | backed by FT Partners, 13books Capital, Latitude, LocalGlobe, QED Investors, Y Combinator | near King's Cross & St Pancras International (374 m) | https://modelml.com | sources: [funding](https://fintech.global/2025/11/24/model-ml-secures-75m-to-expand-ai-workflow-product/), [growth](https://www.modelml.com/articles/hsbc-rolls-out-model-ml-globally), [address](https://find-and-update.company-information.service.gov.uk/company/16523694), [presence](https://modelml.com/) - **Modulr** (`modulr`): Payments infrastructure that automates payroll, supplier payments and collections for businesses and software platforms. Fintech / Embedded payments | Up and coming | Islington EC1Y 2AL | founded 2015 | raised £150M (~$190.5M) | last round Series C, $108M, led by General Atlantic, May 2022 | Companies House 09897957 | incorporated 2015-12-02 | SIC 82990 | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2024, #87 | backed by General Atlantic, Blenheim Chalcot, FIS Ventures, Frog Capital, Highland Europe, PayPal Ventures | near Old Street (182 m) | https://www.modulrfinance.com | sources: [funding](https://www.modulrfinance.com/newsroom/modulr-raises-108m-in-series-c-funding-round-led-by-general-atlantic), [growth](https://www.modulrfinance.com/newsroom/modulr-achieves-profitability-as-it-enters-its-10th-year-processing-180bn-in-annualised-payment-value), [address](https://www.modulrfinance.com/careers), [presence](https://leadiq.com/c/modulr-finance/5a1d9d8923000053008d6423) - **Moneybox** (`moneybox`): App for saving, investing, pensions and Lifetime ISAs, aimed at helping people build wealth. Fintech / Savings and investing | Well known | Southwark SE1 9PG | Companies House 09597755 | incorporated 2015-05-19 | SIC 62012, 64999 | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2026, #97; Deloitte UK Technology Fast 50 2025, #37; Sifted 100 UK & Ireland 2024, #37; Deloitte UK Technology Fast 50 2024, #23; Deloitte UK Technology Fast 50 2023, #26 | backed by Apis Global Growth Fund III, CNP, Eight Roads, Amundi, Breega | near Blackfriars (334 m) | https://www.moneyboxapp.com | sources: [growth](https://support.moneyboxapp.com/moneybox-valuation-climbs-to-800m-us1-1b-as-it-prepares-pisces-enabled-secondary-share-sale-for-long-serving-employees/), [address](https://www.moneyboxapp.com/about-us/), [presence](https://www.moneyboxapp.com/) - **Moneyfarm** (`moneyfarm`): Digital wealth manager offering managed portfolios, ISAs, pensions and DIY investing to retail investors in the UK and Italy. Fintech / Wealth management | Up and coming | Islington N1 9HS | last round $13.4M, Q2 2025 | Companies House 09088155 | incorporated 2014-06-16 | SIC 66300 | licensed visa sponsor | London HQ | backed by Allianz, Poste Italiane | near Angel (320 m) | https://www.moneyfarm.com | sources: [funding](https://fintech.global/2025/09/11/uk-companies-dominated-european-wealthtech-deals-in-q2-as-deal-activity-grew-by-19-qoq/), [growth](https://www.moneyfarm.com/uk/philosophy/), [address](https://www.moneyfarm.com/uk/), [presence](https://en.wikipedia.org/wiki/MoneyFarm) - **Monument** (`monument`): UK digital bank for mass-affluent savers and borrowers, with a banking-as-a-service tech arm, Monument Technology. Fintech / Digital bank | Fastest growing | Westminster W1G 0PW | founded 2017 | raised £135M (~$171.4M) | last round Series C (first close), £30M, Feb 2025 | Companies House 10921940 | incorporated 2017-08-18 | SIC 64191 | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2026, #55; Deloitte UK Technology Fast 50 2025, #2; Tech Nation Future Fifty 2024 | backed by Dubai Investments | near Oxford Circus (172 m) | https://www.monument.co | sources: [funding](https://thepaypers.com/fintech/news/monument-bank-aims-to-raise-gbp-200m-in-private-funding), [growth](https://www.monument.co/news), [address](https://www.monument.co/contact-us), [presence](https://builtinlondon.uk/company/monument-bank) - **Monzo** (`monzo`): UK digital bank with app-based current accounts, savings and business banking. Fintech / Neobank | Well known | City of London EC2A 2AG | founded 2015 | last round Secondary share sale, $5.9B valuation, Oct 2024 | Companies House 09446231 | incorporated 2015-02-18 | SIC 64191, 64999 | hiring 52 in London | licensed visa sponsor | work model remote (39 London job posts) | London HQ | on Deloitte UK Technology Fast 50 2025, #50 | backed by Abu Dhabi Growth Fund, Goodwater Capital, Passion Capital, Y Combinator Continuity, GIC, Hedosophia, Novator Partners, Orange Digital Ventures, StepStone Group, Thrive Capital | near Liverpool Street (370 m) | https://monzo.com | sources: [funding](https://en.wikipedia.org/wiki/Monzo), [growth](https://en.wikipedia.org/wiki/Monzo), [address](https://find-and-update.company-information.service.gov.uk/company/09446231), [presence](https://en.wikipedia.org/wiki/Monzo) - **Multiply** (`multiply`): Multiply sells AI software that helps financial advice firms automate client onboarding, annual reviews and personalised recommendations. Fintech (also AI) / Advice software | Up and coming | Islington N1 7DP | founded 2016 | Companies House 10470734 | incorporated 2016-11-09 | 14 staff in filed accounts (period to 2025-12-31) | SIC 62012 | London HQ | near Angel (1021 m) | https://multiply.ai | sources: [growth](https://multiply.ai), [address](https://multiply.ai), [presence](https://app.welcometothejungle.com/companies/Multiply) - **NALA** (`nala`): Money transfer app for diaspora sending money to Africa and Asia, plus the Rafiki B2B payments API. Fintech / Remittances | Fastest growing | Tower Hamlets E14 5RE | raised $50.4M | last round Series A, $40M, Jul 2024 | Companies House 12792210 | incorporated 2020-08-04 | SIC 64999 | hiring 3 in London | licensed visa sponsor | work model mixed (3 London job posts) | London office, HQ elsewhere | Y Combinator W19 | backed by Acrew Capital, Amplo, DST Global, HOF Capital, Norrsken22 | near Canary Wharf (291 m) | https://www.nala.com | sources: [funding](https://app.welcometothejungle.com/jobs/NeA1ycYo), [growth](https://www.nala.com/blog/40m-announcement), [address](https://www.linkedin.com/company/nalamoney), [presence](https://www.nala.com/our-story) - **Napo** (`napo`): Napo sells lifetime pet insurance for dogs and cats in the UK. Fintech / Insurtech | Up and coming | Kensington and Chelsea SW3 3TQ | founded 2021 | raised €36.1M (~$39M) | last round Series B, €14.4M, Feb 2025 | Companies House 13281620 | incorporated 2021-03-21 | 70 staff in filed accounts (period to 2024-12-31) | SIC 62090, 66220 | licensed visa sponsor | London HQ | backed by Mercia Ventures, Companion Fund, DN Capital, Helvetia Venture Fund, MTech Capital | near Sloane Square (726 m) | https://www.napo.pet | sources: [funding](https://fintech.global/2025/02/27/napo-raises-e14-4m-to-revolutionise-pet-insurance-with-ai-and-automation/), [growth](https://fintech.global/2025/02/27/napo-raises-e14-4m-to-revolutionise-pet-insurance-with-ai-and-automation/), [address](https://www.napo.pet/privacy-policy), [presence](https://fintech.global/2025/02/27/napo-raises-e14-4m-to-revolutionise-pet-insurance-with-ai-and-automation/) - **Native Teams** (`native-teams`): Employer of record, payroll and cross-border payments platform for companies hiring international teams. Fintech / Employer of Record | Fastest growing | Tower Hamlets E14 5AB | founded 2020 | raised £14.9M (~$18.9M) | Companies House 12584623 | incorporated 2020-05-04 | SIC 62012 | London HQ | on Sifted 100 UK & Ireland 2026, #52 | backed by Haatch | near Canary Wharf (136 m) | https://www.nativeteams.com | sources: [funding](https://www.datocms-assets.com/60124/1774006698-sifted-100-uk-ireland-2026.pdf), [growth](https://www.datocms-assets.com/60124/1774006698-sifted-100-uk-ireland-2026.pdf), [address](https://find-and-update.company-information.service.gov.uk/company/12584623), [presence](https://find-and-update.company-information.service.gov.uk/company/12584623) - **Navro** (`navro`): One API and contract for global payouts and collections across 200+ countries for international businesses. Fintech / Cross-border Payments | Fastest growing | Hackney EC2A 4NE | last round Series B, $41M, Apr 2025 | Companies House 13854323 | incorporated 2022-01-17 | 51 staff in filed accounts (period to 2025-12-31) | SIC 64999 | London HQ | on LinkedIn Top Startups UK 2025, #19 | backed by Jump Capital, Motive Partners, Unusual Ventures, Bain Capital Ventures | near Old Street (321 m) | https://www.navro.com | sources: [funding](https://vestbee.com/blog/articles/navro-raises-41-m), [growth](https://vestbee.com/blog/articles/navro-raises-41-m), [address](https://find-and-update.company-information.service.gov.uk/company/13854323), [presence](https://find-and-update.company-information.service.gov.uk/company/13854323) - **NayaOne** (`nayaone`): Digital sandbox and vendor marketplace that lets banks and insurers test and validate new technology vendors quickly. Fintech / Fintech Sandbox | Up and coming | City of London EC2M 5QQ | founded 2019 | Companies House 12117711 | incorporated 2019-07-23 | 15 staff in filed accounts (period to 2025-06-30) | SIC 62012, 62090, 63110 | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2024, #24; Deloitte UK Technology Fast 50 2024, #29 | backed by EJF Capital, Carthona Capital, Valley Ventures | near Moorgate (143 m) | https://nayaone.com | sources: [growth](https://www.fast50.co.uk/fast50/winners/2024/), [address](https://nayaone.com/contact-us), [presence](https://nayaone.com/contact-us) - **Neudata** (`neudata`): A marketplace and research service that helps investment firms find, evaluate and price alternative and market datasets. Fintech / Alternative data | Up and coming | City of London EC2Y 9DT | founded 2016 | last round $1M, Jul 2019 | Companies House 09942593 | incorporated 2016-01-08 | 64 staff in filed accounts (period to 2025-12-31) | SIC 62012 | hiring 2 in London | licensed visa sponsor | work model hybrid (2 London job posts) | London HQ | near Moorgate (114 m) | https://www.neudata.co | sources: [funding](https://prnewswire.co.uk/news-releases/neudata-secures-one-million-usd-funding-to-accelerate-growth-874912789.html), [growth](https://www.neudata.co/), [address](https://www.neudata.co/contact), [presence](https://www.neudata.co/contact) - **Novatus Global** (`novatus-global`): Regulatory reporting software and consulting that helps banks and asset managers check, fix and manage transaction reporting. Fintech / Regtech | Up and coming | City of London EC2Y 5AU | founded 2019 | raised $40M | last round Growth, $40M, Sep 2024 | Companies House 11910864 | incorporated 2019-03-28 | 60 staff in filed accounts (period to 2025-03-31) | SIC 62012 | licensed visa sponsor | London HQ | backed by Silversmith Capital Partners | near Moorgate (276 m) | https://www.novatus.com | sources: [funding](https://fintech.global/2024/09/13/novatus-global-bolsters-regtech-prowess-with-40m-investment/), [growth](https://fintech.global/2024/09/13/novatus-global-bolsters-regtech-prowess-with-40m-investment/), [address](https://www.novatus.com/contact), [presence](https://fintech.global/2024/09/13/novatus-global-bolsters-regtech-prowess-with-40m-investment/) - **OakNorth** (`oaknorth`): Bank that lends to growing mid-sized businesses in the UK and US. Fintech / SME lending bank | Well known | Westminster W1F 9QS | founded 2015 | last round $440M, 2019 (SoftBank Vision Fund, Clermont Group) | Companies House 08595042 | incorporated 2013-07-03 | SIC 64191 | licensed visa sponsor | London HQ | backed by Clermont Group, SoftBank Vision Fund | near Oxford Circus (405 m) | https://oaknorth.co.uk | sources: [funding](https://en.wikipedia.org/wiki/OakNorth_Bank), [growth](https://en.wikipedia.org/wiki/OakNorth_Bank), [address](https://find-and-update.company-information.service.gov.uk/company/08595042), [presence](https://en.wikipedia.org/wiki/OakNorth_Bank) - **OneDome** (`onedome`): Digital homebuying platform that brings mortgage, conveyancing and insurance into one online journey. Fintech / Proptech | Up and coming | Westminster SW1W 9SH | founded 2016 | Companies House 10117216 | incorporated 2016-04-11 | 65 staff in filed accounts (period to 2024-12-31) | SIC 62012 | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2026, #61; Deloitte UK Technology Fast 50 2025, #17 | backed by Channel 4 Ventures | near Victoria (353 m) | https://www.onedome.com | sources: [growth](https://www.fast50.co.uk/fast50/winners/2025/), [address](https://find-and-update.company-information.service.gov.uk/company/10117216), [presence](https://businesscloud.co.uk/news/proptech-onedome-to-build-as-funding-approaches-30m/) - **OpenPayd** (`openpayd`): Banking-as-a-service platform for accounts, payments, FX and stablecoin money movement for businesses. Fintech / Payments Infrastructure | Well known | Islington EC1V 9NR | Companies House 09570221 | incorporated 2015-04-30 | SIC 64999 | hiring 8 in London | licensed visa sponsor | work model hybrid (8 London job posts) | London HQ | near Old Street (56 m) | https://www.openpayd.com | sources: [growth](https://www.openpayd.com/announcements/openpayd-targets-nasdaq-listing-at-unicorn-valuation/), [address](https://www.openpayd.com/company/), [presence](https://en.wikipedia.org/wiki/OpenPayd) - **Outpost** (`outpost`): Merchant of record and tax of record platform that handles local payments, tax and customs so merchants can sell cross-border. Fintech / Cross-border payments | Up and coming | Westminster W1B 4HB | founded 2024 | last round Series A, $17.5M, Mar 2026 | Companies House 13465097 | incorporated 2021-06-18 | 1 staff in filed accounts (period to 2025-06-30) | SIC 74909 | hiring 19 in London | licensed visa sponsor | work model on-site (19 London job posts) | London HQ | backed by Better Tomorrow Ventures, Ribbit Capital | near Oxford Circus (231 m) | https://outpost.ai | sources: [funding](https://pulse2.com/outpost-17-5-million-raised-for-cross-border-commerce-infrastructure-platform), [growth](https://pulse2.com/outpost-17-5-million-raised-for-cross-border-commerce-infrastructure-platform), [address](https://outpost.ai/company-information/), [presence](https://thenextweb.com/news/outpost-raises-17-5m) - **Paddle** (`paddle`): Merchant-of-record payments platform that handles billing, tax and compliance for software companies. Fintech / Merchant of record | Well known | Islington EC1V 8BT | founded 2012 | last round Series D, $200M, May 2022 | Companies House 08172165 | incorporated 2012-08-08 | SIC 47910 | hiring 1 in London | licensed visa sponsor | London HQ | backed by KKR, 83North, FTV Capital, Kindred Capital, Notion Capital | near Old Street (422 m) | https://www.paddle.com | sources: [funding](https://tech.eu/2022/05/10/paddle-pilots-200-million-to-port-at-14-billion-valuation/), [growth](https://tech.eu/2022/05/10/paddle-pilots-200-million-to-port-at-14-billion-valuation/), [address](https://builtinlondon.uk/job/senior-global-payroll-specialist/10114042), [presence](https://www.paddle.com/legal/terms) - **Payhawk** (`payhawk`): Spend management platform combining corporate cards, expenses, payables and accounting for finance teams. Fintech / Spend Management | Well known | City of London WC2A 1QS | founded 2018 | last round Series B extension, $100M, Mar 2022 | Companies House 11747263 | incorporated 2019-01-02 | SIC 62090 | hiring 6 in London | London HQ | backed by Lightspeed Venture Partners, Bek Ventures, Endeavor Catalyst, Greenoaks, HubSpot Ventures, Jigsaw Ventures, QED Investors, Sprints Capital | near Chancery Lane (125 m) | https://payhawk.com | sources: [funding](https://payhawk.com/blog/payhawk-becomes-first-ever-bulgarian-unicorn-after-raising-100m-in-a-lightspeed-led-series-b-extension/), [growth](https://payhawk.com/blog/payhawk-becomes-first-ever-bulgarian-unicorn-after-raising-100m-in-a-lightspeed-led-series-b-extension/), [address](https://payhawk.com/about), [presence](https://builtin.com/company/payhawk) - **Paymentology** (`paymentology`): Cloud-based card issuer-processor that lets banks and fintechs launch physical and virtual cards. Fintech / Card Issuer Processing | Fastest growing | City of London EC4Y 0DY | founded 2015 | last round Growth equity, $175M, May 2026 | Companies House 09670444 | incorporated 2015-07-03 | SIC 62090 | licensed visa sponsor | backed by Apis Partners, Aspirity Partners | near Blackfriars (224 m) | https://www.paymentology.com | sources: [funding](https://fintech.global/2026/05/12/paymentology-raises-175m-to-fuel-global-expansion/), [growth](https://fintech.global/2026/05/12/paymentology-raises-175m-to-fuel-global-expansion/), [address](https://www.paymentology.com/en/offices) - **Paysafe** (`paysafe`): Payments group offering merchant payment processing, digital wallets such as Skrill and Neteller, and online cash solutions such as paysafecard. Fintech / Payments | Well known | City of London EC2V 7AD | Companies House 03202517 | incorporated 1996-05-22 | SIC 64999, 82990 | London HQ | near St. Paul's (151 m) | https://www.paysafe.com | sources: [growth](https://www.sec.gov/Archives/edgar/data/1833835/000119312526088095/psfe-20251231.htm), [address](https://www.sec.gov/Archives/edgar/data/1833835/000119312526088095/psfe-20251231.htm), [presence](https://www.sec.gov/Archives/edgar/data/1833835/000119312526088095/psfe-20251231.htm) - **Paysend** (`paysend`): Cross-border payments platform for sending money to cards, accounts and wallets in 170+ countries, with APIs for businesses. Fintech / Cross-border payments | Up and coming | Westminster WC2E 9BT | founded 2017 | last round Series B, $125M, May 2021 | Companies House SC376020 | incorporated 2010-03-31 | SIC 64999 | licensed visa sponsor | London HQ | backed by One Peak, Hermes GPE, InfraVia Growth Capital, Plug and Play | near Leicester Square (138 m) | https://paysend.com | sources: [funding](https://techcrunch.com/2021/05/26/uks-paysend-raises-125m-at-a-700m-valuation-to-expand-its-all-in-one-payments-platform), [growth](https://pulse2.com/paysend-25-million-follow-on-investment-from-claret-capital-to-scale-global-payments-platform/amp/), [address](https://paysend.com/en-gb/privacy-policy), [presence](https://builtin.com/company/paysend) - **Penfold** (`penfold`): Digital workplace and personal pension provider for small businesses, employees and the self-employed, with a savings app. Fintech / Digital Pensions | Fastest growing | Southwark SE1 1DN | founded 2019 | Companies House 11668244 | incorporated 2018-11-08 | SIC 62090, 64999 | London HQ | on Deloitte UK Technology Fast 50 2025, #33 | backed by Force Over Mass Capital, Plug and Play | near Borough (474 m) | https://getpenfold.com | sources: [funding](https://getpenfold.com/about-us), [growth](https://www.fast50.co.uk/fast50/winners/2025/), [address](https://getpenfold.com/about-us), [presence](https://getpenfold.com) - **PensionBee** (`pensionbee`): LSE-listed online pension provider that combines and manages people's pensions in the UK and US. Fintech / Pensions | Fastest growing | Southwark SE1 8NL | founded 2014 | last round Equity raise, £20M, Oct 2024 | Companies House 13172844 | incorporated 2021-02-02 | SIC 64205 | London HQ | near Southwark (110 m) | https://www.pensionbee.com | sources: [funding](https://en.wikipedia.org/wiki/PensionBee), [growth](https://en.wikipedia.org/wiki/PensionBee), [address](https://www.pensionbee.com/uk), [presence](https://www.linkedin.com/company/pensionbee) - **Perenna** (`perenna`): Perenna is a UK bank offering long-term fixed-rate mortgages funded through covered bonds and savings deposits. Fintech / Mortgage lending | Up and coming | Camden WC1A 2SL | raised $90M | last round Equity round, $52M, Sep 2023 | Companies House 13084174 | incorporated 2020-12-16 | SIC 64191 | London HQ | backed by Silverstripe | near Holborn (269 m) | https://perenna.com | sources: [funding](https://www.cityam.com/?p=2050364), [growth](https://www.financialreporter.co.uk/perenna-secures-new-funding-for-mortgage-product-expansion.html), [address](https://perenna.com), [presence](https://perenna.com) - **Plum** (`plum`): Money app that automates saving and investing for users in the UK and several EU countries. Fintech / Savings app | Fastest growing | Islington EC1R 0DE | founded 2016 | last round Series B, £16M, Jul 2024 | Companies House 09952199 | incorporated 2016-01-14 | SIC 66190 | hiring 8 in London | licensed visa sponsor | work model hybrid (8 London job posts) | London HQ | on Deloitte UK Technology Fast 50 2024, #49; Deloitte UK Technology Fast 50 2023, #25 | backed by iGrow Venture Capital, Ventura Capital, VentureFriends | near Farringdon (332 m) | https://withplum.com | sources: [funding](https://www.financemagnates.com/fintech/this-fintech-startup-just-raised-16m-and-tripled-aum-to-1b-in-a-year/), [growth](https://withplum.com/press/plum-reaches-profitability), [address](https://craft.co/plum), [presence](https://builtinlondon.uk/company/plum-withplum) - **Pollinate** (`pollinate`): A white-label platform banks use to onboard and serve small business merchant services customers. Fintech / Merchant services | Up and coming | City of London EC4N 6AS | last round Series C, $50M, Mar 2021 | Companies House 11387606 | incorporated 2018-05-30 | SIC 74909 | London HQ | backed by Insight Partners, EFM Asset Management, Mastercard, Motive Partners, National Australia Bank, NatWest | near Monument (89 m) | https://www.pollinate.global | sources: [funding](https://www.retailbankerinternational.com/news/uk-based-fintech-pollinate-raises-50m-in-series-c/), [growth](https://www.pollinate.global), [address](https://www.pollinate.global), [presence](https://www.retailbankerinternational.com/news/uk-based-fintech-pollinate-raises-50m-in-series-c/) - **PPRO** (`ppro`): Local payment methods infrastructure for payment providers and merchants, covering 85+ markets. Fintech / Payments Infrastructure | Well known | Camden WC1V 6NX | founded 2006 | last round $180M, Jan 2021 | Companies House 07653641 | incorporated 2011-06-01 | SIC 64999 | licensed visa sponsor | London HQ | backed by Eurazeo Growth, Citi Ventures, HPE Growth, Sprints Capital, Wellington Management | near Holborn (124 m) | https://www.ppro.com | sources: [growth](https://www.businesswire.com/news/home/20210119005167/en/PPRO-Raises-180-Million-for-the-Next-Era-of-Local-Payments-Infrastructure-Is-Now-Valued-Over-1-Billion), [address](https://jobs.ashbyhq.com/ppro/d491d1e1-0b93-45da-a710-60afe10a08ed), [presence](https://linkedin.com/company/ppro) - **Primer** (`primer`): Unified payments infrastructure letting merchants connect, optimise and manage many payment providers from one platform. Fintech / Payments Orchestration | Fastest growing | City of London EC2M 4LN | founded 2019 | raised $170M | last round Series C, $100M, May 2026 | Companies House 12355212 | incorporated 2019-12-09 | SIC 62020 | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2026, #81; LinkedIn Top Startups UK 2024, #18 | backed by Sofina, Accel, Balderton Capital, ICONIQ, Peak XV Partners, Speedinvest, Tencent | near Liverpool Street (203 m) | https://primer.io | sources: [funding](https://fintech.global/2026/05/20/primer-raises-100m-series-c-to-power-ai-payments/), [growth](https://fintech.global/2026/05/20/primer-raises-100m-series-c-to-power-ai-payments/), [address](https://primer.io), [presence](https://craft.co/primer-863) - **Proxymity** (`proxymity`): Proxymity runs a digital network that connects issuers, intermediaries and investors for proxy voting and shareholder identification. Fintech / Proxy voting | Fastest growing | City of London EC2N 2DL | last round Series C, $36M, Jul 2025 | Companies House 12569600 | incorporated 2020-04-23 | SIC 58290 | licensed visa sponsor | London HQ | backed by Mitsubishi UFJ Trust and Banking | near Moorgate (274 m) | https://www.proxymity.io | sources: [funding](https://www.proxymity.io/?p=2758), [growth](https://www.financialcontent.com/article/accwirecq-2025-7-17-proxymity-welcomes-new-consortium-member-mitsubishi-ufj-trust-and-banking-corporation-as-they-lead-the-closing-of-a-36-million-series-c-investment-round), [address](https://www.proxymity.io/contact/), [presence](https://blackfintech.substack.com/p/blackfin-tech-weekly-july-21st-2025) - **QFEX** (`qfex`): 24/7 exchange offering perpetual futures on US equities, commodities and FX without a broker. Fintech / Trading Exchange | Up and coming | Islington EC1V 2NX | founded 2025 | last round Seed, $9.5M, Mar 2026 | Companies House 16449272 | incorporated 2025-05-14 | 3 staff in filed accounts (period to 2025-12-31) | SIC 66110 | licensed visa sponsor | London HQ | Y Combinator X25 | backed by General Catalyst, Y Combinator | near Old Street (146 m) | https://qfex.com | sources: [funding](https://fintech.global/2026/03/05/qfex-launches-with-9-5m-seed-round-to-disrupt-global-trading/), [growth](https://fintech.global/2026/03/05/qfex-launches-with-9-5m-seed-round-to-disrupt-global-trading/), [address](https://find-and-update.company-information.service.gov.uk/company/16449272), [presence](https://find-and-update.company-information.service.gov.uk/company/16449272) - **Qube Research & Technologies** (`qube-research-technologies`): Quantitative investment manager that runs systematic trading strategies built on data, research and its own technology platform. Fintech / Quant investing | Well known | Westminster SW1E 5BY | founded 2016 | Companies House 09867306 | incorporated 2015-11-11 | SIC 66300 | licensed visa sponsor | London HQ | near Victoria (224 m) | https://www.qube-rt.com | sources: [growth](https://en.wikipedia.org/wiki/Qube_Research_%26_Technologies), [address](https://www.qube-rt.com/contact-us), [presence](https://en.wikipedia.org/wiki/Qube_Research_%26_Technologies) - **Ralio** (`ralio`): Guardrails, identity and audit layer that checks AI agent payments against company rules before they go out. Fintech (also AI) / Agentic payments | Up and coming | Tower Hamlets E1 5JL | founded 2025 | raised $2.5M | last round Pre-seed, $2.5M, Apr 2026 (led by Sure Valley Ventures) | Companies House 16546335 | incorporated 2025-06-27 | SIC 82990 | London HQ | Antler | backed by Sure Valley Ventures, Adeline Arts and Science, Antler, Campus Fund, Endurance Ventures, Love Ventures, Plug and Play, rule30, Seed X | near Shoreditch High Street (473 m) | https://ralio.co | sources: [funding](https://ralio.substack.com/p/ralio-raises-25m-in-europes-largest), [growth](https://ralio.substack.com/p/ralio-raises-25m-in-europes-largest), [address](https://ralio.co/privacy-policy), [presence](https://ralio.co/privacy-policy) - **Raylo** (`raylo`): Subscription and leasing platform for phones, laptops and consumer electronics, with brand partners like PlayStation, LG and Dyson. Fintech / Device Subscriptions | Up and coming | City of London EC4A 3TW | founded 2018 | last round £10M equity, Jan 2026 | Companies House 11554120 | incorporated 2018-09-05 | SIC 82990 | licensed visa sponsor | London HQ | on Tech Nation Future Fifty 2025 | backed by Citi | near Chancery Lane (373 m) | https://www.raylo.com | sources: [funding](https://cfotech.co.uk/story/raylo-raises-gbp-30m-seals-lg-uk-subscription-deal), [growth](https://www.arr.club/raylo/raylo-arr-surpasses-100m-with-60-yoy-growth), [address](https://www.raylo.com), [presence](https://www.raylo.com) - **Revolut** (`revolut`): Global finance super-app for banking, payments, investing and crypto, with a full UK banking licence. Fintech / Neobank | Well known | Tower Hamlets E14 5HX | founded 2015 | last round Secondary share sale, $115B valuation, Jul 2026 | Companies House 08804411 | incorporated 2013-12-06 | SIC 62090 | licensed visa sponsor | London HQ | backed by SoftBank Vision Fund, Tiger Global | near West India Quay (149 m) | https://www.revolut.com | sources: [funding](https://en.wikipedia.org/wiki/Revolut), [growth](https://en.wikipedia.org/wiki/Revolut), [address](https://find-and-update.company-information.service.gov.uk/company/08804411), [presence](https://en.wikipedia.org/wiki/Revolut) - **Ripjar** (`ripjar`): Ripjar sells AI software that screens customers and transactions against sanctions, PEP, watchlist and adverse media data. Fintech / Financial crime screening | Up and coming | Lambeth SE1 8UL | last round Series B, £28M, Sep 2021 | Companies House 08217339 | incorporated 2012-09-17 | SIC 62012 | licensed visa sponsor | London office, HQ elsewhere | backed by Long Ridge Equity Partners | near Waterloo (272 m) | https://ripjar.com | sources: [funding](https://cdn.soglos.com/news/business/multi-million-investment-continues-to-drive-growth-at-ripjar/20330/), [growth](https://coverager.com/long-ridge-equity-partners-backs-ripjar/), [address](https://ripjar.com/contact), [presence](https://ripjar.com/contact) - **Round** (`round`): Treasury, payments and finance automation platform that helps businesses manage and earn on their cash. Fintech / Treasury management | Up and coming | Hackney E2 8JF | founded 2023 | raised $6M+ | last round Seed, $6M, Apr 2026 | Companies House 14609702 | incorporated 2023-01-23 | 7 staff in filed accounts (period to 2025-11-30) | SIC 66190 | licensed visa sponsor | London HQ | backed by Alstin Capital, BACKED VC, Love Ventures, Passion Capital | near Hoxton (150 m) | https://roundtreasury.com | sources: [funding](https://roundtreasury.com/post/round-raises-6m-to-build-the-ai-powered-finance-automation-platform-for-modern-finance-teams), [growth](https://roundtreasury.com/post/round-raises-6m-to-build-the-ai-powered-finance-automation-platform-for-modern-finance-teams), [address](https://roundtreasury.com), [presence](https://siliconcanals.com/london-based-round-bags-1-9m/) - **Runa** (`runa`): Payouts platform that lets businesses send gift cards, prepaid cards and bank transfers to recipients in 190 countries through one API. Fintech / Payouts | Up and coming | Hackney EC2A 3EJ | founded 2016 | last round Series B, £26M, Nov 2022 | Companies House 09281949 | incorporated 2014-10-27 | SIC 62012 | hiring 1 in London | licensed visa sponsor | London HQ | backed by Element Ventures, AlbionVC, Clocktower Ventures, CommerzVentures, SAP, Volution | near Shoreditch High Street (225 m) | https://runa.io | sources: [funding](https://runa.io/blog/wegift-announce-series-b), [growth](https://runa.io/wp-content/uploads/2026/03/Runa-Boilerplate.pdf), [address](https://runa.io/about), [presence](https://runa.io/about) - **Salary Finance** (`salary-finance`): Employee benefits platform offering salary-linked loans, earned pay advances, automatic savings and financial education through employers. Fintech / Financial wellbeing | Up and coming | Hammersmith and Fulham W12 7RZ | founded 2015 | Companies House 09677777 | incorporated 2015-07-09 | SIC 66190 | hiring 3 in London | licensed visa sponsor | London HQ | backed by Legal & General, Blenheim Chalcot | near White City (250 m) | https://www.salaryfinance.com | sources: [funding](https://the-cfo.io/?p=76786), [growth](https://www.salaryfinance.com/uk/about-us/), [address](https://www.salaryfinance.com/uk/about-us/), [presence](https://www.salaryfinance.com/uk/about-us/) - **Saturn** (`saturn`): AI platform that automates admin and compliance paperwork for financial advice firms. Fintech (also AI) / AI for financial advisers | Up and coming | City of London E1 7LS | founded 2023 | raised $15M+ | last round Series A, $15M, Oct 2025 | Companies House 15078984 | incorporated 2023-08-17 | 11 staff in filed accounts (period to 2025-08-31) | SIC 62012 | licensed visa sponsor | London HQ | Y Combinator S24 | backed by Singular, Shapers, Y Combinator, Zeno Ventures | near Liverpool Street (340 m) | https://www.saturnos.com | sources: [funding](https://saturnos.com/journal/saturn-15m-series-a-to-make-quality-financial-advice-accessible), [growth](https://saturnos.com/journal/saturn-15m-series-a-to-make-quality-financial-advice-accessible), [address](https://www.saturnos.com/about-us), [presence](https://siliconcanals.com/saturn-bags-e12-9m/) - **SeedLegals** (`seedlegals`): Online platform that lets startups run funding rounds, manage cap tables and set up share option schemes. Fintech / Startup legal | Up and coming | Islington EC1Y 8ND | founded 2016 | last round Series A, $4M, May 2019 | Companies House 10368887 | 155 staff in filed accounts (period to 2025-12-31) | licensed visa sponsor | London HQ | backed by Index Ventures, Kima Ventures, Seedcamp, The Family | near Old Street (326 m) | https://seedlegals.com | sources: [funding](https://www.pymnts.com/news/investment-tracker/2019/seedlegals-startups-funding/), [growth](https://seedlegals.com/about.md), [address](https://seedlegals.com/about.md), [presence](https://seedlegals.com/about.md) - **Sequence** (`sequence`): Billing and quote-to-cash software that automates invoicing and revenue collection for B2B finance teams. Fintech / Billing automation | Fastest growing | Camden WC1B 3JA | founded 2021 | raised $38M | last round Series A, $20M, Dec 2025 | Companies House 13585168 | incorporated 2021-08-25 | 16 staff in filed accounts (period to 2025-12-31) | SIC 62090 | hiring 4 in London | licensed visa sponsor | work model hybrid (4 London job posts) | London HQ | backed by 645 Ventures, Andreessen Horowitz, Dig Ventures, firstminute capital, Passion Capital, Vor Capital | near Goodge Street (307 m) | https://www.sequencehq.com | sources: [funding](https://www.sequencehq.com/blog/sequence-announces-series-a), [growth](https://www.sequencehq.com/blog/sequence-announces-series-a), [address](https://sequencehq.notion.site/London-office-f58ca9988cf443319badde723aa8fe36), [presence](https://sifted.eu/articles/andreessen-fintech-sequence-19m-seed) - **Sharegain** (`sharegain`): Sharegain provides securities lending as a service so brokers, private banks and custodians can lend out clients' stocks, bonds and ETFs for income. Fintech / Securities lending | Up and coming | City of London EC3A 3DE | founded 2015 | raised $75M | last round Series B, $64M, Feb 2022 | Companies House 09600298 | incorporated 2015-05-20 | SIC 66190 | licensed visa sponsor | London HQ | backed by WestCap, Blumberg Capital, Citi, EJF Capital, Maverick Ventures Israel, Optiver, Rhodium, SixThirty | near Aldgate (185 m) | https://www.sharegain.com | sources: [funding](https://www.calcalistech.com/articles/0,7340,L-3929508,00.html), [growth](https://sharegain.com/press-release/velox-clearing-choose-sharegain-to-launch-fully-paid-securities-lending/), [address](https://www.sharegain.com), [presence](https://builtinlondon.uk/company/sharegain) - **Shufti** (`shufti`): Shufti provides identity verification, KYC and AML screening software for businesses onboarding customers online. Fintech / Identity verification | Up and coming | Tower Hamlets E1 7NF | founded 2017 | last round Series A, $20M, Mar 2022 | Companies House 11039567 | incorporated 2017-10-31 | 5 staff in filed accounts (period to 2024-12-31) | SIC 62012, 63110 | licensed visa sponsor | London HQ | backed by Updata Partners | near Aldgate East (401 m) | https://shuftipro.com | sources: [funding](https://updata.com/updata-leads-investment-in-shufti-pro/), [growth](https://updata.com/updata-leads-investment-in-shufti-pro/), [address](https://shuftipro.com/about-us/), [presence](https://updata.com/updata-leads-investment-in-shufti-pro/) - **Sikoia** (`sikoia`): AI platform that automates document processing, income verification and affordability checks for lenders and brokers. Fintech / Customer Verification | Up and coming | Westminster SW1W 9NF | founded 2020 | raised $6M | last round Seed, $6M, Feb 2023 | Companies House 12916085 | incorporated 2020-09-30 | 10 staff in filed accounts (period to 2025-09-30) | SIC 62090 | London HQ | backed by Earlybird Venture Capital, MMV Europe & Asia-Pacific, Seedcamp, The Delta | near Victoria (395 m) | https://sikoia.com | sources: [funding](https://www.vcbacked.co/company/sikoia), [growth](https://sikoia.com), [address](https://sikoia.com), [presence](https://sikoia.com) - **Smart** (`smart`): Retirement savings technology platform running workplace pensions and licensing its Keystone tech to providers worldwide. Fintech / Pensions Tech | Well known | Westminster W1H 5LD | founded 2014 | last round Series D, £165M, Jun 2021 | Companies House 09026697 | incorporated 2014-05-07 | SIC 63990 | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2024, #30; Deloitte UK Technology Fast 50 2023, #31 | backed by Chrysalis Investments | near Marble Arch (452 m) | https://www.smart.co | sources: [growth](https://www.linkedin.com/company/smart-pension), [address](https://www.smart.co/careers), [presence](https://www.crowdfundinsider.com/2023/05/207206-london-fintech-smart-which-focuses-on-retirement-savings-market-secures-funding-via-series-e/) - **Sokin** (`sokin`): Global business payments platform with multi-currency accounts, FX and cross-border payouts for companies. Fintech / B2B Payments | Fastest growing | City of London EC2M 7PY | founded 2019 | last round Series B, $50M, Dec 2025 | Companies House 10958599 | incorporated 2017-09-12 | SIC 64999 | London HQ | backed by Prysm Capital, Aurum Partners, Morgan Stanley Expansion Capital, Watershed Ventures | near Liverpool Street (82 m) | https://www.sokin.com | sources: [funding](https://www.businesswire.com/news/home/20251201036084/en/Sokin-Raises-$50M-Series-B-Following-100-Year-on-Year-Growth), [growth](https://www.sokin.com/news/sokin-raises-50m-series-b-following-100-year-on-year-growth), [address](https://careers.sokin.com/jobs/8494904-senior-fp-a-analyst-london), [presence](https://www.linkedin.com/company/sokin) - **Soldo** (`soldo`): Company prepaid cards and spend management software giving staff controlled spending and finance teams oversight. Fintech / Spend management | Up and coming | Westminster NW1 5PU | founded 2015 | last round Series C, $180M, Jul 2021 | Companies House 09233754 | incorporated 2014-09-24 | SIC 82990 | licensed visa sponsor | London HQ | backed by Temasek, Accel, Advent International, Battery Ventures, Citi Ventures, Dawn Capital, Sunley House Capital | near Marylebone (128 m) | https://www.soldo.com | sources: [funding](https://www.soldo.com/en-gb/about-us/), [growth](https://www.soldo.com/en-gb/about-us/), [address](https://www.soldo.com/en-gb/about-us/), [presence](https://www.soldo.com/en-gb/about-us/) - **Sprive** (`sprive`): Sprive is an app that helps homeowners pay off their mortgage faster through automatic overpayments, partly funded by cashback from everyday shopping. Fintech / Mortgage app | Up and coming | City of London EC4N 6AF | founded 2019 | raised £13.3M (~$16.9M) | last round Series A, $10M, Sep 2026 | Companies House 12102682 | incorporated 2019-07-15 | 4 staff in filed accounts (period to 2025-07-31) | SIC 62012 | London HQ | backed by Active Partners, Ascension, Channel 4 Ventures, Rank Ventures, Velocity EIS Technology Fund | near Cannon Street (13 m) | https://www.sprive.com | sources: [funding](https://www.vestbee.com/insights/articles/top-european-funding-rounds-closed-in-september-2026), [growth](https://www.under30ceo.com/series-a-funding-lessons-profitable-raise/), [address](https://www.sprive.com), [presence](https://www.vestbee.com/insights/articles/top-european-funding-rounds-closed-in-september-2026) - **Starling Bank** (`starling-bank`): Licensed UK digital bank that also sells its Engine banking software to other banks. Fintech / Neobank | Well known | Tower Hamlets E1 6PW | founded 2014 | raised £500M+ (~$635M) | last round £272M, Mar 2021 | Companies House 09092149 | incorporated 2014-06-18 | SIC 64191 | licensed visa sponsor | London HQ | backed by Fidelity, Merian Global Investors, Millennium Management, Qatar Investment Authority | near Aldgate East (472 m) | https://www.starlingbank.com | sources: [funding](https://en.wikipedia.org/wiki/Starling_Bank), [growth](https://en.wikipedia.org/wiki/Starling_Bank), [address](https://find-and-update.company-information.service.gov.uk/company/09092149), [presence](https://en.wikipedia.org/wiki/Starling_Bank) - **Storfund** (`storfund`): Pays online marketplace sellers immediately for their sales instead of making them wait for marketplace payouts. Fintech / Ecommerce payouts | Up and coming | Westminster SW1H 0QS | founded 2018 | raised £326.5M (~$414.7M) | last round Financing deal, £300M, Oct 2021 | Companies House 11135497 | incorporated 2018-01-05 | 16 staff in filed accounts (period to 2025-12-31) | SIC 62090 | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2024, #68 | near St. James's Park (159 m) | https://www.storfund.com/ | sources: [funding](https://tech.eu/2021/10/27/london-based-factoring-startup-storfund-closes-300-million-deal/), [growth](https://tech.eu/2021/10/27/london-based-factoring-startup-storfund-closes-300-million-deal/), [address](https://www.storfund.com/), [presence](https://www.storfund.com/) - **Stream** (`stream`): Workplace finance app giving employees earned-wage access, savings, pensions and budgeting tools through their employer. Fintech / Earned wage access | Fastest growing | Westminster W1T 1LY | founded 2018 | raised $228M | last round Series D, $90M, Jan 2026 | Companies House 11173225 | incorporated 2018-01-29 | SIC 62090 | licensed visa sponsor | London HQ | backed by Sofina, Ascension, Balderton Capital, Better Society Capital, British Business Bank, LocalGlobe, Northzone, Smash Capital | near Goodge Street (322 m) | https://stream.co | sources: [funding](https://stream.co/en/articles/stream-raises-90m-in-series-d-funding-to-redefine-workplace-finance), [growth](https://stream.co/en/articles/stream-raises-90m-in-series-d-funding-to-redefine-workplace-finance), [address](https://stream.co/en), [presence](https://www.cbinsights.com/company/wagestream) - **Suade Labs** (`suade-labs`): Software that automates regulatory reporting and capital calculations for banks and building societies. Fintech / Regtech | Up and coming | Camden EC1N 8UN | founded 2014 | last round Series A, undisclosed, Nov 2021 | Companies House 09197033 | incorporated 2014-08-31 | 80 staff in filed accounts (period to 2025-12-31) | SIC 62012 | hiring 7 in London | licensed visa sponsor | work model mixed (7 London job posts) | London HQ | backed by North Island | near Farringdon (197 m) | https://suade.org | sources: [funding](https://fintech.global/2021/11/17/ai-powered-regtech-suade-labs-collects-series-a/), [growth](https://suade.org/), [address](https://suade.org/), [presence](https://suade.org/) - **Sumsub** (`sumsub`): Identity verification, KYC, KYB, transaction monitoring and fraud prevention platform used by 4,000+ companies. Fintech / Identity Verification | Well known | City of London EC3A 8BF | founded 2015 | Companies House 09688671 | incorporated 2015-07-16 | SIC 74909 | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2024, #17 | backed by MetaQuotes | near Aldgate (330 m) | https://sumsub.com | sources: [growth](https://find-and-update.company-information.service.gov.uk/company/09688671/filing-history/MzUzMDYwNjcwOGFkaXF6a2N4/document?format=pdf&download=0), [address](https://sumsub.com/contact-us/), [presence](https://builtinlondon.uk/company/sumsub) - **SumUp** (`sumup`): Card readers, point-of-sale and business accounts for small merchants. Fintech / Merchant payments | Well known | Southwark SE1 9HZ | founded 2012 | last round €590M debt and equity round, Jun 2022 | Companies House 07836562 | incorporated 2011-11-07 | SIC 63110, 64999 | hiring 18 in London | licensed visa sponsor | London HQ | backed by Bain Capital Tech Opportunities, BlackRock, btov Partners, Centerbridge Partners, Crestline, Fin Capital, Sentinel Dome Partners | near Mansion House (628 m) | https://www.sumup.com | sources: [funding](https://sumup.com/press/global-fintech-sumup-raises-590-million-euros/), [growth](https://www.sumup.com/en-gb/about-us/), [address](https://find-and-update.company-information.service.gov.uk/company/07836562/filing-history), [presence](https://en.wikipedia.org/wiki/SumUp) - **Superscript** (`superscript`): Digital insurance broker selling business insurance to small firms and high-growth tech companies. Fintech / Insurtech | Up and coming | City of London EC3M 1BD | last round Series B, £45M, Jan 2023 | Companies House 09265254 | incorporated 2014-10-15 | SIC 66220 | licensed visa sponsor | London HQ | backed by BHL UK, The Hartford | near Monument (126 m) | https://gosuperscript.com | sources: [funding](https://www.cityam.com/comparethemarket-owner-backs-london-insurtech-superscript-in-45m-funding-round/), [growth](https://www.cityam.com/comparethemarket-owner-backs-london-insurtech-superscript-in-45m-funding-round/), [address](https://find-and-update.company-information.service.gov.uk/company/09265254), [presence](https://www.cityam.com/comparethemarket-owner-backs-london-insurtech-superscript-in-45m-funding-round/) - **Tandem Bank** (`tandem-bank`): Digital bank offering savings, mortgages and loans, with a focus on green home improvement lending. Fintech (also Climate) / Digital bank | Well known | Camden WC1A 2SL | founded 2014 | Companies House 00955491 | incorporated 1969-06-04 | SIC 64191 | licensed visa sponsor | London office, HQ elsewhere | backed by Qatar Investment Authority | near Holborn (269 m) | https://www.tandem.co.uk | sources: [growth](https://www.cityam.com/?p=2325475), [address](https://www.tandem.co.uk/newsroom/tandem-bank-takes-a-fintech-leap-with-new-london-office), [presence](https://job-boards.greenhouse.io/tandemmoneylimited/jobs/8613212002) - **Tangible** (`tangible`): AI-powered platform that helps hardware and climate companies raise and manage debt financing. Fintech / Hardtech debt financing | Up and coming | Hackney E1 6HU | founded 2021 | raised $4.3M+ | last round Seed, $4.3M, Feb 2026 | Companies House 13253794 | incorporated 2021-03-09 | 5 staff in filed accounts (period to 2025-03-31) | SIC 58290 | licensed visa sponsor | London HQ | backed by Pale Blue Dot, Aperture, Future Positive Capital, MMC Ventures, Prototype Capital, SDAC, Unruly | near Shoreditch High Street (195 m) | https://www.tangible.finance | sources: [funding](https://tech.eu/2026/02/12/london-fintech-tangible-raises-4-3m-in-seed-funding/), [growth](https://tech.eu/2026/02/12/london-fintech-tangible-raises-4-3m-in-seed-funding/), [address](https://www.tangible.finance/company), [presence](https://www.tangible.finance/company) - **Taptap Send** (`taptap-send`): Mobile app for sending money internationally to friends and family in emerging markets. Fintech / Remittances | Up and coming | Islington EC1Y 1AA | founded 2018 | last round Series B, $65M, Dec 2021 | Companies House 10416468 | incorporated 2016-10-07 | SIC 64999 | hiring 19 in London | licensed visa sponsor | work model on-site (11 London job posts) | London office, HQ elsewhere | backed by Canaan Partners, Spark Capital, Unbound, Breyer Capital, Flourish Ventures, Slow Ventures, Wamda Capital | near Old Street (337 m) | https://www.taptapsend.com | sources: [funding](https://techcrunch.com/2021/12/20/taptap-send-raises-65m-to-build-cross-border-remittances-focused-on-the-most-underserved-markets/), [growth](https://techcrunch.com/2021/12/20/taptap-send-raises-65m-to-build-cross-border-remittances-focused-on-the-most-underserved-markets/), [address](https://find-and-update.company-information.service.gov.uk/company/10416468), [presence](https://www.taptapsend.com/en/careers) - **Tembo** (`tembo`): Savings and mortgage app that helps first-time buyers build a deposit and get onto the property ladder. Fintech / Homebuying Savings | Fastest growing | Southwark SE1 3JW | founded 2020 | last round Growth round, GBP16M, Feb 2026 | Companies House 12631312 | incorporated 2020-05-29 | 57 staff in filed accounts (group, period to 2024-11-30) | SIC 62090 | London HQ | Founders Factory | on Sifted 100 UK & Ireland 2026, #62; Tech Nation Future Fifty 2025; Sifted 100 UK & Ireland 2024, #12 | backed by Gresham House Ventures, Ascension, Aviva Investors, Goodwater Capital, Love Ventures, McPike Family Office | near London Bridge (538 m) | https://www.tembomoney.com | sources: [funding](https://fintech.global/2026/02/13/savings-and-mortgage-app-tembo-bags-16m/), [growth](https://fintech.global/2026/02/13/savings-and-mortgage-app-tembo-bags-16m/), [address](https://www.tembomoney.com/careers), [presence](https://www.tembomoney.com/) - **Teya** (`teya`): Card payments, business accounts and funding for small local businesses across Europe, formerly SaltPay. Fintech / Merchant Payments | Well known | City of London EC2R 7HF | founded 2019 | Companies House 12271069 | incorporated 2019-10-18 | SIC 62020, 70229 | hiring 54 in London | licensed visa sponsor | work model mixed (13 London job posts) | London HQ | on Sifted 100 UK & Ireland 2026, #91; LinkedIn Top Startups UK 2023, #17 | backed by Accel, BlackRock, HOF Capital, Ribbit Capital, Wellington Management | near Bank (171 m) | https://www.teya.com | sources: [growth](https://www.linkedin.com/company/teya-global/), [address](https://www.teya.com), [presence](https://tcv.com/partnerships/teya) - **Thirdfort** (`thirdfort`): ID verification, AML and source of funds checks for property, legal and accounting firms. Fintech / AML And ID Verification | Up and coming | Southwark SE1 0HG | founded 2017 | raised £25M (~$31.8M) | last round Series A2, £5M, 2024 | Companies House 10757456 | incorporated 2017-05-08 | SIC 62012 | licensed visa sponsor | London HQ | backed by Breega, Element Ventures, 13books Capital | near Southwark (385 m) | https://www.thirdfort.com | sources: [funding](https://www.thirdfort.com/about), [growth](https://www.thirdfort.com/about), [address](https://www.linkedin.com/company/thirdfort), [presence](https://www.thirdfort.com/careers) - **Thought Machine** (`thought-machine`): Cloud-native core banking software (Vault) used by large banks to replace legacy systems. Fintech / Core banking software | Well known | Camden WC1N 1EX | founded 2014 | raised $510M | last round Series D, $160M, 2022 | Companies House 11114277 | incorporated 2017-12-15 | SIC 62012 | hiring 17 in London | licensed visa sponsor | work model hybrid (17 London job posts) | London HQ | backed by Molten Ventures, Temasek, British Business Bank, Eurazeo, Intesa Sanpaolo, Lloyds Banking Group, Morgan Stanley, SEB | near Russell Square (117 m) | https://www.thoughtmachine.net | sources: [funding](https://en.wikipedia.org/wiki/Thought_Machine), [growth](https://en.wikipedia.org/wiki/Thought_Machine), [address](https://www.thoughtmachine.net/contact), [presence](https://en.wikipedia.org/wiki/Thought_Machine) - **Thredd** (`thredd`): Issuer processing platform that lets fintechs and banks launch and run debit, credit, prepaid and virtual card programmes globally. Fintech / Issuer processing | Up and coming | Westminster WC2B 6UF | founded 2007 | last round Growth equity, $300M, Oct 2021 | Companies House 09926803 | incorporated 2015-12-22 | SIC 96090 | licensed visa sponsor | London HQ | backed by Advent International, Mastercard, MissionOG, Temasek, Viking Global Investors, Visa | near Holborn (407 m) | https://www.thredd.ai | sources: [funding](https://fintechnews.sg/?p=56343), [growth](https://www.thredd.ai/company), [address](https://www.thredd.ai/), [presence](https://www.thredd.ai/company) - **Tide** (`tide`): Business current accounts and admin tools for small businesses in the UK, India and Germany. Fintech / SME business banking | Well known | Islington EC1Y 2AL | founded 2015 | last round Growth round led by TPG, $120M, Sep 2025 | Companies House 09595646 | incorporated 2015-05-18 | SIC 58290 | licensed visa sponsor | London HQ | backed by TPG, Apax Digital | near Old Street (182 m) | https://www.tide.co | sources: [funding](https://fintech.global/2025/09/22/tide-raises-120m-from-tpg-at-1-5bn-valuation/), [growth](https://fintech.global/2025/09/22/tide-raises-120m-from-tpg-at-1-5bn-valuation/), [address](https://www.tide.co/contact/), [presence](https://www.linkedin.com/company/tide-banking) - **Timeline** (`timeline`): Planning software, model portfolios and investment platform for UK financial advisers. Fintech / Wealthtech | Fastest growing | City of London EC3V 0HR | founded 2018 | raised £17.3M (~$22M) | Companies House 11405676 | incorporated 2018-06-08 | SIC 58290, 62012 | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2026, #50 | backed by Blackfin Capital Partners, MTech Capital | near Monument (172 m) | https://www.timeline.co | sources: [funding](https://www.datocms-assets.com/60124/1774006698-sifted-100-uk-ireland-2026.pdf), [growth](https://www.datocms-assets.com/60124/1774006698-sifted-100-uk-ireland-2026.pdf), [address](https://www.linkedin.com/company/timeline-tech-limited), [presence](https://www.timeline.co/contact) - **Titanbay** (`titanbay`): Infrastructure for wealth managers and private banks to give clients access to private markets funds. Fintech / Private Markets | Fastest growing | Westminster W1W 8BF | founded 2019 | raised £53.8M (~$68.3M) | Companies House 12175760 | incorporated 2019-08-27 | 49 staff in filed accounts (period to 2025-12-31) | SIC 64999 | London HQ | on Sifted 100 UK & Ireland 2026, #90; LinkedIn Top Startups UK 2023, #12 | backed by abrdn, Motive Partners, FNZ | near Oxford Circus (287 m) | https://www.titanbay.com | sources: [funding](https://www.datocms-assets.com/60124/1774006698-sifted-100-uk-ireland-2026.pdf), [growth](https://www.datocms-assets.com/60124/1774006698-sifted-100-uk-ireland-2026.pdf), [address](https://www.titanbay.com), [presence](https://www.titanbay.com) - **Token.io** (`token-io`): Account-to-account payment infrastructure that lets banks, fintechs and payment companies offer Pay by Bank, variable recurring payments and payouts through one API. Fintech / Open banking payments | Up and coming | Camden WC1N 2EB | founded 2015 | raised $90M | last round Series C, $40M, May 2022 | Companies House 10143662 | incorporated 2016-04-24 | 38 staff in filed accounts (period to 2025-12-31) | SIC 62012 | licensed visa sponsor | London HQ | backed by Cota Capital, TempoCap, Element Ventures, HSBC, MissionOG, Octopus Ventures, Opera Tech Ventures, PostFinance, SBI Investment | near Chancery Lane (510 m) | https://token.io | sources: [funding](https://finovate.com/token-raises-40-million-for-open-banking/), [growth](https://www.openbankingexpo.com/news/token-io-announces-strategic-investment-from-hsbc/), [address](https://find-and-update.company-information.service.gov.uk/company/10143662), [presence](https://builtinlondon.uk/company/tokenio) - **Trading 212** (`trading-212`): Commission-free app for trading and investing in stocks, ETFs and ISAs. Fintech / Retail investing | Well known | City of London EC4N 1TX | founded 2004 | last round Bootstrapped | Companies House 08590005 | incorporated 2013-06-28 | SIC 64999 | licensed visa sponsor | London HQ | near Mansion House (135 m) | https://www.trading212.com | sources: [growth](https://en.wikipedia.org/wiki/Trading_212), [address](https://ico.org.uk/ESDWebPages/Entry/ZA047741), [presence](https://en.wikipedia.org/wiki/Trading_212) - **TradingView** (`tradingview`): Web platform for financial charting, market data and trading ideas used by retail and professional traders. Fintech / Charting platform | Well known | Westminster W1D 4NQ | founded 2011 | last round $298M round led by Tiger Global, Oct 2021 | Companies House 14661644 | incorporated 2023-02-14 | SIC 82990 | hiring 4 in London | work model hybrid (3 London job posts) | London HQ | backed by Tiger Global | near Tottenham Court Road (125 m) | https://www.tradingview.com | sources: [funding](https://fintech-intel.com/funding/tradingview-hits-3-billion-valuation-with-298-million-investment/), [growth](https://fintech-intel.com/funding/tradingview-hits-3-billion-valuation-with-298-million-investment/), [address](https://find-and-update.company-information.service.gov.uk/company/14661644), [presence](https://www.linkedin.com/company/tradingview) - **TransferGo** (`transfergo`): App for sending money abroad, offering international transfers, multi-currency accounts and business payments in 160 countries. Fintech / Money transfers | Up and coming | Islington EC1V 9NR | founded 2012 | last round Series C, $50M, Sep 2021 | Companies House 07914165 | incorporated 2012-01-18 | SIC 64999 | licensed visa sponsor | London HQ | backed by Black River Ventures, Elbrus Capital | near Old Street (56 m) | https://www.transfergo.com | sources: [funding](https://thepaypers.com/payments/news/transfergo-raises-usd-50-million-in-series-c-funding), [growth](https://www.transfergo.com/en/about-us), [address](https://www.transfergo.com/en), [presence](https://www.transfergo.com/en/about-us) - **TransFICC** (`transficc`): Low-latency API connecting banks and asset managers to fixed income and derivatives trading venues. Fintech / Trading Infrastructure | Fastest growing | City of London EC2M 6UR | founded 2016 | raised $50M | last round Series B, $25M, Apr 2025 | Companies House 09869279 | incorporated 2015-11-12 | SIC 62090 | London HQ | on Tech Nation Future Fifty 2026 | backed by Citadel Securities, AlbionVC, BlackFin Tech, Citi, HSBC, Illuminate Financial, ING, neosfer | near Moorgate (99 m) | https://www.transficc.com | sources: [funding](https://transficc.com/news/transficc-secures-25-million-series-b-investment-led-by-citadel-securities-blackfin-tech-is-also-participating), [growth](https://transficc.com/news/transficc-secures-25-million-series-b-investment-led-by-citadel-securities-blackfin-tech-is-also-participating), [address](https://www.transficc.com/contact), [presence](https://builtinlondon.uk/company/transficc) - **Traydstream** (`traydstream`): AI platform that automates trade finance document checking, financing and risk workflows for banks and corporates. Fintech / Trade finance | Up and coming | Wandsworth SW18 4DX | founded 2016 | raised £24.2M (~$30.7M) | last round Interim round, $11M, Aug 2025 | Companies House 10138819 | incorporated 2016-04-21 | SIC 66190 | London HQ | on Sifted 100 UK & Ireland 2024, #74 | backed by Pivot Investment Partners, e& Capital, NeoVentures | near Southfields (1221 m) | https://www.traydstream.com/ | sources: [funding](https://content.sifted.eu/wp-content/uploads/2024/04/11080007/Sifted-100-UK-Ireland.pdf), [growth](https://www.cbinsights.com/investor/pivot-investment-partners), [address](https://www.traydstream.com/), [presence](https://www.traydstream.com/) - **TreasurySpring** (`treasuryspring`): Platform that lets institutions invest cash in fixed-term, investment-grade products through one onboarding. Fintech / Cash management | Up and coming | Westminster W1J 7BZ | founded 2016 | raised $42M | last round Series B, $29M, Jun 2023 | Companies House 10373508 | incorporated 2016-09-13 | SIC 64205 | London HQ | backed by Balderton Capital | near Green Park (425 m) | https://www.treasuryspring.com | sources: [funding](https://www.cfodive.com/news/fintech-startup-treasuryspring-raises-29m-amid-banking-chaos/653958/), [growth](https://www.treasuryspring.com), [address](https://find-and-update.company-information.service.gov.uk/company/10373508), [presence](https://www.cfodive.com/news/fintech-startup-treasuryspring-raises-29m-amid-banking-chaos/653958/) - **TRIVER** (`triver`): Advances cash to UK small businesses against their unpaid invoices, settling automatically when the customer pays. Fintech / SME invoice finance | Up and coming | Hammersmith and Fulham W14 0HL | founded 2022 | last round Series A, £14M, Sep 2025 | Companies House 14153437 | incorporated 2022-06-07 | SIC 62012, 64999 | licensed visa sponsor | London HQ | backed by AlleyCorp, Axeleo Capital, Inkberry Ventures, Stride VC | near Goldhawk Road (554 m) | https://triver.com | sources: [funding](https://fintech.global/?p=215765), [growth](https://fintech.global/?p=215765), [address](https://find-and-update.company-information.service.gov.uk/company/14153437), [presence](https://fintech.global/?p=215765) - **TrueLayer** (`truelayer`): Open banking payments network letting merchants take pay-by-bank payments across the UK and Europe. Fintech / Open banking payments | Well known | Islington EC2A 1PX | founded 2016 | last round $130M led by Tiger Global and Stripe, Sep 2021 | Companies House 10278251 | incorporated 2016-07-14 | SIC 62090 | hiring 1 in London | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2024, #72 | backed by eBay Ventures, Stripe, Tiger Global | near Moorgate (268 m) | https://truelayer.com | sources: [funding](https://truelayer.com/newsroom/announcements/130m-fundraise-to-accelerate-open-banking-payments/), [growth](https://truelayer.com/newsroom/announcements/ebay-partners-with-truelayer-to-offer-pay-by-bank-at-checkout/), [address](https://truelayer.com/privacy/), [presence](https://www.linkedin.com/company/truelayer) - **Updraft** (`updraft`): App that helps people pay down credit card debt with lower-cost loans and credit score tools. Fintech / Consumer Lending | Up and coming | Westminster W2 1AY | founded 2017 | last round Debt and equity, £108M (£8M equity), Dec 2022 | Companies House 10868865 | incorporated 2017-07-17 | SIC 64921 | hiring 4 in London | licensed visa sponsor | work model hybrid (4 London job posts) | London HQ | on Tech Nation Future Fifty 2025; Sifted 100 UK & Ireland 2024, #21 | backed by Auluk Investment, LC Nueva | near Edgware Road (Bakerloo) (261 m) | https://www.updraft.com | sources: [funding](https://businesscloud.co.uk/news/london-fintech-updraft-secures-108m-funding/), [growth](https://businesscloud.co.uk/news/tech-nations-latest-future-fifty-revealed-at-10-downing-street/), [address](https://www.updraft.com/contact), [presence](https://apply.workable.com/j/6F1417D30F) - **Urban Jungle** (`urban-jungle`): Digital home and contents insurer for renters and homeowners, using AI to price cover and fight fraud. Fintech / Insurtech | Up and coming | Lambeth SW9 6DE | founded 2016 | raised £43.3M (~$55M) | last round Follow-on, £11.2M, May 2024 | Companies House 10414152 | incorporated 2016-10-06 | SIC 66220 | licensed visa sponsor | London HQ | on Tech Nation Future Fifty 2025; Sifted 100 UK & Ireland 2024, #40; Deloitte UK Technology Fast 50 2024, #38; Deloitte UK Technology Fast 50 2023, #10 | backed by Sony Ventures | near Oval (222 m) | https://myurbanjungle.com | sources: [funding](https://www.insurancetimes.co.uk/news/sony-unit-backs-urban-jungle-as-it-raises-112m/1451787.article), [growth](https://www.insurancetimes.co.uk/news/ikea-enters-uk-home-insurance-with-urban-jungle-deal/1459286.article), [address](https://myurbanjungle.com/explore/careers/), [presence](https://tech.eu/2022/05/27/london-insurtech-urban-jungle-scores-ps165-million-for-european-expansion/) - **Velocity** (`velocity`): Stablecoin payments and treasury platform that lets banks, payment firms and businesses settle money instantly. Fintech (also Crypto) / Stablecoin payments | Fastest growing | Westminster W1F 0DQ | founded 2025 | raised $48M | last round Series A extension, $10M, Sep 2026 | London HQ | backed by Dragonfly, FirstMark, Activant Capital, Capital One Ventures, Circle Ventures, Coinbase, Haun Ventures, Mirana Ventures, QED Investors, Ripple, TransLink Capital, Visa Ventures, Wintermute | near Piccadilly Circus (397 m) | https://www.velocity.xyz | sources: [funding](https://fintech.global/2026/09/16/velocitys-series-a-swells-to-48m-as-banking-giants-circle-stablecoins/), [growth](https://fortune.com/2026/07/14/exclusive-payments-startup-velocity-38-million-businesses-stablecoin-growth/), [address](https://www.velocity.xyz/contact), [presence](https://www.fintechfutures.com/venture-capital-funding/velocity-38m-series-a) - **Verto** (`verto`): B2B cross-border payments and FX platform focused on emerging market currencies, especially Africa. Fintech / Cross-Border Payments | Fastest growing | City of London EC2M 2PF | founded 2017 | last round Series A, $10M, Sep 2021 | Companies House 10973066 | incorporated 2017-09-20 | SIC 62012, 64999 | licensed visa sponsor | London HQ | Y Combinator W19 | on Deloitte UK Technology Fast 50 2025, #42 | backed by Quona Capital, Accelerated Digital Ventures, Ace & Company, Middle East Venture Partners, P1 Ventures, TMT Investments, Treasury, Unicorn Growth Capital, Y Combinator, Zrosk Investment Management | near Liverpool Street (201 m) | https://www.verto.co | sources: [growth](https://www.fast50.co.uk/fast50/winners/2025/), [address](https://jobs.mevp.com/companies/vertofx/jobs/79036369-junior-fx-trader), [presence](https://www.cbinsights.com/company/vertofx) - **Vitesse** (`vitesse`): Treasury and payments platform for insurers that manages claim funds and pays claimants, vendors and reinsurers across the insurance value chain. Fintech / Insurance payments | Up and coming | City of London EC2V 6DN | founded 2014 | last round Series C, $93M, May 2024 | Companies House 08461258 | incorporated 2013-03-25 | SIC 64999 | hiring 5 in London | licensed visa sponsor | work model hybrid (5 London job posts) | London HQ | backed by KKR, Hannover Digital Investments | near Mansion House (231 m) | https://www.vitesse.io | sources: [funding](https://pulse2.com/vitesse-insurance-focused-treasury-and-payment-solutions-company-raises-93-million/amp/), [growth](https://www.vitesse.io/about), [address](https://www.vitesse.io/about), [presence](https://www.vitesse.io/about) - **Volt** (`volt`): Real-time account-to-account payment network and merchant accounts for businesses across the UK, EU and Australia. Fintech / Open Banking Payments | Up and coming | Camden WC1A 2SL | founded 2019 | last round Series B, $60M, Jun 2023 | Companies House 14234292 | incorporated 2022-07-14 | SIC 63110, 64999 | licensed visa sponsor | London HQ | on Tech Nation Future Fifty 2024; LinkedIn Top Startups UK 2024, #5 | backed by IVP, Augmentum Fintech, CommerzVentures, EQT Ventures, Fuel Ventures | near Holborn (269 m) | https://www.volt.io | sources: [funding](https://www.volt.io/about/), [growth](https://www.volt.io/about/), [address](https://www.volt.io/contact/), [presence](https://craft.co/volt-io) - **Wamo** (`wamo`): Digital business account for small businesses, offering business accounts, debit cards, currency exchange, invoicing and bulk payments through an app. Fintech / Business banking | Fastest growing | Islington EC1V 7DY | founded 2018 | raised £9.3M (~$11.8M) | Companies House 11232236 | incorporated 2018-03-05 | 28 staff in filed accounts (period to 2025-12-31) | SIC 62090 | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2026, #57 | backed by TCEE Fund IV, Oleka Capital | near Barbican (539 m) | https://www.wamo.io | sources: [funding](https://www.datocms-assets.com/60124/1774006698-sifted-100-uk-ireland-2026.pdf), [growth](https://www.datocms-assets.com/60124/1774006698-sifted-100-uk-ireland-2026.pdf), [address](https://www.wamo.io/about-us), [presence](https://www.datocms-assets.com/60124/1774006698-sifted-100-uk-ireland-2026.pdf) - **Wealthyhood** (`wealthyhood`): Investing app for younger investors with saving, investing and automation tools in one place. Fintech / Retail Investing | Up and coming | Hackney E2 8DD | founded 2019 | last round EUR6M, Mar 2026 | Companies House 12190343 | incorporated 2019-09-05 | 2 staff in filed accounts (period to 2025-09-30) | SIC 62012, 64999, 66190 | London HQ | backed by Bank of Cyprus, Genesis Ventures | near Hoxton (403 m) | https://wealthyhood.com | sources: [funding](https://fintech.global/2026/03/05/wealthyhood-raises-e6m-from-bank-of-cyprus-for-eu-growth/), [growth](https://fintech.global/2026/03/05/wealthyhood-raises-e6m-from-bank-of-cyprus-for-eu-growth/), [address](https://wealthyhood.com), [presence](https://wealthyhood.com) - **Weavr** (`weavr`): Embedded finance platform that lets B2B SaaS companies add accounts, digital wallets and payment cards inside their products. Fintech / Embedded Finance | Up and coming | Islington EC1V 2NX | founded 2019 | raised $55M | last round Series A, $40M, Feb 2022 | Companies House 13433581 | incorporated 2021-06-02 | SIC 64999 | London HQ | backed by Tiger Global, Anthemis, Latitude, Mubadala Capital, QED Investors, Seedcamp | near Old Street (146 m) | https://www.weavr.io | sources: [funding](https://www.uktech.news/fintech/fintech-weavr-funding-series-a-20220223), [growth](https://www.uktech.news/fintech/fintech-weavr-funding-series-a-20220223), [address](https://find-and-update.company-information.service.gov.uk/company/13433581), [presence](https://www.weavr.io/about) - **Wise** (`wise`): Low-cost international money transfers and multi-currency accounts for people and businesses. Fintech / Cross-border payments | Well known | Hackney EC2A 4JE | founded 2011 | last round Public: LSE direct listing Jul 2021; Nasdaq primary listing May 2026 | Companies House 07209813 | incorporated 2010-03-31 | SIC 64999 | licensed visa sponsor | London HQ | backed by Andreessen Horowitz, D1 Capital Partners, Institutional Venture Partners, Lone Pine Capital, Old Mutual Global Investors, Valar Ventures, Baillie Gifford, Fidelity Investments, IA Ventures, IJNR Ventures, Index Ventures, LocalGlobe, Mitsui & Co, Sapphire Ventures, Vulcan Capital | near Liverpool Street (496 m) | https://wise.com | sources: [funding](https://en.wikipedia.org/wiki/Wise_(company)), [growth](https://en.wikipedia.org/wiki/Wise_(company)), [address](https://find-and-update.company-information.service.gov.uk/company/07209813), [presence](https://en.wikipedia.org/wiki/Wise_(company)) - **Wrisk** (`wrisk`): Platform that lets car makers launch and run their own branded motor insurance products. Fintech / Embedded insurance | Up and coming | City of London EC2V 7BG | founded 2015 | last round Series B, £12M, Jul 2025 | Companies House 09721622 | incorporated 2015-08-06 | SIC 62012 | licensed visa sponsor | London HQ | backed by Mundi Ventures, Opera Tech Ventures, QBN Capital, Volution | near St. Paul's (215 m) | https://www.wrisk.co | sources: [funding](https://coverager.com/wrisk-raises-£12-million/), [growth](https://bebeez.eu/2025/07/08/wrisk-closes-series-b-to-drive-innovation-and-expansion/), [address](https://find-and-update.company-information.service.gov.uk/company/09721622), [presence](https://coverager.com/wrisk-raises-£12-million/) - **Xceptor** (`xceptor`): Xceptor sells a no-code data automation platform that banks and asset managers use to process and reconcile operational data. Fintech / Data automation | Up and coming | Islington EC2A 1AL | founded 2003 | Companies House 04825384 | incorporated 2003-07-08 | SIC 62012 | hiring 1 in London | licensed visa sponsor | London HQ | backed by Astorg, CBPE Capital | near Moorgate (243 m) | https://www.xceptor.com | sources: [funding](https://www.xceptor.com/newsroom/astorg-to-acquire-xceptor-from-cbpe-capital), [growth](https://app.welcometothejungle.com/companies/Xceptor), [address](https://www.xceptor.com/contact-us), [presence](https://www.xceptor.com/contact-us) - **Xelix** (`xelix`): AI platform for accounts payable teams that catches duplicate payments, fraud and supplier statement errors. Fintech / AP Automation | Fastest growing | Hackney E2 8JF | last round Series B, $160M, Jul 2025 | Companies House 09888099 | incorporated 2015-11-25 | SIC 62090 | licensed visa sponsor | London HQ | on Deloitte UK Technology Fast 50 2025, #47 | backed by Insight Partners, LocalGlobe, Passion Capital | near Hoxton (150 m) | https://www.xelix.com | sources: [funding](https://fintech.global/?p=208361), [growth](https://fintech.global/?p=208361), [address](https://www.xelix.com), [presence](https://www.xelix.com) - **XTX Markets** (`xtx-markets`): Algorithmic trading firm and electronic market maker trading over $250bn a day across 35 countries. Fintech / Algorithmic Trading | Well known | Camden N1C 4DN | founded 2015 | Companies House 09415174 | incorporated 2015-01-30 | SIC 64991 | hiring 4 in London | London HQ | near King's Cross & St Pancras International (638 m) | https://www.xtxmarkets.com | sources: [growth](https://dealroom.co/unicorns/united-kingdom), [address](https://www.xtxmarkets.com/contact/), [presence](https://en.wikipedia.org/wiki/XTX_Markets) - **Yapily** (`yapily`): Open banking API that lets companies pull bank data and start payments across thousands of European banks. Fintech / Open banking infrastructure | Up and coming | Hackney EC2A 4NA | founded 2017 | raised $69M | last round Series B, $51M, led by Sapphire Ventures, Jul 2021 | Companies House 10842280 | incorporated 2017-06-29 | 83 staff in filed accounts (period to 2025-12-31) | SIC 62090 | hiring 6 in London | licensed visa sponsor | work model hybrid (6 London job posts) | London HQ | GitHub yapily | on Sifted 100 UK & Ireland 2024, #81 | backed by Sapphire Ventures, HV Capital, Lakestar, Latitude | near Old Street (321 m) | https://www.yapily.com | sources: [funding](https://www.yapily.com/blog/series-b-announcement/), [growth](https://www.yapily.com/blog/series-b-announcement/), [address](https://www.yapily.com/company/about-us/), [presence](https://builtinlondon.uk/company/yapily) - **Yaspa** (`yaspa`): Instant bank payments and identity verification for gaming and other regulated merchants. Fintech / Payments | Fastest growing | Hackney EC2A 4RJ | founded 2017 | raised £14M (~$17.8M) | Companies House 09902175 | incorporated 2015-12-04 | 44 staff in filed accounts (period to 2025-09-30) | SIC 62012 | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2026, #4 | backed by Techstars | near Old Street (442 m) | https://www.yaspa.com | sources: [funding](https://www.datocms-assets.com/60124/1774006698-sifted-100-uk-ireland-2026.pdf), [growth](https://www.datocms-assets.com/60124/1774006698-sifted-100-uk-ireland-2026.pdf), [address](https://www.yaspa.com/contact), [presence](https://builtinlondon.uk/company/yaspa) - **Yonder** (`yonder`): Rewards credit card focused on travel, dining and going out, with points redeemable for flights and hotels. Fintech / Rewards Credit Card | Up and coming | Hackney E2 8JF | founded 2020 | last round Equity, GBP23.4M, Sep 2024 | Companies House 12739942 | incorporated 2020-07-14 | SIC 64921 | hiring 7 in London | licensed visa sponsor | work model hybrid (2 London job posts) | London HQ | on Sifted 100 UK & Ireland 2026, #27; Tech Nation Future Fifty 2025 | backed by Latitude, Repeat Ventures, RTP Global | near Hoxton (150 m) | https://www.yonder.com | sources: [funding](https://fintech.global/2024/09/20/yonder-bags-23-4m-to-boost-expansion-of-its-rewards-credit-platform/), [growth](https://fintech.global/2024/09/20/yonder-bags-23-4m-to-boost-expansion-of-its-rewards-credit-platform/), [address](https://find-and-update.company-information.service.gov.uk/company/12739942/filing-history), [presence](https://www.linkedin.com/company/yondercard) - **YouLend** (`youlend`): Embedded revenue-based financing platform that lets marketplaces, PSPs and ecommerce platforms offer capital to their merchants. Fintech / Embedded SME Financing | Fastest growing | Camden WC1V 6LJ | founded 2016 | Companies House 12576377 | incorporated 2020-04-28 | SIC 64999 | London HQ | near Holborn (182 m) | https://youlend.com | sources: [growth](https://find-and-update.company-information.service.gov.uk/company/12576377/filing-history), [address](https://youlend.com/company/contact), [presence](https://builtinlondon.uk/company/youlend) - **YuLife** (`yulife`): Group life insurance and employee benefits that reward staff for healthy habits through a gamified wellbeing app. Fintech / Insurtech | Fastest growing | Islington EC1Y 8RQ | founded 2016 | raised $206M | last round Series C, $120M, Jul 2022 | Companies House 10308260 | incorporated 2016-08-02 | SIC 58290, 86900 | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2024, #16; Deloitte UK Technology Fast 50 2023, #8 | backed by Dai-ichi Life, Anthemis, Creandum, Eurazeo, Latitude, LocalGlobe, MMC Ventures, Notion Capital, OurCrowd, Target Global | near Old Street (126 m) | https://www.yulife.com | sources: [funding](https://prnewswire.co.uk/news-releases/yulife-raises-120m-series-c-round-led-by-dai-ichi-life-to-accelerate-global-expansion-887559211.html), [growth](https://coverager.com/yulife-reports-latest-financial-results/), [address](https://www.yulife.com/contact-us/), [presence](https://www.vcbacked.co/company/yulife) - **Zego** (`zego`): Tech-led motor insurer for gig workers, fleets and everyday drivers, using telematics to price policies. Fintech / Insurtech | Well known | City of London EC3M 1HD | founded 2016 | last round $28M, Sompo Holdings with existing investors, Apr 2026 | Companies House 10128841 | incorporated 2016-04-18 | SIC 62012 | licensed visa sponsor | London HQ | backed by DST Global, Balderton Capital, General Catalyst, Latitude, Sompo Holdings, Target Global | near Monument (206 m) | https://www.zego.com | sources: [funding](https://tech.eu/2021/03/10/london-based-insurtech-zego-raises-150-million-joins-the-unicorn-ranks-with-1-1-billion-valuation/), [growth](https://www.zego.com/blog/sompo-partners-with-zego/), [address](https://www.zego.com/), [presence](https://www.cbinsights.com/investor/zego-3) - **Zepz** (`zepz`): Parent of WorldRemit and Sendwave, apps for sending money from 50+ countries to 130+ countries. Fintech / Remittances | Well known | Westminster W1W 5PF | founded 2010 | last round Series E, $292M, 2021 | Companies House 07110878 | incorporated 2009-12-22 | SIC 64999 | licensed visa sponsor | London HQ | backed by LeapFrog Investments, TCV, Accel | near Great Portland Street (244 m) | https://www.zepz.io | sources: [funding](https://en.wikipedia.org/wiki/WorldRemit), [growth](https://zepz.io/careers/), [address](https://find-and-update.company-information.service.gov.uk/company/07110878), [presence](https://www.worldremit.com/en/contact-us) - **Zilch** (`zilch`): Buy now pay later and payments app funded partly by advertising, letting shoppers split purchases. Fintech / BNPL / payments | Well known | Westminster SW1W 0SR | founded 2018 | last round Debt and equity round led by KKCG, $176.7M, Nov 2025 | Companies House 11488502 | incorporated 2018-07-27 | SIC 63110, 64921, 66190 | licensed visa sponsor | London HQ | on Deloitte UK Technology Fast 50 2025, #34; Sifted 100 UK & Ireland 2024, #3; Deloitte UK Technology Fast 50 2024, #6; LinkedIn Top Startups UK 2023, #14 | backed by Gauss Ventures, Goldman Sachs, KKCG, Ventura Capital, BNF Capital, DMG Ventures, eBay | near Victoria (160 m) | https://www.zilch.com | sources: [funding](https://fintech.global/2026/03/13/uk-companies-dominated-top-european-fintech-deals-in-q4-2025-as-funding-surged-by-63-yoy/), [growth](https://en.wikipedia.org/wiki/Zilch_(company)), [address](https://www.zilch.com/uk/), [presence](https://en.wikipedia.org/wiki/Zilch_(company)) - **ZILO** (`zilo`): Cloud-native transfer agency and investor servicing software for global asset and wealth managers. Fintech / Transfer Agency Software | Fastest growing | City of London EC4M 7RD | founded 2020 | raised €64.5M (~$69.7M) | last round Series A2, $27M, Sep 2025 | Companies House 12564726 | incorporated 2020-04-20 | SIC 62012 | licensed visa sponsor | London HQ | backed by Portage, State Street | near St. Paul's (446 m) | https://www.zilo.co.uk | sources: [funding](https://www.vestbee.com/insights/articles/top-european-funding-rounds-closed-in-september-2025), [growth](https://www.zilo.co.uk/insight-articles/zilo-tm-announces-27-million-funding-to-accelerate-growth), [address](https://www.zilo.co.uk), [presence](https://www.zilo.co.uk) - **Zopa** (`zopa`): Licensed UK digital bank offering loans, credit cards and savings. It started out as a peer-to-peer lending pioneer. Fintech / Digital bank | Well known | Tower Hamlets E14 5GX | founded 2005 | last round $87M, Dec 2024, valuation over $1B | Companies House 10627575 | incorporated 2017-02-20 | SIC 64191 | licensed visa sponsor | London HQ | on Deloitte UK Technology Fast 50 2024, #35 | backed by RIT Capital Partners, SoftBank Vision Fund | near Canary Wharf (310 m) | https://www.zopa.com | sources: [funding](https://en.wikipedia.org/wiki/Zopa), [growth](https://en.wikipedia.org/wiki/Zopa), [address](https://en.wikipedia.org/wiki/Zopa), [presence](https://en.wikipedia.org/wiki/Zopa) ### Quantum (8) - **Arqit** (`arqit`): Nasdaq-listed company selling quantum-safe encryption and post-quantum migration tools to governments, defence and telecoms. Quantum / Post-quantum encryption | Fastest growing | Westminster SW1H 0BF | founded 2017 | last round Public (Nasdaq: ARQQ) | Companies House 10544841 | incorporated 2017-01-03 | SIC 62090 | licensed visa sponsor | London HQ | near St. James's Park (99 m) | https://arqitgroup.com | sources: [growth](https://uk.finance.yahoo.com/news/arqit-quantum-inc-announces-financial-120000854.html), [address](https://arqitgroup.com), [presence](https://www.cbinsights.com/investor/arqit-1) - **Crypta Labs** (`crypta-labs`): Makes quantum random number generator hardware that supplies true randomness for encryption. Quantum / Quantum Random Numbers | Up and coming | Islington EC1V 4JL | founded 2014 | last round Bloc Ventures-led round, £2.7M incl. £1M Innovate UK debt, Jul 2019 | Companies House 09024495 | incorporated 2014-05-06 | 3 staff in filed accounts (period to 2025-05-31) | SIC 62012, 63990, 80200 | London HQ | backed by Bloc Ventures | near Farringdon (321 m) | https://cryptalabs.com | sources: [funding](https://www.cwconnected.com/resource/quantum-based-encryption-gets-significant-boost-wi-news-article-3257.html), [growth](https://www.design-reuse.com/news/14332-blueshift-memory-and-crypta-labs-to-develop-quantum-resilient-cybersecurity-memory-module/), [address](https://cryptalabs.com/contact), [presence](https://cryptalabs.com/contact) - **Moth** (`moth`): Builds quantum computing apps for music, games and media, including the consumer game Quantum Backrooms. Quantum / Quantum Creative Software | Up and coming | Westminster WC2R 1LA | founded 2022 | Companies House 14273557 | incorporated 2022-08-03 | 10 staff in filed accounts (period to 2025-12-31) | SIC 62090 | licensed visa sponsor | London HQ | GitHub moth-quantum | near Temple (237 m) | https://mothquantum.com | sources: [growth](https://www.prnewswire.co.uk/news-releases/quantum-computing-just-got-its-first-consumer-product-new-game-by-moth-represents-a-leap-forward-for-the-quantum-sector-302786008.html), [address](https://mothquantum.com/compliance), [presence](https://thequantuminsider.com/2025/01/25/moth-quantum-on-a-mission-to-attract-artists-creatives-to-quantum/) - **ORCA Computing** (`orca-computing`): Builds photonic quantum computers that run in normal data centres alongside AI and HPC systems. Quantum / Photonic quantum computing | Up and coming | Westminster W2 6LA | founded 2019 | Companies House 12285629 | incorporated 2019-10-28 | 29 staff in filed accounts (period to 2025-12-31) | SIC 72190 | licensed visa sponsor | London HQ | backed by Octopus Ventures, Oxford Science Enterprises, Quantonation, Verve Ventures | near Paddington (185 m) | https://orcacomputing.com | sources: [growth](https://markets.financialcontent.com/prnews/article/bizwire-2026-5-26-orca-computing-expands-commercial-quantum-presence-through-digital-realty-innovation-lab-in-london), [address](https://orcacomputing.com/contact/), [presence](https://craft.co/orca-computing) - **Phasecraft** (`phasecraft`): Builds quantum algorithms so today's quantum computers can tackle real problems in materials and chemistry. Quantum / Quantum algorithms | Fastest growing | Camden W1T 4PW | founded 2018 | last round Series B, $34M, Sep 2025 | Companies House 11211343 | incorporated 2018-02-19 | 36 staff in filed accounts (period to 2026-02-28) | SIC 62012, 72190 | licensed visa sponsor | London HQ | backed by Novo Holdings, Playground Global, Plural, AlbionVC, LocalGlobe, Parkwalk Advisors | near Goodge Street (174 m) | https://www.phasecraft.io | sources: [funding](https://www.newelectronics.co.uk/content/news/phasecraft-raises-34m-bringing-quantum-computing-closer-to-solving-real-world-problems), [growth](https://www.hpcwire.com/off-the-wire/phasecraft-tapped-by-arpa-e-to-develop-and-apply-quantum-algorithms-for-catalyst-discovery/), [address](https://www.phasecraft.io), [presence](https://www.uktech.news/deep-tech/phasecraft-us-quantum-20240523) - **Quantinuum** (`quantinuum`): Builds trapped-ion quantum computers and quantum software, formed from Cambridge Quantum and Honeywell Quantum Solutions. Quantum / Quantum Computing | Well known | Westminster SW1P 1BX | founded 2021 | last round IPO, $1.68B, Jun 2026 | Companies House 09109848 | incorporated 2014-07-01 | SIC 62090 | hiring 12 in London | licensed visa sponsor | work model mixed (12 London job posts) | London office, HQ elsewhere | backed by J.P. Morgan, Amgen, Cambridge Quantum Holdings, Honeywell, IBM, JSR, Mitsui & Co, Quanta Computer, Serendipity Capital | near Victoria (181 m) | https://www.quantinuum.com | sources: [funding](https://www.iposcoop.com/the-ipo-buzz-quantinuum-priced-upsized-ipo-at-60-5-above-range/), [growth](https://www.iposcoop.com/the-ipo-buzz-quantinuum-priced-upsized-ipo-at-60-5-above-range/), [address](https://www.quantinuum.com/about), [presence](https://en.wikipedia.org/wiki/Quantinuum) - **Quantum Motion** (`quantum-motion`): Builds quantum computers on standard silicon chip technology, designed to fit in normal data centres. Quantum / Silicon Quantum Computing | Fastest growing | Islington N7 9HJ | founded 2017 | last round Series C, $160M, May 2026 | Companies House 10867089 | incorporated 2017-07-14 | SIC 62090 | hiring 16 in London | licensed visa sponsor | work model hybrid (4 London job posts) | London HQ | on Tech Nation Future Fifty 2024 | backed by DCVC, Kembara, Bosch Ventures, British Business Bank, Firgun, INKEF, Oxford Science Enterprises, Parkwalk Advisors, Porsche SE | near Caledonian Road (242 m) | https://quantummotion.com | sources: [funding](https://quantummotion.com/quantum-motion-raises-160-million-series-c-to-deliver-quantum-computings-transistor-moment/), [growth](https://quantummotion.com/quantum-motion-raises-160-million-series-c-to-deliver-quantum-computings-transistor-moment/), [address](https://quantummotion.com/contact/), [presence](https://quantummotion.com/contact/) - **SEEQC** (`seeqc`): New York-headquartered maker of superconducting digital quantum computing chips, with a UK office in London. Quantum / Digital Quantum Chips | Fastest growing | Southwark SE1 9PG | last round $30M, Jan 2025 | Companies House 11411254 | incorporated 2018-06-12 | 9 staff in filed accounts (period to 2025-12-31) | SIC 26110 | licensed visa sponsor | London office, HQ elsewhere | backed by Booz Allen Ventures, NordicNinja, BlueYard Capital, EQT Ventures, FAM and Asset Management, M Ventures, SIP Capital | near Blackfriars (334 m) | https://seeqc.com | sources: [funding](https://seeqc.com/resources/seeqc-raises-30-million-to-advance-quantum-computing-platforms-with-the-world-s-first-full-stack-processor-for-quantum-computers), [growth](https://seeqc.com/resources/seeqc-raises-30-million-to-advance-quantum-computing-platforms-with-the-world-s-first-full-stack-processor-for-quantum-computers), [address](https://seeqc.com/contact), [presence](https://www.businesswire.com/news/home/20200514005083/en/Seeqc-UK-Awarded-£1.8M-Grants-Advance-Quantum) ### Crypto (33) - **Aave Labs** (`aave-labs`): Builds Aave, one of the largest decentralised lending protocols, plus related crypto products. Crypto / DeFi lending | Well known | Kensington and Chelsea W11 3JY | founded 2017 | Companies House 13729000 | incorporated 2021-11-08 | 18 staff in filed accounts (period to 2025-12-31) | SIC 62012, 62020, 63990, 78300 | licensed visa sponsor | London HQ | GitHub aave | builds on Ethereum | backed by Blockchain Capital, Blockchain.com Ventures, Standard Crypto | near Notting Hill Gate (89 m) | https://aave.com | sources: [growth](https://www.crowdfundinsider.com/2026/05/282272-subsidiaries-of-aave-labs-push-labs-push-virtual-assets-gain-uk-fca-approval/), [address](https://builtinlondon.uk/job/head-risk/9227549), [presence](https://www.linkedin.com/company/aavelabs) - **Agio Ratings** (`agio-ratings`): Risk ratings and monitoring of crypto exchanges, custodians and lenders so institutions can manage counterparty exposure. Crypto / Risk ratings | Up and coming | Westminster WC2H 7DQ | founded 2022 | raised $11M+ | last round $6M round led by AlbionVC, Oct 2025 | Companies House 14040883 | incorporated 2022-04-12 | 3 staff in filed accounts (period to 2025-12-31) | SIC 63990 | licensed visa sponsor | London HQ | backed by AlbionVC, MS&AD, Portage, Superscrypt | near Piccadilly Circus (215 m) | https://www.agioratings.io | sources: [funding](https://albion.vc/spotlight/news/agio-ratings-secures-6-million-to-expand-risk-management-tools-for-digital-assets/), [growth](https://albion.vc/spotlight/news/agio-ratings-secures-6-million-to-expand-risk-management-tools-for-digital-assets/), [address](https://find-and-update.company-information.service.gov.uk/company/14040883), [presence](https://www.agioratings.io/careers) - **Archax** (`archax`): FCA-regulated London exchange, broker and custodian for tokenised real-world assets such as money market funds and bonds. Crypto (also Fintech) / Tokenisation exchange | Up and coming | Camden WC2H 9JQ | founded 2018 | raised $36.5M | last round Series A, $28.5M, Nov 2022 | Companies House 11302455 | incorporated 2018-04-10 | SIC 64999 | licensed visa sponsor | London HQ | backed by abrdn, Alameda Research, Amnis Ventures, Bridgetower Capital | near Covent Garden (208 m) | https://www.archax.com | sources: [funding](https://en.wikipedia.org/wiki/Archax), [growth](https://www.archax.com/about), [address](https://find-and-update.company-information.service.gov.uk/company/11302455), [presence](https://www.cbinsights.com/company/archax) - **Aztec** (`aztec`): Privacy-first Ethereum layer 2 using zero-knowledge proofs, plus the Noir language for private smart contracts. Crypto / Privacy Layer 2 | Up and coming | City of London EC4M 7AN | founded 2017 | raised $117M | last round Series B, $100M, Dec 2022 | Companies House 11093783 | incorporated 2017-12-04 | 28 staff in filed accounts (period to 2025-12-31) | SIC 62012 | licensed visa sponsor | London HQ | GitHub AztecProtocol | builds on Ethereum | backed by Andreessen Horowitz, A_Capital, Alumni Ventures, Fenbushi Capital, HashKey Capital, King River Capital, Paradigm, SV Angel, Variant | near St. Paul's (344 m) | https://aztec.network | sources: [funding](https://forklog.com/en/aztec-raises-100-million-series-b-led-by-andreessen-horowitz-and-other-investors/), [growth](https://forklog.com/en/aztec-raises-100-million-series-b-led-by-andreessen-horowitz-and-other-investors/), [address](https://find-and-update.company-information.service.gov.uk/company/11093783), [presence](https://jobs.ashbyhq.com/aztec-labs/763bd807-c5fc-468c-be52-f165985c9c71) - **B2C2** (`b2c2`): Institutional crypto liquidity provider and OTC market maker, majority-owned by Japan's SBI Holdings. Crypto / Institutional Liquidity | Well known | City of London EC2R 7HF | founded 2015 | last round Acquired (90% stake) by SBI Financial Services, Dec 2020 | Companies House 07995888 | incorporated 2012-03-19 | SIC 64999 | hiring 1 in London | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2024, #31 | near Bank (171 m) | https://www.b2c2.com | sources: [funding](https://www.crowdfundinsider.com/2026/07/293772-sbi-holdings-backed-crypto-liquidity-provider-b2c2-explores-potential-sale-amid-industry-consolidation/), [growth](https://www.crowdfundinsider.com/2026/07/293772-sbi-holdings-backed-crypto-liquidity-provider-b2c2-explores-potential-sale-amid-industry-consolidation/), [address](https://www.b2c2.com/contact-us), [presence](https://craft.co/b2c2) - **BCB Group** (`bcb-group`): Payments and banking rails for crypto firms, with FCA-authorised and EU-licensed entities. Crypto (also Fintech) / Crypto payments | Fastest growing | Camden WC1B 3DA | founded 2017 | raised $65.5M | last round Series A, $60M, Jan 2022 | Companies House 11313622 | incorporated 2018-04-17 | 2 staff in filed accounts (period to 2024-12-31) | SIC 64999 | London HQ | backed by Blockchain.com Ventures, Foundation Capital, North Island Ventures, BACKED VC, Circle, Cowa, Digital Currency Group, L1 Digital, Launchub Ventures, Menai Financial Group, Nexo, NKB Finance, Pack Capital, Pantera Capital, PayU, Profluent Ventures, Rockaway Blockchain Fund, tokentus investment, Wintermute | near Holborn (316 m) | https://www.bcbgroup.com | sources: [funding](https://www.bcbgroup.com/insights/bcb-group-raises-60m-in-series-a-funding-round/), [growth](https://www.bcbgroup.com/), [address](https://www.bcbgroup.com), [presence](https://builtinlondon.uk/company/bcb-group) - **Block Scholes** (`block-scholes`): FCA-registered crypto derivatives data, volatility analytics, research and on-chain options pricing oracles for institutions. Crypto / Derivatives analytics | Up and coming | Camden WC1N 3AX | founded 2019 | Companies House 11907206 | incorporated 2019-03-27 | 12 staff in filed accounts (period to 2026-03-31) | SIC 62012, 62020 | licensed visa sponsor | London HQ | backed by CoinSwitch, Dair Capital, FunFair Ventures, Investcorp, Record, Saison Capital | near Russell Square (313 m) | https://www.blockscholes.com | sources: [growth](https://www.blockscholes.com/), [address](https://www.blockscholes.com/contact), [presence](https://www.blockscholes.com/contact) - **CF Benchmarks** (`cf-benchmarks`): FCA-regulated crypto index provider whose bitcoin reference rate prices major US spot bitcoin ETFs. Crypto (also Fintech) / Crypto Benchmarks | Well known | City of London EC2Y 5EB | founded 2018 | Companies House 11654816 | incorporated 2018-11-01 | 14 staff in filed accounts (period to 2025-12-31) | SIC 96090 | London HQ | near St. Paul's (282 m) | https://www.cfbenchmarks.com | sources: [growth](https://www.cfbenchmarks.com/data/indices/BRRNY), [address](https://www.cfbenchmarks.com/blog/legal/), [presence](https://www.cbinsights.com/company/cf-benchmarks) - **Clearmatics** (`clearmatics`): Researches and builds blockchain protocols and peer-to-peer platforms for decentralised financial markets. Crypto / Decentralised market protocols | Up and coming | City of London EC2R 6DA | founded 2015 | Companies House 09427186 | incorporated 2015-02-06 | 10 staff in filed accounts (period to 2025-02-28) | SIC 62012 | licensed visa sponsor | London HQ | GitHub clearmatics | backed by Route 66 Ventures, TNF Capital, XTX Ventures | near Bank (236 m) | https://www.clearmatics.com | sources: [growth](https://uk.linkedin.com/company/clearmatics), [address](https://uk.linkedin.com/company/clearmatics), [presence](https://www.financemagnates.com/institutional-forex/technology/xtx-invests-in-london-based-blockchain-rd-company/) - **ClearToken** (`cleartoken`): Builds clearing, payment and settlement infrastructure for institutional digital asset markets, regulated in the UK. Crypto (also Fintech) / Digital Asset Clearing | Up and coming | City of London EC4M 9DQ | founded 2022 | raised $10M | last round Seed, $10M, Mar 2024 | Companies House 14488617 | incorporated 2022-11-16 | 23 staff in filed accounts (period to 2025-12-31) | SIC 62012, 82990 | London HQ | backed by Flow Traders, GSR, Laser Digital, LMAX Digital, Zodia Custody | near Mansion House (159 m) | https://www.cleartoken.io | sources: [funding](https://www.coindesk.com/business/2024/03/13/cleartoken-raises-10m-from-institutional-investors-including-nomuras-laser-digital), [growth](https://www.cleartoken.io), [address](https://www.cleartoken.io), [presence](https://www.fintechfutures.com/blockchain-crypto-digital-assets/cleartoken-receives-fca-approval-for-digital-asset-settlement-system) - **Copper** (`copper`): Institutional crypto custody, collateral and off-exchange settlement (ClearLoop) provider. Crypto / Crypto custody | Fastest growing | Westminster W1F 0DE | founded 2018 | Companies House 11148681 | incorporated 2018-01-15 | SIC 62012, 82990 | licensed visa sponsor | London HQ | backed by Dawn Capital, Target Global, Illuminate Financial, LocalGlobe, MMC Ventures | near Piccadilly Circus (399 m) | https://copper.co | sources: [growth](https://uk.finance.yahoo.com/news/crypto-custody-firm-copper-early-155525683.html), [address](https://job-boards.eu.greenhouse.io/copperco/jobs/4979757101), [presence](https://www.linkedin.com/company/copperco) - **Elliptic** (`elliptic`): Blockchain analytics used by exchanges, banks and governments for crypto compliance and risk screening. Crypto / Blockchain analytics | Fastest growing | City of London EC4M 7JN | founded 2013 | last round Series D, $120M, May 2026 | Companies House 08458210 | incorporated 2013-03-22 | SIC 62090 | licensed visa sponsor | London HQ | on Tech Nation Future Fifty 2024 | backed by One Peak, AlbionVC, British Business Bank, Deutsche Bank, Evolution Equity Partners, J.P. Morgan, Nasdaq Ventures | near St. Paul's (338 m) | https://www.elliptic.co | sources: [funding](https://www.cityam.com/elliptic-secures-120-million-investment-from-nasdaq-ventures-deutsche-bank-one-peak-and-the-british-business-bank/), [growth](https://www.cityam.com/elliptic-secures-120-million-investment-from-nasdaq-ventures-deutsche-bank-one-peak-and-the-british-business-bank/), [address](https://www.elliptic.co/privacy-notice/), [presence](https://jobs.ashbyhq.com/elliptic) - **Encode Club** (`encode-club`): Web3 and AI developer community running programmes, bootcamps and hackathons from a Shoreditch innovation hub. Crypto / Developer education | Up and coming | Hackney N1 6DA | Companies House 13817711 | incorporated 2021-12-24 | 12 staff in filed accounts (period to 2025-12-31) | SIC 85590 | London HQ | near Old Street (347 m) | https://www.encodeclub.com | sources: [growth](https://www.encodeclub.com/london-hub), [address](https://www.encodeclub.com/london-hub), [presence](https://app.welcometothejungle.com/companies/Encode-Club) - **Eunice** (`eunice`): AI agents that produce auditable due diligence reports on digital assets and private markets for institutions. Crypto (also AI) / Digital Asset Due Diligence | Up and coming | Camden WC1R 4PS | founded 2022 | raised $8M | last round Seed and pre-seed, $8M, Mar 2026 | Companies House 13839159 | incorporated 2022-01-10 | 9 staff in filed accounts (period to 2025-01-31) | SIC 62012, 63110 | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2026, #76 | backed by Moonfire Ventures, Speedinvest, Openspace Ventures | near Holborn (316 m) | https://eunice.ai | sources: [funding](https://tech.eu/2026/03/25/with-8m-eunice-brings-institutional-grade-ai-to-due-diligence/), [growth](https://tech.eu/2026/03/25/with-8m-eunice-brings-institutional-grade-ai-to-due-diligence/), [address](https://eunice.ai/privacy-policy), [presence](https://eunice.ai/careers) - **Fiat Republic** (`fiat-republic`): Banking and payments API that gives crypto platforms regulated fiat accounts, virtual IBANs and payment rails. Crypto (also Fintech) / Crypto Banking API | Up and coming | City of London EC4N 6NP | founded 2021 | last round Seed extension, EUR6.4M, Dec 2023 | Companies House 13466461 | incorporated 2021-06-20 | SIC 62090, 64999 | London HQ | backed by Arca, Credo Ventures, Fabric Ventures, Inovo, Kraken Ventures, Pretiosum Ventures, Seedcamp, Speedinvest | near Mansion House (117 m) | https://fiatrepublic.com | sources: [funding](https://startuprise.co.uk/fiat-republic-secures-e6-4m-seed-funding/), [growth](https://startuprise.co.uk/fiat-republic-secures-e6-4m-seed-funding/), [address](https://fiatrepublic.com/contact), [presence](https://fiatrepublic.com) - **GFO-X** (`gfo-x`): FCA-regulated UK trading venue for centrally cleared digital asset futures and options for institutional investors. Crypto (also Fintech) / Crypto Derivatives Venue | Up and coming | City of London EC3R 8DE | founded 2020 | raised $50M | last round Series B, $30M, Dec 2023 | Companies House 13018987 | incorporated 2020-11-15 | 39 staff in filed accounts (period to 2025-12-31) | SIC 96090 | licensed visa sponsor | London HQ | backed by M&G Investments, byWiT, HashKey Capital, Hivemind Capital Partners, Mount Parker Ventures | near Monument (128 m) | https://www.gfo-x.com | sources: [funding](https://www.cbinsights.com/company/gfo-x/financials), [growth](https://www.gfo-x.com/news/gfo-x-raises-30m-series-b-funding-led-by-m-and-g-investments), [address](https://www.gfo-x.com), [presence](https://www.hedgeweek.com/gfo-x-launches-uk-regulated-venue-for-digital-asset-derivatives/) - **Haruko** (`haruko`): Portfolio and risk management software for institutional crypto funds and trading firms. Crypto / Portfolio & risk software | Up and coming | City of London EC3A 2AA | founded 2021 | last round Series A, $6M, Jul 2024 | Companies House 13383328 | incorporated 2021-05-07 | 18 staff in filed accounts (period to 2025-12-31) | SIC 62012 | London HQ | backed by MMC Ventures, White Star Capital | near Aldgate (323 m) | https://haruko.io | sources: [funding](https://www.haruko.io/blog/haruko-raises-6m-to-eliminate-inefficiencies-in-digital-asset-management/), [growth](https://www.haruko.io/blog/haruko-raises-6m-to-eliminate-inefficiencies-in-digital-asset-management/), [address](https://haruko.io/), [presence](https://www.cbinsights.com/company/haruko) - **Komainu** (`komainu`): Regulated digital asset custodian offering custody, staking, tokenisation and collateral services to institutions. Crypto / Institutional custody | Fastest growing | City of London EC4R 3AB | founded 2018 | raised $100M | last round Series B, $75M, Jan 2025 | Companies House 11841450 | incorporated 2019-02-22 | 30 staff in filed accounts (period to 2024-12-31) | SIC 62020 | licensed visa sponsor | London office, HQ elsewhere | backed by Blockstream Capital Partners, Laser Digital | near Cannon Street (201 m) | https://komainu.com | sources: [funding](https://komainu.com/insights/komainu-completes-series-b-fundraising-with-strategic-investment-from-blockstream/), [growth](https://komainu.com/insights/komainu-completes-series-b-fundraising-with-strategic-investment-from-blockstream/), [address](https://komainu.com), [presence](https://komainu.com/entities/) - **LMAX Digital** (`lmax-digital`): Regulated institutional spot crypto exchange run by London's LMAX Group, a long-standing FX exchange operator. Crypto / Institutional exchange | Well known | Kensington and Chelsea W11 4AN | Companies House 13122924 | incorporated 2021-01-08 | SIC 64999 | London HQ | backed by J.C. Flowers | near Latimer Road (326 m) | https://www.lmax.com | sources: [growth](https://cryptobriefing.com/lmax-explores-sale-ipo-5-billion-valuation/), [address](https://www.lmax.com/contact), [presence](https://www.lmax.com/about) - **Luno** (`luno`): Crypto investment platform owned by Digital Currency Group, serving 16 million users across Africa and Asia-Pacific. Crypto / Crypto Exchange | Well known | Hackney EC2A 4NE | founded 2013 | Companies House 10388856 | incorporated 2016-09-22 | SIC 63990, 82990 | licensed visa sponsor | London HQ | backed by Balderton Capital, AlphaCode, Digital Currency Group, Rand Merchant Investment Holdings | near Old Street (321 m) | https://www.luno.com | sources: [growth](https://briefly.co.za/people/248260-luno-cuts-20-staff-south-african-crypto-firm-restructures-globally/), [address](https://find-and-update.company-information.service.gov.uk/company/10388856), [presence](https://find-and-update.company-information.service.gov.uk/company/10388856) - **Nethermind** (`nethermind`): Builds the Nethermind Ethereum execution client plus blockchain security audits, research and engineering services. Crypto / Ethereum Infrastructure | Up and coming | Tower Hamlets E14 5EU | founded 2017 | Companies House 10908862 | incorporated 2017-08-10 | SIC 46510, 47410, 62012, 62020 | licensed visa sponsor | London HQ | GitHub NethermindEth | builds on Ethereum, Starknet | near Canary Wharf (281 m) | https://www.nethermind.io | sources: [growth](https://www.nethermind.io/), [address](https://www.nethermind.io/legal), [presence](https://builtinlondon.uk/company/nethermind) - **Noah** (`noah`): Stablecoin payment infrastructure for converting and moving money between fiat and stablecoins across 70+ countries. Crypto (also Fintech) / Stablecoin Payments | Fastest growing | Westminster W1B 4HB | founded 2020 | last round Seed, $22M, Jun 2025 | Companies House 13100652 | incorporated 2020-12-29 | 14 staff in filed accounts (period to 2025-03-31) | SIC 62012 | London HQ | backed by Felix Capital, FJ Labs, LocalGlobe | near Oxford Circus (231 m) | https://noah.com | sources: [growth](https://noah.com/blog/22m-seed-round), [address](https://noah.com/eu/privacy-notice), [presence](https://noah.com/eu/privacy-notice) - **Outlier Ventures** (`outlier-ventures`): London venture firm and accelerator investing in early-stage crypto and AI startups. Crypto / Web3 venture accelerator | Up and coming | City of London EC4A 1LL | founded 2014 | Companies House OC404177 | incorporated 2016-02-05 | London HQ | GitHub OutlierVentures | near Chancery Lane (190 m) | https://outlierventures.io | sources: [growth](https://outlierventures.io/), [address](https://uk.linkedin.com/company/outlierventures), [presence](https://www.cbinsights.com/investor/outlier-ventures) - **Ownera** (`ownera`): Builds FinP2P, an interoperability network letting banks trade and settle tokenised assets across blockchains and ledgers. Crypto (also Fintech) / Tokenisation Infrastructure | Up and coming | City of London EC2V 7AY | founded 2018 | last round Series A, $20M, Sep 2022 | Companies House 11969394 | incorporated 2019-04-29 | SIC 62012 | licensed visa sponsor | London HQ | backed by Accomplice Blockchain, Archax, Draper Goren Holm, J.P. Morgan, LRC Group, Polymorphic Capital, The Ropart Group, tokentus investment | near Bank (252 m) | https://www.ownera.io | sources: [funding](https://siliconcanals.com/ownera-bags-20m/), [growth](https://siliconcanals.com/ownera-bags-20m/), [address](https://www.ownera.io), [presence](https://builtinlondon.uk/company/ownera) - **Parity Technologies** (`parity-technologies`): Builds the core software and developer tooling behind the Polkadot blockchain network. Crypto / Blockchain infrastructure | Up and coming | Islington EC1R 0LT | founded 2015 | Companies House 09760015 | incorporated 2015-09-03 | SIC 62012 | licensed visa sponsor | London office, HQ elsewhere | GitHub paritytech | near Farringdon (443 m) | https://www.parity.io | sources: [growth](https://www.parity.io/), [address](https://www.parity.io/privacy), [presence](https://www.parity.io/careers) - **Plasma** (`plasma`): Runs a blockchain built for stablecoin payments, including zero-fee USDT transfers. Crypto / Stablecoin blockchain | Fastest growing | Westminster W1W 5BB | raised $24M | last round Seed and Series A, $24M, Feb 2025 | Companies House 16405367 | incorporated 2025-04-24 | SIC 62011, 62012 | licensed visa sponsor | London office, HQ elsewhere | GitHub PlasmaLaboratories | builds on Plasma | backed by Framework Ventures, 6th Man Ventures, Bitfinex, Founders Fund | near Great Portland Street (273 m) | https://www.plasma.org | sources: [funding](https://fortune.com/crypto/2025/02/13/exclusive-stablecoin-company-plasma-raises-24-million-from-framework-to-launch-its-own-blockchain), [growth](https://decrypt.co/326052), [address](https://find-and-update.company-information.service.gov.uk/company/16405367), [presence](https://decrypt.co/326052) - **Quant Network** (`quant-network`): London company behind Overledger and Quant Flow, software that lets banks program money and connect to blockchains. Crypto (also Fintech) / Programmable money | Up and coming | Hackney N1 7GU | founded 2015 | Companies House 09798383 | incorporated 2015-09-28 | SIC 58290, 62020, 63990 | licensed visa sponsor | London HQ | near Old Street (645 m) | https://quant.network | sources: [growth](https://quant.network/news/quant-powers-the-clearing-houses-on-chain-money-initiative-in-the-us/), [address](https://find-and-update.company-information.service.gov.uk/company/09798383), [presence](https://find-and-update.company-information.service.gov.uk/company/09798383) - **Ramp Network** (`ramp-network`): Provides fiat to crypto on-ramp and off-ramp infrastructure that apps and wallets embed to let users buy, sell and swap crypto. Crypto (also Fintech) / Fiat-crypto ramps | Up and coming | Hackney EC2A 3AY | founded 2017 | raised $134M | last round Series B, $70M, Nov 2022 | Companies House 11850124 | incorporated 2019-02-27 | SIC 62090 | licensed visa sponsor | London HQ | backed by Balderton Capital | near Shoreditch High Street (399 m) | https://rampnetwork.com | sources: [funding](https://rampnetwork.com/about), [growth](https://rampnetwork.com/), [address](https://rampnetwork.com/), [presence](https://app.welcometothejungle.com/companies/Ramp-Network) - **Trilitech** (`trilitech`): London research and development hub building core protocol and apps on the Tezos blockchain. Crypto / Tezos R&D | Up and coming | Westminster W1D 3HB | founded 2021 | Companies House 13532868 | incorporated 2021-07-27 | SIC 62012 | licensed visa sponsor | London HQ | builds on Tezos | near Tottenham Court Road (176 m) | https://www.trili.tech | sources: [growth](https://www.trili.tech/), [address](https://www.trili.tech/careers), [presence](https://xtznews.beehiiv.com/p/london-hub-for-tezos-blockchain-research-and-development-launches) - **Wintermute** (`wintermute`): Algorithmic trading firm that provides liquidity across crypto markets and is expanding into traditional markets. Crypto / Market Making | Well known | City of London EC2R 7HF | founded 2017 | Companies House 10882520 | incorporated 2017-07-25 | SIC 63990 | licensed visa sponsor | London HQ | backed by Lightspeed Venture Partners, Avon Ventures, Blockchain.com Ventures, DeFi Alliance, Hack VC, Kenetic Capital, Pantera Capital, Rockaway Blockchain Fund, Sino Global Capital | near Bank (171 m) | https://www.wintermute.com | sources: [growth](https://news.bitcoin.com/crypto-news/wintermute-bets-1-billion-on-ai-and-high-frequency-trading-expansion/), [address](https://find-and-update.company-information.service.gov.uk/company/10882520), [presence](https://www.wintermute.com/company) - **Wirex** (`wirex`): Crypto and stablecoin payments app and card issuer, a principal member of Visa and Mastercard. Crypto (also Fintech) / Stablecoin payments | Fastest growing | City of London EC2M 4YJ | founded 2014 | Companies House 09334596 | incorporated 2014-12-01 | 39 staff in filed accounts (period to 2025-06-30) | SIC 64999 | licensed visa sponsor | London HQ | backed by SBI | near Aldgate (338 m) | https://wirexapp.com | sources: [growth](https://find-and-update.company-information.service.gov.uk/company/09334596/filing-history), [address](https://www.linkedin.com/company/wirex-limited), [presence](https://builtinlondon.uk/company/wirex) - **Zodia Custody** (`zodia-custody`): Bank-backed crypto custodian offering custody, staking, trading and settlement services to institutions. Crypto / Institutional custody | Up and coming | City of London EC3M 1AE | founded 2020 | Companies House 12418687 | incorporated 2020-01-22 | SIC 64999 | London HQ | backed by Emirates NBD, National Australia Bank, Northern Trust, SBI Holdings, Standard Chartered | near Monument (52 m) | https://zodia-custody.com | sources: [growth](https://zodia-custody.com/about-us/), [address](https://zodia-custody.com/privacy-policy/), [presence](https://zodia-custody.com/about-us/) - **Zodia Markets** (`zodia-markets`): Institutional digital asset brokerage for cross-border crypto and stablecoin trading with same-day settlement. Crypto / Institutional Crypto Brokerage | Up and coming | City of London EC2V 5DD | founded 2021 | last round Series A, $18.25M, Jul 2025 | Companies House 13360649 | incorporated 2021-04-27 | SIC 64999 | London HQ | backed by Pharsalus Capital, Circle Ventures, Human Capital, OSL Group, SC Ventures, The Operating Group, Token Bay Capital, XVC Tech | near Moorgate (196 m) | https://zodiamarkets.com | sources: [funding](https://sc.com/en/press-release/zodia-markets-raises-over-18-million-in-series-a-fundraise), [growth](https://sc.com/en/press-release/zodia-markets-raises-over-18-million-in-series-a-fundraise), [address](https://find-and-update.company-information.service.gov.uk/company/13360649), [presence](https://zodiamarkets.com) ### Defence (18) - **Adarga** (`adarga`): AI software that helps defence and security teams analyse large volumes of information and make faster decisions. Defence (also AI) / Defence Intelligence AI | Up and coming | City of London EC4Y 0HA | founded 2016 | Companies House 09742902 | incorporated 2015-08-21 | 44 staff in filed accounts (period to 2025-12-30) | SIC 74909 | London HQ | on Deloitte UK Technology Fast 50 2023, #14 | backed by BOKA Group | near Blackfriars (341 m) | https://www.adarga.ai | sources: [growth](https://www.adarga.ai/about), [address](https://www.adarga.ai/about), [presence](https://www.adarga.ai/about) - **Agon** (`agon`): Builds synthetic battlefields where autonomous defence systems and military AI are trained and tested. Defence (also AI) / Defence AI Simulation | Fastest growing | City of London EC4A 3TW | founded 2025 | raised $30M | last round Seed, $23M, Jul 2026 | Companies House 16605303 | incorporated 2025-07-24 | SIC 62012 | licensed visa sponsor | London HQ | backed by 201 Ventures, D3, Lakestar, Lux Capital, Northzone, XYZ Venture Capital | near Chancery Lane (373 m) | https://www.agon.com | sources: [funding](https://tech.eu/2026/07/29/british-defence-startup-agon-creating-virtual-battlefields-launches-raising-30m/), [growth](https://thenextweb.com/news/agon-30m-seed-european-defence-ai-training-infrastructure), [address](https://find-and-update.company-information.service.gov.uk/company/16605303), [presence](https://find-and-update.company-information.service.gov.uk/company/16605303) - **Anduril UK** (`anduril-uk`): UK arm of Anduril, supplying autonomous systems and Lattice software to British defence customers. Defence / Autonomous Defence Systems | Well known | City of London EC4A 3BZ | Companies House 12316056 | incorporated 2019-11-14 | SIC 84220 | licensed visa sponsor | London office, HQ elsewhere | near Chancery Lane (363 m) | https://www.anduril.com/uk | sources: [growth](https://www.uktech.news/ai/anduril-to-open-british-site-amid-uk-defence-spending-boom-20250319), [address](https://find-and-update.company-information.service.gov.uk/company/12316056), [presence](https://boards.greenhouse.io/andurilindustries/jobs/5255866007?gh_jid=5255866007) - **Arondite** (`arondite`): Defence software (Cobalt) that lets operators control mixed fleets of drones, robots and sensors from one platform. Defence / Autonomy Orchestration | Up and coming | Westminster W1W 5PF | founded 2023 | raised $12M | last round Seed, $10M led by Index Ventures, May 2025 | Companies House 15349092 | incorporated 2023-12-13 | 20 staff in filed accounts (period to 2025-12-31) | SIC 62012, 62090 | hiring 13 in London | licensed visa sponsor | work model hybrid (13 London job posts) | London HQ | backed by Concept Ventures, Creator Fund, Index Ventures | near Great Portland Street (244 m) | https://www.arondite.com | sources: [funding](https://www.arondite.com/newsrooms/arondite-raises-12m-connect-defence-systems-ai), [growth](https://www.arondite.com/newsrooms/arondite-awarded-multi-million-pound-contract-to-partner-with-british-armys-global-response-force-on-next-generation-mission-orchestration), [address](https://find-and-update.company-information.service.gov.uk/company/15349092), [presence](https://apply.workable.com/j/B90A63A44A) - **Augur** (`augur`): Software that uses a site's existing cameras and sensors to flag abnormal behaviour in near real time at transport hubs, energy sites and large venues. Defence (also AI) / Security AI | Up and coming | Islington EC2A 4DJ | founded 2024 | raised $15M | last round Seed, $15M, Mar 2026 | Companies House 15877532 | incorporated 2024-08-05 | 9 staff in filed accounts (period to 2025-12-31) | SIC 62090 | licensed visa sponsor | London HQ | backed by Plural | near Old Street (443 m) | https://augur.co.uk | sources: [funding](https://dealroom.co/news/126540-augur-raises-15m-to-turn-security-cameras-into-ai-threat-detectors/), [growth](https://securitybrief.co.uk/story/augur-raises-usd-15m-to-expand-ai-risk-monitoring), [address](https://augur.co.uk/privacy-policy), [presence](https://securitybrief.co.uk/story/augur-raises-usd-15m-to-expand-ai-risk-monitoring) - **Delian Alliance Industries** (`delian-alliance-industries`): Builds low-cost autonomous defence systems including targeting systems, surveillance towers, drones and software. Defence / Autonomous systems | Up and coming | City of London EC2Y 5EB | founded 2021 | raised $14M | last round Series A, $14M, Jul 2025 | Companies House 14992837 | incorporated 2023-07-10 | 1 staff in filed accounts (period to 2025-12-31) | SIC 64209 | licensed visa sponsor | London office, HQ elsewhere | backed by Air Street Capital, Marathon Venture Capital | near St. Paul's (282 m) | https://delian.ai | sources: [funding](https://fortune.com/2025/07/30/dimitrios-kottas-delian-alliance-industries-series-a-investors-apple-tesla-defense-tech-vertical-integration), [growth](https://fortune.com/2025/07/30/dimitrios-kottas-delian-alliance-industries-series-a-investors-apple-tesla-defense-tech-vertical-integration), [address](https://find-and-update.company-information.service.gov.uk/company/14992837), [presence](https://delian.ai/careers) - **Hadean** (`hadean`): AI and simulation software for military training, mission planning, wargaming and command and control. Defence / Defence Simulation | Up and coming | Hackney EC2A 2AP | founded 2015 | last round Bridge round (undisclosed), Booz Allen Ventures, British Business Bank, Twin Track, EF, Mar 2026 | Companies House 09808169 | incorporated 2015-10-03 | SIC 62012 | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2024, #58 | backed by Booz Allen Ventures, British Business Bank, Entrepreneur First, Twin Track Ventures | near Liverpool Street (430 m) | https://hadean.com | sources: [funding](https://hadean.com/news/hadean-secures-acceleration-funding-to-fuel-ambitions-as-the-uks-next-defence-dual-use-tech-unicorn/), [growth](https://hadean.com/news/hadean-secures-acceleration-funding-to-fuel-ambitions-as-the-uks-next-defence-dual-use-tech-unicorn/), [address](https://hadean.com/privacy-policy/), [presence](https://builtinlondon.uk/company/hadean) - **Helsing (London)** (`helsing-london`): Munich-headquartered defence AI company building strike drones, underwater systems and battlefield software, with a London office. Defence (also AI) / Defence AI | Well known | Westminster W1T 3BL | founded 2021 | last round $1.8B, Jul 2026 | Companies House 13447361 | incorporated 2021-06-09 | SIC 62012 | hiring 39 in London | licensed visa sponsor | London office, HQ elsewhere | backed by General Catalyst, Prima Materia, Accel, ICONIQ, J.P. Morgan, Lightspeed Venture Partners, Saab | near Goodge Street (384 m) | https://helsing.ai | sources: [funding](https://en.wikipedia.org/wiki/Helsing_(company)), [growth](https://en.wikipedia.org/wiki/Helsing_(company)), [address](https://www.adsgroup.org.uk/members/helsing-ltd-1), [presence](https://helsing.ai/newsroom/ai-defence-specialist-helsing-announces-gbp100-m-investment-in-the-uk-at-launch-of-new-hq) - **Labrys** (`labrys`): Builds Axiom, a mobile platform for verified identity, encrypted communications, task tracking and payments for defence, humanitarian and security teams. Defence / Command and control | Fastest growing | Hackney EC2A 4NE | founded 2020 | raised $25.5M | last round Series A, $20M, Jun 2025 | Companies House 12728244 | incorporated 2020-07-08 | SIC 62012 | licensed visa sponsor | London HQ | backed by Plural, AlbionVC, Expeditions Fund, Marque Ventures, MD One Ventures, Project A Ventures, Superangel | near Old Street (321 m) | https://labrys.tech | sources: [funding](https://tech.eu/2025/06/03/labrys-raises-20m-for-humanitarian-and-security-operations-software/), [growth](https://tech.eu/2025/06/03/labrys-raises-20m-for-humanitarian-and-security-operations-software/), [address](https://find-and-update.company-information.service.gov.uk/company/12728244), [presence](https://startuprise.co.uk/labrys-technologies-secures-5-5m-in-seed-funding/) - **Occam Industries** (`occam-industries`): Autonomy software that installs on existing military drones without redesigning them, adding autonomous detection, tracking and targeting to mass-produced FPV drones. Defence / Drone autonomy | Up and coming | Islington EC1V 2NX | founded 2025 | raised €7M (~$7.6M) | last round €3.8M, Sep 2026 | Companies House 16515234 | incorporated 2025-06-12 | SIC 58290 | hiring 2 in London | London HQ | Antler | backed by North Ventures, Presto Tech Horizons, Antler, Freedom Fund, Grenadyr, Sparkmind, TYR | near Old Street (146 m) | https://occam.industries | sources: [funding](https://thedefender.media/en/2026/09/occam-industries-investment-3-8m/), [growth](https://thedefender.media/en/2026/09/occam-industries-investment-3-8m/), [address](https://find-and-update.company-information.service.gov.uk/company/16515234), [presence](https://www.vestbee.com/insights/articles/occam-closes-3-m) - **Refute** (`refute`): Refute is an AI platform that detects coordinated online disinformation campaigns early and recommends how to respond. Defence / Counter-disinformation | Up and coming | Westminster W1H 1DP | founded 2024 | last round Seed, £5M, Feb 2026 | Companies House 15624117 | incorporated 2024-04-07 | 5 staff in filed accounts (period to 2025-12-31) | SIC 62012 | licensed visa sponsor | London HQ | backed by Amadeus Capital Partners, Episode 1 Ventures, National Security Strategic Investment Fund, Osney Capital, Playfair Capital | near Marylebone (179 m) | https://refute.com | sources: [funding](https://tech.eu/2026/02/03/refute-raises-ps5m-seed-round-to-address-disinformation-threats/), [growth](https://tech.eu/2026/02/03/refute-raises-ps5m-seed-round-to-address-disinformation-threats/), [address](https://find-and-update.company-information.service.gov.uk/company/15624117), [presence](https://tech.eu/2026/02/03/refute-raises-ps5m-seed-round-to-address-disinformation-threats/) - **Seeing Systems** (`seeing-systems`): Builds low-cost modular autonomous strike drones and swarm software for UK and NATO militaries. Defence / Autonomous Drones | Up and coming | Islington EC1M 4JN | founded 2025 | Companies House 17017240 | incorporated 2026-02-06 | SIC 26400, 28990 | London HQ | Y Combinator W26 | backed by Y Combinator | near Barbican (297 m) | https://www.seeing-systems.com | sources: [growth](https://www.ycombinator.com/companies/seeing-systems), [address](https://find-and-update.company-information.service.gov.uk/company/17017240), [presence](https://www.ycombinator.com/companies/seeing-systems) - **Skyral** (`skyral`): Simulation and digital-twin software for defence, government and infrastructure decision-making. Defence / Modelling and Simulation | Fastest growing | Islington EC2A 1AL | founded 2023 | raised $20M | last round Series A, $20M led by NOIA Capital, Jun 2025 | Companies House 14948583 | incorporated 2023-06-20 | SIC 84220 | hiring 5 in London | licensed visa sponsor | work model hybrid (5 London job posts) | London HQ | backed by NOIA Capital | near Moorgate (243 m) | https://www.skyral.com | sources: [funding](https://www.skyral.com/2025/06/16/skyral-secures-usd-20-million-series-a-funding-to-accelerate-modelling-simulation-technology/), [growth](https://www.skyral.com/2025/06/16/skyral-secures-usd-20-million-series-a-funding-to-accelerate-modelling-simulation-technology/), [address](https://www.skyral.com/contact/), [presence](https://www.skyral.com) - **Spaceflux** (`spaceflux`): Tracks satellites and debris from low Earth orbit to GEO using its own telescope network and AI platform. Defence (also Deeptech) / Space Domain Awareness | Up and coming | Islington N1 2HY | founded 2022 | raised £9M (~$11.4M) | last round Seed extension, £3.5M, Apr 2026 | Companies House 14023744 | incorporated 2022-04-04 | 15 staff in filed accounts (period to 2026-04-30) | SIC 62012, 62020, 63110, 74909 | licensed visa sponsor | London HQ | backed by Blackfinch Ventures, UK Innovation & Science Seed Fund, Foresight Group, SPARX Group | near Highbury & Islington (753 m) | https://www.spaceflux.io | sources: [funding](https://www.spaceflux.io/spaceflux-raises-9-million-to-expand-space-intelligence-globally/), [growth](https://www.spaceflux.io/spaceflux-raises-9-million-to-expand-space-intelligence-globally/), [address](https://www.spaceflux.io/spaceflux-raises-9-million-to-expand-space-intelligence-globally/), [presence](https://www.spaceflux.io) - **SteelRock Technologies** (`steelrock-technologies`): Makes NightFighter radio frequency jamming and electronic warfare systems that detect and bring down hostile drones. Defence / Counter-drone | Up and coming | Westminster W1H 7QD | founded 2016 | Companies House 10141298 | 7 staff in filed accounts (period to 2025-03-31) | London HQ | near Marble Arch (264 m) | https://www.sruav.co.uk | sources: [growth](https://www.unmannedairspace.info/?p=38366), [address](https://find-and-update.company-information.service.gov.uk/company/10141298), [presence](https://www.unmannedairspace.info/?p=38366) - **UFORCE** (`uforce`): Builds combat-proven unmanned air, land and sea systems, including Magura sea drones, for allied militaries. Defence / Unmanned Systems | Well known | City of London EC4A 3TW | founded 2025 | raised $50M | last round Seed, $50M, Mar 2026 | Companies House 16172901 | incorporated 2025-01-09 | SIC 64202 | London HQ | backed by Lakestar, Shield Capital, Ballistic Ventures | near Chancery Lane (373 m) | https://uforce.com | sources: [funding](https://businesscloud.co.uk/news/uk-creates-14-unicorns-in-2026-as-ai-fuels-boom/), [growth](https://uforce.com/news/uforce-comes-out-of-stealth-bringing-ukraines-battle-proven-defense-technologies-to-western-allies), [address](https://find-and-update.company-information.service.gov.uk/company/16172901), [presence](https://jobs.ashbyhq.com/uforce/090224ac-e5ac-44bb-900f-929073ff0402) - **Valarian** (`valarian`): Builds a sovereign control layer so governments and defence groups can run AI and critical workloads securely. Defence (also AI) / Sovereign AI Infrastructure | Fastest growing | Camden WC1V 7AA | founded 2020 | raised $70M | last round Series A, $50M, Jul 2026 | Companies House 12295525 | incorporated 2019-11-04 | 8 staff in filed accounts (period to 2025-12-31) | SIC 62090 | hiring 10 in London | licensed visa sponsor | work model hybrid (10 London job posts) | London HQ | Founders Factory | backed by New Enterprise Associates, Lightbank, LitVC, Sequel, XTX Markets | near Covent Garden (311 m) | https://www.valarian.com | sources: [funding](https://pulse2.com/valarian-raises-50-million-series-a-to-build-sovereign-infrastructure-for-ai-driven-systems/), [growth](https://pulse2.com/valarian-raises-50-million-series-a-to-build-sovereign-infrastructure-for-ai-driven-systems/), [address](https://www.valarian.com/privacy-policy), [presence](https://siliconangle.com/2026/07/14/sovereign-ai-infrastructure-startup-valarian-raises-50m-help-nations-secure-military-defense-systems/) - **Vizgard** (`vizgard`): AI vision software that turns defence and security cameras into autonomous threat detectors, including drones. Defence (also AI) / Edge Vision AI | Up and coming | Camden EC1N 8LE | founded 2020 | last round Seed, GBP1.5M led by Sure Valley Ventures, Jan 2025 | Companies House 13033810 | incorporated 2020-11-20 | 11 staff in filed accounts (period to 2025-11-30) | SIC 62090 | London HQ | backed by Sure Valley Ventures, Focal, Midwich Ignite | near Farringdon (286 m) | https://vizgard.com | sources: [funding](https://vizgard.com/vizgard-uk-ai-startup-closes-oversubscribed-seed-round/), [growth](https://vizgard.com/vizgard-uk-ai-startup-closes-oversubscribed-seed-round/), [address](https://vizgard.com/privacy), [presence](https://vizgard.com/contact-us) ### Deeptech (28) - **Apoha** (`apoha`): Builds AI models and lab measurement tech that read how molecules behave, for pharma, food and materials. Deeptech (also AI) / Molecular AI | Up and coming | Brent NW6 6RJ | founded 2021 | raised $36M | last round Unlettered round, Jun 2026 | Companies House 13344316 | incorporated 2021-04-19 | SIC 72110 | licensed visa sponsor | London HQ | backed by Singular, Draper Associates, Nucleus, Redalpine, Seedcamp, Wilbe | near Brondesbury Park (148 m) | https://apoha.com | sources: [funding](https://fortune.com/2026/06/03/apoha-36-million-series-a-funding-round-exit-stealth-wave-form-ai-liquid-intelligence/), [growth](https://fortune.com/2026/06/03/apoha-36-million-series-a-funding-round-exit-stealth-wave-form-ai-liquid-intelligence/), [address](https://find-and-update.company-information.service.gov.uk/company/13344316), [presence](https://fortune.com/2026/06/03/apoha-36-million-series-a-funding-round-exit-stealth-wave-form-ai-liquid-intelligence/) - **Automata** (`automata`): Robotic lab automation platform that runs life-science experiments end to end for pharma and biotech labs. Deeptech / Lab Automation | Fastest growing | Islington N1 9PD | founded 2015 | last round Series C, $45M led by Dimension, Jan 2026 | Companies House 09384597 | incorporated 2015-01-12 | 121 staff in filed accounts (period to 2025-03-31) | SIC 71121 | licensed visa sponsor | London HQ | on Tech Nation Future Fifty 2026 | backed by Dimension, Danaher Ventures, Entrepreneur First, Octopus Ventures, Tru Arrow Partners | near Angel (131 m) | https://www.automata.tech | sources: [funding](https://www.automata.tech/company-news/automata-raises-45m-series-c-funding), [growth](https://www.automata.tech/company-news/automata-raises-45m-series-c-funding), [address](https://www.automata.tech), [presence](https://www.automata.tech) - **BeyondMath** (`beyondmath`): Foundational AI model of physics that runs engineering simulations in minutes for aerospace, automotive and data centre design. Deeptech (also AI) / Generative Physics AI | Up and coming | Camden WC2H 9JQ | founded 2022 | raised $18.5M | last round Seed extension, $10M, Feb 2026 | Companies House 14110252 | incorporated 2022-05-16 | 14 staff in filed accounts (period to 2025-05-31) | SIC 62012 | hiring 5 in London | licensed visa sponsor | work model hybrid (5 London job posts) | London HQ | backed by Cambridge Innovation Capital, InMotion Ventures, Insight Partners, UP.Partners | near Covent Garden (208 m) | https://beyondmath.com | sources: [funding](https://beyondmath.com/news/seed-round-announcement), [growth](https://beyondmath.com/news/seed-round-announcement), [address](https://beyondmath.com/privacy), [presence](https://beyondmath.com/privacy) - **BioOrbit** (`bioorbit`): Builds autonomous units that crystallise biologic cancer drugs in microgravity to enable injectable versions. Deeptech (also Health) / In-Space Manufacturing | Up and coming | Islington N7 9DP | founded 2023 | last round Seed, £9.8M, May 2026 | Companies House 15035829 | incorporated 2023-07-28 | 7 staff in filed accounts (period to 2025-07-31) | SIC 72110 | London HQ | on Tech Nation Future Fifty 2025 | backed by Breega, LocalGlobe, 7percent Ventures, Auxxo, Seedcamp, Type One Ventures | near Caledonian Road (129 m) | https://www.bioorbit.com | sources: [funding](https://payloadspace.com/bioorbit-raises-9-8m-seed-to-manufacture-cancer-drugs-in-orbit/), [growth](https://payloadspace.com/bioorbit-raises-9-8m-seed-to-manufacture-cancer-drugs-in-orbit/), [address](https://www.bioorbit.com/), [presence](https://www.bioorbit.com) - **Blue Skies Space** (`blue-skies-space`): Runs its own small science satellites and sells the data to universities by subscription. Deeptech / Space Science Data | Up and coming | Islington EC2A 2BB | founded 2014 | Companies House 09348394 | incorporated 2014-12-10 | 13 staff in filed accounts (period to 2025-12-31) | SIC 74909 | licensed visa sponsor | London HQ | backed by SFC Capital, SPARX Group | near Liverpool Street (452 m) | https://bssl.space | sources: [growth](https://bssl.space/blue-skies-space-delivers-first-data-to-the-mauve-science-programme/), [address](https://bssl.space/about), [presence](https://bssl.space/about/) - **Circuit Mind** (`circuit-mind`): AI electronics design platform that turns hardware architectures into verified schematics and bills of materials. Deeptech (also AI) / Electronics design AI | Up and coming | Southwark SE1 0HS | founded 2018 | Companies House 11389569 | incorporated 2018-05-30 | 14 staff in filed accounts (period to 2025-04-30) | SIC 62012 | licensed visa sponsor | London HQ | backed by 7percent Ventures, Blackhorn Ventures, Creative Destruction Lab, Creative Ventures, Differential Ventures | near Borough (482 m) | https://www.circuitmind.io | sources: [growth](https://www.circuitmind.io/), [address](https://www.circuitmind.io/), [presence](https://www.circuitmind.io/) - **CloudNC** (`cloudnc`): AI software (CAM Assist) that automates CNC machining programming, toolpath generation and quoting for machine shops. Deeptech (also AI) / Manufacturing AI | Fastest growing | Tower Hamlets E1 6DB | founded 2015 | raised $128M | last round $20M, Sep 2026 | Companies House 09821257 | incorporated 2015-10-13 | SIC 25990, 62012 | licensed visa sponsor | London HQ | on Tech Nation Future Fifty 2024 | backed by Nimble Ventures, Calculus Venture Capital, Entrepreneur First, LM Ventures | near Shoreditch High Street (315 m) | https://www.cloudnc.com | sources: [funding](https://vestbee.com/insights/articles/cloud-nc-raises-20-m), [growth](https://tech.eu/2026/09/09/cloudnc-lands-20m-to-expand-its-ai-software-for-precision-manufacturing/), [address](https://www.cloudnc.com/contact), [presence](https://www.cloudnc.com/contact) - **CORE POWER** (`core-power`): Develops nuclear propulsion and floating nuclear power technology for commercial shipping and coastal energy. Deeptech / Maritime nuclear | Up and coming | Hounslow W4 5YF | raised $85M | Companies House 12262063 | incorporated 2019-10-15 | SIC 71129 | licensed visa sponsor | London HQ | near Gunnersbury (461 m) | https://www.corepower.energy | sources: [funding](https://www.vcbacked.co/company/core-power-uk-ltd), [growth](https://maritime-executive.com/article/us-plan-advances-for-50-ship-nuclear-powered-merchant-fleet), [address](https://www.corepower.energy/contact), [presence](https://www.corepower.energy/contact) - **Crypto Quantique** (`crypto-quantique`): Makes chip-level security (PUF roots of trust) and the QuarkLink platform to secure connected IoT devices. Deeptech / IoT Chip Security | Up and coming | Southwark SE1 0LH | founded 2016 | last round Series A, undisclosed, Jul 2022 | Companies House 10267904 | incorporated 2016-07-07 | 22 staff in filed accounts (period to 2025-07-31) | SIC 26200, 62090, 72190 | licensed visa sponsor | London HQ | GitHub cryptoquantique | backed by BGF, Parkwalk Advisors | near Southwark (348 m) | https://www.cryptoquantique.com | sources: [funding](https://www.parkwalk.vc/2022/07/crypto-quantique-raises-series-a-round), [growth](https://www.design-reuse.com/news/202530411-crypto-quantique-and-attopsemi-unite-puf-and-i-fuse-otp-technology-to-deliver-zero-overhead-device-enrollment-on-finfet-technology/), [address](https://www.cryptoquantique.com/contact-us/), [presence](https://builtinlondon.uk/company/crypto-quantique) - **FabricNano** (`fabricnano`): FabricNano engineers and immobilises enzymes on scalable supports for cell-free biomanufacturing and biocatalysis. Deeptech / Biomanufacturing | Up and coming | Camden NW1 3HP | founded 2018 | raised $16M | last round Series A, $12.5M, Jun 2021 | Companies House 11673047 | 15 staff in filed accounts (period to 2024-12-31) | licensed visa sponsor | London HQ | backed by Atomico, Backed, Entrepreneur First, Hoxton Ventures | near Warren Street (220 m) | https://fabricnano.com | sources: [funding](https://tech.eu/2021/06/30/uk-based-biomanufacturing-startup-fabricnano-raises-12-5-million/), [growth](https://tech.eu/2021/06/30/uk-based-biomanufacturing-startup-fabricnano-raises-12-5-million/), [address](https://fabricnano.com), [presence](https://fabricnano.com) - **Flexciton** (`flexciton`): Planning and scheduling software that helps semiconductor fabs decide which wafers run on which tools and when. Deeptech / Semiconductor software | Up and coming | Hackney EC2A 3BX | founded 2016 | raised £21M (~$26.7M) | last round Series A, £15M | Companies House 10184111 | incorporated 2016-05-17 | 29 staff in filed accounts (period to 2026-05-31) | SIC 62012, 62020 | licensed visa sponsor | London HQ | near Shoreditch High Street (489 m) | https://flexciton.com | sources: [funding](https://flexciton.com/), [growth](https://flexciton.com/), [address](https://flexciton.com/contact-us), [presence](https://flexciton.com/contact-us) - **Foundational** (`foundational`): Foundational runs automated satellite laser ranging ground stations, retroreflectors and a data platform to track satellites and debris precisely. Deeptech / Space tracking | Up and coming | Westminster W1W 5PF | founded 2025 | last round Pre-seed, £8.2M, Sep 2026 | Companies House 16515763 | incorporated 2025-06-13 | SIC 72190 | hiring 27 in London | work model on-site (27 London job posts) | London HQ | backed by Adjacent, Backed, Final Frontier, Inflection, Type One Ventures | near Great Portland Street (244 m) | https://foundational.space | sources: [funding](https://payloadspace.com/foundational-raises-8-2m-for-satellite-laser-ranging/), [growth](https://payloadspace.com/foundational-raises-8-2m-for-satellite-laser-ranging/), [address](https://foundational.space), [presence](https://payloadspace.com/foundational-raises-8-2m-for-satellite-laser-ranging/) - **Isembard** (`isembard`): Network of software-run factories making precision parts for aerospace, defence and energy companies. Deeptech / Advanced Manufacturing | Fastest growing | Southwark SE1 5SZ | founded 2024 | raised $59M | last round Series A, $50M, Mar 2026 | Companies House 15989684 | incorporated 2024-10-01 | 5 staff in filed accounts (period to 2025-10-31) | SIC 25990, 62012, 71121 | licensed visa sponsor | London HQ | backed by Union Square Ventures, CIV, IQ Capital, Notion Capital, Tamarack Global | near Bermondsey (1219 m) | https://isembard.com | sources: [funding](https://isembard.com/uk/newsroom/series-a/), [growth](https://isembard.com/uk/newsroom/series-a/), [address](https://isembard.com), [presence](https://isembard.com/uk/) - **Lodestar Space** (`lodestar-space`): Building autonomous AI to guide satellites that protect high-value assets in orbit. Deeptech / Space Autonomy | Up and coming | Southwark SE17 3AZ | founded 2022 | Companies House 14473705 | incorporated 2022-11-09 | 13 staff in filed accounts (period to 2025-11-30) | SIC 51220 | hiring 2 in London | licensed visa sponsor | London office, HQ elsewhere | near Elephant & Castle (401 m) | https://www.lodestar.space | sources: [growth](https://www.lodestar.space/press-releases), [address](https://www.lodestar.space), [presence](https://www.lodestar.space) - **MatNex** (`matnex`): Uses AI and quantum-mechanics simulation to design new materials, starting with magnets free of rare earths. Deeptech / Materials discovery | Up and coming | Islington EC1Y 1AA | founded 2020 | raised £2M (~$2.5M) | last round Seed, £2M, Jul 2023 | Companies House 13057449 | incorporated 2020-12-02 | 27 staff in filed accounts (period to 2025-12-31) | SIC 72190 | licensed visa sponsor | London HQ | backed by Ada Ventures, Carbon13, ET Capital, G-force, Genuine Capital Ventures, High-Tech Gründerfonds, Katapult, MD One Ventures | near Old Street (337 m) | https://matnex.ai | sources: [funding](https://www.htgf.de/en/htgf-seed-materials-nexus/), [growth](https://matnex.ai/news), [address](https://www.htgf.de/en/portfolio/htgffamily/materials-nexus/), [presence](https://siliconcanals.com/materials-nexus-raises-2-3m/) - **Multus** (`multus`): Multus uses AI and lab automation to design cell-specific culture media for advanced therapies, biologics and cultivated meat. Deeptech / Cell culture media | Up and coming | Hammersmith and Fulham W12 0BZ | last round £7.9M, Jan 2023 | Companies House 12524885 | incorporated 2020-03-18 | 19 staff in filed accounts (period to 2026-03-31) | SIC 10890, 72110, 72190 | licensed visa sponsor | London HQ | near White City (424 m) | https://www.multus.bio | sources: [funding](https://www.imperial.ac.uk/news/242599/cultivated-meat-startup-multus-raises-79m/), [growth](https://www.imperial.ac.uk/news/242599/cultivated-meat-startup-multus-raises-79m/), [address](https://www.multus.bio/), [presence](https://www.imperial.ac.uk/news/242599/cultivated-meat-startup-multus-raises-79m/) - **Plumerai** (`plumerai`): Licensable tiny AI software that runs people, vehicle and face detection directly on smart cameras. Deeptech (also AI) / Edge AI | Up and coming | Southwark SE1 4PG | founded 2017 | raised $17M+ | last round Series A, $8.7M, Sep 2025 | Companies House 11102890 | incorporated 2017-12-08 | 4 staff in filed accounts (period to 2025-12-31) | SIC 62012 | hiring 2 in London | licensed visa sponsor | work model hybrid (2 London job posts) | London HQ | backed by OTB Ventures, Partech | near Borough (112 m) | https://plumerai.com | sources: [funding](https://www.vestbee.com/insights/articles/plumerai-raises-8-7-m), [growth](https://www.vestbee.com/insights/articles/plumerai-raises-8-7-m), [address](https://find-and-update.company-information.service.gov.uk/company/11102890), [presence](https://www.startuphub.ai/ai-news/funding-round/2025/plumerai-secures-8-7m-series-a-for-tiny-ai-camera-expansion) - **Q-Bot** (`q-bot`): Installs underfloor insulation by spraying foam beneath suspended timber and concrete floors, using robots or by hand through small openings in the floor. Deeptech / Construction robotics | Up and coming | Wandsworth SW8 4AS | founded 2012 | last round £3.5M led by EMV Capital, Sep 2023 | Companies House 07972299 | incorporated 2012-03-01 | 21 staff in filed accounts (period to 2025-12-31) | SIC 28990, 43999, 72190 | licensed visa sponsor | London HQ | backed by EMV Capital, Adjuvo, Wealth Club | near Battersea Power Station (277 m) | https://www.q-bot.co | sources: [funding](https://www.powerprogress.com/global/news/emv-capital-leads-35-million-investment-into-construction-tech-robotics-developer/8031678.article), [growth](https://www.q-bot.co), [address](https://www.q-bot.co/contact), [presence](https://www.q-bot.co/contact) - **Reelables** (`reelables`): Reelables makes printable, battery-powered smart labels that track the location of shipments, cargo and inventory. Deeptech / IoT tracking | Up and coming | City of London EC2V 6DN | last round Series A, $10.4M, Nov 2025 | Companies House 11611431 | incorporated 2018-10-09 | SIC 18121 | licensed visa sponsor | London HQ | Y Combinator W19 | backed by 500 Global, Amigos Ventures, Moneta, Raptor Group, Silicon Labs, Smooth Brain, Y Combinator | near Mansion House (231 m) | https://reelables.com | sources: [funding](https://www.globenewswire.com/news-release/2025/11/17/3189146/0/en/Reelables-Secures-10-4M-in-Series-A-Funding-to-Advance-Active-Smart-Label-Technology.html), [growth](https://www.globenewswire.com/news-release/2025/11/17/3189146/0/en/Reelables-Secures-10-4M-in-Series-A-Funding-to-Advance-Active-Smart-Label-Technology.html), [address](https://find-and-update.company-information.service.gov.uk/company/11611431), [presence](https://www.globenewswire.com/news-release/2025/11/17/3189146/0/en/Reelables-Secures-10-4M-in-Series-A-Funding-to-Advance-Active-Smart-Label-Technology.html) - **SatVu** (`satvu`): Builds thermal-imaging satellites that show heat and activity at sites like factories, data centres and energy plants. Deeptech / Thermal Earth Observation | Fastest growing | Lambeth SE1 7PB | founded 2016 | raised £60M (~$76.2M) | last round GBP30M ($40M) round backed by NATO Innovation Fund, Feb 2026 | Companies House 10163800 | incorporated 2016-05-05 | SIC 63110 | hiring 1 in London | licensed visa sponsor | London HQ | on Tech Nation Future Fifty 2024 | backed by Molten Ventures, Adara Ventures, British Business Bank, Lockheed Martin, NATO Innovation Fund, NOA, Presto Tech Horizons, Ridgeline Ventures, Seraphim Space, Space Frontiers Fund II (SPARX), Stellar Ventures | near Waterloo (467 m) | https://www.satellitevu.com | sources: [funding](https://www.satellitevu.com/news/nato-innovation-fund-backs-thermal-intelligence-with-multi-million-satvu-investment), [growth](https://www.satellitevu.com/news/nato-innovation-fund-backs-thermal-intelligence-with-multi-million-satvu-investment), [address](https://www.satellitevu.com/contact), [presence](https://www.satellitevu.com/about) - **Sen** (`sen`): Sen operates cameras in orbit and streams live ultra high definition video of Earth from space. Deeptech / Space video | Up and coming | Islington EC1V 0DX | raised £7M (~$8.9M) | last round Growth round, £2M, Dec 2022 | Companies House 06270642 | incorporated 2007-06-06 | 16 staff in filed accounts (period to 2025-12-31) | SIC 59112 | London HQ | backed by Mercia Ventures, Axiom Space, SpaceFund | near Barbican (409 m) | https://www.sen.com | sources: [funding](https://tech.eu/2022/12/08/sen-creators-of-the-first-ever-uhd-planetary-imaging-stream-of-earth-raises-2-million), [growth](https://informitv.com/2025/10/12/live-video-feeds-from-space/), [address](https://www.sen.com/privacy-policy), [presence](https://tech.eu/2022/12/08/sen-creators-of-the-first-ever-uhd-planetary-imaging-stream-of-earth-raises-2-million) - **Sensat** (`sensat`): Sensat builds a geospatial digital twin platform that lets infrastructure teams plan and manage large construction and utility projects. Deeptech / Infrastructure digital twins | Up and coming | Hackney EC2A 3AY | founded 2015 | raised $65M | last round £3M led by Mercia Ventures, Jun 2026 | Companies House 09546301 | incorporated 2015-04-16 | SIC 63110, 74202 | London HQ | backed by Mercia Ventures | near Shoreditch High Street (399 m) | https://sensat.co | sources: [funding](https://dealroom.co/news/133032-sensat-raises-3m-to-build-agentic-geospatial-ai-for-infrastructure/), [growth](https://dealroom.co/news/133032-sensat-raises-3m-to-build-agentic-geospatial-ai-for-infrastructure/), [address](https://sensat.co/contact), [presence](https://sensat.co) - **Shadow Robot Company** (`shadow-robot-company`): Designs and manufactures dexterous robot hands and teleoperation systems used in robotics research. Deeptech / Robotic hands | Up and coming | Camden NW5 1LP | founded 1997 | Companies House 03308007 | incorporated 1997-01-27 | 20 staff in filed accounts (period to 2025-01-31) | SIC 28990 | licensed visa sponsor | London HQ | near Gospel Oak (182 m) | https://shadowrobot.com | sources: [growth](https://shadowrobot.com/shadow-robot-unveils-the-worlds-most-robust-dexterous-robot-hand-developed-in-partnership-with-google-deepmind/), [address](https://shadowrobot.com/contact/), [presence](https://shadowrobot.com/contact/) - **StandardX** (`standardx`): Building an isotope refinery on a compact particle accelerator for medical, industrial and fusion isotopes. Deeptech / Isotope Production | Up and coming | Lambeth SE1 7RJ | founded 2025 | raised $13.3M | last round Seed, $13.3M, Sep 2026 | Companies House 16667660 | incorporated 2025-08-22 | 6 staff in filed accounts (period to 2026-03-31) | SIC 72190 | licensed visa sponsor | London HQ | backed by East X Ventures, firstminute capital, Geometry, UK Innovation & Science Seed Fund, Vsquared Ventures | near Lambeth North (202 m) | https://standardx.tech | sources: [funding](https://www.vcbacked.co/company/standardx), [growth](https://www.vcbacked.co/company/standardx), [address](https://careers.standardx.tech/jobs/8470434-senior-electrical-engineer), [presence](https://standardx.tech/about-us) - **Twig** (`twig`): Twig combines AI models with an automated wet lab to develop biofermented alternatives to chemicals and consumer ingredients. Deeptech / Synthetic biology | Up and coming | Camden NW1 0NH | founded 2022 | raised £3M (~$3.8M) | last round £3M, Sep 2023 | Companies House 14353896 | 11 staff in filed accounts (period to 2026-02-28) | licensed visa sponsor | London HQ | backed by Project A Ventures, Gaingels, Seedcamp, Zero Carbon Capital | near Mornington Crescent (409 m) | https://twig.bio | sources: [funding](https://www.foodmanufacture.co.uk/Article/2023/10/02/ai-start-up-twig-secures-3m-in-funding/), [growth](https://www.foodmanufacture.co.uk/Article/2023/10/02/ai-start-up-twig-secures-3m-in-funding/), [address](https://find-and-update.company-information.service.gov.uk/company/14353896), [presence](https://lbic.com/news/lbic-s-apex-facility-surpasses-50-occupancy-with-new-tenants-bind-research-and-twig-bio/) - **V-Nova** (`v-nova`): V-Nova develops and licenses video compression technology, including the MPEG-5 LCEVC standard, for streaming services, broadcasters and device makers. Deeptech / Video compression | Up and coming | Westminster W2 6LG | founded 2011 | last round Series C, €33M, Jul 2021 | Companies House 11125008 | incorporated 2017-12-27 | SIC 62011 | London HQ | GitHub v-novaltd | backed by Eutelsat, Neva SGR, Sky | near Paddington (153 m) | https://v-nova.com | sources: [funding](https://en.wikipedia.org/wiki/V-NOVA), [growth](https://en.wikipedia.org/wiki/V-NOVA), [address](https://v-nova.com/privacy-policy/), [presence](https://en.wikipedia.org/wiki/V-NOVA) - **Vaire Computing** (`vaire-computing`): Designs reversible-computing chips that recover and recycle most of the energy used in computation to cut power use for AI workloads. Deeptech / Reversible computing chips | Up and coming | City of London EC2V 6DN | founded 2021 | raised $4.5M | last round Seed, $4M, Jul 2024 | Companies House 13617614 | incorporated 2021-09-13 | 6 staff in filed accounts (period to 2025-09-30) | SIC 62012, 62090 | London office, HQ elsewhere | Conception X CX24 | backed by 7percent Ventures, Clim8, Seedcamp | near Mansion House (231 m) | https://vaire.co | sources: [funding](https://seedcamp.com/views/vaire-computing-secures-4-5m-to-create-near-zero-energy-silicon-chips-using-reversible-computing/), [growth](https://seedcamp.com/views/vaire-computing-secures-4-5m-to-create-near-zero-energy-silicon-chips-using-reversible-computing/), [address](https://vaire.co/contact), [presence](https://vaire.co/contact) - **XYZ Reality** (`xyz-reality`): Makes an engineering-grade AR headset and platform that lets builders check work against design models on site. Deeptech / Construction AR | Up and coming | Islington EC1V 7LQ | founded 2017 | last round Series A, £20M | Companies House 10660835 | incorporated 2017-03-09 | SIC 62012 | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2024, #18; Tech Nation Future Fifty 2024 | backed by Octopus Ventures | near Angel (241 m) | https://www.xyzreality.com | sources: [funding](https://www.xyzreality.com/resource-type/newsroom), [growth](https://www.xyzreality.com/resource-type/newsroom), [address](https://www.xyzreality.com/contact), [presence](https://builtinlondon.uk/company/xyz-reality) ### Health (87) - **01Health** (`01health`): Clinical platform for specialist dental care, running the 32Co orthodontics and Aerox sleep medicine brands. Health / Dental AI | Up and coming | Hackney E2 8HD | founded 2021 | Companies House 13279603 | incorporated 2021-03-19 | 26 staff in filed accounts (period to 2025-03-31) | SIC 86900 | hiring 4 in London | licensed visa sponsor | work model hybrid (4 London job posts) | London HQ | backed by Gresham House Ventures, Balderton Capital, Eka Ventures, Wavemaker360 | near Hoxton (113 m) | https://www.01health.ai | sources: [growth](https://thenextweb.com/news/01health-raises-11-2m-to-turn-its-dental-ai-platform-into-infrastructure-for-specialist-care), [address](https://www.01health.ai/terms), [presence](https://www.01health.ai/terms) - **Accurx** (`accurx`): Messaging and communication software used by NHS GP practices and hospital trusts to talk to patients. Health / NHS Communication Software | Well known | Hackney EC2A 3LT | founded 2016 | last round $38M, Sep 2021 | Companies House 10184077 | incorporated 2016-05-17 | SIC 62012 | licensed visa sponsor | London HQ | backed by Atomico, Entrepreneur First, LocalGlobe | near Shoreditch High Street (402 m) | https://www.accurx.com | sources: [funding](https://www.forbes.com/sites/iainmartin/2021/09/15/tech-minnow-that-helped-power-britains-covid-vaccination-campaigns-raises-38-million/?sh=369e30fa3b99), [growth](https://www.accurx.com/press), [address](https://www.linkedin.com/company/accurx), [presence](https://builtinlondon.uk/company/accurx) - **Airfinity** (`airfinity`): Airfinity sells AI forecasting and intelligence on infectious and cardiometabolic disease to pharma companies, governments and health bodies. Health (also AI) / Health forecasting | Up and coming | Camden WC2H 9JQ | founded 2015 | Companies House 09502389 | incorporated 2015-03-20 | 67 staff in filed accounts (period to 2025-12-31) | SIC 62090 | licensed visa sponsor | London HQ | backed by Gresham House Ventures, IQT, MD One Ventures, The FSE Group | near Covent Garden (208 m) | https://www.airfinity.com | sources: [growth](https://www.airfinity.com), [address](https://www.airfinity.com/privacy-policy), [presence](https://www.airfinity.com/careers) - **Alchemab Therapeutics** (`alchemab-therapeutics`): Develops antibody therapeutics found in the immune systems of disease-resilient people, using AI on antibody repertoires. Health (also AI) / Antibody Discovery | Fastest growing | Camden N1C 4AX | founded 2019 | last round Series A extension, £25M, Jul 2026 | Companies House 12156844 | incorporated 2019-08-14 | SIC 72110 | licensed visa sponsor | London HQ | backed by British Business Bank, Camford Partners, DCVC Bio, Dementia Discovery Fund, Eli Lilly, Lightstone Ventures, Ono Venture Investment, RA Capital, SV Health Investors | near King's Cross & St Pancras International (80 m) | https://www.alchemab.com | sources: [funding](https://european-biotechnology.com/?p=21087), [growth](https://european-biotechnology.com/?p=21087), [address](https://www.alchemab.com/contact), [presence](https://builtinlondon.uk/company/alchemab-therapeutics) - **Anima Health** (`anima-health`): Care platform for GP practices that combines online consultations with triage, scheduling, document processing and an AI scribe. Health / Primary care software | Up and coming | Camden WC2H 9JQ | founded 2021 | last round Series A, $12M, Mar 2024 | Companies House 12205370 | incorporated 2019-09-13 | 14 staff in filed accounts (period to 2024-12-31) | SIC 86101, 86210, 86220, 86900 | hiring 8 in London | licensed visa sponsor | work model mixed (8 London job posts) | London HQ | Y Combinator W21 | backed by Molten Ventures, Amino Collective, Hummingbird Ventures, Y Combinator | near Covent Garden (208 m) | https://www.animahealth.com | sources: [funding](https://www.siliconrepublic.com/start-ups/molten-ventures-anima-funding-series-a-healthcare-platform), [growth](https://www.animahealth.com/), [address](https://www.animahealth.com/), [presence](https://jobs.ashbyhq.com/Anima) - **Apian** (`apian`): Runs autonomous drone and ground robot delivery of blood samples and medicines between NHS hospitals. Health / Medical logistics | Up and coming | Southwark SE1 8HP | founded 2020 | raised £5M (~$6.3M) | last round Seed, £5M, 2022 | Companies House 12578044 | incorporated 2020-04-29 | 21 staff in filed accounts (period to 2025-10-31) | SIC 86900 | London HQ | backed by KHP Ventures, LocalGlobe | near Southwark (222 m) | https://www.apian.health | sources: [funding](https://techcrunch.com/2024/09/17/londoners-will-soon-see-drones-ferrying-blood-between-hospitals), [growth](https://www.phoenixcourt.vc/news/apian-driving-healthcares-physical-ai-transformation), [address](https://www.apian.health), [presence](https://www.apian.health) - **AstronauTx** (`astronautx`): Biotech developing drugs that improve sleep architecture to treat Alzheimer's, Parkinson's and other neurological disorders. Health / Neuroscience biotech | Up and coming | City of London WC1V 7QT | founded 2019 | raised £48M (~$61M) | last round Series A, £48M, Oct 2023 | Companies House 11919384 | incorporated 2019-04-01 | SIC 72110 | licensed visa sponsor | London HQ | backed by Novartis Venture Fund, Brandon Capital, Bristol Myers Squibb, Dementia Discovery Fund, EQT Life Sciences, MPM Capital, UCL Technology Fund, UK Future Fund | near Chancery Lane (49 m) | https://astronautx.bio | sources: [funding](https://svhealthinvestors.com/news/astronautx-closes-a-48-million-61-million-series-a-financing-to-create-new-treatments-for-alzheimers-disease), [growth](https://astronautx.bio/news/), [address](https://astronautx.bio/contact/), [presence](https://astronautx.bio/contact/) - **Augmentive** (`augmentive`): Online platform giving access to psychiatrists, therapists and coaches for ADHD, autism and mental health assessments and care. Health / Mental health | Fastest growing | Hammersmith and Fulham W6 0NB | founded 2020 | raised £2.8M (~$3.6M) | Companies House 12464843 | incorporated 2020-02-14 | 5 staff in filed accounts (period to 2025-02-28) | SIC 86900 | London HQ | on Sifted 100 UK & Ireland 2026, #38 | near Hammersmith (224 m) | https://augmentive.io/ | sources: [funding](https://email.sifted.eu/hubfs/Sifted%20100%20UK%20%26%20Ireland%202026%20Report.pdf), [growth](https://email.sifted.eu/hubfs/Sifted%20100%20UK%20%26%20Ireland%202026%20Report.pdf), [address](https://find-and-update.company-information.service.gov.uk/company/12464843), [presence](https://augmentive.io/about-us) - **Autolus** (`autolus`): Autolus develops and sells CAR-T cell therapies for cancer, including the approved therapy AUCATZYL. Health / Cell therapy | Well known | Hammersmith and Fulham W12 7FP | Companies House 11185179 | incorporated 2018-02-02 | SIC 64209, 72110 | licensed visa sponsor | London HQ | backed by Blackstone | near White City (292 m) | https://www.autolus.com | sources: [growth](https://www.sec.gov/Archives/edgar/data/1730463/000173046326000038/autl-20251231.htm), [address](https://www.sec.gov/Archives/edgar/data/1730463/000173046326000038/autl-20251231.htm), [presence](https://www.sec.gov/Archives/edgar/data/1730463/000173046326000038/autl-20251231.htm) - **AviadoBio** (`aviadobio`): Develops gene therapies for neurodegenerative diseases, with its lead candidate AVB-101 in a Phase 1/2 trial for genetic frontotemporal dementia. Health / Gene therapy | Up and coming | Tower Hamlets E14 5GX | founded 2019 | last round Strategic equity, $20M from Astellas, Oct 2024 | Companies House 12373955 | incorporated 2019-12-20 | SIC 72110 | licensed visa sponsor | London HQ | backed by Astellas, Treat FTD Fund | near Canary Wharf (310 m) | https://aviadobio.com | sources: [growth](https://business-news-today.com/aviadobio-opens-fourth-aspire-ftd-cohort-as-avb-101-regains-full-development-rights-and-secures-fresh-backing-from-leading-dementia-foundations/), [address](https://find-and-update.company-information.service.gov.uk/company/12373955), [presence](https://dealroom.co/companies/aviadobio/) - **Bactobio** (`bactobio`): Uses AI, genomics and synthetic biology to grow unexplored microbes and find new antibiotics and crop protection compounds. Health / Antimicrobial Discovery | Up and coming | Lambeth SE11 5JH | founded 2020 | last round Bridge, £6M, Jan 2023 | Companies House 12614308 | incorporated 2020-05-20 | 51 staff in filed accounts (period to 2025-12-31) | SIC 72110 | licensed visa sponsor | London HQ | on LinkedIn Top Startups UK 2024, #15 | backed by Bridford Group, Entangle Group | near Vauxhall (346 m) | https://www.bacto.bio | sources: [funding](https://www.bacto.bio/newsroom), [growth](https://www.bacto.bio/newsroom), [address](https://find-and-update.company-information.service.gov.uk/company/12614308), [presence](https://www.bacto.bio/contact) - **Baseimmune** (`baseimmune`): Uses computational design and protein engineering to create custom antigens for vaccines and active immunotherapies. Health (also AI) / AI immunotherapy | Up and coming | Camden NW1 0QE | founded 2019 | last round Series A, $11.3M, Feb 2024 | Companies House 12289125 | incorporated 2019-10-30 | 21 staff in filed accounts (period to 2025-12-31) | SIC 72110 | licensed visa sponsor | London HQ | backed by IQ Capital, MSD Global Health Innovation Fund, Beast Ventures, Creator Fund, Hoxton Ventures, Maki.vc | near Mornington Crescent (592 m) | https://baseimmune.co.uk | sources: [funding](https://www.biospace.com/baseimmune-raises-11-3m-in-series-a-funding-to-develop-better-vaccines-faster), [growth](https://www.biospace.com/baseimmune-raises-11-3m-in-series-a-funding-to-develop-better-vaccines-faster), [address](https://baseimmune.co.uk/), [presence](https://baseimmune.co.uk/) - **Beacon Therapeutics** (`beacon-therapeutics`): Clinical-stage gene therapy company developing treatments for retinal diseases such as X-linked retinitis pigmentosa. Health / Ophthalmic Gene Therapy | Fastest growing | Islington N7 9AS | founded 2022 | last round Series C, $75M+, Jan 2026 | Companies House 14426488 | incorporated 2022-10-18 | SIC 72110 | London HQ | backed by Goldman Sachs Alternatives, Advent Life Sciences, Forbion, Oxford Science Enterprises, Retinal Degeneration Fund, Syncona | near Caledonian Road & Barnsbury (580 m) | https://beacontx.com | sources: [funding](https://www.beacontx.com/news-and-events/beacon-therapeutics-announces-closing-of-oversubscribed-series-c-financing-for-over-75-million/), [growth](https://www.beacontx.com/news-and-events/beacon-therapeutics-announces-closing-of-oversubscribed-series-c-financing-for-over-75-million/), [address](https://beacontx.com/contact/), [presence](https://app.dealroom.co/companies/beacon_therapeutics) - **Birdie** (`birdie`): Care management, rostering and finance software for UK homecare providers. Health / Home Care Software | Up and coming | Camden WC1V 6HG | founded 2017 | raised $52M | last round Series B, $30M, Jun 2022 | Companies House 10863579 | incorporated 2017-07-12 | SIC 82990 | hiring 3 in London | licensed visa sponsor | work model hybrid (2 London job posts) | London HQ | on Sifted 100 UK & Ireland 2024, #63; Tech Nation Future Fifty 2024; Deloitte UK Technology Fast 50 2023, #6 | backed by Index Ventures, OMERS Ventures, Sofina | near Chancery Lane (162 m) | https://www.birdie.care | sources: [funding](https://www.birdie.care/blog/birdie-have-just-raised-30-million-dollars-in-series-b), [growth](https://www.birdie.care/blog/birdies-year-in-review-2025), [address](https://jobs.ashbyhq.com/birdie), [presence](https://www.birdie.care/about-us) - **C the Signs** (`c-the-signs`): AI tool that scans patient records to flag people at risk of cancer and guide doctors to the right tests. Health (also AI) / Cancer detection AI | Up and coming | Camden N1C 4AG | founded 2017 | last round Investment, $8M, Jan 2025 | Companies House 10683539 | incorporated 2017-03-22 | SIC 62090, 86900 | licensed visa sponsor | London HQ | backed by Khosla Ventures | near King's Cross & St Pancras International (225 m) | https://www.cthesigns.com | sources: [funding](https://pulse2.com/c-the-signs-raises-8-million-from-khosla-ventures/), [growth](https://pulse2.com/c-the-signs-raises-8-million-from-khosla-ventures/), [address](https://www.cthesigns.com/privacy), [presence](https://www.cthesigns.com/privacy) - **Cera** (`cera`): Home healthcare provider using AI and data to deliver care visits and cut hospital admissions. Health / Home Healthcare | Well known | Camden NW1 8NZ | founded 2015 | last round $150M, Jan 2025 | Companies House 09874278 | incorporated 2015-11-16 | SIC 70100, 88100 | licensed visa sponsor | London HQ | backed by BDT & MSD Partners, Schroders Capital | near Camden Road (242 m) | https://www.ceracare.co.uk | sources: [funding](https://www.cityam.com/cera-secures-150m-funding-for-ai-led-healthcare/), [growth](https://www.cityam.com/?p=1785763), [address](https://www.ceracare.co.uk/privacy-policy), [presence](https://builtinlondon.uk/company/cera) - **CHARM Therapeutics** (`charm-therapeutics`): AI-driven drug discovery company developing a next-generation menin inhibitor for acute myeloid leukaemia, based in London and Cambridge. Health (also AI) / AI Drug Discovery | Fastest growing | Camden N1C 4AG | founded 2021 | raised $150M+ | last round Series B, $80M, Sep 2025 | Companies House 13641471 | incorporated 2021-09-24 | SIC 62090, 72110 | licensed visa sponsor | London HQ | backed by New Enterprise Associates, SR One, F-Prime Capital, Khosla Ventures, NVIDIA, OrbiMed | near King's Cross & St Pancras International (225 m) | https://charmtx.com | sources: [funding](https://uk.finance.yahoo.com/news/charm-therapeutics-raises-80-million-110000828.html), [growth](https://uk.finance.yahoo.com/news/charm-therapeutics-raises-80-million-110000828.html), [address](https://charmtx.com/contact), [presence](https://www.cyberdb.co/ai-vendor/charm-therapeutics/) - **CoMind** (`comind`): Builds non-invasive bedside devices that monitor brain blood flow and pressure in critically ill patients. Health / Neuromonitoring | Fastest growing | Islington N1 9JY | founded 2018 | last round $102.5M, Oct 2025 | Companies House 11729526 | incorporated 2018-12-17 | 54 staff in filed accounts (period to 2025-12-31) | SIC 62090 | hiring 9 in London | licensed visa sponsor | work model on-site (9 London job posts) | London HQ | backed by Plural, Angelini Ventures, BACKED VC, Crane Venture Partners, Entrepreneur First, LocalGlobe, Octopus Ventures | near King's Cross & St Pancras International (247 m) | https://www.comind.io | sources: [funding](https://www.comind.io/news/comind-announces-102-5m-funding-to-redefine-clinical-monitoring-of-the-brain), [growth](https://www.comind.io/news/comind-announces-102-5m-funding-to-redefine-clinical-monitoring-of-the-brain), [address](https://find-and-update.company-information.service.gov.uk/company/11729526), [presence](https://builtinlondon.uk/company/comind) - **Compass Pathways** (`compass-pathways`): Compass Pathways is developing COMP360 psilocybin treatment for treatment-resistant depression. Health / Psychedelic medicine | Fastest growing | Westminster W1F 0DQ | founded 2016 | last round Public offering, about $150M, Feb 2026 | Companies House 12696098 | incorporated 2020-06-24 | SIC 64209 | London HQ | near Piccadilly Circus (397 m) | https://compasspathways.com | sources: [funding](https://www.sec.gov/Archives/edgar/data/1816590/000162828026009499/cmps-2025prosuppfinal.htm), [growth](https://www.sec.gov/Archives/edgar/data/1816590/000162828026009499/cmps-2025prosuppfinal.htm), [address](https://www.sec.gov/Archives/edgar/data/1816590/000162828026009499/cmps-2025prosuppfinal.htm), [presence](https://www.sec.gov/Archives/edgar/data/1816590/000162828026009499/cmps-2025prosuppfinal.htm) - **Cytospire Therapeutics** (`cytospire-therapeutics`): Develops multispecific antibodies that engage gamma delta T cells to treat solid tumour cancers. Health / Immuno-oncology | Fastest growing | Tower Hamlets E14 5GX | founded 2023 | last round Series A, £61M, May 2026 | Companies House 14688240 | incorporated 2023-02-24 | SIC 72110 | licensed visa sponsor | London HQ | backed by 4BIO Capital, Abingworth, British Business Bank, Criteria Bio Ventures, LifeArc Ventures, Medical Incubator Japan, Modi Ventures, Pathway Bioventures, Servier Ventures, Sound Bioventures | near Canary Wharf (310 m) | https://www.cytospire.com | sources: [funding](https://www.cytospire.com/cytospire-therapeutics-announces-oversubscribed-61-million-83m-series-a-financing-to-advance-pipeline-of-first-in-class-pan-gamma-delta-t-cell-engagers-into-clinical-trials-for-the-treatment-of-can/), [growth](https://www.cytospire.com/cytospire-therapeutics-announces-oversubscribed-61-million-83m-series-a-financing-to-advance-pipeline-of-first-in-class-pan-gamma-delta-t-cell-engagers-into-clinical-trials-for-the-treatment-of-can/), [address](https://www.cytospire.com/contact-us/), [presence](https://www.cytospire.com/contact-us) - **Doccla** (`doccla`): Virtual wards and remote patient monitoring so patients can be cared for at home, used across NHS regions. Health / Virtual Wards | Up and coming | Hammersmith and Fulham W6 7NL | founded 2019 | last round Series B, £35M, Sep 2024 | Companies House 12206481 | incorporated 2019-09-13 | SIC 70229, 71200, 86900 | licensed visa sponsor | London HQ | backed by General Catalyst, Giant Ventures, Lakestar, Speedinvest, Bertelsmann Investments, Elaia | near Hammersmith (371 m) | https://doccla.com | sources: [funding](https://tech.eu/2024/09/03/doccla-bags-35m-for-european-expansion/), [growth](https://tech.eu/2024/09/03/doccla-bags-35m-for-european-expansion/), [address](https://doccla.com/contact), [presence](https://www.uktech.news/news/london-based-medtech-doccla-grabs-2-4m-funding-for-at-home-virtual-wards-to-support-nhs-20210915) - **DrDoctor** (`drdoctor`): Patient engagement platform for NHS trusts that handles appointment communications, self-booking, voice agents and missed-appointment prediction, integrated with hospital patient record systems. Health / Patient engagement | Up and coming | Islington EC1V 2NX | founded 2012 | last round Series B, £10M, Feb 2023 | Companies House 08149394 | incorporated 2012-07-19 | SIC 61900, 62012, 72190, 86900 | licensed visa sponsor | London HQ | backed by YFM Equity Partners, 24 Haymarket, Ananda Impact Ventures | near Old Street (146 m) | https://www.drdoctor.co.uk | sources: [funding](https://www.drdoctor.co.uk/blog/scaling-up-our-impact-with-series-b-funding), [growth](https://www.drdoctor.co.uk/), [address](https://www.drdoctor.co.uk/privacy-notice), [presence](https://builtinlondon.uk/company/drdoctor/offices) - **Dyad** (`dyad`): AI that turns unstructured clinical documents into coded, structured data for GP practices, payers and providers. Health / Clinical data AI | Up and coming | Hackney EC2A 4NE | founded 2020 | last round Series A, £7.5M, Apr 2026 | Companies House 12626064 | incorporated 2020-05-27 | 31 staff in filed accounts (period to 2025-05-31) | SIC 62090 | licensed visa sponsor | London HQ | backed by Sangha Capital, Carbide Ventures | near Old Street (321 m) | https://dyad.ai | sources: [funding](https://dealroom.co/news/157527-dyad-raises-7-5m-to-turn-clinical-paperwork-into-data/), [growth](https://dealroom.co/news/157527-dyad-raises-7-5m-to-turn-clinical-paperwork-into-data/), [address](https://find-and-update.company-information.service.gov.uk/company/12626064), [presence](https://www.linkedin.com/company/dyad-ai) - **Ellipses Pharma** (`ellipses-pharma`): London oncology drug developer that in-licenses cancer assets and funds them through clinical trials. Health / Oncology Drug Development | Up and coming | Westminster W1J 8LG | founded 2015 | Companies House 09542015 | incorporated 2015-04-14 | SIC 74909 | licensed visa sponsor | London HQ | backed by West Coast Capital | near Green Park (119 m) | https://www.ellipses.life | sources: [growth](https://www.ellipses.life/news), [address](https://www.ellipses.life/contact), [presence](https://www.ellipses.life) - **Engitix** (`engitix`): Drug discovery company using human extracellular matrix models to develop therapies for fibrosis and solid tumours. Health / ECM Drug Discovery | Fastest growing | Hammersmith and Fulham W12 7FQ | founded 2016 | last round Series A extension, £18.6M, Jan 2026 | Companies House 10290441 | incorporated 2016-07-21 | SIC 72110 | hiring 4 in London | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2024, #70 | backed by Netherton Investments | near White City (311 m) | https://engitix.com | sources: [funding](https://funding.tech.eu/deals/48508008-3518-47B5-8A39-E93B76A7C67D), [growth](https://funding.tech.eu/deals/48508008-3518-47B5-8A39-E93B76A7C67D), [address](https://engitix.com), [presence](https://bioworld.com/articles/515264-engitix-raises-54m-to-advance-ecm-target-discovery-platform) - **Entia** (`entia`): Entia makes Liberty, a home finger-prick blood analyser that returns results in minutes and shares them with the patient's healthcare professional. Health / Home diagnostics | Up and coming | City of London EC3N 3AX | last round Series A, £16M, Jul 2023 | Companies House 09283492 | incorporated 2014-10-28 | 27 staff in filed accounts (period to 2025-11-30) | SIC 32500, 72110 | licensed visa sponsor | London HQ | backed by BGF, Parkwalk, Sussex Place Ventures | near Tower Hill (232 m) | https://entia.co | sources: [funding](https://tech.eu/2023/07/27/remote-atient-monitoring-for-cancer-treatment-enita-raises-ps16m-in-series-a-funding/), [growth](https://tech.eu/2023/07/27/remote-atient-monitoring-for-cancer-treatment-enita-raises-ps16m-in-series-a-funding/), [address](https://entia.co), [presence](https://tech.eu/2023/07/27/remote-atient-monitoring-for-cancer-treatment-enita-raises-ps16m-in-series-a-funding/) - **Epsilogen** (`epsilogen`): Develops IgE, IgA and IgG antibody therapeutics for cancer, with lead candidate MOv18 IgE in a Phase Ib trial in platinum-resistant ovarian cancer. Health / Cancer antibodies | Up and coming | Hammersmith and Fulham W6 9RH | founded 2016 | last round Series B extension, £12.5M, Sep 2024 | Companies House 10295520 | incorporated 2016-07-26 | 22 staff in filed accounts (period to 2025-12-31) | SIC 72190 | licensed visa sponsor | London HQ | backed by 3B Future Health Fund, ALSA Ventures, British Patient Capital, Epidarex Capital, Novartis Venture Fund, Schroders Capital | near Hammersmith (764 m) | https://www.epsilogen.com | sources: [funding](https://www.samedanltd.com/press-releases/epsilogen-completes-12-5-million-series-b-financing-expansion/), [growth](https://www.samedanltd.com/press-releases/epsilogen-completes-12-5-million-series-b-financing-expansion/), [address](https://epsilogen.com/about-us/), [presence](https://tech.eu/2022/03/02/london-based-epsilogen-nabs-ps3075-million-to-develop-antibodies-for-cancer-treatment/) - **Fertifa** (`fertifa`): Provides employers with reproductive health benefits covering fertility, menopause, men's health and neurodiversity, including clinical consultations, testing and treatment financing. Health / Reproductive health benefits | Up and coming | Westminster WC2R 0EX | founded 2019 | last round Seed, £5M, Jun 2023 | Companies House 12151532 | incorporated 2019-08-12 | 29 staff in filed accounts (period to 2025-12-31) | SIC 86900 | licensed visa sponsor | London HQ | backed by Notion Capital, Triple Point, Calm/Storm, Conviction, EQT Foundation, Lemonade Stand, Passion Capital, Speedinvest, Tiny VC | near Covent Garden (377 m) | https://www.fertifa.com | sources: [funding](https://tech.eu/2023/06/30/fertifa-raises-5-million-expand-to-its-reproductive-health-benefits-platform-for-the-workplace/), [growth](https://femtechinsider.com/fertifa-acquires-juniper-reproductive-health-to-expand-european-benefits-platform/), [address](https://www.fertifa.com), [presence](https://tech.eu/2023/06/30/fertifa-raises-5-million-expand-to-its-reproductive-health-benefits-platform-for-the-workplace/) - **Fiit** (`fiit`): Fitness app with on-demand and live workout classes for home, gym and connected equipment, on phones, web and TV platforms. Health / Connected fitness | Up and coming | Hackney E15 2GW | founded 2017 | last round Crowdfunding, £1M, Apr 2022 | Companies House 10713969 | incorporated 2017-04-06 | 18 staff in filed accounts (period to 2025-12-31) | SIC 62090 | licensed visa sponsor | London HQ | backed by Connect Ventures, JamJar Investments, Rooks Nest Ventures, Westminster Capital | near Hackney Wick (409 m) | https://fiit.tv | sources: [funding](https://www.healthclubmanagement.co.uk/health-club-management-news/Fiit-raises-1m-to-build-chain-of-hybrid-fitness-studios-Assault-Fitness-hybrid-The-Gym-Group-Samsung-Sky-TV-Amazon/349366), [growth](https://fiit.tv), [address](https://find-and-update.company-information.service.gov.uk/company/10713969), [presence](https://find-and-update.company-information.service.gov.uk/company/10713969) - **Flo Health** (`flo-health`): Period, ovulation and pregnancy tracking app with over 70 million monthly active users. Health / Femtech | Well known | Tower Hamlets E1W 1UN | founded 2015 | raised $269.5M | last round Series C, $200M+, Jul 2024 | Companies House 12898410 | incorporated 2020-09-23 | SIC 82990 | hiring 13 in London | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2026, #83 | backed by Flint Capital, Founders Fund, General Atlantic, Mangrove Capital Partners, Target Global, VNV Global, Haxus Venture Fund | near Tower Hill (355 m) | https://flo.health | sources: [funding](https://en.wikipedia.org/wiki/Flo_(app)), [growth](https://en.wikipedia.org/wiki/Flo_(app)), [address](https://flo.health/privacy-policy), [presence](https://en.wikipedia.org/wiki/Flo_(app)) - **Florence** (`florence`): Workforce platform for care providers covering rotas, payroll, compliance training, agency spend and access to vetted temporary care staff. Health / Care workforce software | Up and coming | Hackney EC2A 4DS | raised $50M | last round Series B, $35M, Jun 2022 | Companies House 10434349 | incorporated 2016-10-18 | SIC 82990 | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2024, #60 | backed by AXA Venture Partners, Roo Capital, Seek Investments | near Old Street (453 m) | https://www.florence.co.uk | sources: [funding](https://florence.co.uk/blog/series-b), [growth](https://www.florence.co.uk/), [address](https://www.florence.co.uk/), [presence](https://www.florence.co.uk/) - **Frontier Health** (`frontier-health`): Builds Juno, an AI agent that takes on admin work in NHS hospitals to cut delays in patient care. Health (also AI) / NHS Admin AI | Up and coming | City of London EC2Y 5EB | founded 2024 | raised $16M | last round Seed, $16M, Jun 2026 | Companies House 15801722 | incorporated 2024-06-25 | SIC 62012 | hiring 3 in London | licensed visa sponsor | work model on-site (3 London job posts) | London HQ | backed by Atomico, firstminute capital, MMC Ventures, Tenacity Capital, XYZ Venture Capital | near St. Paul's (282 m) | https://frontierhealth.ai | sources: [funding](https://digitalhealth.london/frontier-health-raises-16-million-to-automate-nhs-administration), [growth](https://tech.eu/2026/06/18/former-palantir-healthcare-head-raises-16m-for-nhs-ai-agent-startup/), [address](https://find-and-update.company-information.service.gov.uk/company/15801722), [presence](https://find-and-update.company-information.service.gov.uk/company/15801722) - **GetHarley** (`getharley`): Telehealth platform connecting people with skin clinicians for personalised, medical grade skincare. Health / Digital Dermatology | Up and coming | Westminster NW1 6JJ | founded 2019 | Companies House 11380263 | incorporated 2018-05-24 | SIC 96090 | licensed visa sponsor | London HQ | on LinkedIn Top Startups UK 2023, #6 | backed by Index Ventures | near Marylebone (133 m) | https://www.getharley.com | sources: [growth](https://www.linkedin.com/pulse/linkedin-top-startups-2023-20-uk-companies-rise-linkedin-news-uk-0hapc), [address](https://www.getharley.com/legal/client-terms-and-conditions), [presence](https://uk.linkedin.com/company/getharley) - **Healf** (`healf`): Curated online marketplace for supplements, wellness tech and health products. Health / Wellness Ecommerce | Fastest growing | Hammersmith and Fulham W6 8BJ | founded 2020 | raised £5.5M (~$7M) | Companies House 12740599 | incorporated 2020-07-14 | 35 staff in filed accounts (period to 2025-03-31) | SIC 47910 | hiring 7 in London | licensed visa sponsor | work model mixed (7 London job posts) | London HQ | on Sifted 100 UK & Ireland 2026, #1 | backed by Bray Capital, Iris Ventures, Verve Capital | near Hammersmith (340 m) | https://www.healf.com | sources: [funding](https://www.datocms-assets.com/60124/1774006698-sifted-100-uk-ireland-2026.pdf), [growth](https://www.datocms-assets.com/60124/1774006698-sifted-100-uk-ireland-2026.pdf), [address](https://api.ashbyhq.com/posting-api/job-board/healf), [presence](https://uk.linkedin.com/company/healf) - **HealthHero** (`healthhero`): Digital-first clinic offering virtual GP, mental health and extended care services to patients across Europe. Health / Digital healthcare | Well known | Westminster W1H 6DU | Companies House 10675063 | incorporated 2017-03-16 | SIC 82990 | licensed visa sponsor | London HQ | near Marble Arch (248 m) | https://www.healthhero.com | sources: [growth](https://www.reveliolabs.com/companies/healthhero/employees/), [address](https://www.healthhero.com/uk/contact-us), [presence](https://www.healthhero.com/uk/contact-us) - **Healthtech-1** (`healthtech-1`): Automates GP practice admin such as patient registration, triage and booking for the NHS. Health / NHS Admin Automation | Up and coming | Newham E15 4BZ | raised $3.5M | last round Seed, $3.5M, Sep 2024 | Companies House 13524762 | incorporated 2021-07-22 | 29 staff in filed accounts (period to 2025-12-31) | SIC 62012 | hiring 6 in London | licensed visa sponsor | work model mixed (6 London job posts) | London HQ | Y Combinator S23 | backed by Y Combinator | near Maryland (445 m) | https://www.healthtech1.uk | sources: [funding](https://www.ycombinator.com/companies/healthtech-1), [growth](https://jobs.ashbyhq.com/Healthtech-1), [address](https://jobs.ashbyhq.com/Healthtech-1), [presence](https://sifted.eu/articles/healthtech-1-raise-monzo-alumni-news) - **HelloSelf** (`helloself`): HelloSelf matches people with accredited therapists and coaches for online sessions, with an AI companion tool used between sessions. Health / Mental health | Up and coming | Hackney EC2A 3JT | founded 2018 | raised £23.8M (~$30.2M) | last round Series B, $20M, Mar 2023 | Companies House 11352803 | incorporated 2018-05-09 | SIC 72190, 86900 | London HQ | on Sifted 100 UK & Ireland 2024, #73; LinkedIn Top Startups UK 2023, #15 | backed by Octopus Ventures, Mantaray, OMERS Ventures, Oxford Capital | near Old Street (424 m) | https://www.helloself.com/ | sources: [funding](https://content.sifted.eu/wp-content/uploads/2024/04/11080007/Sifted-100-UK-Ireland.pdf), [growth](https://www.helloself.com/), [address](https://www.helloself.com/), [presence](https://content.sifted.eu/wp-content/uploads/2024/04/11080007/Sifted-100-UK-Ireland.pdf) - **Hertility** (`hertility`): At-home hormone and fertility testing with specialist care for women. Health / Femtech | Up and coming | Westminster W1W 5PF | founded 2019 | raised $14M+ | Companies House 11814367 | incorporated 2019-02-08 | 53 staff in filed accounts (period to 2026-03-31) | SIC 86900 | hiring 1 in London | London HQ | on LinkedIn Top Startups UK 2024, #3 | backed by LocalGlobe, Venrex | near Great Portland Street (244 m) | https://hertilityhealth.com | sources: [funding](https://techcrunch.com/2024/10/07/emma-watson-invests-in-reproductive-health-company-hertility/), [growth](https://techcrunch.com/2024/10/07/emma-watson-invests-in-reproductive-health-company-hertility/), [address](https://hertilityhealth.com/legal/privacy), [presence](https://hertilityhealth.com/legal/privacy) - **Hexarad** (`hexarad`): Teleradiology platform that matches scans to subspecialist radiologists and helps hospitals run imaging departments. Health / Teleradiology | Up and coming | Southwark SE1 3LW | last round €13M, Aug 2024 | Companies House 10249971 | incorporated 2016-06-24 | SIC 86900 | licensed visa sponsor | London HQ | on Tech Nation Future Fifty 2025 | backed by MTIP, Foresight Group | near London Bridge (911 m) | https://www.hexarad.com | sources: [funding](https://www.hexarad.com/news), [growth](https://businesscloud.co.uk/news/tech-nations-latest-future-fifty-revealed-at-10-downing-street/), [address](https://www.hexarad.com/contact), [presence](https://app.mergerlinks.com/companies/hexarad) - **Huma** (`huma`): Digital health platform for remote patient monitoring, clinical research and disease management apps. Health / Digital Health Platform | Fastest growing | Westminster SW1P 4QP | founded 2011 | raised $300M+ | last round Series D, $80M+, Jul 2024 | Companies House 07725451 | incorporated 2011-08-02 | SIC 61900, 62090 | licensed visa sponsor | London HQ | backed by AstraZeneca, HAT SGR, Hitachi Ventures, Leaps by Bayer | near Pimlico (633 m) | https://www.huma.com | sources: [funding](https://www.huma.com/newsroom/press-release-series-d-launches-huma-cloud-platform-genai), [growth](https://www.huma.com/newsroom/press-release-series-d-launches-huma-cloud-platform-genai), [address](https://www.huma.com/about), [presence](https://builtinlondon.uk/company/huma) - **Hurdle** (`hurdle`): API-first diagnostics platform that handles at-home sample collection, lab testing, logistics and biomarker discovery for health companies. Health / Diagnostics infrastructure | Up and coming | Merton SW19 3TZ | founded 2017 | Companies House 11120038 | incorporated 2017-12-20 | 33 staff in filed accounts (period to 2024-12-31) | SIC 72110 | licensed visa sponsor | London HQ | backed by Anthemis, SOSV | near South Wimbledon (703 m) | https://hurdle.bio | sources: [funding](https://tech.eu/2019/01/09/london-based-healthtech-startup-chronomics-raises-1-12-million), [growth](https://itbrief.co.uk/story/hurdle-invests-usd-20m-in-ai-diagnostics-for-2025), [address](https://find-and-update.company-information.service.gov.uk/company/11120038), [presence](https://hurdle.bio) - **Hypervision Surgical** (`hypervision-surgical`): King's College London spinout using hyperspectral imaging and AI to help surgeons see tissue in real time. Health / Surgical Imaging | Fastest growing | Lambeth SE1 7AR | founded 2020 | last round Series A, £17M, Apr 2026 | Companies House 12614766 | incorporated 2020-05-20 | 13 staff in filed accounts (period to 2024-12-31) | SIC 74909 | licensed visa sponsor | London HQ | on Tech Nation Upscale 2026 | backed by Heal Capital, Angelini Ventures, Daycrest, HERAN Partners, IP Group, LifeX Ventures, Redalpine, SINC Fund, ZEISS Ventures | near Lambeth North (558 m) | https://hypervisionsurgical.com | sources: [funding](https://hypervisionsurgical.com/blog/2026-04_series-a/), [growth](https://hypervisionsurgical.com/blog/2026-04_series-a/), [address](https://hypervisionsurgical.com), [presence](https://hypervisionsurgical.com) - **IMU Biosciences** (`imu-biosciences`): Maps the immune system in high resolution from blood samples to guide transplant and cancer treatment decisions. Health / Immune Profiling | Fastest growing | Tower Hamlets E14 5GX | raised $60M | last round Series A, $53M, Jun 2026 | Companies House 11881827 | incorporated 2019-03-14 | 26 staff in filed accounts (period to 2025-12-31) | SIC 64209 | London HQ | backed by IQ Capital, Molten Ventures, British Business Bank, Meltwind | near Canary Wharf (310 m) | https://imubiosciences.com | sources: [funding](https://imubiosciences.com/news/53-million-in-series-a-funding-secured), [growth](https://imubiosciences.com/news/53-million-in-series-a-funding-secured), [address](https://imubiosciences.com/contact), [presence](https://www.fiercebiotech.com/medtech/imu-biosciences-nabs-53m-funding-round-decode-immune-system) - **JAAQ** (`jaaq`): Clinically reviewed mental health video content that enterprises and insurers embed in their own platforms. Health / Mental Health Content | Up and coming | Camden WC2H 8TJ | founded 2021 | last round Series A, $17M, Mar 2026 | Companies House 13589848 | incorporated 2021-08-27 | SIC 62090 | London HQ | backed by Fuel Ventures, Guinness Ventures, Meridian Health Ventures | near Tottenham Court Road (266 m) | https://jaaq.app | sources: [growth](https://thenextweb.com/news/jaaq-17m-series-a-mental-health-platform), [address](https://find-and-update.company-information.service.gov.uk/company/13589848), [presence](https://find-and-update.company-information.service.gov.uk/company/13589848) - **Kooth** (`kooth`): Digital mental health platform offering young people online counselling, coaching and peer support, delivered under contracts with health systems and US states. Health / Digital mental health | Up and coming | Westminster W2 1AY | Companies House 12526594 | incorporated 2020-03-19 | SIC 86900 | London HQ | near Edgware Road (Bakerloo) (261 m) | https://www.kooth.com | sources: [growth](https://www.investegate.co.uk/announcement/rns/kooth--koo/trading-update/9390207), [address](https://find-and-update.company-information.service.gov.uk/company/12526594), [presence](https://find-and-update.company-information.service.gov.uk/company/12526594) - **Lantum** (`lantum`): Workforce scheduling platform that helps NHS GP practices and trusts roster staff and book locum clinicians. Health / Workforce software | Up and coming | Hackney EC2A 4EG | raised $15M | last round $15M, led by Finch Capital, Mar 2022 | Companies House 07529895 | incorporated 2011-02-15 | SIC 62012, 82990 | hiring 1 in London | licensed visa sponsor | London HQ | backed by Finch Capital, Cedars-Sinai, Piton Capital, Samos | near Old Street (450 m) | https://lantum.com | sources: [funding](https://www.privateequitywire.co.uk/lantum-raises-usd15m-funding-round-led-finch-capital/), [growth](https://www.privateequitywire.co.uk/lantum-raises-usd15m-funding-round-led-finch-capital/), [address](https://find-and-update.company-information.service.gov.uk/company/07529895), [presence](https://app.welcometothejungle.com/companies/Lantum) - **Leucid Bio** (`leucid-bio`): King's College London spinout developing Lateral CAR-T cell therapies for solid tumours, now in a Phase I/IIa trial. Health / CAR-T Therapy | Up and coming | Southwark SE1 9RT | founded 2014 | last round Series A1, £7.2M, Feb 2025 | Companies House 09331486 | incorporated 2014-11-27 | SIC 72110 | licensed visa sponsor | London HQ | backed by 2invest, Epidarex Capital, Vulpes Investment Management, British Business Bank Future Fund, Sofinnova Partners | near London Bridge (284 m) | https://leucid.com | sources: [funding](https://leucid.com/news), [growth](https://www.prnewswire.co.uk/news-releases/leucid-bio-provides-update-on-phase-iiia-aerial-trial-evaluating-lateral-car-t-leu011-for-the-treatment-of-solid-tumours-302608960.html), [address](https://leucid.com), [presence](https://leucid.com) - **Lifebit** (`lifebit`): Federated trusted research environment that lets researchers analyse sensitive health and genomic data without moving it. Health / Biomedical data | Up and coming | Westminster W1B 3HH | founded 2017 | last round Series B, $60M, Sep 2021 | Companies House 10727859 | incorporated 2017-04-18 | SIC 62012 | licensed visa sponsor | London HQ | GitHub lifebit-ai | backed by Tiger Global, Beacon Capital, Eurazeo, Pentech Ventures | near Oxford Circus (236 m) | https://lifebit.ai | sources: [funding](https://mercomcapital.com/federated-genomic-data-startup-lifebit-raises-60-million/), [growth](https://lifebit.ai/), [address](https://lifebit.ai/), [presence](https://lifebit.ai/) - **Limbic** (`limbic`): Clinical AI for mental health services, handling patient intake, assessment and between-session support. Health (also AI) / Mental health AI | Up and coming | Islington EC1V 2NX | founded 2017 | last round Venture round led by Khosla Ventures, $14M, Mar 2024 | Companies House 11093861 | incorporated 2017-12-04 | SIC 62090 | licensed visa sponsor | London HQ | backed by Khosla Ventures | near Old Street (146 m) | https://limbic.ai | sources: [funding](https://www.finanznachrichten.de/nachrichten-2024-03/61592422-limbic-raises-dollar-14m-to-bring-ai-powered-mental-health-support-proven-in-the-world-s-largest-public-health-system-to-u-s-providers-004.htm), [growth](https://limbic.ai/about), [address](https://find-and-update.company-information.service.gov.uk/company/11093861), [presence](https://api.ashbyhq.com/posting-api/job-board/limbic) - **Lindus Health** (`lindus-health`): Tech-enabled research organisation running faster, fixed-fee clinical trials for biotech and pharma. Health / Clinical Trials | Fastest growing | Southwark SE1 0HR | founded 2021 | raised $73M | last round Series B, $55M, Jan 2025 | Companies House 13298185 | incorporated 2021-03-29 | SIC 62012 | hiring 2 in London | licensed visa sponsor | London office, HQ elsewhere | on Tech Nation Future Fifty 2024 | backed by Balderton Capital, Creandum, firstminute capital, Seedcamp, Visionaries Club | near Borough (517 m) | https://www.lindushealth.com | sources: [funding](https://www.clinicaltrialsarena.com/news/lindus-health-completes-55m-funding-round/), [growth](https://pulse2.com/lindus-health-anti-cro-company-raises-55-million-series-b), [address](https://www.lindustx.com/privacy-policy), [presence](https://www.employbl.com/companies/lindus-health) - **Lottie** (`lottie`): Online marketplace helping families find and compare care homes and later-life care across the UK. Health / Elderly Care Marketplace | Fastest growing | Southwark SE1 3UD | founded 2021 | raised $31M | Companies House 13084956 | incorporated 2020-12-16 | SIC 62012 | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2026, #60; Deloitte UK Technology Fast 50 2025, #3; LinkedIn Top Startups UK 2025, #18; LinkedIn Top Startups UK 2024, #1 | backed by Accel, General Catalyst, Kindred Capital | near London Bridge (564 m) | https://lottie.org | sources: [funding](https://siliconcanals.com/lottie-raises-19-9m/), [growth](https://www.datocms-assets.com/60124/1774006698-sifted-100-uk-ireland-2026.pdf), [address](https://lottie.org/terms-of-platform-use/), [presence](https://find-and-update.company-information.service.gov.uk/company/13084956) - **Medefer** (`medefer`): Medefer runs remote consultant-led outpatient care for NHS trusts and private patients, coordinating any in-person tests through partner sites. Health / Virtual outpatients | Up and coming | Westminster W2 6LG | founded 2013 | last round Growth round, £10M, Sep 2020 (led by Nickleby Capital) | Companies House 08770754 | incorporated 2013-11-12 | SIC 62012, 86900 | licensed visa sponsor | London HQ | backed by Nickleby Capital | near Paddington (153 m) | https://www.medefer.com | sources: [funding](https://www.htworld.co.uk/?p=1073), [growth](https://medefer.com/about-us/), [address](https://find-and-update.company-information.service.gov.uk/company/08770754), [presence](https://find-and-update.company-information.service.gov.uk/company/08770754) - **Mendelian** (`mendelian`): MHRA-registered software that searches GP electronic health records to flag patients who may have rare diseases. Health / Rare disease AI | Up and coming | Hackney EC1V 9EY | founded 2015 | Companies House 09570139 | incorporated 2015-04-30 | 10 staff in filed accounts (period to 2026-04-30) | SIC 62020 | London HQ | near Old Street (277 m) | https://mendelian.co | sources: [funding](https://www.eu-startups.com/2023/03/uk-based-healthtech-startup-mendelian-receives-e1-58-million-to-accelerate-disease-diagnosis/), [growth](https://www.eu-startups.com/2023/03/uk-based-healthtech-startup-mendelian-receives-e1-58-million-to-accelerate-disease-diagnosis/), [address](https://mendelian.co), [presence](https://mendelian.co) - **MiNA Therapeutics** (`mina-therapeutics`): Develops small activating RNA medicines that switch on the body's own genes, with a pipeline starting in genetic medicine. Health / RNA therapeutics | Up and coming | Hammersmith and Fulham W12 0BZ | founded 2008 | last round Series A, $30M, Sep 2020 | Companies House 06527890 | incorporated 2008-03-07 | SIC 72110 | licensed visa sponsor | London HQ | backed by aMoon | near White City (424 m) | https://minatx.com | sources: [funding](https://www.biospace.com/mina-therapeutics-raises-30m-looks-to-propel-its-lead-candidate), [growth](https://minatx.com/), [address](https://minatx.com/contact/), [presence](https://minatx.com/contact/) - **Mytos** (`mytos`): Mytos runs an automated contract manufacturing service that uses its iDEM robotic platform to produce stem cell derived therapies. Health / Cell therapy manufacturing | Up and coming | Hammersmith and Fulham W12 0BZ | founded 2016 | raised $24M | last round Series A, $19M, Nov 2023 | Companies House 09957823 | incorporated 2016-01-19 | 27 staff in filed accounts (period to 2025-12-31) | SIC 26511 | hiring 11 in London | licensed visa sponsor | work model on-site (11 London job posts) | London HQ | Y Combinator S18 | backed by Buckley Ventures, IQ Capital, Wing VC, Y Combinator | near White City (424 m) | https://mytos.bio | sources: [funding](https://jobs.deepscienceventures.com/companies/mytos/jobs/83338305-principal-scientist-pd-msat), [growth](https://www.biospace.com/press-releases/mytos-launches-automated-cdmo-for-scalable-low-cost-manufacturing-of-stem-cell-derived-therapies), [address](https://find-and-update.company-information.service.gov.uk/company/09957823), [presence](https://www.biospace.com/press-releases/mytos-launches-automated-cdmo-for-scalable-low-cost-manufacturing-of-stem-cell-derived-therapies) - **Neko Health** (`neko-health`): Runs clinics offering a full-body scan and same-visit doctor review to spot health risks early. Health / Preventive health | Well known | Tower Hamlets E1 6EA | founded 2018 | last round Series C, $700M, Jul 2026 | Companies House 15243605 | incorporated 2023-10-28 | 35 staff in filed accounts (period to 2025-12-31) | SIC 82990, 86210 | licensed visa sponsor | London office, HQ elsewhere | backed by Lightspeed Venture Partners, OG Venture Partners, Atomico, General Catalyst, Lakestar | near Shoreditch High Street (368 m) | https://www.nekohealth.com | sources: [funding](https://torstensson.com/2026/07/15/neko-health-raises-700-million-series-c/), [growth](https://torstensson.com/2025/01/23/neko-health-raises-260-million-at-1-8-billion-post-money-valuation/), [address](https://legal.nekohealth.com/documents/clinics/global/2026-06-clinics.en.pdf), [presence](https://legal.nekohealth.com/documents/clinics/global/2026-06-clinics.en.pdf) - **Numan** (`numan`): Online health clinic for weight loss, men's and women's health, with prescriptions and coaching. Health / Telehealth | Fastest growing | Camden EC1M 3JF | founded 2018 | last round $60M, 2025 | Companies House 11449267 | incorporated 2018-07-05 | SIC 58290, 86900 | London HQ | on Sifted 100 UK & Ireland 2026, #74; Tech Nation Future Fifty 2026 | backed by Big Pi Ventures, Endeavor Catalyst, HSBC Innovation Banking, Novator, White Star Capital | near Farringdon (71 m) | https://www.numan.com | sources: [funding](https://www.numan.com/numan-news/numan-secures-60m), [growth](https://www.numan.com/numan-news/numan-secures-60m), [address](https://www.numan.com/privacy), [presence](https://www.numan.com/about-us) - **Ori Biotech** (`ori-biotech`): Makes IRO, an automated closed-system platform for manufacturing cell and gene therapies from R&D through commercial production. Health / Cell therapy manufacturing | Up and coming | Islington N7 9AA | founded 2015 | last round Series B, $100M+, Jan 2022 | Companies House 09757696 | incorporated 2015-09-02 | SIC 71121, 71200, 72110, 72190 | licensed visa sponsor | London HQ | backed by Novalis LifeSciences, Amadeus Capital Partners, Chimera Abu Dhabi, Delin Ventures, Northpond Ventures, Octopus Ventures, Puhua Capital | near Caledonian Road & Barnsbury (563 m) | https://oribiotech.com | sources: [funding](https://www.life-sciences-europe.com/index-term/ori-biotech-chimera-abu-oribiotech-ltd-group-cell-2001-161445.html), [growth](https://www.pharmamanufacturing.com/automation-control/article/55405025/ori-biotech-biopharma-company-team-to-automate-cell-therapy-manufacturing), [address](https://oribiotech.com), [presence](https://oribiotech.com) - **Pangaea Data** (`pangaea-data`): Software that reviews patient records against clinical guidelines to find undiagnosed and under-treated patients. Health / Clinical AI | Up and coming | Lambeth SE1 7LY | founded 2018 | last round Strategic investment from Topcon Healthcare, undisclosed, May 2025 | Companies House 11157733 | incorporated 2018-01-18 | 16 staff in filed accounts (period to 2025-12-31) | SIC 62012, 72110 | licensed visa sponsor | London HQ | backed by Topcon Healthcare | near Waterloo (136 m) | https://www.pangaeadata.ai | sources: [funding](https://eyewire.news/news/pangaea-data-secures-investment-from-topcon-healthcare-to-scale-ai-platform), [growth](https://eyewire.news/news/pangaea-data-secures-investment-from-topcon-healthcare-to-scale-ai-platform), [address](https://www.pangaeadata.ai), [presence](https://www.pangaeadata.ai/about/) - **Patchwork Health** (`patchwork-health`): Workforce software for NHS trusts covering staff banks, rotas, agency management and job planning, built by NHS doctors. Health / Healthcare Workforce | Up and coming | Hackney EC2A 4LH | founded 2016 | last round Series B, £20M, Aug 2022 | Companies House 10359095 | incorporated 2016-09-05 | SIC 62020 | London HQ | on Tech Nation Future Fifty 2024 | backed by Perwyn, KHP Ventures, Praetura Ventures | near Old Street (422 m) | https://patchwork.health | sources: [funding](https://tech.eu/2022/08/10/patchwork-health-gets-ps20-million-dosage-to-improve-staffing-levels-at-nhs), [growth](https://startupsmagazine.co.uk/article-tech-nation-selects-uks-next-unicorns), [address](https://patchwork.health), [presence](https://patchwork.health) - **Peppy** (`peppy`): Employer-paid health app giving staff expert support for menopause, fertility, pregnancy, early parenthood and men's health. Health / Employee Health Benefits | Up and coming | Camden WC2B 6NH | founded 2018 | last round Series B, $45M, Jan 2023 | Companies House 11534232 | incorporated 2018-08-23 | 90 staff in filed accounts (group, period to 2025-12-31) | SIC 62012, 86220 | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2024, #5; Tech Nation Future Fifty 2024; LinkedIn Top Startups UK 2023, #1 | backed by AlbionVC, Felix Capital, Hambro Perks, Kathaka, MTech Capital, Outward VC, Seedcamp, Simplyhealth, Sony Innovation Fund | near Holborn (38 m) | https://peppy.health | sources: [funding](https://tech.eu/2023/01/11/having-conquered-europe-gender-based-healthcare-platform-peppy-eyes-us-market-with-45-million-raise), [growth](https://peppy.health), [address](https://peppy.health), [presence](https://builtinlondon.uk/company/peppy) - **Portal Biotech** (`portal-biotech`): Builds nanopore instruments that sequence full-length proteins one molecule at a time. Health / Protein sequencing | Fastest growing | Hammersmith and Fulham W12 7RZ | founded 2021 | last round Series A, $35M, Jun 2025 | Companies House 13304359 | incorporated 2021-03-30 | 11 staff in filed accounts (period to 2025-03-31) | SIC 72110 | licensed visa sponsor | London HQ | backed by Earlybird, NATO Innovation Fund, 8VC, Amino Collective, British Business Bank, Outsized, Pillar VC, SCVC, We Venture Capital, WS Investment Company | near White City (250 m) | https://www.portalbiotech.com | sources: [funding](https://www.nif.fund/news/nato-innovation-fund-leads-35-million-series-a-in-portal-biotech-alongside-earlybird-to-deliver-worlds-first-full-length-single-molecule-protein-sequencer), [growth](https://www.nif.fund/news/nato-innovation-fund-leads-35-million-series-a-in-portal-biotech-alongside-earlybird-to-deliver-worlds-first-full-length-single-molecule-protein-sequencer), [address](https://www.portalbiotech.com), [presence](https://jobs.nif.fund/companies/portal-biotech/jobs/71877682-development-scientist-biological-kits) - **Prokarium** (`prokarium`): Develops engineered bacterial immunotherapies for cancer, led by ZH9 for non-muscle invasive bladder cancer. Health / Microbial immunotherapy | Up and coming | Camden NW1 0NH | founded 2007 | last round Financing, $30M, Feb 2023 | Companies House 06300883 | incorporated 2007-07-03 | SIC 72190 | licensed visa sponsor | London HQ | near Mornington Crescent (409 m) | https://www.prokarium.com | sources: [funding](https://www.biospace.com/article/releases/prokarium-announces-30-million-financing-to-deliver-lead-program-into-clinic-and-build-novel-therapeutic-platform/), [growth](https://www.prokarium.com/), [address](https://www.prokarium.com/), [presence](https://www.prokarium.com/) - **Proximie** (`proximie`): Cloud platform that connects operating rooms so surgeons can collaborate remotely and hospitals can analyse surgical video and data. Health / Surgical software | Up and coming | Westminster W1G 0PW | founded 2016 | raised $130M | last round Series C, $80M, Jun 2022 | Companies House 10509541 | incorporated 2016-12-05 | SIC 82990 | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2024, #93 | backed by Advent Life Sciences, British Patient Capital, Eight Roads, Emerson Collective, F-Prime Capital, Global Ventures, Maverick Ventures, Minderoo Foundation, Mubadala, Questa Capital, SoftBank Vision Fund | near Oxford Circus (172 m) | https://www.proximie.com | sources: [funding](https://siliconcanals.com/proximie-raises-76-3m/), [growth](https://www.proximie.com/), [address](https://www.proximie.com/contact), [presence](https://www.proximie.com/contact) - **Purespring Therapeutics** (`purespring-therapeutics`): London gene therapy company targeting kidney podocytes to treat diseases such as IgA nephropathy. Health / Kidney Gene Therapy | Fastest growing | Islington N7 9AS | founded 2020 | raised £115M (~$146.1M) | last round Series B, £80M, Oct 2024 | Companies House 12543677 | incorporated 2020-04-01 | SIC 72110 | licensed visa sponsor | London HQ | backed by Sofinnova Partners, British Patient Capital, Forbion, Gilde Healthcare, Syncona | near Caledonian Road & Barnsbury (580 m) | https://purespringtx.com | sources: [funding](https://purespringtx.com/purespring-therapeutics-raises-80-105-million-in-a-series-b-financing-to-transform-the-treatment-of-kidney-diseases/), [growth](https://purespringtx.com/purespring-therapeutics-raises-80-105-million-in-a-series-b-financing-to-transform-the-treatment-of-kidney-diseases/), [address](https://purespringtx.com), [presence](https://www.fiercebiotech.com/biotech/purespring-bottles-105m-series-b-bring-kidney-disease-gene-therapy-clinic) - **Quell Therapeutics** (`quell-therapeutics`): Develops engineered CAR-Treg cell therapies for autoimmune disease and organ transplant rejection. Health / Cell Therapy | Up and coming | Hammersmith and Fulham W12 0BZ | founded 2019 | last round Series B, $156M, Nov 2021 | Companies House 11890040 | incorporated 2019-03-19 | SIC 72110 | licensed visa sponsor | London HQ | backed by Fidelity Management & Research, Jeito Capital, Ridgeback Capital Investments, SV Health Investors, British Patient Capital, Janus Henderson Investors, Monashee Investment Management, Point72, Syncona, Tekla Capital Management | near White City (424 m) | https://www.quell-tx.com | sources: [growth](https://quell-tx.com/news/quell-therapeutics-raises-156-million-in-oversubscribed-series-b-financing-to-advance-its-pioneering-multi-modular-engineered-t-regulatory-treg-cell-therapy-pipeline-and-platform), [address](https://www.quell-tx.com/contact), [presence](https://www.kcl.ac.uk/news/quell-therapeutics-ltd-founded) - **RQ Bio** (`rq-bio`): Biotech developing long-acting monoclonal antibodies to prevent seasonal flu and other respiratory viruses. Health / Antibody Therapeutics | Fastest growing | Hammersmith and Fulham W12 7RZ | founded 2021 | Companies House 13293828 | incorporated 2021-03-26 | SIC 72110 | licensed visa sponsor | London HQ | backed by Frazier Life Sciences, EQT Life Sciences, Forbion, LifeArc Ventures, Monograph Capital, Oxford Science Enterprises, Wellington Management | near White City (250 m) | sources: [growth](https://uk.finance.yahoo.com/news/rq-bio-announces-115-million-070000435.html), [address](https://find-and-update.company-information.service.gov.uk/company/13293828), [presence](https://find-and-update.company-information.service.gov.uk/company/13293828) - **Sava** (`sava`): Builds a minimally invasive wearable biosensor that tracks glucose, lactate and other biomarkers in real time. Health / Wearable Biosensors | Up and coming | Islington EC1M 6AA | founded 2016 | last round Series A, €16.3M, Jul 2025 | Companies House 10500092 | incorporated 2016-11-28 | 40 staff in filed accounts (period to 2025-03-30) | SIC 72110, 86900 | licensed visa sponsor | London HQ | backed by Athletico Ventures, Balderton Capital, Exceptional Ventures, Italian Founders Fund, JamJar Investments, Norrsken VC, Pentland Ventures, Solo Investments, True | near Barbican (185 m) | https://www.sava.health | sources: [growth](https://www.vestbee.com/insights/articles/top-european-funding-rounds-closed-in-july-2025), [address](https://www.sava.health), [presence](https://www.sava.health) - **Scan.com** (`scan-com`): Marketplace and booking infrastructure connecting patients, payers and providers with imaging centres in the UK and US. Health / Medical Imaging | Fastest growing | Westminster WC2R 3DA | founded 2017 | last round Series C, $90M equity plus $130M debt, Sep 2026 | Companies House 10674268 | incorporated 2017-03-16 | SIC 86220 | London HQ | Founders Factory | on Sifted 100 UK & Ireland 2026, #14; Deloitte UK Technology Fast 50 2025, #11; Tech Nation Future Fifty 2024; Deloitte UK Technology Fast 50 2024, #11 | backed by Noteus Partners, Aviva, Concord Health Partners, Oxford Capital, YZR Capital | near Temple (121 m) | https://scan.com | sources: [funding](https://pulse2.com/scan-com-raises-220-million-in-equity-and-debt-financing-as-revenue-run-rate-tops-165-million/), [growth](https://pulse2.com/scan-com-raises-220-million-in-equity-and-debt-financing-as-revenue-run-rate-tops-165-million/), [address](https://cqc.org.uk/provider/1-13871973885/contact), [presence](https://builtinlondon.uk/company/scancom) - **Scarlet** (`scarlet`): Notified body that certifies software and AI medical devices for the EU and UK markets. Health / AI Medical Device Certification | Up and coming | City of London EC4A 1JP | founded 2020 | raised $17.5M | last round Series A, $17.5M, Jun 2024 | Companies House 13104396 | incorporated 2020-12-30 | 15 staff in filed accounts (period to 2025-12-31) | SIC 62012, 64209 | licensed visa sponsor | London HQ | backed by Atomico, Creandum, Entrepreneur First, Kindred Capital | near Chancery Lane (298 m) | https://www.scarlet.cc | sources: [funding](https://www.vcbacked.co/company/scarlet), [growth](https://www.vcbacked.co/company/scarlet), [address](https://find-and-update.company-information.service.gov.uk/company/13104396), [presence](https://www.scarlet.cc/careers) - **Second Nature** (`second-nature`): Weight-loss programme combining medication, nutrition and behaviour change coaching, available privately and free through NHS referral. Health / Digital health | Up and coming | Hammersmith and Fulham W12 7RZ | founded 2015 | last round Funding round led by Beringea, $10M, Feb 2020 | Companies House 08511152 | incorporated 2013-04-30 | 120 staff in filed accounts (period to 2025-12-31) | SIC 62012 | hiring 5 in London | licensed visa sponsor | work model mixed (5 London job posts) | London HQ | backed by Beringea, Bethnal Green Ventures, Connect Ventures, Speedinvest, Uniqa Ventures | near White City (250 m) | https://www.secondnature.io | sources: [funding](https://tech.eu/2020/02/19/second-nature-10-million/), [growth](https://www.secondnature.io/), [address](https://app.welcometothejungle.com/jobs/CZXLguQo/company), [presence](https://app.welcometothejungle.com/jobs/CZXLguQo/company) - **Semble** (`semble`): Practice management and electronic health record platform for private outpatient healthcare providers. Health / Practice Management Software | Fastest growing | City of London EC3M 1DT | founded 2015 | last round Series C, £30M, Jun 2026 | Companies House 09891593 | incorporated 2015-11-27 | SIC 62012 | London HQ | backed by Revaia, Mercia Ventures, Octopus Ventures, Partech | near Monument (183 m) | https://www.semble.io | sources: [growth](https://partechpartners.com/news/semble-secures-30m-series-c-investment-to-expand-europes-connected-healthcare-platform), [address](https://app.welcometothejungle.com/jobs/q2APPVKE/company), [presence](https://www.semble.io) - **SheMed** (`shemed`): Women's health platform offering clinician-led GLP-1 weight management plans, blood tests and app-based support. Health / Women's Telehealth | Well known | Camden NW1 3HP | founded 2024 | last round $50M, Oct 2025 | Companies House 16109597 | incorporated 2024-11-29 | SIC 86900 | hiring 3 in London | licensed visa sponsor | London HQ | near Warren Street (220 m) | https://shemed.co.uk | sources: [growth](https://tools.prnewswire.com/en-us/live/20823/release/20251023EN05002), [address](https://find-and-update.company-information.service.gov.uk/company/16109597), [presence](https://www.linkedin.com/company/shemed) - **Silence Therapeutics** (`silence-therapeutics`): Develops siRNA medicines that silence disease-causing genes, with programmes in polycythemia vera and high Lp(a). Health / siRNA therapeutics | Fastest growing | Hammersmith and Fulham W6 7AP | founded 1994 | last round Public offering, $201M, Aug 2026 | Companies House 02992058 | incorporated 1994-11-18 | SIC 72110 | London HQ | near Hammersmith (256 m) | https://www.silence-therapeutics.com | sources: [funding](https://www.goodwinlaw.com/en/news-and-events/news/2026/08/announcements-lifesciences-cm-goodwin-advises-underwriters-silence-public-offering), [growth](https://www.goodwinlaw.com/en/news-and-events/news/2026/08/announcements-lifesciences-cm-goodwin-advises-underwriters-silence-public-offering), [address](https://www.silence-therapeutics.com/contact), [presence](https://www.silence-therapeutics.com/about-us) - **Skin + Me** (`skin-me`): Online dermatology service that prescribes personalised skincare treatments for acne and ageing, delivered by monthly subscription. Health / Online Dermatology | Up and coming | Westminster W2 6LG | raised £18M (~$22.9M) | last round Series B, £10M, Feb 2023 | Companies House 12535808 | incorporated 2020-03-26 | 48 staff in filed accounts (period to 2025-08-31) | SIC 86220 | London HQ | on LinkedIn Top Startups UK 2024, #8 | backed by Octopus Ventures | near Paddington (153 m) | https://skinandme.com | sources: [funding](https://www.febe.com/2025_g100/skin-me/), [growth](https://www.febe.com/2025_g100/skin-me/), [address](https://find-and-update.company-information.service.gov.uk/company/12535808), [presence](https://builtinlondon.uk/company/skin-me) - **Sweatcoin** (`sweatcoin`): Fitness app that turns daily steps into a digital currency users can spend on rewards. Health / Move-to-Earn Rewards | Well known | Southwark SE1 1DN | founded 2015 | Companies House 09242159 | incorporated 2014-09-30 | 29 staff in filed accounts (period to 2025-12-31) | SIC 62011, 72200 | hiring 2 in London | licensed visa sponsor | work model remote (2 London job posts) | London HQ | backed by Goodwater Capital, Greylock, Rubylight, Seedcamp, SmartHub | near Borough (474 m) | https://sweatco.in | sources: [growth](https://sweatco.in/), [address](https://www.linkedin.com/company/sweatcoin), [presence](https://sweatcoin.teamtailor.com/jobs/7745129-commercial-partnerships-sales) - **Tangram Therapeutics** (`tangram-therapeutics`): Tangram Therapeutics combines computational drug discovery with biology to develop RNAi medicines, led by TGM-312 for MASH liver disease. Health / RNAi therapeutics | Up and coming | Westminster W2 6BD | last round Subscription by M&G and Richard Griffiths, £28.9M, Jul 2024 | Companies House 04304473 | incorporated 2001-10-15 | SIC 72190 | licensed visa sponsor | London HQ | near Paddington (451 m) | https://www.tangramtx.com | sources: [funding](https://webdisclosure.com/press-release/jp-jenkins-ltd-etr-e-therapeutics-announces-completion-of-2890-million-fundraise-HcL0MqnTbjj), [growth](https://www.tangramtx.com), [address](https://www.tangramtx.com), [presence](https://www.tangramtx.com) - **TERN Group** (`tern-group`): AI platform that sources, trains and relocates international nurses and doctors for hospitals in the UK, Europe and Gulf. Health / Healthcare Recruitment | Fastest growing | Westminster W1W 7LT | founded 2023 | raised $33M | last round Series A, $24M, Sep 2025 | Companies House 15073307 | incorporated 2023-08-15 | 11 staff in filed accounts (period to 2025-03-31) | SIC 62090, 70100, 78300 | licensed visa sponsor | London HQ | on Tech Nation Upscale 2026 | backed by Notion Capital, EQ2 Ventures, Leo Capital, LocalGlobe, Presight Capital, RTP Global | near Oxford Circus (362 m) | https://tern-group.com | sources: [funding](https://tech.eu/2025/09/10/tern-group-raises-24m-series-a-to-fix-healthcares-workforce-crisis/), [growth](https://tech.eu/2025/09/10/tern-group-raises-24m-series-a-to-fix-healthcares-workforce-crisis/), [address](https://find-and-update.company-information.service.gov.uk/company/15073307), [presence](https://find-and-update.company-information.service.gov.uk/company/15073307) - **Thriva** (`thriva`): At-home blood testing service covering 75+ health markers, with doctor-led insights on results and a dashboard that combines biomarkers with wearable data. Health / Home blood testing | Up and coming | Islington EC1Y 8AF | founded 2016 | Companies House 09828160 | incorporated 2015-10-16 | SIC 62090 | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2024, #100 | backed by Guinness Asset Management, Pembroke VCT, Target Global | near Old Street (103 m) | https://thriva.co | sources: [growth](https://thriva.co/), [address](https://find-and-update.company-information.service.gov.uk/company/09828160), [presence](https://siliconcanals.com/amid-pandemic-london-based-thriva-secures-e4-5m-funding-to-offer-at-home-health-service/) - **Toothfairy** (`toothfairy`): Toothfairy is a dental app that connects patients with UK-registered dentists for remote consultations, aligners and treatment plans. Health / Digital dentistry | Up and coming | Westminster W1G 9AP | founded 2017 | last round Funding round, $10M, Sep 2025 | Companies House 11118805 | incorporated 2017-12-20 | 13 staff in filed accounts (period to 2025-12-31) | SIC 86900 | London HQ | on Sifted 100 UK & Ireland 2024, #92 | backed by LBO France, Ada Ventures, CRB Health Tech, Haatch, Portfolio Ventures, Slingshot Ventures | near Oxford Circus (430 m) | https://www.toothfairyapp.co.uk/ | sources: [funding](https://siliconcanals.com/toothfairy-raises-e8-4m/), [growth](https://siliconcanals.com/toothfairy-raises-e8-4m/), [address](https://www.toothfairyapp.co.uk/privacy-policy), [presence](https://www.cqc.org.uk/location/1-20629202890) - **TORTUS** (`tortus`): Clinician-founded AI assistant that listens to consultations and writes clinical notes, deployed across NHS trusts and GP surgeries. Health (also AI) / Clinical AI Scribe | Up and coming | Camden WC1V 7BD | founded 2022 | raised $4.4M | last round Seed, $4.4M, Mar 2023 | Companies House 14487060 | incorporated 2022-11-15 | 19 staff in filed accounts (period to 2025-11-30) | SIC 62020, 86900 | London HQ | on Tech Nation Upscale 2025 | backed by Khosla Ventures, Entrepreneur First | near Holborn (154 m) | https://tortus.ai | sources: [funding](https://tortus.ai/about), [growth](https://tortus.ai/about), [address](https://jobs.khoslaventures.com/companies/tortus-ai-2/jobs/78321503-full-stack-engineer-ai), [presence](https://tortus.ai/about) - **Touchlight** (`touchlight`): Makes cell-free synthetic DNA (dbDNA) at scale for gene therapies and genetic medicines. Health / Synthetic DNA | Well known | Richmond upon Thames TW12 2ER | founded 2007 | Companies House 06422158 | incorporated 2007-11-08 | 136 staff in filed accounts (period to 2024-12-31) | SIC 72190 | licensed visa sponsor | London HQ | backed by Bridford Investments, Novator Partners | near Hounslow Central (6501 m) | https://www.touchlight.com | sources: [growth](https://businesscloud.co.uk/news/uk-creates-14-unicorns-in-2026-as-ai-fuels-boom/), [address](https://www.touchlight.com/contact), [presence](https://www.pharmaceutical-technology.com/projects/touchlight-dna-manufacturing-facility/) - **Unmind** (`unmind`): Workplace mental health platform offering therapy, coaching and an AI companion called Nova to employees. Health / Workplace Mental Health | Fastest growing | Southwark SE1 9PA | founded 2016 | raised $82M | Companies House 10310694 | incorporated 2016-08-03 | SIC 62012 | hiring 1 in London | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2024, #88; Tech Nation Future Fifty 2024 | backed by TELUS Global Ventures, Felix Capital, Project A Ventures, Sapphire Ventures | near London Bridge (379 m) | https://unmind.com | sources: [funding](https://bhbusiness.com/2025/07/31/unmind-lands-35m-in-round-led-by-telus-global-ventures/), [growth](https://bhbusiness.com/2025/07/31/unmind-lands-35m-in-round-led-by-telus-global-ventures/), [address](https://unmind.com/privacy-policy), [presence](https://builtinlondon.uk/company/unmind) - **Verdiva Bio** (`verdiva-bio`): Clinical-stage biotech developing next-generation oral and injectable medicines for obesity and cardiometabolic disease. Health / Obesity Therapeutics | Fastest growing | Westminster W1B 2AF | founded 2024 | raised $411M | last round Series A, $411M, Jan 2025 | Companies House 15863501 | incorporated 2024-07-29 | SIC 72110 | licensed visa sponsor | London HQ | backed by Forbion, General Atlantic, Lilly Asia Ventures, Logos Capital, OrbiMed | near Oxford Circus (58 m) | https://www.verdivabio.com | sources: [funding](https://www.biospace.com/business/verdiva-jumps-into-hot-obesity-market-with-410m-debut-eyes-next-gen-therapies), [growth](https://www.biospace.com/business/verdiva-jumps-into-hot-obesity-market-with-410m-debut-eyes-next-gen-therapies), [address](https://www.verdivabio.com/privacy), [presence](https://www.linkedin.com/company/verdivabio) - **Vision RT** (`vision-rt`): Surface guided radiation therapy systems that use 3D cameras to position and monitor patients during radiotherapy. Health / Radiotherapy | Up and coming | Barnet N3 2JU | founded 2001 | last round Majority stake (about 85%) acquired by William Demant Invest, May 2018 | Companies House 04234153 | incorporated 2001-06-13 | SIC 86900 | licensed visa sponsor | London HQ | near Finchley Central (192 m) | https://www.visionrt.com | sources: [funding](https://visionrt.com/news/william-demant-invest-acquires-majority-shareholding-in-vision-rt-alongside-the-companys-founders/), [growth](https://visionrt.com/news/fastest-growing-tech-companies/), [address](https://visionrt.com/contact-us/), [presence](https://visionrt.com/contact-us/) - **Voy** (`voy`): Online clinic providing prescribed treatment and clinical support for weight loss, menopause, hair loss and testosterone therapy. Health / Digital health | Up and coming | Southwark SE1 9HZ | raised $73.7M | last round Early VC, $38.7M, Sep 2024 | Companies House 11476975 | incorporated 2018-07-23 | SIC 47910, 72190, 86900 | hiring 35 in London | licensed visa sponsor | London HQ | backed by Cherry Ventures, Felix Capital, Sonoma Brands, Waldencast | near Mansion House (628 m) | https://joinvoy.com | sources: [funding](https://app.welcometothejungle.com/jobs/HOUVBVMh/company), [growth](https://app.welcometothejungle.com/jobs/HOUVBVMh/company), [address](https://joinvoy.com/pages/terms), [presence](https://app.welcometothejungle.com/jobs/HOUVBVMh/company) - **ZOE** (`zoe`): Gut health and nutrition company running large-scale studies and selling at-home tests and food products. Health / Personalised Nutrition | Well known | Southwark SE1 8ND | founded 2017 | raised $118M | last round Series B extension, $15M, Jul 2024 | Companies House 10902884 | incorporated 2017-08-07 | SIC 86900 | hiring 4 in London | work model mixed (4 London job posts) | London HQ | on Deloitte UK Technology Fast 50 2024, #2 | backed by Coefficient Capital | near Southwark (235 m) | https://zoe.com | sources: [funding](https://techcrunch.com/2024/07/30/nutrition-microbiome-zoe/), [growth](https://www.linkedin.com/company/joinzoe), [address](https://www.linkedin.com/company/joinzoe), [presence](https://builtinlondon.uk/company/zoe) ### Climate (74) - **Abatable** (`abatable`): Procurement, advisory and market intelligence platform for companies buying carbon credits and other environmental assets. Climate / Carbon Markets | Up and coming | Hackney EC2A 2BN | founded 2021 | last round $13.5M, Apr 2023 | Companies House 13366032 | incorporated 2021-04-29 | 32 staff in filed accounts (period to 2024-12-31) | SIC 62090 | licensed visa sponsor | London HQ | Y Combinator S21 | backed by Azora Capital | near Liverpool Street (406 m) | https://www.abatable.com | sources: [funding](https://abatable.com/blog/announcing-our-latest-capital-raise-and-ecosphere-plus-acquisition), [growth](https://abatable.com/blog/announcing-our-latest-capital-raise-and-ecosphere-plus-acquisition), [address](https://www.abatable.com/privacy-policy), [presence](https://www.abatable.com) - **About:Energy** (`about-energy`): About:Energy sells battery modelling and simulation software plus a battery cell data library (The Voltt) used to design and test battery packs virtually. Climate / Battery modelling | Up and coming | Southwark SE1 0UR | founded 2021 | last round Seed, £1.5M, Jun 2023 | Companies House 13583725 | incorporated 2021-08-24 | 17 staff in filed accounts (period to 2025-12-31) | SIC 72190 | licensed visa sponsor | London HQ | backed by Electric Revolution Ventures, HighSage Ventures, Plug and Play Ventures, Vireo Ventures | near Southwark (229 m) | https://www.aboutenergy.io | sources: [funding](https://birmingham.ac.uk/news/2023/battery-spinout-aboutenergy-secures-1.5m-seed-investment), [growth](https://birmingham.ac.uk/news/2023/battery-spinout-aboutenergy-secures-1.5m-seed-investment), [address](https://www.aboutenergy.io/about), [presence](https://www.aboutenergy.io/about) - **Altruistiq** (`altruistiq`): Climate data platform for food and beverage firms, covering corporate and product carbon footprints and supplier decarbonisation. Climate / Carbon Accounting | Up and coming | City of London EC2Y 5EB | founded 2021 | Companies House 13115702 | incorporated 2021-01-06 | 51 staff in filed accounts (period to 2025-12-31) | SIC 62012, 62020, 63110, 74901 | licensed visa sponsor | London HQ | backed by Molten Ventures, Norrsken VC | near St. Paul's (282 m) | https://www.altruistiq.com | sources: [growth](https://www.altruistiq.com), [address](https://find-and-update.company-information.service.gov.uk/company/13115702), [presence](https://find-and-update.company-information.service.gov.uk/company/13115702) - **Arenko** (`arenko`): Arenko's Nimbus software controls and trades grid-scale battery storage assets in energy markets. Climate / Battery trading software | Up and coming | City of London EC4Y 8DP | raised £25M (~$31.8M) | last round Growth round, £9M, May 2025 | Companies House 08831289 | incorporated 2014-01-03 | SIC 62090 | licensed visa sponsor | London HQ | backed by HICO Investment Group | near Blackfriars (451 m) | https://arenko.group | sources: [funding](https://arenko.group/arenko-closes-9m-round-led-by-hico-investment-group-to-accelerate-a-zero-carbon-grid/), [growth](https://arenko.group/arenko-closes-9m-round-led-by-hico-investment-group-to-accelerate-a-zero-carbon-grid/), [address](https://arenko.group), [presence](https://arenko.group) - **Axle Energy** (`axle-energy`): Software that connects EV chargers, batteries and heat pumps to energy markets so they earn money supporting the grid. Climate / Energy flexibility software | Fastest growing | Islington EC1V 2NX | founded 2023 | last round Series A, $25M led by Energize Capital, Jul 2026 | Companies House 14633671 | incorporated 2023-02-02 | 10 staff in filed accounts (period to 2025-02-28) | SIC 62012 | licensed visa sponsor | London HQ | on Tech Nation Upscale 2026 | backed by Energize Capital, Accel, Eka Ventures, Picus Capital | near Old Street (146 m) | https://www.axle.energy | sources: [funding](https://www.axle.energy/blog/announcing-our-series-a), [growth](https://www.axle.energy/blog/announcing-our-series-a), [address](https://www.axle.energy/legal/privacy-policy), [presence](https://www.axle.energy/legal/privacy-policy) - **Believ** (`believ`): UK public EV charging network operator funding and running charge points for councils, businesses and drivers. Climate / EV Charging | Fastest growing | Southwark SE1 8QH | founded 2019 | Companies House 12231122 | incorporated 2019-09-27 | SIC 70100 | London HQ | backed by Liberty Global, Zouk Capital | near Southwark (293 m) | https://believ.com | sources: [growth](https://www.believ.com/press-releases/believ-marks-three-years-of-growth-with-major-milestones-in-uk-ev-charging-rollout/), [address](https://believ.com/contact), [presence](https://evfleetworld.co.uk/?p=57961) - **Beryl** (`beryl`): Beryl designs its own bikes, e-bikes and e-scooters and runs shared hire schemes for UK towns and cities. Climate / Micromobility | Up and coming | Hackney EC2A 4PS | founded 2011 | Companies House 07831245 | incorporated 2011-11-01 | SIC 32300 | licensed visa sponsor | London HQ | backed by Index Ventures, Pembroke VCT | near Shoreditch High Street (462 m) | https://beryl.cc | sources: [growth](https://micromobility.io/news/beryls-2024-revenue-up-11-to-ps12-6m), [address](https://beryl.cc/terms), [presence](https://beryl.cc/terms) - **Better Dairy** (`better-dairy`): Uses precision fermentation to make milk proteins without cows for uses such as infant formula and supplements. Climate / Precision fermentation | Up and coming | Tower Hamlets E9 5SZ | founded 2020 | last round Series A, $22M, Feb 2022 | Companies House 12393734 | incorporated 2020-01-09 | 25 staff in filed accounts (period to 2025-12-31) | SIC 72110 | licensed visa sponsor | London HQ | backed by Redalpine, Happiness Capital, Manta Ray Ventures, Stray Dog Capital, Vorwerk Ventures | near Hackney Wick (125 m) | https://betterdairy.com | sources: [funding](https://redalpine.com/post/redalpine-leads-usd-22-million-series-a-in-animal-free-dairy-company-better-dairy), [growth](https://redalpine.com/post/redalpine-leads-usd-22-million-series-a-in-animal-free-dairy-company-better-dairy), [address](https://find-and-update.company-information.service.gov.uk/company/12393734), [presence](https://find-and-update.company-information.service.gov.uk/company/12393734) - **BeZero Carbon** (`bezero-carbon`): Independent ratings agency that scores the quality and risk of carbon credits for buyers and investors. Climate / Carbon Ratings | Fastest growing | Hackney EC2A 2BS | founded 2020 | raised £76.7M (~$97.4M) | Companies House 12577887 | incorporated 2020-04-29 | SIC 74901 | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2026, #75; Tech Nation Future Fifty 2025; LinkedIn Top Startups UK 2023, #11 | backed by GenZero, EDF Pulse Ventures, Hitachi Ventures, Illuminate Financial, Intercontinental Exchange, Japan Airlines and Translink Innovation Fund, Molten Ventures, Qima, Quantum Innovation Fund | near Liverpool Street (393 m) | https://bezerocarbon.com | sources: [funding](https://www.datocms-assets.com/60124/1774006698-sifted-100-uk-ireland-2026.pdf), [growth](https://bezerocarbon.com/insights/bezero-carbon-raises-us-32-million-series-c), [address](https://bezerocarbon.com), [presence](https://bezerocarbon.com) - **Breathe Battery Technologies** (`breathe-battery-technologies`): Physics-based software that makes batteries in EVs and devices charge faster and last longer. Climate / Battery Software | Fastest growing | Lambeth SW9 6DE | founded 2019 | last round Series B, $21M, May 2025 | Companies House 11997339 | incorporated 2019-05-15 | 62 staff in filed accounts (period to 2025-12-31) | SIC 72190 | hiring 2 in London | licensed visa sponsor | London HQ | backed by Kinnevik, Lowercarbon Capital, Volvo Cars Tech Fund | near Oval (222 m) | https://www.breathebatteries.com | sources: [funding](https://www.renewableenergymagazine.com/storage/breathe-raises-21-million-in-series-b-20250512), [growth](https://www.renewableenergymagazine.com/storage/breathe-raises-21-million-in-series-b-20250512), [address](https://www.breathebatteries.com), [presence](https://battery-tech.net/company/breathe-battery-technologies/) - **Carbon Clean** (`carbon-clean`): Makes compact modular carbon capture units for heavy industry such as cement, steel and energy. Climate / Carbon Capture | Fastest growing | Southwark SE1 9HZ | last round Series C, $150M, May 2022 | Companies House 08116812 | incorporated 2012-06-25 | SIC 20110 | licensed visa sponsor | London HQ | on Deloitte UK Technology Fast 50 2024, #24 | backed by Chevron, AXA Investment Managers, Samsung Ventures, Saudi Aramco Energy Ventures | near Mansion House (628 m) | https://www.carbonclean.com | sources: [funding](https://www.cityam.com/?p=1874085), [growth](https://www.carbonclean.com/media), [address](https://www.carbonclean.com/contact), [presence](https://www.carbonclean.com/news/new-london-hq) - **CarbonChain** (`carbonchain`): Carbon accounting platform that tracks emissions in commodity and heavy industry supply chains for traders, manufacturers and banks. Climate / Carbon Accounting | Up and coming | Camden NW1 8AB | founded 2019 | last round Series A, $10M, Apr 2023 | Companies House 10956809 | incorporated 2017-09-11 | SIC 09900, 62020 | hiring 2 in London | licensed visa sponsor | London HQ | Y Combinator S20 | backed by Aera VC, Union Square Ventures, Voyager Ventures, Y Combinator | near Camden Town (324 m) | https://www.carbonchain.com | sources: [funding](https://www.carbonchain.com/about), [growth](https://www.carbonchain.com/about), [address](https://www.carbonchain.com/contact), [presence](https://www.carbonchain.com/about) - **Certain Energy** (`certain-energy`): Develops hydrogen-manganese flow batteries for long-duration grid energy storage. Climate / Energy storage | Up and coming | Hammersmith and Fulham W12 0BZ | founded 2017 | last round Series A, £10M, Aug 2026 | Companies House 10838031 | incorporated 2017-06-27 | 9 staff in filed accounts (period to 2025-06-30) | SIC 72190 | London HQ | backed by British Business Bank, Centrica, Ceres Power, Temasek Trust | near White City (424 m) | https://www.certainenergy.com | sources: [funding](https://www.imperial.ac.uk/news/articles/admin-services/enterprise/2026/imperial-energy-storage-spinout-certain-energy-raises-10m-from-investors/), [growth](https://www.imperial.ac.uk/news/articles/admin-services/enterprise/2026/imperial-energy-storage-spinout-certain-energy-raises-10m-from-investors/), [address](https://find-and-update.company-information.service.gov.uk/company/10838031), [presence](https://www.imperial.ac.uk/news/articles/admin-services/enterprise/2026/imperial-energy-storage-spinout-certain-energy-raises-10m-from-investors/) - **char.gy** (`char-gy`): Installs and runs on-street EV chargers for residents without driveways across UK councils. Climate / EV Charging | Up and coming | City of London EC4R 9AD | founded 2016 | Companies House 10222179 | incorporated 2016-06-09 | 100 staff in filed accounts (period to 2026-03-31) | SIC 35140, 42220, 62012 | London HQ | backed by Zouk Capital | near Monument (10 m) | https://char.gy | sources: [funding](https://char.gy/chargy-secures-100m-private-funding), [growth](https://char.gy/about), [address](https://char.gy/about), [presence](https://siliconcanals.com/char-gy-secures-118-2m/) - **Circulor** (`circulor`): Digital product passport and traceability platform that tracks critical battery materials such as cobalt and lithium through supply chains. Climate / Supply chain traceability | Up and coming | Hammersmith and Fulham W6 0LE | founded 2017 | last round Series B, $25M, 2022 | Companies House 11067668 | incorporated 2017-11-16 | 27 staff in filed accounts (period to 2025-03-31) | SIC 62012 | licensed visa sponsor | London HQ | backed by Westly Group, 24Haymarket, BHP Ventures, Future Positive Capital, HG Ventures, InMotion Ventures, Salesforce Ventures, Systemiq Capital, Volvo Cars Tech Fund | near Ravenscourt Park (408 m) | https://www.circulor.com | sources: [funding](https://www.thesaasnews.com/news/circulor-raises-25-million-in-series-b/), [growth](https://circulor.com/), [address](https://circulor.com/legal/privacy-and-cookie-policy), [presence](https://www.inmotionventures.com/portfolio/circulor/) - **Climate X** (`climate-x`): Climate risk data and analytics that show banks and asset managers how physical climate hazards affect asset values. Climate (also Fintech) / Climate Risk Analytics | Up and coming | Southwark SE1 1LB | founded 2020 | last round Series A, $18M, Jun 2024 | Companies House 13107608 | incorporated 2020-12-31 | 76 staff in filed accounts (period to 2025-12-31) | SIC 62012 | licensed visa sponsor | London HQ | on LinkedIn Top Startups UK 2025, #20 | backed by GV, Blue Wire Capital, CommerzVentures, noa VC, Pale Blue Dot, PT1, Unconventional Ventures | near Borough (163 m) | https://www.climate-x.com | sources: [funding](https://www.esgtoday.com/?p=16570), [growth](https://www.esgtoday.com/?p=16570), [address](https://www.climate-x.com/contact), [presence](https://builtinlondon.uk/company/climate-x) - **Connected Kerb** (`connected-kerb`): Builds on-street and residential EV charging infrastructure for UK councils and businesses. Climate / EV Charging | Fastest growing | Southwark SE1 9PG | founded 2017 | last round Equity, £65M, Jan 2025 | Companies House 11062616 | incorporated 2017-11-14 | SIC 43210 | hiring 3 in London | licensed visa sponsor | work model mixed (3 London job posts) | London HQ | backed by Aviva Investors, National Wealth Fund | near Blackfriars (334 m) | https://www.connectedkerb.com | sources: [funding](https://www.connectedkerb.com/stories-reports-and-events/connected-kerb-secures-65m-backing-from-the-national-wealth-fund-and-aviva-investors-to-accelerate-its-uks-ev-public-charging-network-expansion/), [growth](https://www.connectedkerb.com/stories-reports-and-events/connected-kerb-secures-65m-backing-from-the-national-wealth-fund-and-aviva-investors-to-accelerate-its-uks-ev-public-charging-network-expansion/), [address](https://www.connectedkerb.com/contact), [presence](https://aeroleads.com/c/connected-kerb) - **Converge** (`converge`): Uses AI, wireless sensors and data to optimise concrete mixes and cut cement emissions in construction. Climate / Concrete Decarbonisation | Fastest growing | City of London EC4V 3DB | founded 2014 | last round €20M, May 2025 | Companies House 09329199 | incorporated 2014-11-26 | 39 staff in filed accounts (period to 2024-12-31) | SIC 62012 | hiring 1 in London | licensed visa sponsor | London HQ | on Tech Nation Future Fifty 2025 | backed by ABN AMRO Sustainable Impact Fund, Climate Investment, J-Impact, Move Energy, PI Impact | near Blackfriars (262 m) | https://www.converge.io | sources: [funding](https://tech.eu/2025/05/21/converge-raises-eur20m-to-decarbonise-concrete/), [growth](https://tech.eu/2025/05/21/converge-raises-eur20m-to-decarbonise-concrete/), [address](https://www.converge.io/contact), [presence](https://builtinlondon.uk/company/converge-1) - **CUR8** (`cur8`): Carbon removal platform that builds removal portfolios for companies and finances carbon removal projects. Climate / Carbon Removal | Up and coming | Hackney EC2A 3HZ | founded 2021 | last round Seed, undisclosed, Sep 2025 | Companies House 13331991 | incorporated 2021-04-13 | 17 staff in filed accounts (period to 2025-04-30) | SIC 62012 | hiring 2 in London | licensed visa sponsor | work model hybrid (2 London job posts) | London HQ | backed by Airbus Ventures, Capital T, GV | near Old Street (342 m) | https://cur8.earth | sources: [funding](https://www.cityam.com/googles-vc-arm-backs-london-climate-start-up/), [growth](https://decarbonfuse.com/posts/cur8-raises-seed-round-led-by-airbus-ventures), [address](https://cur8.earth/legal/privacy-policy), [presence](https://www.cityam.com/googles-vc-arm-backs-london-climate-start-up/) - **Deep Green** (`deep-green`): Builds and runs AI and HPC colocation data centres that capture waste heat and supply it to pools, district heating and other heat users. Climate (also AI) / Heat-reuse data centres | Up and coming | Camden EC1N 2SW | raised £200M (~$254M) | last round Octopus Energy Transition Fund investment, £200M, Jan 2024 | Companies House 13601125 | incorporated 2021-09-03 | 12 staff in filed accounts (period to 2025-09-30) | SIC 62090 | London HQ | backed by Octopus Energy Generation | near Chancery Lane (97 m) | https://deepgreen.energy | sources: [funding](https://octopus.energy/press/deep-green-investment/), [growth](https://deepgreen.energy/), [address](https://deepgreen.energy/contact-us), [presence](https://octopus.energy/press/deep-green-investment/) - **Electron** (`electron`): Software platform that helps electricity utilities find, value and procure flexibility from distributed energy resources through local flexibility markets. Climate / Grid flexibility | Up and coming | Hackney EC2A 4NE | founded 2015 | last round £4M, Sep 2023 | Companies House 09914060 | incorporated 2015-12-14 | 38 staff in filed accounts (period to 2025-12-31) | SIC 62090 | licensed visa sponsor | London HQ | on Tech Nation Future Fifty 2025 | backed by East Innovate, Nesta, One Planet Capital, Riverstone | near Old Street (321 m) | https://electron.net | sources: [funding](https://tech.eu/2023/09/19/electron-secures-4m-with-its-approach-to-electricity-flexibility-and-distribution/), [growth](https://theenergyst.com/electron-to-acquire-rhythmos-io/), [address](https://electron.net/electron-privacy-policy/), [presence](https://electron.net/careers/) - **Entocycle** (`entocycle`): Entocycle builds automated insect farming technology that turns food waste into insect protein for animal feed. Climate / Insect farming | Up and coming | Southwark SE1 2ES | founded 2014 | last round $2.6M, Aug 2024 | Companies House 09203334 | incorporated 2014-09-04 | 21 staff in filed accounts (period to 2025-12-31) | SIC 38210 | licensed visa sponsor | London HQ | Y Combinator S17 | backed by Climentum Capital, Ace & Company, Armajaro Holdings, Blue Ledge Capital, Lowercarbon Capital, Startup Basecamp, Teampact Ventures, TVC | near London Bridge (470 m) | https://www.entocycle.com | sources: [funding](https://agfundernews.com/breaking-entocycle-lands-5m-series-a-from-climentum-lowercarbon-capital-to-roll-out-precision-ag-tech-for-insect-farms), [growth](https://8point9.com/entocycle-raises-further-2-6m-for-yorkshire-insect-rearing-facility/), [address](https://find-and-update.company-information.service.gov.uk/company/09203334), [presence](https://www.thepoultrysite.com/news/2024/02/london-insect-farm-hatches-plan-for-greener-way-to-feed-animals) - **Epoch Biodesign** (`epoch-biodesign`): Uses AI-designed enzymes to break down plastic and textile waste into recycled nylon polymers. Climate / Enzymatic Recycling | Up and coming | Islington EC2A 1AJ | founded 2019 | raised $34M | last round Series A, $18.3M, Mar 2025 | Companies House 11824812 | incorporated 2019-02-13 | 27 staff in filed accounts (period to 2025-03-31) | SIC 72110 | licensed visa sponsor | London HQ | backed by Extantia, Day One Ventures, Happiness Capital, Inditex, Kibo Invest, Lowercarbon Capital | near Moorgate (332 m) | https://www.epochbiodesign.com | sources: [funding](https://techcrunch.com/2025/03/05/from-high-school-science-project-to-18-3m-ai-accelerated-enzymes-are-coming-for-fast-fashions-plastic-waste/), [growth](https://www.epochbiodesign.com), [address](https://www.epochbiodesign.com), [presence](https://www.webpronews.com/the-enzyme-factory-how-a-london-startup-plans-to-eat-the-worlds-nylon-waste/) - **ev.energy** (`ev-energy`): Software that orchestrates home EV charging, solar and batteries so utilities can run flexibility programmes. Climate / EV smart charging | Up and coming | Hackney EC2A 4NA | founded 2018 | raised $41M | last round Series B, $33M, Aug 2023 | Companies House 11468310 | incorporated 2018-07-17 | SIC 35140, 62012 | licensed visa sponsor | London HQ | backed by Energy Impact Partners, Future Energy Ventures, Microsoft, National Grid Partners | near Old Street (321 m) | https://www.ev.energy | sources: [funding](https://www.vcbacked.co/company/evenergy), [growth](https://www.ev.energy), [address](https://www.ev.energy/contact), [presence](https://chargedevs.com/newswire/ev-energy-secures-33-million-in-series-b-funding-for-ev-grid-integration/) - **Field** (`field`): Develops, builds and runs large battery storage sites across the UK and Europe. Climate / Grid-scale battery storage | Fastest growing | Hackney E1 6HU | founded 2020 | last round CVC DIF investment plus project debt financing, Jul 2026 | Companies House 13095982 | incorporated 2020-12-22 | 91 staff in filed accounts (group, period to 2025-03-31) | SIC 35110 | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2026, #73 | backed by CVC DIF | near Shoreditch High Street (195 m) | https://www.field.energy | sources: [funding](https://www.field.energy/views/field-reaches-financial-close-starts-construction-on-a-further-1-gwh-of-battery-storage-as-its-portfolio-of-projects-accelerates-), [growth](https://www.field.energy/views/field-reaches-financial-close-starts-construction-on-a-further-1-gwh-of-battery-storage-as-its-portfolio-of-projects-accelerates-), [address](https://www.field.energy/privacy-policy), [presence](https://www.esgtoday.com/energy-storage-startup-field-raises-200-million) - **Forest** (`forest`): London dockless e-bike sharing app with 1.5 million users riding across 18 boroughs. Climate / E-bike Sharing | Fastest growing | Southwark SE1 0DN | founded 2019 | last round Series B, £17M new equity plus £10M debt, Apr 2026 | Companies House 12352698 | incorporated 2019-12-06 | SIC 49319, 52219, 63110, 73200 | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2026, #79; Sifted 100 UK & Ireland 2024, #9 | backed by B8 Venture Partners, Fen Ventures, Güil Mobility Ventures, OKAI | near Borough (450 m) | https://forest.bike | sources: [funding](https://forest.bike/blog/forest-bikes-series-b-funding), [growth](https://forest.bike/blog/forest-bikes-series-b-funding), [address](https://forest.bike/policies/privacy-policy), [presence](https://www.linkedin.com/company/humanforest) - **Fuse Energy** (`fuse-energy`): Household energy supplier that also builds its own renewable generation, founded by ex-Revolut executives. Climate / Energy supplier | Well known | Tower Hamlets E14 4SG | founded 2022 | raised $178M | last round $30M from Collaborative Fund and 20VC, Jun 2026 | Companies House 08469701 | incorporated 2013-04-02 | SIC 35140 | hiring 53 in London | licensed visa sponsor | work model mixed (53 London job posts) | London HQ | on Sifted 100 UK & Ireland 2026, #2; Tech Nation Future Fifty 2026; LinkedIn Top Startups UK 2025, #1 | backed by Balderton Capital, Lakestar, 20VC, Collaborative Fund, Lowercarbon Capital, QuantumLight | near Heron Quays (215 m) | https://www.fuseenergy.com | sources: [funding](https://en.wikipedia.org/wiki/Fuse_Energy), [growth](https://en.wikipedia.org/wiki/Fuse_Energy), [address](https://www.fuseenergy.com), [presence](https://en.wikipedia.org/wiki/Fuse_Energy) - **Gaussion** (`gaussion`): UCL spinout using magnetic fields and control software to make lithium-ion batteries charge faster and last longer. Climate / Battery Technology | Fastest growing | Westminster W1W 6XH | founded 2022 | raised $44M | last round Growth round, £21M, Jun 2026 | Companies House 13474140 | incorporated 2021-06-23 | 19 staff in filed accounts (period to 2025-06-30) | SIC 72190 | London HQ | backed by AlbionVC, BGF, Autotech Ventures, DN Capital, Future Ventures, UCL Technology Fund | near Great Portland Street (424 m) | https://www.gaussion.com | sources: [funding](https://businesscloud.co.uk/live-blog/early-spacex-investor-joins-gaussions-21m-round/), [growth](https://businesscloud.co.uk/live-blog/early-spacex-investor-joins-gaussions-21m-round/), [address](https://find-and-update.company-information.service.gov.uk/company/13474140), [presence](https://www.linkedin.com/company/gaussion) - **Greenpixie** (`greenpixie`): Emissions and sustainability data for cloud and AI infrastructure, helping IT teams cut carbon and cost. Climate / Cloud Emissions Data | Up and coming | City of London EC2V 5DE | founded 2021 | last round Pre-Series A, £4.7M, May 2026 | Companies House 13444475 | incorporated 2021-06-08 | 11 staff in filed accounts (period to 2025-06-30) | SIC 62012, 62020, 62090 | licensed visa sponsor | London HQ | backed by VERBUND X Ventures, Armajaro Holdings, Green Angel Ventures, Octopus Ventures | near Moorgate (232 m) | https://greenpixie.com | sources: [funding](https://www.uktech.news/cloud/greenpixie-raises-4-7m-to-decarbonise-cloud-and-ai-data-centres-20260518), [growth](https://www.uktech.news/cloud/greenpixie-raises-4-7m-to-decarbonise-cloud-and-ai-data-centres-20260518), [address](https://greenpixie.com/about), [presence](https://greenpixie.com) - **Greyparrot** (`greyparrot`): AI cameras and software that identify waste on recycling lines so plants recover more material. Climate (also AI) / Waste and recycling analytics | Fastest growing | Southwark SE16 4DG | founded 2019 | last round Series B, $27M led by Omar Mir, Jul 2026 | Companies House 11706258 | incorporated 2018-11-30 | SIC 62020, 62090 | London HQ | on Tech Nation Upscale 2025 | backed by 360 Capital, Bollegraaf Group, Regeneration.VC, Speedinvest | near Bermondsey (445 m) | https://www.greyparrot.ai | sources: [funding](https://www.greyparrot.ai/series-b), [growth](https://www.greyparrot.ai/series-b), [address](https://www.greyparrot.ai), [presence](https://tech.eu/2026/07/28/greyparrot-secures-27m-series-b-to-scale-ai-waste-intelligence-for-the-circular-economy/) - **Highview Power** (`highview-power`): Builds liquid air energy storage plants that store renewable power for long periods and release it to the grid. Climate / Long-Duration Energy Storage | Fastest growing | Westminster SW1Y 4HH | last round £130M, Nov 2025 | Companies House 04489271 | incorporated 2002-07-18 | SIC 71122 | licensed visa sponsor | London HQ | backed by Centrica, Goldman Sachs, KIRKBI, Mosaic Capital, Scottish National Investment Bank | near Piccadilly Circus (257 m) | https://highviewpower.com | sources: [funding](https://www.orrick.com/en/News/2025/11/Highview-Power-Secures-130-Million-for-3-2GWh-Hybrid-Energy-Storage-Project), [growth](https://www.orrick.com/en/News/2025/11/Highview-Power-Secures-130-Million-for-3-2GWh-Hybrid-Energy-Storage-Project), [address](https://highviewpower.com/contact/), [presence](https://en.wikipedia.org/wiki/Highview_Power) - **HIVED** (`hived`): All-electric last-mile parcel delivery company serving online retailers, run on its own logistics software. Climate / Electric Parcel Delivery | Fastest growing | Tower Hamlets E2 7HR | founded 2021 | raised £45M (~$57.1M) | last round Series B, $42M, Jul 2025 | Companies House 13493813 | incorporated 2021-07-05 | 286 staff in filed accounts (period to 2025-12-31) | SIC 53202 | hiring 14 in London | licensed visa sponsor | work model mixed (14 London job posts) | London HQ | on Sifted 100 UK & Ireland 2026, #64; Tech Nation Future Fifty 2025 | backed by NordicNinja, Elemental Impact, Future Back Ventures by Bain & Company, Marunouchi Innovation Partners, Planet A, Rocketship.vc, Wex Venture Capital, Yamato Holdings | near Shoreditch High Street (153 m) | https://www.hived.space | sources: [funding](https://www.datocms-assets.com/60124/1774006698-sifted-100-uk-ireland-2026.pdf), [growth](https://www.electrive.com/2025/07/09/uk-logistics-firm-hived-nabs-42m-in-series-b-funding), [address](https://www.hived.space), [presence](https://www.hived.space) - **Hometree** (`hometree`): Home energy platform that finances and installs heat pumps, solar and batteries, and offers home cover plans. Climate / Home Energy | Well known | Camden WC1H 9BB | founded 2015 | last round Series B, $46M, Apr 2023 | Companies House 14007024 | incorporated 2022-03-28 | 1 staff in filed accounts (period to 2025-03-31) | SIC 64209 | hiring 1 in London | London HQ | backed by 2150, Energy Impact Partners, Legal & General Capital | near Euston (411 m) | https://www.hometree.co.uk | sources: [funding](https://tech.eu/2023/04/12/hometree-raises-46-million-and-acquires-bewarm-to-build-its-residential-energy-efficiency-platform-across-europe), [growth](https://www.hometree.co.uk/about-us), [address](https://www.hometree.co.uk/about-us), [presence](https://builtinlondon.uk/company/hometree) - **Hoxton Farms** (`hoxton-farms`): Grows real animal fat from cells in modular cultivators for use in meat and meat-alternative products. Climate / Cultivated fat | Up and coming | Islington EC1Y 8LZ | founded 2020 | raised $35M | Companies House 12726158 | incorporated 2020-07-07 | 41 staff in filed accounts (period to 2026-07-31) | SIC 10130, 72110 | licensed visa sponsor | London HQ | backed by Collaborative Fund, Fine Structure Ventures | near Old Street (383 m) | https://hoxtonfarms.com | sources: [funding](https://startups.co.uk/startups-100/2026/hoxton-farms-2026), [growth](https://startups.co.uk/startups-100/2026/hoxton-farms-2026), [address](https://find-and-update.company-information.service.gov.uk/company/12726158), [presence](https://www.foodnavigator.com/Article/2023/09/21/hoxton-farms-opens-new-london-facility/) - **Hypervolt** (`hypervolt`): Designs smart home EV chargers with solar integration and app-based tariff control, sold in the UK and abroad. Climate / EV Charging | Fastest growing | Tower Hamlets E14 5AB | founded 2018 | Companies House 11501984 | incorporated 2018-08-06 | SIC 27900, 35140 | licensed visa sponsor | London HQ | on Deloitte UK Technology Fast 50 2024, #21; Deloitte UK Technology Fast 50 2023, #3 | near Canary Wharf (136 m) | https://www.hypervolt.co.uk | sources: [growth](https://www.fast50.co.uk/fast50/winners/2024/), [address](https://ats.rippling.com/hypervolt/jobs/95db358c-35a0-498a-a6d2-243435f246b2), [presence](https://www.cbinsights.com/company/hypervolt) - **IONATE** (`ionate`): Makes Hybrid Intelligent Transformers that give grids, data centres and industrial sites precise power flow control. Climate / Grid Hardware | Up and coming | Hammersmith and Fulham W6 9RU | founded 2019 | last round Series A, €15.9M, Feb 2025 | Companies House SC640134 | incorporated 2019-08-29 | 22 staff in filed accounts (period to 2025-12-31) | SIC 72190 | licensed visa sponsor | London HQ | backed by AlbionVC, Antares Ventures, Cycle Group, IQ Capital, IQT, JGC Mirai Innovation Fund, Santander CIB, Zero Carbon Capital | near Hammersmith (710 m) | https://ionate.energy | sources: [growth](https://www.vestbee.com/insights/articles/top-european-funding-rounds-closed-in-february-2025), [address](https://ionate.energy/about), [presence](https://ionate.energy/about) - **Isometric** (`isometric`): Certifies carbon removal and other climate projects with AI-assisted verification and runs a public registry of credits. Climate / Carbon Removal Certification | Fastest growing | Camden WC1B 3JA | founded 2022 | raised $75M | last round Series A, $50M, Sep 2026 | Companies House 13829439 | incorporated 2022-01-05 | 38 staff in filed accounts (period to 2025-03-31) | SIC 62090 | hiring 5 in London | licensed visa sponsor | work model hybrid (2 London job posts) | London HQ | backed by AVP, Acario Innovation, BY Venture Partners, Dubai Future District Fund, Earth VC, Intercontinental Exchange, Lowercarbon Capital, Motion Ventures, One Capital, Plug and Play, Plural, Verb Ventures | near Goodge Street (307 m) | https://isometric.com | sources: [funding](https://isometric.com/writing-articles/intercontinental-exchange-backs-isometric-in-50m-series-a), [growth](https://isometric.com/writing-articles/intercontinental-exchange-backs-isometric-in-50m-series-a), [address](https://londonclimateactionweek.org/event/isometric-open-house/), [presence](https://siliconcanals.com/londons-isometric-bags-22m/) - **Kaluza** (`kaluza`): Software platform that energy suppliers use for billing, customer care and smart management of EVs and home devices. Climate / Energy Retail Software | Well known | Kensington and Chelsea W11 3JS | founded 2019 | last round AGL strategic investment, $100M, Jun 2024 | Companies House 12218299 | incorporated 2019-09-20 | SIC 62090 | hiring 23 in London | licensed visa sponsor | London HQ | backed by AGL Energy | near Notting Hill Gate (44 m) | https://kaluza.com | sources: [funding](https://dealroom.co/companies/kaluza/), [growth](https://dealroom.co/companies/kaluza/), [address](https://kaluza.com/about-us), [presence](https://www.cbinsights.com/company/kaluza) - **Kita** (`kita`): Kita is a Lloyd's coverholder that sells insurance against delivery, failure and political risk for carbon and natural capital projects. Climate / Carbon insurance | Up and coming | City of London EC3M 7DQ | founded 2021 | last round Seed, £4M, Feb 2023 | Companies House 13782654 | incorporated 2021-12-05 | 9 staff in filed accounts (period to 2025-09-30) | SIC 65120, 66290 | licensed visa sponsor | London HQ | backed by Octopus Ventures, Carbon13, Chaucer Group, Climate VC, Hartree Partners, Insurtech Gateway, Tokio Marine | near Monument (364 m) | https://www.kita.earth | sources: [funding](https://www.lw.com/en/news/2023/02/latham-advises-octopus-ventures-on-kita-series-seed), [growth](https://beinsure.com/news/tokio-marine-invests-in-insurtech-kita/), [address](https://www.kita.earth), [presence](https://find-and-update.company-information.service.gov.uk/company/13782654) - **Kraken** (`kraken`): Operating system software that utilities use to run billing, customer service and energy assets. Climate / Utility software | Well known | Westminster W1D 1NN | founded 2017 | last round Minority stake sale, $1B at $8.65B valuation, Dec 2025 | Companies House 12014731 | incorporated 2019-05-23 | SIC 62012 | licensed visa sponsor | London HQ | backed by British Business Bank | near Oxford Circus (202 m) | https://kraken.tech | sources: [funding](https://en.wikipedia.org/wiki/Kraken_Technologies), [growth](https://en.wikipedia.org/wiki/Kraken_Technologies), [address](https://find-and-update.company-information.service.gov.uk/company/12014731), [presence](https://builtinlondon.uk/company/kraken) - **Lightsource bp** (`lightsource-bp`): Global developer and operator of utility-scale solar, wind and battery storage projects, owned by bp. Climate / Solar And Storage | Well known | City of London EC1N 2HU | founded 2010 | Companies House 09494479 | incorporated 2015-03-17 | SIC 35110 | London HQ | near Chancery Lane (242 m) | https://lightsourcebp.com | sources: [growth](https://lightsourcebp.com/about/), [address](https://find-and-update.company-information.service.gov.uk/company/09494479), [presence](https://find-and-update.company-information.service.gov.uk/company/09494479) - **Meatly** (`meatly`): Makes cultivated chicken for pet food from cells, the first company to sell cultivated meat for pets. Climate / Cultivated Meat | Up and coming | City of London EC4R 1AG | founded 2022 | raised £17.4M (~$22.1M) | last round Series A, £10.4M, May 2026 | Companies House 13369531 | incorporated 2021-04-30 | 10 staff in filed accounts (period to 2025-04-30) | SIC 10920 | licensed visa sponsor | London HQ | backed by Agronomics, Clean Growth Fund, JamJar Investments, Oyster Bay Venture Capital, Pets at Home | near Mansion House (216 m) | https://meatly.pet | sources: [funding](https://meatly.pet/meatly-series-a/), [growth](https://meatly.pet/meatly-series-a/), [address](https://find-and-update.company-information.service.gov.uk/company/13369531), [presence](https://vegconomist.com/company-news/construction-begins-meatlys-london-facility-europes-largest-cultivated-meat-site/) - **Mission Zero Technologies** (`mission-zero-technologies`): Electrochemical direct air capture machines that pull CO2 from the air for use or storage. Climate / Direct Air Capture | Up and coming | Tower Hamlets E2 6GG | founded 2020 | last round Series A, £21.8M, Mar 2024 | Companies House 12701841 | incorporated 2020-06-29 | 45 staff in filed accounts (period to 2026-06-30) | SIC 72190 | licensed visa sponsor | London HQ | on Tech Nation Upscale 2024 | backed by 2150, Breakthrough Energy Ventures, Fortescue, Siemens Financial Services, World Fund | near Bethnal Green (Weaver) (206 m) | https://www.missionzero.tech | sources: [funding](https://www.maddyness.com/uk/?p=727584), [growth](https://www.missionzero.tech), [address](https://www.missionzero.tech), [presence](https://www.uktech.news/climate-tech/bill-gates-fund-backs-uk-carbon-capture-startup-20240318) - **Modern Synthesis** (`modern-synthesis`): Grows textile materials from bacterial nanocellulose as a lower-impact alternative to leather and plastics. Climate / Biomaterials | Up and coming | Lambeth SW12 0PS | founded 2019 | last round Series A, $5.5M, Feb 2025 | Companies House 12085226 | incorporated 2019-07-04 | 25 staff in filed accounts (period to 2025-12-31) | SIC 13990, 72110 | London HQ | backed by Extantia, Acequia Capital, AgFunder, Artesian, Collaborative Fund, IMO Ventures, Parley for the Oceans, Petri Bio, Ponderosa Ventures, Possible Ventures, Taihill Venture | near Balham (594 m) | https://modernsynthesis.com | sources: [funding](https://modernsynthesis.com), [growth](https://modernsynthesis.com), [address](https://modernsynthesis.com), [presence](https://modernsynthesis.com) - **Modo Energy** (`modo-energy`): Data, forecasts and regulated benchmarks for investors and operators of battery storage and power assets. Climate / Energy Market Analytics | Fastest growing | Camden NW1 2HD | founded 2019 | last round Series B, £25M, Dec 2025 | Companies House 11998983 | incorporated 2019-05-16 | 36 staff in filed accounts (period to 2025-10-31) | SIC 63110 | hiring 6 in London | licensed visa sponsor | London HQ | backed by Molten Ventures, ETF Partners, Fred. Olsen, MMC Ventures | near Euston Square (89 m) | https://modoenergy.com | sources: [funding](https://www.uktech.news/ai/modo-energy-seeks-rapid-expansion-following-25m-series-b-20251203), [growth](https://www.uktech.news/ai/modo-energy-seeks-rapid-expansion-following-25m-series-b-20251203), [address](https://modoenergy.com/privacy-policy), [presence](https://proptechconnect.com/modo-energy-secures-17-million-in-growth-funding-from-cibc-innovation-banking/) - **Mondra** (`mondra`): Platform that builds digital twins of food supply chains to measure product-level carbon, cost and risk for retailers and suppliers. Climate / Food supply chain carbon | Up and coming | City of London EC4A 1EN | founded 2020 | last round Series A, £10M, Oct 2025 | Companies House 12485878 | incorporated 2020-02-26 | SIC 62012, 62090 | licensed visa sponsor | London HQ | backed by AlbionVC, Green Circle Foodtech Ventures, PeakBridge, Planet A, Ponderosa Ventures, Swisscom | near Chancery Lane (197 m) | https://mondra.com | sources: [funding](https://tech.eu/2025/10/23/mondra-raises-ps10m-to-accelerate-european-expansion/), [growth](https://tech.eu/2025/10/23/mondra-raises-ps10m-to-accelerate-european-expansion/), [address](https://find-and-update.company-information.service.gov.uk/company/12485878), [presence](https://www.linkedin.com/company/mondra) - **Natcap** (`natcap`): Software platform that helps companies and investors measure, report and act on nature and biodiversity risks, including TNFD and CSRD disclosure. Climate / Nature risk data | Fastest growing | City of London EC4A 1LT | founded 2018 | raised £15M (~$19.1M) | Companies House 11580292 | incorporated 2018-09-20 | 28 staff in filed accounts (period to 2025-09-30) | SIC 62012, 72190 | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2026, #87; Tech Nation Upscale 2026 | backed by Alea Iacta Est, MW&L Capital Partners, Norinchukin Capital, Oxford Science Enterprises, Pelican, Yeo Ventures | near Chancery Lane (209 m) | https://natcapresearch.com | sources: [funding](https://www.datocms-assets.com/60124/1774006698-sifted-100-uk-ireland-2026.pdf), [growth](https://www.datocms-assets.com/60124/1774006698-sifted-100-uk-ireland-2026.pdf), [address](https://natcapresearch.com/contact-us), [presence](https://www.datocms-assets.com/60124/1774006698-sifted-100-uk-ireland-2026.pdf) - **Notpla** (`notpla`): Makes seaweed and plant based packaging that replaces single use plastic. Climate / Sustainable Packaging | Up and coming | Tower Hamlets E9 5EN | founded 2014 | last round Series A+, £20M, Sep 2024 | Companies House 09147492 | incorporated 2014-07-25 | SIC 74100 | hiring 4 in London | licensed visa sponsor | London HQ | on Tech Nation Upscale 2026 | backed by UB Forest Industry Green Growth Fund, Catalytic Capital for Climate & Health (Temasek Trust) | near Hackney Wick (135 m) | https://www.notpla.com | sources: [funding](https://notpla.com/magazine-posts/notpla-secures-ps20-million-in-series-a-funding-to-revolutionise-sustainable-packaging), [growth](https://notpla.com/magazine-posts/notpla-secures-ps20-million-in-series-a-funding-to-revolutionise-sustainable-packaging), [address](https://notpla.com/magazine-posts/notpla-secures-ps20-million-in-series-a-funding-to-revolutionise-sustainable-packaging), [presence](https://siliconcanals.com/?p=14526) - **Octopus Energy** (`octopus-energy`): Renewable-focused gas and electricity supplier and Britain's largest household energy supplier. Climate / Energy supplier | Well known | Westminster W1D 1NN | founded 2015 | last round $800M from existing shareholders, Dec 2023 | Companies House 09718624 | incorporated 2015-08-05 | SIC 64205 | hiring 36 in London | licensed visa sponsor | work model hybrid (36 London job posts) | London HQ | backed by CPP Investments, Galvanise, Generation Investment Management, Lightrock, Origin Energy, Tokyo Gas | near Oxford Circus (202 m) | https://octopus.energy | sources: [funding](https://en.wikipedia.org/wiki/Octopus_Energy), [growth](https://en.wikipedia.org/wiki/Octopus_Energy), [address](https://octopus.energy/contact-us/), [presence](https://en.wikipedia.org/wiki/Octopus_Energy) - **Ohme** (`ohme`): Smart home EV chargers and app that charge cars when power is cheapest and greenest. Climate / Smart EV charging | Up and coming | Westminster WC2R 0AP | founded 2019 | Companies House 11933185 | incorporated 2019-04-08 | SIC 45320 | hiring 20 in London | licensed visa sponsor | London HQ | backed by Systemiq Capital | near Temple (347 m) | https://ohme-ev.com | sources: [growth](https://ohme-ev.com/news-and-press/changan-and-ohme-partnership/), [address](https://ohme-ev.com/jobs/front-of-house-and-office-assistant-4950947101/), [presence](https://www.cbinsights.com/company/ohme) - **Olio** (`olio`): Sharing app where neighbours and volunteers give away surplus food and household items for free, including collections from supermarket partners. Climate / Food waste | Up and coming | Hammersmith and Fulham W6 0BE | founded 2015 | raised $51.2M | last round Series B, $43M | Companies House 09428660 | incorporated 2015-02-09 | 55 staff in filed accounts (period to 2026-02-28) | SIC 62012, 96090 | licensed visa sponsor | London team, no office | on Sifted 100 UK & Ireland 2024, #50 | backed by Accel, Octopus Ventures, VNV Global | near Goldhawk Road (405 m) | https://olioapp.com | sources: [funding](https://en.wikipedia.org/wiki/Olio_(app)), [growth](https://corporate.lidl.co.uk/media-centre/pressreleases/2026/olio-extension), [address](https://olioapp.com/en/privacy-policy/), [presence](https://en.wikipedia.org/wiki/Olio_(app)) - **Osprey Charging Network** (`osprey-charging-network`): Osprey builds and runs a UK network of public rapid and ultra-rapid EV charging hubs. Climate / EV charging | Up and coming | City of London EC4R 0DP | founded 2013 | last round Senior debt, £110M, Jul 2025 | Companies House 08460233 | incorporated 2013-03-25 | SIC 43210 | London HQ | backed by Cube Infrastructure, Investec | near Monument (150 m) | https://www.ospreycharging.co.uk | sources: [funding](https://www.ospreycharging.co.uk/post/osprey-multi-bank-funding), [growth](https://www.ospreycharging.co.uk/post/osprey-multi-bank-funding), [address](https://www.ospreycharging.co.uk/contact), [presence](https://www.ospreycharging.co.uk/contact) - **Piclo** (`piclo`): Runs an online marketplace where grid operators buy energy flexibility from owners of batteries, EV chargers and other distributed assets. Climate / Grid flexibility marketplace | Up and coming | Hackney EC2A 2AP | founded 2013 | last round Series B, £8.3M, Mar 2023 | Companies House 08384033 | incorporated 2013-01-31 | 48 staff in filed accounts (period to 2025-06-29) | SIC 62012 | licensed visa sponsor | London HQ | backed by Clean Growth Fund, Future Energy Ventures, Bethnal Green Ventures, EDP Ventures, Japan Energy Fund, Mott MacDonald Ventures, Sustainable Future Ventures, Toshiba Energy Systems & Solutions | near Liverpool Street (430 m) | https://www.piclo.com | sources: [funding](https://www.piclo.com/press-releases/piclo-raises-ps8-3-million-to-accelerate-decarbonisation-of-grid-internationally), [growth](https://www.piclo.com/about), [address](https://www.piclo.com/form/contact), [presence](https://www.piclo.com/form/contact) - **Polymateria** (`polymateria`): Polymateria makes an additive that makes plastic packaging biodegrade on a set timeline if it ends up in the environment instead of being recycled. Climate / Biodegradable plastics | Up and coming | Hammersmith and Fulham W12 0BZ | last round Series B, £20M, May 2023 | Companies House 09875556 | incorporated 2015-11-17 | 24 staff in filed accounts (period to 2025-12-31) | SIC 74909 | licensed visa sponsor | London HQ | backed by ABC Impact, Indorama Ventures | near White City (424 m) | https://www.polymateria.com | sources: [funding](https://imperial.ac.uk/news/244673/polymateria-raises-20-million-scale-biodegradable), [growth](https://imperial.ac.uk/news/244673/polymateria-raises-20-million-scale-biodegradable), [address](https://www.polymateria.com), [presence](https://imperial.ac.uk/news/244673/polymateria-raises-20-million-scale-biodegradable) - **Puraffinity** (`puraffinity`): Makes adsorbent materials that capture PFAS forever chemicals from water. Climate / PFAS water treatment | Up and coming | Hammersmith and Fulham W12 7RZ | founded 2015 | last round Series A extension, £6.73M from BGF, Sep 2024 | Companies House 09616956 | incorporated 2015-06-01 | SIC 72110, 74909 | licensed visa sponsor | London HQ | on Tech Nation Upscale 2024 | backed by BGF, HG Ventures, Kindred Capital, Octopus Ventures, Universal Materials Incubator, Verve Ventures | near White City (250 m) | https://www.puraffinity.com | sources: [funding](https://www.imperial.ac.uk/news/256433/puraffinity-raises-17m-prepares-scale-water/), [growth](https://www.imperial.ac.uk/news/256433/puraffinity-raises-17m-prepares-scale-water/), [address](https://www.puraffinity.com/contact), [presence](https://www.puraffinity.com/contact) - **Recycleye** (`recycleye`): AI vision and robotic sorting systems that help recycling facilities recover more material from mixed waste. Climate (also AI) / Waste Sorting Robotics | Up and coming | Newham E15 2HU | founded 2019 | last round Series A, $17M, Feb 2023 | Companies House 12221541 | incorporated 2019-09-23 | 43 staff in filed accounts (period to 2024-09-30) | SIC 63110 | hiring 3 in London | licensed visa sponsor | London HQ | backed by DCVC, Atypical, Creator Fund, MMC Ventures, Playfair Capital, Promus Ventures, Seaya Andromeda | near Stratford High Street (310 m) | https://www.recycleye.com | sources: [funding](https://recycleye.com/raises-17m-in-series-a/), [growth](https://recycleye.com/raises-17m-in-series-a/), [address](https://www.recycleye.com/contact), [presence](https://www.recycleye.com) - **RheEnergise** (`rheenergise`): Develops High-Density Hydro, a pumped storage system using a dense fluid so long-duration energy storage fits on low hills. Climate / Energy storage | Up and coming | Camden NW1 8NJ | founded 2019 | last round EIC Accelerator, £2.15M grant plus equity support, Jul 2025 | Companies House 11927250 | incorporated 2019-04-05 | 11 staff in filed accounts (period to 2025-12-31) | SIC 71121 | London HQ | near Camden Town (163 m) | https://www.rheenergise.com | sources: [funding](https://www.waterpowermagazine.com/news/rheenergise-awarded-2-15-million-grant-from-european-innovation-council/), [growth](https://www.rheenergise.com/), [address](https://www.rheenergise.com/), [presence](https://www.rheenergise.com/) - **Rivan** (`rivan`): Builds hardware that makes synthetic natural gas from green hydrogen and captured CO2 for injection into existing gas pipelines. Climate / Synthetic natural gas | Fastest growing | Southwark SE16 3PB | raised $46M | last round $34M round led by IQ Capital, Apr 2026 | Companies House 15209535 | incorporated 2023-10-13 | 15 staff in filed accounts (period to 2025-10-31) | SIC 72110 | licensed visa sponsor | London HQ | backed by IQ Capital, Fundomo, Plural | near Bermondsey (907 m) | https://rivan.com | sources: [funding](https://techfundingnews.com/rivan-34m-synthetic-gas-europe-energy-security/), [growth](https://techfundingnews.com/rivan-34m-synthetic-gas-europe-energy-security/), [address](https://rivan.com/), [presence](https://techfundingnews.com/rivan-34m-synthetic-gas-europe-energy-security/) - **Seabound** (`seabound`): Builds onboard carbon capture systems that trap CO2 from ship exhausts and turn it into limestone. Climate / Maritime Carbon Capture | Up and coming | Islington EC1V 2NX | Companies House 14170323 | incorporated 2022-06-14 | 17 staff in filed accounts (period to 2025-06-30) | SIC 72190, 74909 | licensed visa sponsor | London HQ | Y Combinator W22 | backed by Lomar, Y Combinator | near Old Street (146 m) | https://www.seabound.co | sources: [growth](https://www.seabound.co/news), [address](https://find-and-update.company-information.service.gov.uk/company/14170323), [presence](https://www.seabound.co) - **Shellworks** (`shellworks`): Makes Vivomer, a compostable plastic alternative made by microbial fermentation, used for cosmetics and personal care packaging. Climate / Biomaterials | Up and coming | Haringey N4 1LZ | founded 2019 | last round Series A, $15M, Mar 2026 | Companies House 12131588 | incorporated 2019-07-31 | 22 staff in filed accounts (period to 2025-12-31) | SIC 22290, 28990, 71121, 72190 | hiring 7 in London | licensed visa sponsor | work model hybrid (5 London job posts) | London HQ | on Tech Nation Upscale 2025 | backed by alter equity, Founder Collective, JamJar Investments, LocalGlobe, NFDG, Third Sphere | near Harringay Green Lanes (470 m) | https://www.shellworks.com | sources: [funding](https://tech.eu/2026/03/04/shellworks-raises-15m-to-scale-sustainable-plastic-alternative-vivomer/), [growth](https://tech.eu/2026/03/04/shellworks-raises-15m-to-scale-sustainable-plastic-alternative-vivomer/), [address](https://find-and-update.company-information.service.gov.uk/company/12131588), [presence](https://find-and-update.company-information.service.gov.uk/company/12131588) - **Sunsave** (`sunsave`): UK solar and battery subscription that removes the upfront cost of home solar for households. Climate / Home Solar | Fastest growing | Camden WC2H 9JQ | founded 2022 | last round Series A, £13M equity plus £100M debt, Jul 2025 | Companies House 13741813 | incorporated 2021-11-14 | 5 staff in filed accounts (period to 2025-12-31) | SIC 43210, 62012 | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2026, #19 | backed by IPGL, Norrsken VC, Clearance Capital, Plug and Play | near Covent Garden (208 m) | https://www.sunsave.energy | sources: [funding](https://tech.eu/2025/07/21/sunsave-raises-ps113m-to-scale-uks-first-solar-subscription-service/), [growth](https://www.datocms-assets.com/60124/1774006698-sifted-100-uk-ireland-2026.pdf), [address](https://www.sunsave.energy/contact-us), [presence](https://www.sunsave.energy/careers) - **Supercritical** (`supercritical`): Runs a marketplace where companies buy vetted permanent carbon removal credits such as biochar and BECCS. Climate / Carbon removal | Up and coming | Hackney EC2A 3JF | founded 2021 | last round Undisclosed round led by Greencode Ventures, May 2026 | Companies House 13162692 | incorporated 2021-01-27 | 24 staff in filed accounts (period to 2025-12-31) | SIC 62012 | London HQ | on Tech Nation Upscale 2025 | backed by Greencode Ventures, Lightspeed Venture Partners, LocalGlobe, RTP Global | near Old Street (360 m) | https://www.gosupercritical.com | sources: [funding](https://www.greencode.vc/insights/supercritical-secures-new-funding-2026), [growth](https://www.greencode.vc/insights/supercritical-secures-new-funding-2026), [address](https://find-and-update.company-information.service.gov.uk/company/13162692), [presence](https://www.gosupercritical.com/about-us) - **Supercritical Solutions** (`supercritical-solutions`): Builds an electrochemical reactor that makes hydrogen from water and specialty chemicals from carbon-rich waste. Climate / Electrochemical Hydrogen | Up and coming | Ealing W3 7QE | founded 2020 | last round Series A, £14M, Mar 2025 | Companies House 12702979 | incorporated 2020-06-29 | 20 staff in filed accounts (period to 2025-06-30) | SIC 27900, 72190 | London HQ | backed by Shell Ventures, Toyota Ventures, Al Mada Ventures, Alumni Ventures, Anglo American Platinum, Blackfinch Ventures, Earth Ventures, Global Brain, Kibo Invest, Lowercarbon Capital, TOP Ventures | near Acton Central (536 m) | https://www.supercritical.solutions | sources: [funding](https://tech.eu/2025/03/11/supercritical-raises-14m-series-a-for-affordable-green-hydrogen-led-by-shell-and-toyota-ventures/), [growth](https://tech.eu/2025/03/11/supercritical-raises-14m-series-a-for-affordable-green-hydrogen-led-by-shell-and-toyota-ventures/), [address](https://www.supercritical.solutions), [presence](https://www.supercritical.solutions/post/supercritical-unveils-global-tech-centre-in-london-to-accelerate-hydrogen-deployment) - **Switchee** (`switchee`): Smart thermostat and data platform helping social housing providers spot cold, damp and mould in homes. Climate / Smart Housing Data | Fastest growing | Southwark SE1 1RU | founded 2014 | Companies House 09123710 | incorporated 2014-07-09 | 94 staff in filed accounts (period to 2025-04-30) | SIC 27900, 46520, 63990 | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2024, #43; Deloitte UK Technology Fast 50 2024, #47 | backed by AXA IM Alts, Octopus Ventures | near Borough (391 m) | https://www.switchee.com | sources: [growth](https://switchee.com/news/sifted-100-2025/), [address](https://www.switchee.com/contact), [presence](https://builtinlondon.uk/company/switchee) - **Sylvera** (`sylvera`): Ratings and data that show buyers and investors how good carbon credits and climate projects really are. Climate / Carbon credit ratings | Up and coming | Hackney N1 7SR | founded 2020 | last round Series B, $57M, Jul 2023 | Companies House 12382318 | incorporated 2020-01-02 | SIC 62012 | hiring 1 in London | licensed visa sponsor | London HQ | on LinkedIn Top Startups UK 2023, #5 | backed by 9Yards Capital, Bain & Company, Balderton Capital, Fidelity Strategic Ventures, Index Ventures, Insight Partners, LocalGlobe, Salesforce, Seedcamp, Speedinvest | near Old Street (356 m) | https://www.sylvera.com | sources: [funding](https://www.sylvera.com/blog/series-b-announcement), [growth](https://www.sylvera.com/careers), [address](https://info.sylvera.com/hubfs/Privacy%20Notice%20(Website)%20-%20June%202026.docx.pdf), [presence](https://tech.eu/2021/05/13/london-based-carbon-offset-ratings-provider-sylvera-raises-7-8-million-seeks-to-bring-new-levels-of-transparency-to-the-market/) - **Tem** (`tem`): AI-powered platform that lets businesses buy electricity straight from generators without wholesale markups. Climate / Energy transaction infrastructure | Fastest growing | Wandsworth SW11 8BZ | founded 2021 | last round Series B, $75M led by Lightspeed, 2026 | Companies House 13499591 | incorporated 2021-07-07 | 42 staff in filed accounts (period to 2025-10-31) | SIC 82990 | licensed visa sponsor | London HQ | backed by Lightspeed Venture Partners, AlbionVC, Atomico, Hitachi Ventures, Revent, Schroders Capital, Voyager Ventures | near Battersea Power Station (288 m) | https://tem.energy | sources: [funding](https://itbrief.co.uk/story/tem-names-claire-addison-as-chief-of-staff-after-funding), [growth](https://itbrief.co.uk/story/tem-names-claire-addison-as-chief-of-staff-after-funding), [address](https://tem.energy), [presence](https://techcrunch.com/2026/02/09/tem-raises-75m-to-remake-electricity-markets-using-ai/) - **Tewke** (`tewke`): Makes Tap, a touchscreen smart light switch that controls lighting, heating and music and monitors home energy use. Climate / Home energy | Up and coming | Southwark SE1 0HX | last round £1.5M, Feb 2026 | Companies House 11775040 | incorporated 2019-01-18 | SIC 26400 | London HQ | backed by Cur8 Capital, Energy Mix Ventures, JamJar Investments, Project Ventures | near Southwark (420 m) | https://www.tewke.com | sources: [funding](https://proptechconnect.com/tewke-secures-15m-to-scale-al-powered-home-energy-platform/), [growth](https://proptechconnect.com/tewke-secures-15m-to-scale-al-powered-home-energy-platform/), [address](https://find-and-update.company-information.service.gov.uk/company/11775040), [presence](https://proptechconnect.com/tewke-secures-15m-to-scale-al-powered-home-energy-platform/) - **The Electric Car Scheme** (`the-electric-car-scheme`): Runs salary sacrifice schemes that let employees lease new or used electric cars paid from gross salary at no cost to the employer. Climate / EV salary sacrifice | Up and coming | Hillingdon UB3 1HA | founded 2020 | last round Undisclosed round led by 13books Capital, Oct 2024 | Companies House 12646157 | incorporated 2020-06-04 | SIC 77110 | London HQ | backed by 13books Capital, Adjuvo, Ascension, Bayern Kapital, Seedcamp, Triple Point Ventures | near Hayes & Harlington (551 m) | https://www.electriccarscheme.com | sources: [funding](https://evpowered.co.uk/news/the-electric-car-scheme-announces-further-investment-as-growth-soars-160/), [growth](https://evpowered.co.uk/news/the-electric-car-scheme-announces-further-investment-as-growth-soars-160/), [address](https://www.electriccarscheme.com), [presence](https://employmenthero.com/uk/jobs/organisations/electriccarscheme/) - **Treefera** (`treefera`): AI and satellite data platform that tracks the origin and risk of commodities like timber, cocoa and soy. Climate / Supply Chain Intelligence | Fastest growing | Hackney EC2A 4NA | founded 2022 | last round Series B, $30M, Jun 2025 | Companies House 14266493 | incorporated 2022-08-01 | SIC 62012, 63110 | London HQ | backed by Notion Capital, AlbionVC, Endeit Capital, Triple Point, Twinpath Ventures | near Old Street (321 m) | https://treefera.com | sources: [funding](https://www.uktech.news/ai/treefera-ai-series-b-20250603), [growth](https://www.uktech.news/ai/treefera-ai-series-b-20250603), [address](https://find-and-update.company-information.service.gov.uk/company/14266493), [presence](https://jobs.ashbyhq.com/treefera/f5ee4b87-1027-4687-9625-1b3c22180370) - **UNDO** (`undo`): Removes CO2 by spreading crushed silicate rock on farmland through enhanced rock weathering. Climate / Carbon removal | Up and coming | Hackney EC2A 4NE | founded 2022 | last round $12M, May 2023 | Companies House 14080559 | incorporated 2022-05-02 | SIC 74901 | licensed visa sponsor | London HQ | near Old Street (321 m) | https://un-do.com | sources: [funding](https://www.qcintel.com/carbon/article/uk-carbon-removals-developer-receives-13m-backing-14067.html), [growth](https://www.esgtoday.com/microsoft-signs-deal-with-undo-to-capture-co2-using-rocks-and-soil/), [address](https://un-do.com/contact/), [presence](https://un-do.com/careers/) - **Volteras** (`volteras`): Provides a single API that streams connected vehicle and charger data from 30+ automakers to fleets and energy companies. Climate / EV data API | Up and coming | City of London EC2M 4YP | founded 2020 | last round Series A, $11.1M, Jun 2025 | Companies House 12550040 | incorporated 2020-04-07 | 13 staff in filed accounts (period to 2025-12-31) | SIC 62012, 62090, 63110 | licensed visa sponsor | London HQ | backed by Union Square Ventures, Edenred, Exor, Long Journey Ventures, Wex | near Aldgate (307 m) | https://www.volteras.com | sources: [funding](https://kurrant.com/kurrantly-news/volteras-secures-11-1-million-to-expand-energy-and-mobility-data-platform/), [growth](https://kurrant.com/kurrantly-news/volteras-secures-11-1-million-to-expand-energy-and-mobility-data-platform/), [address](https://www.volteras.com/contact), [presence](https://www.volteras.com/contact) - **Winnow** (`winnow`): AI system that automatically records and analyses food thrown away in commercial kitchens so operators can cut waste and food costs. Climate (also AI) / Food waste AI | Up and coming | Islington EC1R 3DF | founded 2013 | Companies House 08551367 | incorporated 2013-05-31 | 52 staff in filed accounts (period to 2025-05-31) | SIC 26512 | hiring 1 in London | licensed visa sponsor | London HQ | backed by ABC Impact | near Farringdon (526 m) | https://www.winnowsolutions.com | sources: [funding](https://startuprise.co.uk/winnow-secures-funding-from-abc-impact/), [growth](https://www.winnowsolutions.com/about), [address](https://www.winnowsolutions.com/contact), [presence](https://startuprise.co.uk/winnow-secures-funding-from-abc-impact/) - **Zenobē** (`zenobe`): Zenobe builds and runs grid-scale battery storage and provides charging, batteries and software to electrify bus and truck fleets. Climate / Battery storage | Fastest growing | Westminster WC2N 6DU | founded 2017 | raised £1.4B (~$1.8B) | last round Share issues to shareholders, £126.4M, 2025 | Companies House 10436249 | incorporated 2016-10-19 | SIC 35110 | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2024, #78 | backed by KKR | near Embankment (144 m) | https://www.zenobe.com/ | sources: [funding](https://tech.eu/2023/09/07/zenobe-secures-major-investment-from-kkr-and-infracapital), [growth](https://find-and-update.company-information.service.gov.uk/company/10436249/filing-history/MzUyNTkzMzcyNmFkaXF6a2N4/document?format=pdf&download=0), [address](https://www.zenobe.com/contact), [presence](https://www.zenobe.com/contact) - **Zevero** (`zevero`): Carbon management software that combines AI carbon accounting with in-house climate experts for footprints, product footprints and ESG reporting. Climate / Carbon accounting | Fastest growing | Camden WC1V 6DF | founded 2021 | raised $14M | last round $7M, Mar 2026 | Companies House 13201438 | incorporated 2021-02-15 | 25 staff in filed accounts (period to 2025-12-31) | SIC 74901 | licensed visa sponsor | London office, HQ elsewhere | backed by Deep 30, Gazelle Capital, Spiral Capital | near Holborn (216 m) | https://www.zevero.earth | sources: [funding](https://esgpost.com/climate-tech-platform-zevero-raises-7-million-as-global-demand-for-carbon-data-accelerates/), [growth](https://esgpost.com/climate-tech-platform-zevero-raises-7-million-as-global-demand-for-carbon-data-accelerates/), [address](https://find-and-update.company-information.service.gov.uk/company/13201438), [presence](https://www.zevero.earth/about) ### Other (139) - **Ably** (`ably`): Realtime pub/sub messaging platform that lets developers add live features to apps, used by HubSpot and Webflow. Other / Realtime Infrastructure | Up and coming | Hackney EC2A 3JT | founded 2016 | raised $78M | Companies House 06946246 | incorporated 2009-06-29 | SIC 62090 | licensed visa sponsor | London HQ | GitHub ably | backed by Dawn Capital, Forward Partners, Insight Partners, MMC Ventures | near Old Street (424 m) | https://ably.com | sources: [funding](https://ably.com/about), [growth](https://ably.com/about), [address](https://ably.com/contact), [presence](https://builtinlondon.uk/company/ably-realtime) - **Arbolus** (`arbolus`): Expert network platform that connects investors and consultants with industry experts through calls, video Q&A and searchable AI transcripts. Other / Expert network | Fastest growing | City of London EC4A 4AB | founded 2017 | last round Series B, $20M, Nov 2024 | Companies House 10919514 | incorporated 2017-08-16 | SIC 62012, 63990 | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2024, #84 | backed by Kayne Anderson, 13books Capital, Composition Capital, Fuel Ventures, Plug and Play | near St. Paul's (479 m) | https://www.arbolus.com/ | sources: [funding](https://www.integrity-research.com/expert-network-arbolus-closes-20-mln-series-b-funding/), [growth](https://www.integrity-research.com/expert-network-arbolus-closes-20-mln-series-b-funding/), [address](https://find-and-update.company-information.service.gov.uk/company/10919514), [presence](https://www.integrity-research.com/expert-network-arbolus-closes-20-mln-series-b-funding/) - **ASOS** (`asos`): ASOS is an online fashion retailer selling its own brands and hundreds of partner brands to customers in more than 150 markets. Other / Online fashion | Well known | Camden NW1 7FB | founded 2000 | Companies House 04006623 | incorporated 2000-06-02 | SIC 70100 | London HQ | near Mornington Crescent (148 m) | https://www.asosplc.com | sources: [growth](https://en.wikipedia.org/wiki/ASOS_(retailer)), [address](https://www.asosplc.com/), [presence](https://www.asosplc.com/) - **Atom Learning** (`atom-learning`): Adaptive online exam preparation platform for 11+ entrance exams through to GCSE, used by families, tutors and schools. Other / Edtech | Up and coming | Camden WC1X 8HN | raised $25M | last round Series A, $25M, Dec 2021 | Companies House 10867907 | incorporated 2017-07-17 | 80 staff in filed accounts (period to 2025-12-31) | SIC 63990, 85200, 85310 | licensed visa sponsor | London HQ | backed by SoftBank Vision Fund | near Chancery Lane (77 m) | https://www.atomlearning.com | sources: [funding](https://siliconcanals.com/london-atom-learning-bags-22m/), [growth](https://www.atomlearning.com/), [address](https://find-and-update.company-information.service.gov.uk/company/10867907), [presence](https://siliconcanals.com/london-atom-learning-bags-22m/) - **Attest** (`attest`): Attest is a consumer research platform that lets brands run surveys and AI-moderated interviews with real consumers. Other / Consumer research SaaS | Up and coming | Islington EC2A 2DX | raised $85M | last round Series B, $60M, Oct 2021 | Companies House 09445883 | incorporated 2015-02-18 | SIC 62012 | licensed visa sponsor | London HQ | backed by Kismet, New Enterprise Associates | near Old Street (463 m) | https://www.askattest.com | sources: [funding](https://tech.eu/2021/10/27/consumer-research-platform-attest-raises-60-million/), [growth](https://www.askattest.com), [address](https://find-and-update.company-information.service.gov.uk/company/09445883), [presence](https://careers.askattest.com/) - **Bark.com** (`bark-com`): Online marketplace that matches people with local service professionals across more than 1,500 categories. Other / Services marketplace | Up and coming | Westminster W1W 5PF | founded 2014 | Companies House 10614196 | incorporated 2017-02-10 | SIC 63120 | licensed visa sponsor | London HQ | near Great Portland Street (244 m) | https://www.bark.com | sources: [funding](https://en.wikipedia.org/wiki/Bark.com), [growth](https://en.wikipedia.org/wiki/Bark.com), [address](https://find-and-update.company-information.service.gov.uk/company/10614196), [presence](https://builtinlondon.uk/company/barkcom) - **Ben** (`ben`): AI-native platform for companies to design, manage and scale employee benefits globally. Other / Employee Benefits | Fastest growing | City of London EC2V 6DN | founded 2019 | last round Series B, $27.5M, Dec 2025 | Companies House 12335851 | incorporated 2019-11-27 | SIC 62090 | licensed visa sponsor | London HQ | on Tech Nation Future Fifty 2026; LinkedIn Top Startups UK 2023, #7 | backed by Mercia Ventures, Atomico, Cherry Ventures, DN Capital, QuantumLight, Seedcamp | near Mansion House (231 m) | https://www.thanksben.com | sources: [funding](https://coverager.com/ben-raises-27-5m-in-series-b/), [growth](https://coverager.com/ben-raises-27-5m-in-series-b/), [address](https://www.thanksben.com/careers), [presence](https://www.thanksben.com) - **BibliU** (`bibliu`): Runs college campus stores in the US and delivers digital course materials to students through its own platform. Other / Edtech | Fastest growing | Waltham Forest E17 6ZJ | founded 2014 | last round $55M from BlackRock, Stonehage Fleming and others, incl. a convertible investment, Jun 2026 | Companies House 09334024 | incorporated 2014-12-01 | SIC 47610, 62090, 85600 | licensed visa sponsor | London office, HQ elsewhere | on Tech Nation Future Fifty 2024 | backed by Stonehage Fleming | near Blackhorse Road (214 m) | https://bibliu.com | sources: [funding](https://bibliu.com/in-the-news/bibliu-raises-over-55-million-in-new-funding), [growth](https://bibliu.com/in-the-news/bibliu-raises-over-55-million-in-new-funding), [address](https://bibliu.com/contact-us), [presence](https://bibliu.com/contact-us) - **Blink** (`blink`): Blink is a mobile app for frontline workers that combines company news, chat, forms, shift tools and an intranet in one place. Other / HR tech | Up and coming | Hackney N1 7LP | founded 2014 | raised £22.3M (~$28.3M) | last round Series A, $20M, Nov 2021 | Companies House 08817286 | incorporated 2013-12-17 | SIC 62012, 82990 | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2024, #75 | backed by Next47, Partech, Techstars | near Old Street (346 m) | https://www.joinblink.com/ | sources: [funding](https://content.sifted.eu/wp-content/uploads/2024/04/11080007/Sifted-100-UK-Ireland.pdf), [growth](https://partechpartners.com/news/blink-raises-new-funding-power-frontline-and-remote-workers-globally), [address](https://www.joinblink.com/privacy-policy), [presence](https://www.joinblink.com/privacy-policy) - **Bloom & Wild** (`bloom-wild`): Bloom & Wild sells flowers, plants and gifts online for delivery, including letterbox flowers. Other / Online gifting | Up and coming | Lambeth SE11 5JH | last round Series D, £75M, Jan 2021 | Companies House 08419307 | incorporated 2013-02-26 | SIC 47760 | licensed visa sponsor | London HQ | backed by General Catalyst, Burda Principal Investments, D4 Ventures, Index Ventures, Latitude Ventures, Novator | near Vauxhall (346 m) | https://www.bloomandwild.com | sources: [funding](https://tech.eu/2021/01/18/bloom-and-wild-series-d/), [growth](https://find-and-update.company-information.service.gov.uk/company/08419307/filing-history), [address](https://find-and-update.company-information.service.gov.uk/company/08419307), [presence](https://tech.eu/2021/01/18/bloom-and-wild-series-d/) - **Canonical** (`canonical`): Canonical publishes the Ubuntu Linux operating system and sells enterprise support and services around it. Other / Open-source software | Well known | Southwark SE1 2AQ | founded 2004 | Companies House 06870835 | incorporated 2009-04-06 | SIC 62012 | hiring 15 in London | licensed visa sponsor | work model on-site (6 London job posts) | London HQ | GitHub canonical | near London Bridge (525 m) | https://canonical.com | sources: [growth](https://en.wikipedia.org/wiki/Canonical_(company)), [address](https://canonical.com/contact-us), [presence](https://en.wikipedia.org/wiki/Canonical_(company)) - **Carv** (`carv`): Carv makes clip-on ski boot sensors and an app that give skiers real-time audio coaching on their technique. Other / Sports wearables | Up and coming | Lambeth SE1 7SJ | raised $10.9M | last round Series A extension, $5.1M, Jun 2022 | Companies House 08703341 | incorporated 2013-09-24 | 31 staff in filed accounts (period to 2025-04-30) | SIC 26400 | licensed visa sponsor | London HQ | backed by Hiro Capital, Artesian, SOSV | near Vauxhall (759 m) | https://getcarv.com | sources: [funding](https://tech.eu/2022/06/16/carv-carves-out-51-million-funding-to-give-skiing-lessons/), [growth](https://getcarv.com/), [address](https://find-and-update.company-information.service.gov.uk/company/08703341), [presence](https://tech.eu/2022/06/16/carv-carves-out-51-million-funding-to-give-skiing-lessons/) - **Carwow** (`carwow`): Online car marketplace where dealers compete with offers to buy or sell your car. Other / Car marketplace | Well known | Westminster SW1E 5DH | founded 2013 | last round $55M, Dec 2021 | Companies House 07103079 | incorporated 2009-12-12 | SIC 58142, 62090 | hiring 17 in London | licensed visa sponsor | work model hybrid (9 London job posts) | London HQ | backed by Accel, Balderton Capital, Mercedes-Benz, Channel 4, Episode 1 Ventures, ITV, Samos Investments, Volvo Cars | near Victoria (273 m) | https://www.carwow.co.uk | sources: [funding](https://en.wikipedia.org/wiki/Carwow), [growth](https://en.wikipedia.org/wiki/Carwow), [address](https://www.carwow.co.uk/about-us), [presence](https://en.wikipedia.org/wiki/Carwow) - **CENTURY Tech** (`century-tech`): Online learning platform for English, maths and science that uses AI to personalise lessons and automate marking for schools and colleges. Other / Edtech | Up and coming | Camden WC1E 7EB | founded 2013 | Companies House 08482934 | incorporated 2013-04-10 | 89 staff in filed accounts (period to 2025-03-31) | SIC 62012 | licensed visa sponsor | London HQ | near Goodge Street (120 m) | https://www.century.tech/ | sources: [growth](https://www.century.tech/), [address](https://www.century.tech/), [presence](https://www.century.tech/) - **Civica** (`civica`): Civica builds software for public sector bodies such as councils, healthcare, education and housing providers. Other / GovTech software | Well known | Southwark SE1 9LQ | Companies House 04968437 | incorporated 2003-11-18 | SIC 62090 | hiring 10 in London | licensed visa sponsor | work model hybrid (10 London job posts) | London HQ | near Blackfriars (301 m) | https://www.civica.com | sources: [growth](https://en.wikipedia.org/wiki/Civica_(company)), [address](https://find-and-update.company-information.service.gov.uk/company/04968437), [presence](https://en.wikipedia.org/wiki/Civica_(company)) - **Claranet** (`claranet`): Claranet provides managed network, hosting, cloud, application and cyber security services to businesses in Europe and Brazil. Other / Managed IT and cloud | Well known | Westminster WC2E 9AB | founded 1996 | Companies House 04037420 | incorporated 2000-07-20 | SIC 62090 | licensed visa sponsor | London HQ | near Covent Garden (143 m) | https://www.claranet.com | sources: [growth](https://find-and-update.company-information.service.gov.uk/company/04037420/filing-history), [address](https://www.claranet.com/uk/contact/), [presence](https://en.wikipedia.org/wiki/Claranet) - **Coadjute** (`coadjute`): Network and compliance platform connecting estate agents, conveyancers and lenders to speed up UK property transactions. Other / Proptech | Fastest growing | Hackney N1 6PB | founded 2018 | raised £23M (~$29.2M) | last round Strategic round, £10M, Apr 2024 | Companies House 11559616 | incorporated 2018-09-10 | 25 staff in filed accounts (period to 2025-03-31) | SIC 62012 | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2026, #42 | backed by NatWest, PXN Group | near Old Street (483 m) | https://www.coadjute.com | sources: [funding](https://www.datocms-assets.com/60124/1774006698-sifted-100-uk-ireland-2026.pdf), [growth](https://www.datocms-assets.com/60124/1774006698-sifted-100-uk-ireland-2026.pdf), [address](https://www.coadjute.com), [presence](https://www.coadjute.com) - **Cognism** (`cognism`): B2B sales intelligence platform that gives sales and marketing teams compliant contact and company data for prospecting and CRM enrichment. Other / Sales intelligence | Up and coming | Southwark SE1 9SG | founded 2015 | raised $123.5M | last round Series C, $87.5M, Jan 2022 | Companies House 09392705 | incorporated 2015-01-16 | SIC 63110 | hiring 8 in London | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2024, #71; Deloitte UK Technology Fast 50 2023, #43 | backed by Blue Cloud Ventures, Viking Global Investors, AXA Venture Partners, Swisscom Ventures | near London Bridge (117 m) | https://www.cognism.com | sources: [funding](https://tech.eu/brief/b2b-sales-intelligence-platform-cognism-raises-87-5-million/), [growth](https://www.cognism.com/about-us), [address](https://www.cognism.com/contact-us), [presence](https://www.cognism.com/newsroom/cognism-appoints-ceo-and-cro) - **Colt Technology Services** (`colt-technology-services`): Colt runs a global fibre network and sells connectivity, voice and data centre services to businesses and carriers. Other / Network infrastructure | Well known | Hackney EC2A 3EH | founded 1992 | Companies House 02452736 | incorporated 1989-12-15 | SIC 61900 | licensed visa sponsor | London HQ | near Shoreditch High Street (300 m) | https://www.colt.net | sources: [growth](https://find-and-update.company-information.service.gov.uk/company/02452736/filing-history), [address](https://www.colt.net/contact), [presence](https://www.colt.net/contact) - **Community Fibre** (`community-fibre`): Builds and runs a full-fibre broadband network selling home and business internet across London. Other / Full-fibre broadband | Well known | Westminster W1W 5PF | founded 2010 | Companies House 07413288 | incorporated 2010-10-20 | SIC 61100 | licensed visa sponsor | London HQ | backed by DTCP, NDIF, Railpen, Warburg Pincus | near Great Portland Street (244 m) | https://communityfibre.co.uk | sources: [growth](https://www.ispreview.co.uk/index.php/2026/05/full-fibre-broadband-network-communityfibre-may-restart-uk-fttp-rollout.html), [address](https://find-and-update.company-information.service.gov.uk/company/07413288), [presence](https://communityfibre.co.uk/about-us) - **Connectd** (`connectd`): Marketplace that matches startups with fractional executives, advisors and non-executive directors. Other / Fractional Talent Marketplace | Up and coming | Tower Hamlets E1 8EW | founded 2020 | last round Series A, $7M, Jul 2025 | Companies House 12280705 | incorporated 2019-10-24 | 87 staff in filed accounts (period to 2026-03-31) | SIC 62012 | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2026, #98; Deloitte UK Technology Fast 50 2025, #27; LinkedIn Top Startups UK 2025, #5; LinkedIn Top Startups UK 2024, #6 | backed by Anker Capital Management | near Aldgate East (129 m) | https://www.connectd.com | sources: [funding](https://www.connectd.com/learn/press), [growth](https://www.linkedin.com/pulse/linkedin-top-startups-2025-20-uk-companies-rise-linkedin-news-uk-vczpc), [address](https://www.connectd.com/about), [presence](https://www.connectd.com/about) - **CULT MIA** (`cult-mia`): CULT MIA is an online marketplace selling clothing and accessories from vetted independent fashion designers. Other / Fashion marketplace | Up and coming | Kensington and Chelsea SW10 9EL | founded 2019 | last round Seed, EUR 4.6M, Oct 2024 | Companies House 12019305 | incorporated 2019-05-28 | 12 staff in filed accounts (period to 2025-05-31) | SIC 47910, 47990 | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2024, #57 | backed by Fuel Ventures, H&M Group Ventures, Morgan Stanley | near West Brompton (850 m) | https://cultmia.com/ | sources: [funding](https://vestbee.com/insights/articles/cult-mia-secures-4-6-m), [growth](https://vestbee.com/insights/articles/cult-mia-secures-4-6-m), [address](https://cultmia.com/policies/contact-information), [presence](https://cultmia.com/policies/contact-information) - **CybaVerse** (`cybaverse`): CybaVerse sells CybaOps, a SaaS platform for SMEs and managed service providers that combines threat detection, compliance, security testing and security operations. Other / Cybersecurity | Up and coming | Camden WC2B 6NH | founded 2018 | raised €7.4M (~$8M) | last round Series A, £5M, Oct 2025 | Companies House 11537535 | 32 staff in filed accounts (period to 2025-12-31) | licensed visa sponsor | London office, HQ elsewhere | backed by Airbridge Equity Partners, Pembroke VCT, Haatch | near Holborn (38 m) | https://cybaverse.co.uk | sources: [funding](https://www.vestbee.com/insights/articles/top-european-funding-rounds-closed-in-october-2025), [growth](https://tech.eu/2025/10/15/cybaverse-secures-ps5m-to-fuel-growth-and-accelerate-innovation/), [address](https://cybaverse.co.uk/contact), [presence](https://cybaverse.co.uk/contact) - **CyberSmart** (`cybersmart`): CyberSmart gives small businesses cybersecurity tools, staff training, Cyber Essentials certification and cyber insurance in one platform. Other / Cybersecurity | Up and coming | Tower Hamlets E1 5JL | founded 2016 | last round Series B, $15M, Feb 2023 | Companies House 10088945 | incorporated 2016-03-29 | SIC 62012 | London HQ | backed by Oxx, British Patient Capital, Eos Venture Partners, IQ Capital, Legal & General Capital, Seedcamp, Solano Partners, Winton Ventures | near Shoreditch High Street (473 m) | https://cybersmart.co.uk | sources: [funding](https://fintech.global/2023/02/24/cybersecurity-platform-for-smes-cybersmart-raises-15m/), [growth](https://cybersmart.co.uk), [address](https://cybersmart.co.uk/contact), [presence](https://cybersmart.co.uk/contact) - **CybSafe** (`cybsafe`): CybSafe is a human risk management platform that measures and changes employee security behaviours with nudges, phishing simulations and automated interventions. Other / Cybersecurity | Up and coming | City of London EC4A 3TW | founded 2015 | raised $40M | last round Series B, $28M, Jun 2022 | Companies House 09642350 | incorporated 2015-06-16 | 39 staff in filed accounts (period to 2025-12-31) | SIC 85590 | licensed visa sponsor | London HQ | backed by Evolution Equity Partners, Emerald Development Managers, HDI, IQ Capital | near Chancery Lane (373 m) | https://www.cybsafe.com | sources: [funding](https://pulse2.com/cybersecurity-company-cybsafe-closes-28-million-in-funding), [growth](https://itchanneloxygen.com/security-training-doesnt-work-cybsafe-claims-as-it-adopts-channel-first-mantra/), [address](https://find-and-update.company-information.service.gov.uk/company/09642350), [presence](https://itchanneloxygen.com/security-training-doesnt-work-cybsafe-claims-as-it-adopts-channel-first-mantra/) - **DAZN** (`dazn`): DAZN is a sports streaming platform available in more than 200 countries and territories. Other / Sports streaming | Well known | Hammersmith and Fulham W6 7AP | founded 2015 | Companies House 09676399 | incorporated 2015-07-08 | SIC 74909 | licensed visa sponsor | London HQ | backed by Access Industries, News Corp, RedBird Capital Partners, Surj Sports Investment, Telstra, TKO Group Holdings | near Hammersmith (256 m) | https://www.dazn.com | sources: [growth](https://en.wikipedia.org/wiki/DAZN), [address](https://find-and-update.company-information.service.gov.uk/company/09676399), [presence](https://en.wikipedia.org/wiki/DAZN) - **Deliveroo** (`deliveroo`): Online food and grocery delivery marketplace connecting restaurants, shops and riders, now part of DoorDash. Other / Food Delivery | Well known | City of London EC4R 3TE | founded 2013 | raised $1.53B | last round Series H, $180M, Jan 2021 | Companies House 08167130 | incorporated 2012-08-03 | SIC 63120 | hiring 102 in London | licensed visa sponsor | London HQ | backed by Accel, Amazon, Bridgepoint, Greenoaks, Hoxton Ventures, Hummingbird Ventures, Index Ventures | near Cannon Street (221 m) | https://deliveroo.co.uk | sources: [funding](https://en.wikipedia.org/wiki/Deliveroo), [growth](https://en.wikipedia.org/wiki/Deliveroo), [address](https://www.linkedin.com/company/deliveroo), [presence](https://www.sec.gov/Archives/edgar/data/1792789/000114036125037039/ef20056500_ex99-1.htm) - **Depop** (`depop`): Peer-to-peer fashion resale app where people buy and sell secondhand clothing, now owned by eBay. Other / Resale Marketplace | Well known | Islington EC1M 3HE | founded 2011 | Companies House 08316342 | incorporated 2012-12-03 | SIC 82990 | licensed visa sponsor | London HQ | backed by General Atlantic, Balderton Capital, Creandum, HV Capital, Octopus Ventures, Red Circle Investments, TempoCap | near Farringdon (43 m) | https://www.depop.com | sources: [growth](https://en.wikipedia.org/wiki/Depop), [address](https://www.linkedin.com/company/depop), [presence](https://en.wikipedia.org/wiki/Depop) - **Diginius** (`diginius`): Diginius Insight is a software platform that pulls together digital advertising, SEO, lead and reporting data for brands and marketing agencies. Other / Marketing analytics | Up and coming | Camden NW5 1RT | founded 2011 | Companies House 07522669 | incorporated 2011-02-09 | 20 staff in filed accounts (period to 2025-03-31) | SIC 62090 | licensed visa sponsor | London HQ | on Deloitte UK Technology Fast 50 2023, #15 | near Kentish Town (384 m) | https://diginius.com/ | sources: [growth](https://prnewswire.co.uk/news-releases/diginius-a-saas-and-ecommerce-business-from-london-ranks-1st-in-the-technology-and-digital-sector-and-the-6th-fastest-growing-company-on-londons-2023-fast-growth-50-index-301987485.html), [address](https://diginius.com/), [presence](https://prnewswire.co.uk/news-releases/diginius-a-saas-and-ecommerce-business-from-london-ranks-1st-in-the-technology-and-digital-sector-and-the-6th-fastest-growing-company-on-londons-2023-fast-growth-50-index-301987485.html) - **Digital Reality Corp** (`digital-reality-corp`): Scans building interiors with LiDAR and AI to produce verified floor plans, measured surveys and digital twins for real estate (formerly Pupil). Other / Proptech | Up and coming | Westminster W1D 4AL | raised $45M | last round Strategic investment from Cushman & Wakefield, Jun 2022 | Companies House 09696838 | incorporated 2015-07-21 | 31 staff in filed accounts (period to 2025-12-31) | SIC 62090 | licensed visa sponsor | London HQ | backed by City Developments, Cushman & Wakefield, Grosvenor Group, NFC Investments | near Tottenham Court Road (167 m) | https://drc.co/ | sources: [funding](https://www.cushmanwakefield.com/en/united-kingdom/news/2022/05/pupil-and-cushman-wakefield-enter-strategic-agreement-to-deliver-digital-property-solutions), [growth](https://drc.co/), [address](https://drc.co/), [presence](https://drc.co/) - **Dotdigital** (`dotdigital`): Customer engagement platform that lets brands run email, SMS and personalised marketing campaigns from their customer data. Other / Marketing automation | Up and coming | Southwark SE1 9BG | founded 1999 | Companies House 06289659 | incorporated 2007-06-22 | SIC 82990 | London HQ | near London Bridge (90 m) | https://dotdigital.com | sources: [growth](https://shareprices.com/rns/full-year-results-prbhp4cb49qewok/), [address](https://www.dotdigital.com/contact-us/), [presence](https://shareprices.com/rns/full-year-results-prbhp4cb49qewok/) - **Duel** (`duel`): Duel is a software platform that lets consumer brands build, manage and pay communities of creators, ambassadors and customer advocates. Other / Marketing tech | Fastest growing | City of London EC3V 9AH | founded 2012 | raised $21M | last round Series A, $16M, Sep 2025 | Companies House 08318527 | incorporated 2012-12-05 | 29 staff in filed accounts (period to 2025-01-31) | SIC 62012 | licensed visa sponsor | London HQ | on Deloitte UK Technology Fast 50 2024, #43 | backed by Bright Pixel Capital, Molten Ventures, Parkwalk Advisors | near Bank (168 m) | https://www.duel.tech/ | sources: [funding](https://startupsmagazine.co.uk/article-brand-advocacy-platform-duel-raises-16m-series), [growth](https://email.sifted.eu/hubfs/Sifted%20100%20UK%20%26%20Ireland%202026%20Report.pdf), [address](https://www.duel.tech/), [presence](https://email.sifted.eu/hubfs/Sifted%20100%20UK%20%26%20Ireland%202026%20Report.pdf) - **Duffel** (`duffel`): APIs that let businesses search, book and manage flights and hotel stays inside their own products. Other / Travel APIs | Up and coming | Hackney EC2A 2DU | founded 2017 | raised $56M | last round Series B, $30M, Oct 2019 | Companies House 11188295 | incorporated 2018-02-05 | SIC 62090 | hiring 9 in London | licensed visa sponsor | work model hybrid (6 London job posts) | London HQ | Y Combinator S18 | backed by Index Ventures, Benchmark, Blossom Capital | near Liverpool Street (480 m) | https://duffel.com | sources: [funding](https://tech.eu/brief/duffel-bags-30-million-to-expand-online-travel-booking-platform), [growth](https://duffel.com), [address](https://duffel.com), [presence](https://www.ycombinator.com/companies/duffel) - **Easol** (`easol`): Booking and commerce platform for businesses that sell travel, events and experiences. Other / Experience commerce | Up and coming | Tower Hamlets E2 9BJ | raised $29.5M | last round Series A, $25M, Dec 2021 | Companies House 09245218 | incorporated 2014-10-02 | SIC 62012, 79909 | licensed visa sponsor | London HQ | Y Combinator S18 | backed by Tiger Global, FMZ Ventures, Foundation Capital, Notion Capital, Y Combinator | near Cambridge Heath (386 m) | https://easol.com | sources: [funding](https://tech.eu/brief/providing-travel-experience-creators-with-everything-they-need-londons-easol-raises-25-million-in-tiger-global-led-round/), [growth](https://tech.eu/brief/providing-travel-experience-creators-with-everything-they-need-londons-easol-raises-25-million-in-tiger-global-led-round/), [address](https://find-and-update.company-information.service.gov.uk/company/09245218), [presence](https://tech.eu/brief/providing-travel-experience-creators-with-everything-they-need-londons-easol-raises-25-million-in-tiger-global-led-round/) - **Element** (`element`): Element makes secure, self-hostable chat and collaboration apps built on the open Matrix protocol. Other / Secure messaging | Up and coming | City of London EC4R 1AG | founded 2017 | last round Series B, $30M, Jul 2021 | Companies House 10873661 | incorporated 2017-07-19 | SIC 62012 | licensed visa sponsor | London HQ | GitHub element-hq | backed by Amdocs, Automattic, Dawn Capital, firstminute capital, Metaplanet, Notion Capital, Protocol Labs, Status | near Mansion House (216 m) | https://element.io | sources: [funding](https://www.vcbacked.co/company/element), [growth](https://element.io/about), [address](https://find-and-update.company-information.service.gov.uk/company/10873661), [presence](https://app.welcometothejungle.com/jobs/bsqxz5o0) - **Endava** (`endava`): NYSE-listed software engineering and IT services firm building digital products and platforms for enterprise clients. Other / IT services | Well known | City of London EC2N 1AR | founded 2000 | Companies House 05722669 | incorporated 2006-02-27 | SIC 62020, 62090 | licensed visa sponsor | London HQ | near Bank (243 m) | https://www.endava.com | sources: [growth](https://investors.endava.com/news-events/press-releases/detail/107/endava-announces-fourth-quarter-fiscal-year-2025-fiscal-year-2025-results), [address](https://find-and-update.company-information.service.gov.uk/company/05722669), [presence](https://en.wikipedia.org/wiki/Endava) - **Fanvue** (`fanvue`): Subscription platform where creators, including AI creators, sell content and monetise fans. Other / Creator Economy | Fastest growing | Hillingdon HA4 7AE | founded 2020 | raised £23.4M (~$29.7M) | Companies House 12729677 | incorporated 2020-07-08 | 59 staff in filed accounts (period to 2025-07-31) | SIC 63120 | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2026, #29 | backed by Inner Circle | near Ruislip (564 m) | https://www.fanvue.com | sources: [funding](https://www.datocms-assets.com/60124/1774006698-sifted-100-uk-ireland-2026.pdf), [growth](https://www.datocms-assets.com/60124/1774006698-sifted-100-uk-ireland-2026.pdf), [address](https://find-and-update.company-information.service.gov.uk/company/12729677), [presence](https://find-and-update.company-information.service.gov.uk/company/12729677) - **Farfetch** (`farfetch`): Farfetch runs an online luxury fashion marketplace selling products from over 1,400 brands, boutiques and department stores. Other / Luxury marketplace | Well known | Islington EC1V 9NR | founded 2007 | Companies House 06400760 | incorporated 2007-10-16 | SIC 47910 | licensed visa sponsor | London HQ | near Old Street (56 m) | https://www.farfetch.com | sources: [growth](https://en.wikipedia.org/wiki/Farfetch), [address](https://find-and-update.company-information.service.gov.uk/company/06400760), [presence](https://en.wikipedia.org/wiki/Farfetch) - **Fresha** (`fresha`): Booking marketplace and business software for salons, spas and wellness businesses. Other / Beauty booking marketplace | Well known | Islington EC1V 9NR | founded 2015 | raised $285M | last round $80M from KKR, May 2026 | Companies House 11326509 | incorporated 2018-04-24 | SIC 62012, 63120 | licensed visa sponsor | London HQ | backed by KKR | near Old Street (56 m) | https://www.fresha.com | sources: [funding](https://techcrunch.com/2026/05/21/booking-platform-fresha-announces-80m-investment-unicorn-valuation/), [growth](https://techcrunch.com/2026/05/21/booking-platform-fresha-announces-80m-investment-unicorn-valuation/), [address](https://officesnapshots.com/2025/05/22/fresha-offices-london/), [presence](https://craft.co/fresha) - **Genius Sports** (`genius-sports`): Supplies official sports data, betting technology and data-driven advertising to sports leagues, sportsbooks and media companies. Other / Sports data | Well known | Westminster W1H 6BN | founded 2001 | Companies House 04062777 | incorporated 2000-08-31 | SIC 63110, 92000 | hiring 6 in London | licensed visa sponsor | London HQ | near Bond Street (438 m) | https://www.geniussports.com | sources: [growth](https://www.geniussports.com/about-us/), [address](https://www.geniussports.com/contact-us/), [presence](https://www.geniussports.com/contact-us/) - **givestar** (`givestar`): givestar is a fundraising platform that charities use for digital, event and contactless donations and supporter engagement. Other / Charity fundraising | Up and coming | Westminster W1H 5QL | last round Growth round, $12M, Sep 2026 | Companies House 11323235 | incorporated 2018-04-23 | 23 staff in filed accounts (period to 2025-12-31) | SIC 47990 | London HQ | backed by Mercia Ventures, Love Ventures | near Marble Arch (277 m) | https://www.givestar.io | sources: [funding](https://endurance.biz/2026/industry-news/us12m-in-funding-for-charity-tech-firm-givestar/), [growth](https://endurance.biz/2026/industry-news/us12m-in-funding-for-charity-tech-firm-givestar/), [address](https://find-and-update.company-information.service.gov.uk/company/11323235), [presence](https://endurance.biz/2026/industry-news/us12m-in-funding-for-charity-tech-firm-givestar/) - **GlobalData** (`globaldata`): GlobalData sells subscription data, analytics and AI tools that give companies intelligence on their industries and markets. Other / Data analytics | Well known | City of London EC4Y 0AN | founded 1999 | Companies House 03925319 | incorporated 2000-02-09 | SIC 63110, 70100 | licensed visa sponsor | London HQ | near Blackfriars (269 m) | https://www.globaldata.com | sources: [growth](https://investors.globaldata.com/), [address](https://www.globaldata.com/contact-us/), [presence](https://www.globaldata.com/contact-us/) - **Goodlord** (`goodlord`): Lettings software that lets estate agents, landlords and tenants handle referencing, contracts, payments and insurance online. Other / Proptech | Up and coming | Tower Hamlets E1 1EW | founded 2014 | last round £27M, led by Highland Europe, Mar 2022 | Companies House 08933499 | incorporated 2014-03-11 | SIC 62012 | licensed visa sponsor | London HQ | on Deloitte UK Technology Fast 50 2023, #48 | backed by Highland Europe, Finch Capital, Latitude, Oxx | near Aldgate East (378 m) | https://www.goodlord.com | sources: [funding](https://blog.goodlord.co/goodlord-raises-capital-to-support-future-acquisitions), [growth](https://blog.goodlord.co/goodlord-raises-capital-to-support-future-acquisitions), [address](https://www.goodlord.com/privacy-policy), [presence](https://coverager.com/goodlord-raises-27-million/) - **Goodstack** (`goodstack`): Platform for corporate giving and nonprofit verification used by brands like Google, Atlassian and Canva. Formerly Percent. Other / Corporate Giving Infrastructure | Up and coming | Westminster WC2A 2JR | founded 2017 | Companies House 09387321 | incorporated 2015-01-13 | 31 staff in filed accounts (period to 2025-04-30) | SIC 82990 | hiring 5 in London | licensed visa sponsor | work model mixed (5 London job posts) | London HQ | backed by General Catalyst, Morpheus Ventures, Repeat Ventures | near Temple (420 m) | https://www.goodstack.io | sources: [growth](https://www.goodstack.io/blog/how-goodstack-has-powered-over-usd5b-in-donations-to-nonprofits), [address](https://find-and-update.company-information.service.gov.uk/company/09387321), [presence](https://siliconcanals.com/uks-goodstack-raises-e26-5m-in-series-a/) - **Gousto** (`gousto`): Recipe box company delivering ingredients and recipes for home cooking. Other / Recipe box | Well known | Hammersmith and Fulham W14 0EE | founded 2012 | last round Funding round, Feb 2023 | Companies House 08027386 | incorporated 2012-04-12 | SIC 56290 | licensed visa sponsor | London HQ | backed by Angel CoFund, BGF, Hargreave Hale, MMC Ventures, Perwyn, Unilever Ventures | near Shepherd's Bush (228 m) | https://www.gousto.co.uk | sources: [funding](https://en.wikipedia.org/wiki/Gousto), [growth](https://en.wikipedia.org/wiki/Gousto), [address](https://find-and-update.company-information.service.gov.uk/company/08027386), [presence](https://en.wikipedia.org/wiki/Gousto) - **Gravity Sketch** (`gravity-sketch`): Immersive 3D design and collaboration tool that lets product teams sketch and review designs in VR and on desktop. Other / 3D design software | Up and coming | City of London EC4A 3TW | founded 2014 | last round Series A, $33M, Apr 2022 | Companies House 09228527 | incorporated 2014-09-22 | SIC 62011 | licensed visa sponsor | London HQ | backed by Accel, Forward Partners, GV, Kindred Capital, Point Nine | near Chancery Lane (373 m) | https://gravitysketch.com | sources: [funding](https://siliconcanals.com/accel-backs-uks-gravity-sketch/), [growth](https://siliconcanals.com/accel-backs-uks-gravity-sketch/), [address](https://gravitysketch.com/terms-conditions), [presence](https://builtinlondon.uk/company/gravity-sketch) - **hackajob** (`hackajob`): Hiring marketplace that matches companies with vetted software engineers and other tech professionals. Other / Tech recruiting | Up and coming | Hackney EC2A 3EJ | founded 2014 | last round Series B, $25M, May 2023 | Companies House 09279930 | incorporated 2014-10-24 | SIC 63120 | licensed visa sponsor | London HQ | backed by Volition Capital | near Shoreditch High Street (225 m) | https://hackajob.com | sources: [funding](https://siliconcanals.com/hackajob-raises-22-6m/), [growth](https://siliconcanals.com/hackajob-raises-22-6m/), [address](https://hackajob.com/contact-us), [presence](https://siliconcanals.com/hackajob-raises-22-6m/) - **Happl** (`happl`): Software for multinational companies to design, run and analyse employee benefits across 160+ countries. Other / HR Benefits Software | Up and coming | Camden WC2B 6AA | founded 2022 | raised $16.6M | last round Series A, $11M, 2026 | Companies House BR027015 | hiring 5 in London | licensed visa sponsor | work model hybrid (5 London job posts) | London HQ | Y Combinator W22 | on Tech Nation Upscale 2026 | backed by Portage, 6 Degrees Capital, Ascension, F Capital, Gaingels, Haatch, Pioneer Fund, Ventures Together, Y Combinator | near Holborn (57 m) | https://happl.com | sources: [funding](https://www.vestbee.com/insights/articles/top-european-funding-rounds-closed-in-may-2026), [growth](https://happl.com/blog/happl-raises-11m-series-a-to-build-the-global-benefits-operating-system), [address](https://happl.com/blog/happl-raises-11m-series-a-to-build-the-global-benefits-operating-system), [presence](https://thenextweb.com/news/happl-11m-series-a-global-benefits) - **Harbr** (`harbr`): Harbr provides a platform that lets organisations run governed data marketplaces, data exchanges and data distribution deployed in their own cloud. Other / Data sharing | Up and coming | Hackney EC2A 4DP | founded 2017 | raised $38.5M | last round Series A, $38.5M, Nov 2020 | Companies House 10671007 | London HQ | backed by Dawn Capital, Tiger Global, Backed, boldstart ventures, Crane Venture Partners, Seedcamp | near Old Street (390 m) | https://www.harbrdata.com | sources: [funding](https://techcrunch.com/2020/11/16/harbr-raises-38-5m-to-help-enterprises-exchange-and-share-big-data-troves-securely/), [growth](https://techcrunch.com/2020/11/16/harbr-raises-38-5m-to-help-enterprises-exchange-and-share-big-data-troves-securely/), [address](https://www.harbrdata.com/privacy-policy), [presence](https://www.harbrdata.com/privacy-policy) - **HiBob** (`hibob`): HR platform called Bob that helps mid-size and multinational companies manage people, payroll and performance. Other / HR Software | Well known | Westminster WC2B 4AN | founded 2015 | raised $760M | last round Late stage, $166M, Sep 2026 | Companies House 09787994 | incorporated 2015-09-22 | SIC 82990 | licensed visa sponsor | London office, HQ elsewhere | backed by Alpha Wave Global, Farallon Capital, General Atlantic, Israel Growth Partners, Salesforce, SEEK, Arbor Ventures, Battery Ventures, Bessemer Venture Partners, Eight Roads | near Covent Garden (334 m) | https://www.hibob.com | sources: [funding](https://en.wikipedia.org/wiki/HiBob), [growth](https://siliconangle.com/2026/09/01/hr-software-startup-hibob-raises-166m-after-annualized-revenue-tops-400m/), [address](https://www.hibob.com/About/), [presence](https://www.hibob.com/about/) - **Honest Mobile** (`honest-mobile`): UK mobile network selling SIM plans and a backup eSIM that connects to EE, O2, Three and Vodafone, with free roaming in 180+ countries. Other / Mobile network | Fastest growing | Lambeth SE11 5DP | founded 2019 | raised £6.8M (~$8.6M) | Companies House 11466899 | incorporated 2018-07-16 | SIC 46520, 47421, 61200 | London HQ | on Sifted 100 UK & Ireland 2026, #100; Tech Nation Upscale 2025 | backed by Ascension, DMG Ventures, The SidebySide Partnership, Wayra UK | near Kennington (424 m) | https://honestmobile.com/ | sources: [funding](https://email.sifted.eu/hubfs/Sifted%20100%20UK%20%26%20Ireland%202026%20Report.pdf), [growth](https://email.sifted.eu/hubfs/Sifted%20100%20UK%20%26%20Ireland%202026%20Report.pdf), [address](https://find-and-update.company-information.service.gov.uk/company/11466899), [presence](https://email.sifted.eu/hubfs/Sifted%20100%20UK%20%26%20Ireland%202026%20Report.pdf) - **HungryPanda** (`hungrypanda`): Food delivery app focused on Asian restaurants and groceries, operating across ten countries including the UK, US, France and Australia. Other / Food delivery | Well known | City of London WC1V 7PB | founded 2016 | raised $275M+ | last round Refinancing and fundraise led by Mars Growth Capital, $55M, Sep 2025 | Companies House 10175799 | incorporated 2016-05-12 | SIC 56290 | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2024, #77 | backed by 83North, Felix Capital, Kinnevik, Perwyn | near Chancery Lane (68 m) | https://www.hungrypanda.co | sources: [funding](https://www.liquidity.com/press-release/mars-growth-by-liquidity-and-mufg-provides-55-million-to-hungrypanda), [growth](https://find-and-update.company-information.service.gov.uk/company/10175799/filing-history/MzUzMjE3NTcyOGFkaXF6a2N4/document?format=pdf&download=0), [address](https://find-and-update.company-information.service.gov.uk/company/10175799), [presence](https://find-and-update.company-information.service.gov.uk/company/10175799/filing-history/MzUzMjE3NTcyOGFkaXF6a2N4/document?format=pdf&download=0) - **Hyperoptic** (`hyperoptic`): Hyperoptic builds and runs its own full-fibre network and sells broadband to homes and businesses in the UK. Other / Full-fibre broadband | Well known | Hammersmith and Fulham W6 7JP | founded 2011 | Companies House 07222543 | incorporated 2010-04-13 | SIC 61100 | licensed visa sponsor | London HQ | backed by Quantum Strategic Partners, KKR, Mubadala Investment Company, Newlight Partners | near Hammersmith (413 m) | https://www.hyperoptic.com | sources: [growth](https://en.wikipedia.org/wiki/Hyperoptic), [address](https://www.hyperoptic.com/contact-us/), [presence](https://en.wikipedia.org/wiki/Hyperoptic) - **ID5** (`id5`): Identity infrastructure that lets publishers, advertisers and ad tech platforms recognise users for digital advertising. Other / Ad tech identity | Up and coming | City of London EC2M 4YJ | founded 2017 | last round Series B, $20M, Apr 2024 | Companies House 10735438 | incorporated 2017-04-21 | SIC 63110 | London HQ | backed by 360 Capital, Aperiam Ventures, Axio, Progress Ventures, S4S Ventures, Seventure Partners, TransUnion | near Aldgate (338 m) | https://id5.io | sources: [funding](https://id5.io/news/id5-announce-20-million-in-series-b-funding), [growth](https://id5.io/news/id5-announce-20-million-in-series-b-funding), [address](https://id5.io/privacy-policy), [presence](https://id5.io/contact) - **incident.io** (`incident-io`): Incident management, on-call and status page platform with AI agents that help teams resolve outages. Other / Incident management | Fastest growing | Islington EC1V 9NR | founded 2021 | raised $96M | last round Series B, $62M, Apr 2025 | Companies House 13093357 | incorporated 2020-12-21 | 73 staff in filed accounts (period to 2025-12-31) | SIC 62012 | licensed visa sponsor | London HQ | backed by Insight Partners, Index Ventures, Point Nine | near Old Street (56 m) | https://incident.io | sources: [funding](https://incident.io/blog/incident.io-raises-62m), [growth](https://incident.io/blog/incident.io-raises-62m), [address](https://incident.io/legal/data-processing-addendum), [presence](https://www.startuphub.ai/startups/incident-io) - **Inforcer** (`inforcer`): Platform that lets managed service providers manage, secure and monitor Microsoft 365 across many client tenants. Other / MSP Security Software | Fastest growing | Richmond upon Thames TW9 2SE | founded 2022 | raised $110M | last round Series C, Jul 2026 | Companies House 14146319 | incorporated 2022-06-01 | 53 staff in filed accounts (period to 2025-12-31) | SIC 62012 | licensed visa sponsor | London HQ | backed by Insight Partners, Dawn Capital, Meritech Capital | near Richmond (175 m) | https://www.inforcer.com | sources: [funding](https://dealroom.co/news/142144-inforcer-raises-50m-series-c-led-by-insight-partners-to-arm-msps-against/), [growth](https://dealroom.co/news/142144-inforcer-raises-50m-series-c-led-by-insight-partners-to-arm-msps-against/), [address](https://find-and-update.company-information.service.gov.uk/company/14146319), [presence](https://www.inforcer.com) - **Intruder** (`intruder`): Cloud vulnerability management platform that continuously scans internet-facing systems and prioritises the security weaknesses teams should fix first. Other / Cybersecurity | Up and coming | Hackney EC2A 4EG | founded 2015 | Companies House 09529593 | incorporated 2015-04-08 | 44 staff in filed accounts (period to 2025-12-31) | SIC 80200 | licensed visa sponsor | London HQ | GitHub intruder-io | on Deloitte UK Technology Fast 50 2023, #38 | near Old Street (450 m) | https://www.intruder.io | sources: [growth](https://www.intruder.io/about), [address](https://www.intruder.io/contact), [presence](https://www.intruder.io/careers) - **iProov** (`iproov`): iProov provides face biometric verification that checks a person is real and present when they log in or onboard online. Other / Biometric identity | Up and coming | Westminster SW1Y 6HR | founded 2011 | last round Growth, $70M, Jan 2022 | Companies House 07866563 | incorporated 2011-11-30 | SIC 61200, 62020, 63990 | licensed visa sponsor | London HQ | backed by JRJ Group, Startupbootcamp, Sumeru Equity Partners | near Piccadilly Circus (168 m) | https://www.iproov.com | sources: [funding](https://tech.eu/2022/01/06/facial-biometric-authentication-provider-iproov-scans-70-million-in-new-capital), [growth](https://tech.eu/2022/01/06/facial-biometric-authentication-provider-iproov-scans-70-million-in-new-capital), [address](https://find-and-update.company-information.service.gov.uk/company/07866563), [presence](https://tech.eu/2022/01/06/facial-biometric-authentication-provider-iproov-scans-70-million-in-new-capital) - **ITRS Group** (`itrs-group`): ITRS sells real-time IT monitoring and observability software, mainly to financial services firms. Other / IT observability | Well known | Islington EC2A 4DN | founded 1997 | Companies House 02873731 | incorporated 1993-11-19 | SIC 62090 | licensed visa sponsor | London HQ | backed by Montagu Private Equity, TA Associates | near Old Street (415 m) | https://www.itrsgroup.com | sources: [growth](https://www.reveliolabs.com/companies/itrs-group/employees/), [address](https://www.itrsgroup.com/contact-us), [presence](https://www.itrsgroup.com/contact-us) - **Journee** (`journee`): Surprise-trip platform that matches travellers to a booked itinerary of flights, stays and activities, revealing the destination at the airport. Other / Travel tech | Fastest growing | Tower Hamlets E2 6GG | founded 2019 | last round Seed, £1.75M, Jun 2022 | Companies House 11581103 | incorporated 2018-09-21 | 12 staff in filed accounts (period to 2025-09-30) | SIC 96090 | licensed visa sponsor | London HQ | on Deloitte UK Technology Fast 50 2025, #1 | backed by Fuel Ventures | near Bethnal Green (Weaver) (206 m) | https://www.journeetrips.com | sources: [funding](https://www.travolution.com/news/mystery-destination-start-up-journee-backed-by-depop-founder-in-1.75m-raise/), [growth](https://www.deloitte.co.uk/fast50/winners/2025/winner-profiles/journee/), [address](https://find-and-update.company-information.service.gov.uk/company/11581103), [presence](https://www.deloitte.co.uk/fast50/winners/2025/winner-profiles/journee/) - **Kitt** (`kitt`): Kitt provides managed offices in London, handling the space, fit-out, maintenance and facilities under one contract and monthly invoice. Other / Proptech | Up and coming | Islington EC1R 0HA | founded 2018 | last round Seed extension, €7.3M, Jun 2023 | Companies House 11349572 | hiring 3 in London | licensed visa sponsor | work model mixed (3 London job posts) | London HQ | backed by Barclays Ventures, Hoxton Ventures | near Farringdon (422 m) | https://kittoffices.com | sources: [funding](https://funding.tech.eu/companies/6E49C9F0-5908-4181-AC8B-4838EB76919E), [growth](https://kittoffices.com), [address](https://kittoffices.com), [presence](https://kittoffices.com) - **LandTech** (`landtech`): LandInsight software that pulls together land registry, planning and other property data so developers can find and assess development sites. Other / Proptech | Up and coming | Hackney EC2A 2AP | last round Series A, £42M, Oct 2021 | Companies House 08845300 | incorporated 2014-01-14 | SIC 62012 | licensed visa sponsor | London HQ | backed by Updata Partners | near Liverpool Street (430 m) | https://land.tech | sources: [funding](https://updata.com/updata-leads-investment-into-landtech/), [growth](https://land.tech/), [address](https://land.tech/contact), [presence](https://land.tech/about) - **Learnerbly** (`learnerbly`): Platform where employees spend company learning budgets on courses and coaching from 100+ providers, with retraining-based outplacement for departing staff. Other / Workplace learning | Up and coming | City of London EC4M 7AU | founded 2016 | raised £18.5M (~$23.5M) | Companies House 06815520 | incorporated 2009-02-10 | 19 staff in filed accounts (period to 2025-02-28) | SIC 62090 | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2024, #54 | backed by Beringea, BY Venture Partners, Digital Horizon Ventures, FJ Labs, Frontline Ventures, GO Ventures, London Co-Investment Fund, Triple Point, UFI Ventures | near St. Paul's (342 m) | https://www.learnerbly.com/ | sources: [funding](https://content.sifted.eu/wp-content/uploads/2024/04/11080007/Sifted-100-UK-Ireland.pdf), [growth](https://content.sifted.eu/wp-content/uploads/2024/04/11080007/Sifted-100-UK-Ireland.pdf), [address](https://www.learnerbly.com/), [presence](https://www.learnerbly.com/) - **Learning Technologies Group** (`learning-technologies-group`): LTG provides digital learning and talent management software and services to large organisations through businesses including GP Strategies and Open LMS. Other / Workplace learning | Well known | City of London EC4A 3BF | Companies House 07176993 | incorporated 2010-03-03 | SIC 74909 | licensed visa sponsor | London HQ | near Chancery Lane (340 m) | https://ltgplc.com | sources: [growth](https://www.investmentmonitor.ai/news/general-atlantic-to-acquire-ltg-for-1bn), [address](https://ltgplc.com/contact/), [presence](https://ltgplc.com/contact/) - **loveholidays** (`loveholidays`): Online travel agency selling package holidays to UK customers. Other / Travel tech | Well known | Hammersmith and Fulham W6 8DA | founded 2012 | Companies House 07839224 | incorporated 2011-11-08 | SIC 79110 | London HQ | backed by Livingbridge | near Hammersmith (273 m) | https://www.loveholidays.com | sources: [growth](https://www.cityam.com/?p=2245150), [address](https://find-and-update.company-information.service.gov.uk/company/07839224), [presence](https://builtinlondon.uk/company/loveholidays/jobs) - **Lyst** (`lyst`): Global fashion shopping platform that lets shoppers search and buy products from thousands of brands and retailers in one place. Other / Fashion marketplace | Up and coming | City of London EC3R 7AG | Companies House 07132083 | incorporated 2010-01-21 | SIC 62090 | licensed visa sponsor | London HQ | backed by LVMH, Accel, Balderton Capital, Groupe Arnault | near Monument (318 m) | https://www.lyst.com | sources: [growth](https://www.lyst.co.uk/news/lyst-zozo/), [address](https://find-and-update.company-information.service.gov.uk/company/07132083), [presence](https://www.lyst.co.uk/news/lyst-zozo/) - **Mention Me** (`mention-me`): Referral and customer advocacy platform that lets brands run refer-a-friend programmes and track the customers they bring in. Other / Referral marketing | Up and coming | Lambeth SE11 5JH | founded 2013 | raised $32M | last round Series B, $25M, Jan 2022 | Companies House 08382730 | incorporated 2013-01-31 | SIC 62012 | licensed visa sponsor | London HQ | backed by Eight Roads, Octopus Ventures | near Vauxhall (346 m) | https://mention-me.com | sources: [funding](https://www.mention-me.com/about-us), [growth](https://www.mention-me.com/about-us), [address](https://www.mention-me.com/privacy-policy), [presence](https://www.mention-me.com/blog/martech-secures-25m-series-b-funding) - **Mimecast** (`mimecast`): Mimecast sells email security and human risk management software to organisations. Other / Email security | Well known | City of London EC2M 2PF | founded 2003 | Companies House 04698693 | incorporated 2003-03-14 | SIC 62020 | London HQ | near Liverpool Street (201 m) | https://www.mimecast.com | sources: [growth](https://www.mimecast.com/company/), [address](https://find-and-update.company-information.service.gov.uk/company/04698693), [presence](https://www.mimecast.com/company/) - **MishiPay** (`mishipay`): Self-checkout kiosks, mobile POS and scan-and-go apps that let shoppers pay without queuing in physical stores. Other / Retail checkout | Up and coming | Camden WC2B 6NH | founded 2015 | raised £13.5M (~$17.1M) | Companies House 09717666 | incorporated 2015-08-04 | 6 staff in filed accounts (period to 2025-03-31) | SIC 62012 | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2024, #69 | backed by Nauta Capital | near Holborn (38 m) | https://mishipay.com/ | sources: [funding](https://content.sifted.eu/wp-content/uploads/2024/04/11080007/Sifted-100-UK-Ireland.pdf), [growth](https://mishipay.com/), [address](https://mishipay.com/contact-us), [presence](https://mishipay.com/contact-us) - **Moonpig** (`moonpig`): Online platform for personalised greeting cards and gifts, operating the Moonpig and Greetz brands. Other / E-commerce | Well known | Camden EC1R 5EN | Companies House 13096622 | incorporated 2020-12-23 | SIC 70100 | London HQ | near Farringdon (395 m) | https://www.moonpig.com | sources: [growth](https://www.moonpig.group/), [address](https://find-and-update.company-information.service.gov.uk/company/13096622), [presence](https://find-and-update.company-information.service.gov.uk/company/13096622) - **Motorway** (`motorway`): Online marketplace where private sellers list cars and verified dealers bid to buy them. Other / Used car marketplace | Well known | Westminster W1T 3HE | founded 2017 | raised $273M+ | last round Series C, $190M, Nov 2021 | Companies House 10285711 | incorporated 2016-07-19 | 399 staff in filed accounts (period to 2025-12-31) | SIC 62090, 70229 | licensed visa sponsor | London HQ | backed by ICONIQ, Index Ventures, BMW i Ventures, Latitude, Unbound | near Goodge Street (377 m) | https://motorway.co.uk | sources: [funding](https://motorway.co.uk/blog/2021/11/29/series-c-funding-round), [growth](https://motorway.co.uk/blog/2021/11/29/series-c-funding-round), [address](https://motorway.co.uk/), [presence](https://en.wikipedia.org/wiki/Motorway_(brand)) - **MUBI** (`mubi`): MUBI is a curated film streaming service that also produces and distributes films. Other / Film streaming | Well known | Westminster W1S 2XF | founded 2007 | last round Sequoia Capital, $100M, May 2025 | Companies House 07385593 | incorporated 2010-09-23 | 173 staff in filed accounts (period to 2025-12-31) | SIC 59131, 62090, 93290 | licensed visa sponsor | London HQ | backed by Sequoia Capital | near Oxford Circus (264 m) | https://mubi.com | sources: [growth](https://en.wikipedia.org/wiki/Mubi_(streaming_service)), [address](https://find-and-update.company-information.service.gov.uk/company/07385593), [presence](https://en.wikipedia.org/wiki/Mubi_(streaming_service)) - **Multiverse** (`multiverse`): Apprenticeship and upskilling programmes that train employees in tech, data and AI skills. Other / Workforce upskilling | Well known | Westminster W2 6LG | founded 2016 | raised $420M+ | last round $70M, early 2026 | Companies House 10027474 | incorporated 2016-02-25 | SIC 62090, 78109, 78300, 85320 | licensed visa sponsor | London HQ | on Deloitte UK Technology Fast 50 2023, #37 | backed by BOND, D1 Capital Partners, Founders Circle Capital, General Catalyst, Lightspeed Venture Partners, StepStone Group | near Paddington (153 m) | https://www.multiverse.io | sources: [funding](https://en.wikipedia.org/wiki/Multiverse_(company)), [growth](https://en.wikipedia.org/wiki/Multiverse_(company)), [address](https://www.multiverse.io/en-GB), [presence](https://en.wikipedia.org/wiki/Multiverse_(company)) - **Muzz** (`muzz`): Dating and marriage app for Muslims, connecting single Muslims worldwide. Other / Consumer apps | Up and coming | Redbridge IG1 4TG | founded 2015 | Companies House 09376746 | incorporated 2015-01-07 | 82 staff in filed accounts (period to 2026-01-31) | SIC 63120 | licensed visa sponsor | London HQ | Y Combinator S17 | backed by Y Combinator | near Ilford (610 m) | https://muzz.com | sources: [growth](https://muzz.com/en-GB/careers/), [address](https://muzz.com/en-GB/terms/), [presence](https://muzz.com/en-GB/careers/) - **MyEdSpace** (`myedspace`): Online platform offering live, interactive lessons from expert teachers for UK school students, with recordings, workbooks and homework. Other / Edtech | Up and coming | Camden EC1N 2SW | founded 2022 | last round Series A, $15M, Sep 2025 | Companies House 13805946 | incorporated 2021-12-17 | SIC 85590, 85600 | hiring 1 in London | licensed visa sponsor | London HQ | backed by White Star Capital, Active Partners, Coalition Capital, Educapital, Emerge | near Chancery Lane (97 m) | https://myedspace.co.uk | sources: [funding](https://tech.eu/2025/09/29/myedspace-secures-15m-to-expand-world-class-education/), [growth](https://tech.eu/2025/09/29/myedspace-secures-15m-to-expand-world-class-education/), [address](https://myedspace.co.uk/contact-us), [presence](https://tech.eu/2025/09/29/myedspace-secures-15m-to-expand-world-class-education/) - **Nivoda** (`nivoda`): B2B marketplace connecting diamond and gemstone suppliers with jewellery retailers worldwide. Other / B2B Jewellery Marketplace | Fastest growing | Camden EC1N 8NX | founded 2017 | last round Series C, $51M, Nov 2024 | Companies House 10736332 | incorporated 2017-04-24 | SIC 46480 | hiring 6 in London | work model remote (6 London job posts) | London HQ | backed by Avenir Growth Capital, Northzone | near Chancery Lane (245 m) | https://nivoda.com | sources: [funding](https://www.nationaljeweler.com/articles/13444-nivoda-secures-additional-funding), [growth](https://www.nationaljeweler.com/articles/13444-nivoda-secures-additional-funding), [address](https://portfolio.joinef.com/companies/nivoda/jobs/89771825-junior-fulfilment-executive-london), [presence](https://builtinlondon.uk/company/nivoda) - **Northflank** (`northflank`): Developer platform that deploys apps, databases and AI sandboxes on Kubernetes in any cloud. Other / Developer Platform | Up and coming | Hackney N1 7GU | founded 2019 | Companies House 11918540 | incorporated 2019-04-01 | 8 staff in filed accounts (period to 2025-04-30) | SIC 58210, 62012, 63110, 71122 | licensed visa sponsor | London HQ | backed by Bain Capital Ventures, Kindred Ventures, Pebblebed, Tapestry VC, Uncorrelated Ventures, Vertex Ventures | near Old Street (645 m) | https://northflank.com | sources: [growth](https://www.wiz.io/customers/northflank), [address](https://find-and-update.company-information.service.gov.uk/company/11918540), [presence](https://www.linkedin.com/company/northflank) - **Nothing** (`nothing`): Consumer electronics maker of smartphones, earbuds and headphones, founded by Carl Pei. Other / Consumer electronics | Well known | Camden WC1X 8BH | founded 2020 | raised $420M+ | last round Series C, $200M, Sep 2025 | Companies House 12984564 | incorporated 2020-10-29 | SIC 47430 | hiring 5 in London | licensed visa sponsor | London HQ | backed by Highland Europe, Tiger Global, EQT Ventures, GV | near King's Cross & St Pancras International (279 m) | https://nothing.tech | sources: [funding](https://en.wikipedia.org/wiki/Nothing_(company)), [growth](https://en.wikipedia.org/wiki/Nothing_(company)), [address](https://find-and-update.company-information.service.gov.uk/company/12984564), [presence](https://www.thenewsminute.com/atom/oneplus-co-founder-s-firm-nothing-raises-15-mn-alphabet-led-round-143125) - **Ogury** (`ogury`): Advertising platform that targets and measures campaigns using anonymised audience personas instead of tracking individual users. Other / Ad tech | Well known | Islington EC1V 9BP | founded 2014 | Companies House 08904951 | incorporated 2014-02-20 | SIC 73120 | licensed visa sponsor | London HQ | backed by Idinvest Partners | near Old Street (185 m) | https://ogury.com | sources: [growth](https://ogury.com/careers/), [address](https://find-and-update.company-information.service.gov.uk/company/08904951), [presence](https://builtinlondon.uk/company/ogury-0) - **Ometria** (`ometria`): Customer data and marketing platform for retail brands that personalises messages across email, SMS, ads and other channels. Other / Retail marketing | Up and coming | Camden NW1 3ER | founded 2013 | raised $75M | last round Series C, $40M, Nov 2021 | Companies House 08372083 | incorporated 2013-01-23 | 101 staff in filed accounts (period to 2025-12-31) | SIC 62012 | London HQ | backed by InfraVia Growth Capital, Adjuvo, Octopus Ventures, Sonae IM, Summit Action | near Warren Street (237 m) | https://ometria.com | sources: [funding](https://tech.eu/2021/11/12/londons-customer-data-and-marketing-platform-ometria-raises-40-million/), [growth](https://tech.eu/2021/11/12/londons-customer-data-and-marketing-platform-ometria-raises-40-million/), [address](https://ometria.com/privacy-policy), [presence](https://ometria.com/about) - **Perlego** (`perlego`): Subscription digital library giving students and professionals access to over 1.5 million academic and professional ebooks. Other / Digital Library | Fastest growing | Camden EC1N 2ST | founded 2016 | last round $20M, Oct 2024 | Companies House 10155026 | incorporated 2016-04-29 | SIC 47910 | licensed visa sponsor | London HQ | Founders Factory | on Sifted 100 UK & Ireland 2024, #39; Tech Nation Future Fifty 2024; Deloitte UK Technology Fast 50 2023, #12 | backed by Accelerated Digital Ventures, Dedicated VC, Mediahuis Ventures | near Chancery Lane (143 m) | https://www.perlego.com | sources: [funding](https://en.wikipedia.org/wiki/Perlego), [growth](https://www.fast50.co.uk/fast50/winners/2023/), [address](https://www.perlego.com/), [presence](https://en.wikipedia.org/wiki/Perlego) - **Permutive** (`permutive`): Privacy-first audience data platform that lets publishers and advertisers target ads without third-party cookies. Other / Privacy Adtech | Up and coming | Islington EC1M 7AN | founded 2014 | raised $105M | last round Series C, $75M, Nov 2021 | Companies House 08738815 | incorporated 2013-10-18 | SIC 62012 | licensed visa sponsor | London HQ | GitHub permutive | Y Combinator S14 | backed by SoftBank Vision Fund | near Barbican (290 m) | https://permutive.com | sources: [funding](https://adexchanger.com/publishers/permutive-raises-75m-as-it-counts-down-the-end-of-third-party-cookies), [growth](https://adexchanger.com/publishers/permutive-raises-75m-as-it-counts-down-the-end-of-third-party-cookies), [address](https://permutive.com/company/careers/), [presence](https://permutive.com/about) - **Playstack** (`playstack`): Publishes indie video games, including Balatro and Abiotic Factor, across PC, console and mobile. Other / Games publishing | Fastest growing | Westminster W1F 7NN | founded 2016 | Companies House 10168633 | incorporated 2016-05-07 | SIC 58210 | licensed visa sponsor | London HQ | near Oxford Circus (381 m) | https://www.playstack.com/ | sources: [funding](https://investegate.co.uk/announcement/rns/trufin--tru/final-results-for-the-12-months-ended-31-dec-2024/8797114), [growth](https://www.stockopedia.com/share-prices/trufin-LON:TRU/news/final-results-for-the-12-months-ended-31-dec-2025-019e6a15-c631-7ea9-ad48-f828a651d292/), [address](https://www.playstack.com/contact/), [presence](https://www.playstack.com/contact/) - **Plentific** (`plentific`): Property operations software for landlords and housing providers to manage repairs, contractors and compliance. Other / Proptech | Fastest growing | City of London EC4N 5AT | founded 2013 | raised $140M | last round Series C, $100M, Aug 2021 | Companies House 08275972 | incorporated 2012-10-31 | SIC 74909 | hiring 11 in London | licensed visa sponsor | work model hybrid (11 London job posts) | London HQ | backed by Brookfield Technology Partners, Highland Europe, A/O PropTech, Mubadala Investment Company, RXR Digital Ventures, Target Global | near Cannon Street (107 m) | https://www.plentific.com | sources: [funding](https://techcrunch.com/2021/08/24/plentific-cements-100m-to-expand-its-property-management-saas/), [growth](https://www.plentific.com/resource-center/newsroom/), [address](https://jobs.ashbyhq.com/plentific), [presence](https://austria.dealroom.co/companies/plentific) - **Plum Guide** (`plum-guide`): Plum Guide is an online booking platform for holiday rental homes that it vets and curates before listing. Other / Travel marketplace | Up and coming | Camden W1T 7NF | founded 2015 | raised £41.5M (~$52.7M) | Companies House 09811319 | incorporated 2015-10-06 | SIC 62012, 79909 | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2024, #25 | backed by Beringea, Hearst Ventures, Latitude, Talis Capital | near Warren Street (123 m) | https://www.plumguide.com/ | sources: [funding](https://content.sifted.eu/wp-content/uploads/2024/04/11080007/Sifted-100-UK-Ireland.pdf), [growth](https://content.sifted.eu/wp-content/uploads/2024/04/11080007/Sifted-100-UK-Ireland.pdf), [address](https://www.plumguide.com/privacy-policy), [presence](https://www.plumguide.com/privacy-policy) - **proSapient** (`prosapient`): Tech-led expert network and primary research platform connecting investors and consultants with industry experts. Other / Expert Network | Up and coming | City of London EC2M 4YE | founded 2017 | last round Series A, $10M | Companies House 10704431 | incorporated 2017-04-03 | 126 staff in filed accounts (period to 2025-12-31) | SIC 73200 | hiring 9 in London | licensed visa sponsor | work model hybrid (9 London job posts) | London HQ | on Tech Nation Future Fifty 2025; Sifted 100 UK & Ireland 2024, #65 | backed by Smedvig Capital | near Aldgate (272 m) | https://www.prosapient.com | sources: [funding](https://www.prosapient.com/about), [growth](https://technation.io/future-fifty-2025-cohort-2/), [address](https://www.prosapient.com/about), [presence](https://www.cbinsights.com/company/prosapient) - **Pydantic** (`pydantic`): Company behind the Pydantic Python validation library, the Pydantic AI agent framework and Logfire observability. Other / Python developer tools | Up and coming | Wandsworth SW8 5EL | founded 2022 | raised $17.2M | last round Series A, $12.5M, Oct 2024 | Companies House 14554427 | incorporated 2022-12-22 | 3 staff in filed accounts (period to 2025-12-31) | SIC 63110 | London HQ | GitHub pydantic | backed by Sequoia Capital, Irregular Expressions, Partech | near Nine Elms (292 m) | https://pydantic.dev | sources: [funding](https://techcrunch.com/2024/10/01/sequoia-backs-pydantic-to-expand-beyond-its-open-source-data-validation-framework/), [growth](https://techcrunch.com/2024/10/01/sequoia-backs-pydantic-to-expand-beyond-its-open-source-data-validation-framework/), [address](https://find-and-update.company-information.service.gov.uk/company/14554427), [presence](https://pydantic.dev/about) - **Qogita** (`qogita`): B2B wholesale marketplace for branded health and beauty products across Europe. Other / B2B Wholesale Marketplace | Up and coming | City of London EC2R 8EJ | founded 2021 | raised $88.1M | last round Series B, Dec 2023 | Companies House 13207678 | incorporated 2021-02-17 | SIC 46450 | licensed visa sponsor | London HQ | backed by Accel, Bessemer Venture Partners, Dawn Capital, Jibe Ventures, LocalGlobe | near Bank (137 m) | https://www.qogita.com | sources: [funding](https://www.vcbacked.co/company/qogita), [growth](https://www.qogita.com/careers/), [address](https://www.qogita.com/), [presence](https://dawncapital.com/?p=4211) - **Ravio** (`ravio`): Compensation benchmarking and pay management platform using real-time salary data shared by European tech companies. Other / Compensation Data | Up and coming | Camden WC2H 9JQ | founded 2022 | last round Series A, $12M, May 2025 | Companies House 13864162 | incorporated 2022-01-21 | 37 staff in filed accounts (period to 2024-12-31) | SIC 62012 | licensed visa sponsor | London HQ | backed by Spark Capital, Blackbird, Cherry Ventures | near Covent Garden (208 m) | https://ravio.com | sources: [funding](https://tech.eu/2025/05/09/ravio-secures-12m-to-improve-the-quality-of-compensation-data/), [growth](https://tech.eu/2025/05/09/ravio-secures-12m-to-improve-the-quality-of-compensation-data/), [address](https://find-and-update.company-information.service.gov.uk/company/13864162), [presence](https://find-and-update.company-information.service.gov.uk/company/13864162) - **Reapit** (`reapit`): Software for estate and letting agencies, covering sales CRM, lettings, property management, client accounts and consumer engagement tools. Other / Proptech | Fastest growing | Camden EC1N 8QX | founded 1997 | last round Growth equity, £20M+ (about $27M), Sep 2026 | Companies House 03483017 | incorporated 1997-12-18 | SIC 62012, 62090 | hiring 2 in London | licensed visa sponsor | work model hybrid (2 London job posts) | London HQ | backed by Accel-KKR | near Farringdon (234 m) | https://www.reapit.com | sources: [funding](https://dealroom.co/news/148065-reapit-lands-20m-from-accel-kkr-to-boost-ai-and-platform/), [growth](https://dealroom.co/news/148065-reapit-lands-20m-from-accel-kkr-to-boost-ai-and-platform/), [address](https://www.reapit.com/company/contact), [presence](https://www.reapit.com/company/about) - **Red Sift** (`red-sift`): Cybersecurity platform for email authentication (DMARC, BIMI), brand impersonation and certificate protection. Other / Email Security | Up and coming | Westminster W1F 8GR | founded 2015 | raised $69.8M | last round Growth, $54M, Feb 2022 | Companies House 09240956 | incorporated 2014-09-30 | SIC 62012 | licensed visa sponsor | London HQ | GitHub redsift | on Tech Nation Future Fifty 2026 | backed by Highland Europe, MMC Ventures, Oxford Capital, Sands Capital | near Tottenham Court Road (390 m) | https://redsift.com | sources: [funding](https://www.cityam.com/?p=1844190), [growth](https://businesscloud.co.uk/news/tech-nation-unveils-future-fifty-2026-cohort-at-downing-st/), [address](https://www.linkedin.com/company/red-sift), [presence](https://channelweb.co.uk/news/4045573/london-cybersecurity-company-redsift-raises-usd54m-fund-global-expansion) - **Relay** (`relay`): Runs a hyperlocal last-mile parcel delivery network for e-commerce retailers such as ASOS and Vinted. Other / Parcel Delivery | Fastest growing | Hackney E1 6HU | founded 2022 | raised €43.1M (~$46.5M) | last round Series A, $35M, Feb 2025 | Companies House 13910522 | incorporated 2022-02-11 | 60 staff in filed accounts (period to 2025-02-28) | SIC 49410 | licensed visa sponsor | London HQ | backed by Plural, Project A Ventures, Prologis Ventures | near Shoreditch High Street (195 m) | https://www.relaytech.co | sources: [funding](https://www.vestbee.com/insights/articles/top-european-funding-rounds-closed-in-february-2025), [growth](https://www.relaytech.co/careers), [address](https://www.foraspace.com/london-workspaces/montacute-yards), [presence](https://siliconcanals.com/uks-relay-raises-33-4m/) - **Risk Ledger** (`risk-ledger`): Network where suppliers share one live security assessment with all their customers to manage supply chain cyber risk. Other / Supply Chain Security | Fastest growing | Islington EC1V 9BW | founded 2017 | Companies House 10831970 | incorporated 2017-06-22 | 53 staff in filed accounts (period to 2025-06-30) | SIC 62020, 62090 | hiring 4 in London | licensed visa sponsor | London HQ | GitHub riskledger | on Deloitte UK Technology Fast 50 2025, #30 | backed by Axiom Equity, Mercia Ventures | near Old Street (243 m) | https://riskledger.com | sources: [growth](https://itbrief.co.uk/story/risk-ledger-raises-usd-32-million-to-expand-in-us), [address](https://riskledger.com/contact), [presence](https://riskledger.com) - **RVU** (`rvu`): RVU runs consumer comparison and switching brands including Uswitch, Confused.com, Tempcover, Money.co.uk and Mojo Mortgages on a shared data platform. Other / Price comparison | Well known | Southwark SE1 2LH | founded 2018 | Companies House 11632556 | incorporated 2018-10-19 | SIC 74990 | London HQ | near Tower Hill (722 m) | https://www.rvu.co.uk | sources: [growth](https://www.rvu.co.uk/), [address](https://find-and-update.company-information.service.gov.uk/company/11632556), [presence](https://www.uswitch.com/) - **Seat Unique** (`seat-unique`): Premium ticketing, hospitality and travel platform for sport, music and culture events across the UK and Europe. Other / Premium Ticketing | Fastest growing | Westminster SW1P 1PL | founded 2018 | last round £20M, Jun 2026 | Companies House 11313999 | incorporated 2018-04-17 | SIC 47910 | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2024, #4; Deloitte UK Technology Fast 50 2024, #5 | backed by Nickleby Capital, Active Partners, Hearst Ventures, Pentland Ventures, The Players Fund | near St. James's Park (423 m) | https://www.seatunique.com | sources: [growth](https://www.seatunique.com/blog/seat-unique-raises-20m/), [address](https://www.linkedin.com/company/seat-unique), [presence](https://www.seatunique.com/about) - **Seatfrog** (`seatfrog`): Seatfrog is an app for buying train tickets, bidding on first class upgrades and changing train times with partner rail operators. Other / Travel tech | Up and coming | Islington EC2A 4NJ | raised $7.4M | last round Growth round, £6M, Apr 2023 | Companies House 10784220 | incorporated 2017-05-23 | SIC 62012 | licensed visa sponsor | London HQ | on Deloitte UK Technology Fast 50 2024, #45 | backed by Beyond Capital, HOWZAT Partners, Octopus Ventures, Pembroke, Praetura Ventures | near Old Street (301 m) | https://seatfrog.com/ | sources: [funding](https://www.vcbacked.co/company/seatfrog), [growth](https://www.railway-technology.com/news/seatfrog-secures-6m-investment/), [address](https://seatfrog.com/terms), [presence](https://www.vcbacked.co/company/seatfrog) - **Secret Escapes** (`secret-escapes`): Secret Escapes is a members only travel club selling discounted hand picked hotel stays and holidays. Other / Online travel | Up and coming | Camden WC2B 6AA | Companies House 07026107 | incorporated 2009-09-22 | SIC 79110 | licensed visa sponsor | London HQ | backed by Temasek, Idinvest Partners | near Holborn (57 m) | https://www.secretescapes.com | sources: [growth](https://find-and-update.company-information.service.gov.uk/company/07026107/filing-history), [address](https://find-and-update.company-information.service.gov.uk/company/07026107), [presence](https://find-and-update.company-information.service.gov.uk/company/07026107) - **SecureFlag** (`secureflag`): Developer security platform offering hands-on secure coding training and threat modelling for enterprise engineering teams. Other / Application Security | Up and coming | Tower Hamlets E1 1DU | founded 2019 | Companies House 12368322 | incorporated 2019-12-17 | SIC 62012, 62020 | licensed visa sponsor | London HQ | on Deloitte UK Technology Fast 50 2025, #28 | backed by Copilot Capital | near Aldgate East (354 m) | https://www.secureflag.com | sources: [growth](https://www.fast50.co.uk/fast50/winners/2025/), [address](https://www.secureflag.com/about-us/), [presence](https://www.secureflag.com/about-us/) - **SenseOn** (`senseon`): Security platform that links alerts across a customer's existing tools into cases, with AI triage and a managed 24/7 SOC under human oversight. Other / Cybersecurity | Up and coming | Westminster SW1Y 4JU | founded 2017 | last round Series A, $20M, Sep 2021 | Companies House 11032394 | incorporated 2017-10-25 | 49 staff in filed accounts (period to 2025-12-31) | SIC 62012 | licensed visa sponsor | London HQ | backed by Eight Roads, Crane Venture Partners, MMC Ventures, Winton Ventures | near Piccadilly Circus (226 m) | https://senseon.io | sources: [funding](https://www.helpnetsecurity.com/2021/09/29/senseon-funding/), [growth](https://www.helpnetsecurity.com/2021/09/29/senseon-funding/), [address](https://www.senseon.io/privacy), [presence](https://av-comparatives.org/vendors/senseon/) - **Sessions** (`sessions`): Platform that turns food brands into national franchises through a network of 400+ delivery kitchens and high street restaurants, providing the systems, support and distribution to scale them. Other / Food tech | Fastest growing | Westminster SW1W 0AU | founded 2019 | raised £18.3M (~$23.2M) | Companies House 11788160 | incorporated 2019-01-25 | SIC 56290, 62012 | hiring 4 in London | licensed visa sponsor | work model hybrid (4 London job posts) | London HQ | on Sifted 100 UK & Ireland 2026, #65; Tech Nation Upscale 2025 | backed by Guinness Asset Management, Imbiba, Perscitus | near Victoria (131 m) | https://sessions.co.uk | sources: [funding](https://www.datocms-assets.com/60124/1774006698-sifted-100-uk-ireland-2026.pdf), [growth](https://www.datocms-assets.com/60124/1774006698-sifted-100-uk-ireland-2026.pdf), [address](https://sessions.co.uk/contact-us/), [presence](https://sessions.co.uk/contact-us/) - **Shop Circle** (`shop-circle`): Acquires and operates B2B software tools for ecommerce merchants, adding AI features across its portfolio. Other / Commerce Software | Fastest growing | Westminster W2 6BD | founded 2021 | last round Series B extension, $60M equity, Sep 2025 | Companies House 13338218 | incorporated 2021-04-15 | SIC 62012 | licensed visa sponsor | London HQ | on Tech Nation Future Fifty 2025 | backed by Nextalia Ventures, 645 Select Fund, CDP Venture Capital, FG2 Capital, FNDX, Primo Capital | near Paddington (451 m) | https://shopcircle.co | sources: [growth](https://siliconcanals.com/shop-circle-extends-its-series-b-round-to-100m/), [address](https://shopcircle.co/pages/careers), [presence](https://builtinlondon.uk/company/shop-circle) - **Skyports** (`skyports`): Develops and operates vertiports and heliports for electric air taxis and drones across 10 countries. Other / Advanced Air Mobility | Up and coming | Lambeth SE11 5DP | founded 2017 | Companies House 10755230 | incorporated 2017-05-05 | SIC 82990 | licensed visa sponsor | London HQ | backed by ACS Group, Deutsche Bahn Digital Ventures, Groupe ADP, Irelandia Aviation, Kanematsu | near Kennington (424 m) | https://skyports.net | sources: [growth](https://www.cityam.com/skyports-flying-taxis-company-raises-110m-ahead-of-2026-launch/), [address](https://skyports.net/), [presence](https://en.wikipedia.org/wiki/Skyports_Infrastructure) - **Snowplow** (`snowplow`): Behavioural data platform that collects and streams customer event data for analytics and AI agents. Other / Behavioural Data | Up and coming | Hackney EC2A 4EG | founded 2012 | raised $55M | Companies House 07852221 | incorporated 2011-11-18 | SIC 62020 | licensed visa sponsor | London HQ | GitHub snowplow | backed by New Enterprise Associates, Atlantic Bridge, MMC Ventures | near Old Street (450 m) | https://snowplow.io | sources: [funding](https://uk.finance.yahoo.com/news/snowplow-secures-fresh-cash-capture-151324545.html), [growth](https://uk.finance.yahoo.com/news/snowplow-secures-fresh-cash-capture-151324545.html), [address](https://snowplow.io/contact-us), [presence](https://builtinlondon.uk/company/snowplow) - **Snyk** (`snyk`): Developer security platform that finds and fixes vulnerabilities in code, open-source dependencies and cloud infrastructure. Other / Developer Security | Well known | Camden NW1 1AD | founded 2015 | Companies House 09677925 | incorporated 2015-07-09 | SIC 58290 | licensed visa sponsor | London office, HQ elsewhere | GitHub snyk | backed by Qatar Investment Authority, ServiceNow | near Euston (151 m) | https://snyk.io | sources: [growth](https://en.wikipedia.org/wiki/Snyk), [address](https://snyk.io/contact-us/), [presence](https://snyk.io/contact-us/) - **Spektrix** (`spektrix`): Ticketing, marketing, fundraising and CRM software for theatres, venues and other arts organisations. Other / Arts ticketing software | Up and coming | Hackney EC2A 4LS | founded 2007 | Companies House 06220078 | incorporated 2007-04-19 | SIC 62012, 63110 | licensed visa sponsor | London HQ | backed by Foresight Group | near Old Street (344 m) | https://spektrix.com | sources: [growth](https://www.spektrix.com/de/?p=5071), [address](https://www.spektrix.com/en-gb/contact), [presence](https://www.spektrix.com/de/?p=5071) - **Stasher** (`stasher`): Online marketplace for booking short-term luggage storage in shops, hotels and smart lockers. Other / Travel tech | Up and coming | Islington N1 8EQ | founded 2015 | last round Growth financing and strategic investment, £3M, Sep 2026 | Companies House 09787338 | incorporated 2015-09-21 | 12 staff in filed accounts (period to 2025-12-31) | SIC 96090 | London HQ | on Tech Nation Upscale 2025; Deloitte UK Technology Fast 50 2025, #31 | backed by Hive Box | near Angel (224 m) | https://stasher.com/ | sources: [funding](https://tech.eu/2026/09/23/london-traveltech-stasher-secures-ps3m-for-global-expansion), [growth](https://tech.eu/2026/09/23/london-traveltech-stasher-secures-ps3m-for-global-expansion), [address](https://stasher.com/privacy-policy), [presence](https://stasher.com/privacy-policy) - **Swap** (`swap`): Commerce operating system for brands covering cross-border shipping, returns, tax, checkout and inventory. Other / Ecommerce Operations | Fastest growing | Hackney EC2A 4NE | founded 2022 | raised $170M | last round Series C, $100M, Jan 2026 | Companies House 13674425 | incorporated 2021-10-12 | SIC 62012 | hiring 7 in London | licensed visa sponsor | work model hybrid (7 London job posts) | London HQ | on LinkedIn Top Startups UK 2025, #3 | backed by DST Global, ICONIQ | near Old Street (321 m) | https://www.swap-commerce.com | sources: [funding](https://www.swap-commerce.com/careers), [growth](https://tech.eu/2026/01/07/e-commerce-operating-startup-swap-raises-100m/), [address](https://www.swap-commerce.com/privacy-policy), [presence](https://jobs.ashbyhq.com/swap/9dac6dba-3d89-4c27-a07d-e86910a87800) - **Team Internet Group** (`team-internet-group`): Team Internet runs domain name management, online product comparison and search advertising services for brands, publishers and consumers. Other / Domains and ad tech | Well known | City of London EC2V 6BR | founded 1996 | Companies House 08576358 | incorporated 2013-06-19 | SIC 63110 | London HQ | near St. Paul's (135 m) | https://www.teaminternet.com | sources: [growth](https://www.tradingview.com/symbols/LSE-TIG/), [address](https://www.teaminternet.com/contact/), [presence](https://www.tradingview.com/symbols/LSE-TIG/) - **ThreatAware** (`threataware`): ThreatAware connects to an organisation's security tools to find every device and check that security controls are working. Other / Cybersecurity | Fastest growing | Southwark SE1 2UP | founded 2018 | raised $25M | last round Series A, $25M, Feb 2026 | Companies House 14505300 | incorporated 2022-11-24 | 28 staff in filed accounts (period to 2025-12-31) | SIC 62012, 62020 | licensed visa sponsor | London HQ | backed by One Peak | near Tower Hill (733 m) | https://threataware.com | sources: [funding](https://threataware.com/insights/blogs/25M-Series-A-Funding), [growth](https://threataware.com/insights/blogs/25M-Series-A-Funding), [address](https://threataware.com/contact-us), [presence](https://threataware.com/contact-us) - **Tilt** (`tilt`): Tilt is a live-shopping marketplace app where sellers run livestream and video auctions for buyers. Other / Live shopping | Fastest growing | Camden N1C 4EW | founded 2021 | raised $50M | last round $26M led by TQ Ventures, Jun 2026 | Companies House 13499061 | incorporated 2021-07-07 | 18 staff in filed accounts (period to 2025-07-31) | SIC 63120 | hiring 2 in London | licensed visa sponsor | London HQ | backed by TQ Ventures, Balderton Capital, Earlybird, Seedcamp, Vinted Ventures | near King's Cross & St Pancras International (699 m) | https://tilt.app | sources: [funding](https://www.shopifreaks.com/tilt-a-london-based-live-shopping-auction-app-raised-26m-to-expand-its-ai-powered-selling-tools-and-enter-the-u-s/), [growth](https://www.shopifreaks.com/tilt-a-london-based-live-shopping-auction-app-raised-26m-to-expand-its-ai-powered-selling-tools-and-enter-the-u-s/), [address](https://find-and-update.company-information.service.gov.uk/company/13499061), [presence](https://www.shopifreaks.com/tilt-a-london-based-live-shopping-auction-app-raised-26m-to-expand-its-ai-powered-selling-tools-and-enter-the-u-s/) - **tiney** (`tiney`): Ofsted-registered childminder agency and platform that trains and supports home-based childminders and lets parents find and book them. Other / Childcare tech | Up and coming | Newham E16 2DQ | founded 2019 | raised £19M (~$24.1M) | last round Series A, £7.2M, May 2024 | Companies House 11194291 | incorporated 2018-02-08 | 52 staff in filed accounts (period to 2025-12-31) | SIC 62012, 88910 | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2024, #47 | backed by Mustard Seed Partners, PortfoLion, Rubio Impact Ventures, Sparkmind | near London City Airport (247 m) | https://www.tiney.co/ | sources: [funding](https://businesscloud.co.uk/news/tiney-raises-7-2m-to-fix-the-childcare-crisis/), [growth](https://businesscloud.co.uk/news/tiney-raises-7-2m-to-fix-the-childcare-crisis/), [address](https://www.tiney.co/), [presence](https://www.tiney.co/) - **tldraw** (`tldraw`): Infinite canvas SDK for React that lets developers build whiteboards, diagramming and canvas apps with multiplayer sync built in. Other / Developer tools | Up and coming | Hackney EC2A 4NA | founded 2022 | last round Series A, $10M, Apr 2025 | Companies House 14068968 | incorporated 2022-04-26 | SIC 58290 | hiring 1 in London | licensed visa sponsor | London HQ | GitHub tldraw | backed by Definition, Lux Capital | near Old Street (321 m) | https://tldraw.dev | sources: [funding](https://tldraw.dev/blog/announcing-tldraw-series-a), [growth](https://tldraw.dev/blog/announcing-tldraw-series-a), [address](https://find-and-update.company-information.service.gov.uk/company/14068968), [presence](https://tldraw.dev/company) - **Tracebit** (`tracebit`): Deploys and manages security canaries, decoy resources that detect attackers inside cloud and enterprise infrastructure. Other / Cloud Security | Fastest growing | Hackney EC2A 4NE | founded 2022 | raised $25M | last round Series A, $20M, Mar 2026 | Companies House 14395264 | incorporated 2022-10-03 | 10 staff in filed accounts (period to 2025-10-31) | SIC 62012 | licensed visa sponsor | London HQ | GitHub tracebit-com | backed by FirstMark, Accel, CCL, MMC Ventures, Tapestry VC | near Old Street (321 m) | https://tracebit.com | sources: [funding](https://tracebit.com/blog/series-a), [growth](https://jobs.ashbyhq.com/tracebit/2de3cc9e-4c4c-4efd-b1b0-a8ededc1814e), [address](https://find-and-update.company-information.service.gov.uk/company/14395264), [presence](https://jobs.ashbyhq.com/tracebit/2de3cc9e-4c4c-4efd-b1b0-a8ededc1814e) - **Trainline** (`trainline`): Rail and coach ticketing app and website selling tickets across the UK and Europe. Other / Rail ticketing | Well known | City of London EC4A 4AH | founded 1997 | last round IPO, London Stock Exchange, Jun 2019 | Companies House 11961132 | incorporated 2019-04-24 | SIC 62090 | London HQ | backed by Exponent Private Equity, KKR | near Farringdon (508 m) | https://www.thetrainline.com | sources: [funding](https://en.wikipedia.org/wiki/Trainline), [growth](https://www.trainlinegroup.com/investors/results-reports-and-presentations/full-year-results-fy2026), [address](https://www.trainlinegroup.com/contact), [presence](https://en.wikipedia.org/wiki/Trainline) - **Treatwell** (`treatwell`): Online booking marketplace and salon management software for hair and beauty businesses across Europe. Other / Beauty booking | Well known | City of London EC4A 3AE | Companies House 06457679 | incorporated 2007-12-19 | SIC 82990 | hiring 15 in London | licensed visa sponsor | work model hybrid (15 London job posts) | London HQ | near Chancery Lane (344 m) | https://www.treatwell.co.uk | sources: [growth](https://treatwell.co.uk/info/about-us/), [address](https://treatwell.co.uk/info/about-us/), [presence](https://treatwell.co.uk/info/about-us/) - **Tripledot Studios** (`tripledot-studios`): Mobile games company running 12 studios, including Wordscapes maker PeopleFun, after buying AppLovin's games portfolio. Other / Mobile Games | Well known | Camden NW1 2PL | founded 2017 | Companies House 10245307 | incorporated 2016-06-22 | SIC 58210 | hiring 8 in London | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2024, #76 | backed by Eldridge, Access Industries, Lightspeed Venture Partners | near Warren Street (193 m) | https://tripledotstudios.com | sources: [growth](https://tech.eu/2025/05/08/tripledot-studios-acquires-applovins-gaming-portfolio-in-800m-deal/), [address](https://tripledotstudios.com), [presence](https://tripledotstudios.com) - **Trustpilot** (`trustpilot`): Trustpilot runs an online platform where consumers publish reviews of businesses and businesses manage and display them. Other / Online reviews | Well known | City of London EC3R 7AG | founded 2007 | Companies House 13184807 | hiring 13 in London | licensed visa sponsor | London office, HQ elsewhere | backed by Vitruvian Partners, Index Ventures, Molten Ventures, Northzone, SEED Capital Denmark | near Monument (318 m) | https://trustpilot.com | sources: [growth](https://en.wikipedia.org/wiki/Trustpilot), [address](https://builtinlondon.uk/company/trustpilot/offices), [presence](https://builtinlondon.uk/company/trustpilot/offices) - **Trybe** (`trybe`): Trybe provides booking, scheduling, payments and membership software for hotels, spas and leisure venues. Other / Hospitality software | Fastest growing | Camden WC1A 2SN | founded 2020 | raised $30M | last round Series A, $30M, Jan 2026 | Companies House 12201800 | 24 staff in filed accounts (period to 2025-12-31) | hiring 1 in London | London HQ | backed by Five Elms Capital | near Holborn (227 m) | https://try.be | sources: [funding](https://try.be/blog/trybe-five-elms-capital), [growth](https://try.be/blog/trybe-five-elms-capital), [address](https://try.be), [presence](https://try.be/about) - **Tyk** (`tyk`): Open-source API gateway and API management platform used by enterprises to run and govern their APIs. Other / API Management | Up and coming | City of London EC2M 3TY | founded 2014 | raised $40.5M | last round Growth equity, $35M, Sep 2021 | Companies House 09727592 | incorporated 2015-08-11 | 33 staff in filed accounts (period to 2026-01-31) | SIC 62012 | London HQ | GitHub TykTechnologies | on Sifted 100 UK & Ireland 2024, #49; Tech Nation Future Fifty 2024 | backed by MMC Ventures, Scottish Equity Partners | near Liverpool Street (373 m) | https://tyk.io | sources: [funding](https://www.scottishfinancialnews.com/articles/tyk-secures-35m-from-scottish-equity-partners-to-revolutionise-software-delivery-for-enterprises), [growth](https://www.scottishfinancialnews.com/articles/tyk-secures-35m-from-scottish-equity-partners-to-revolutionise-software-delivery-for-enterprises), [address](https://tyk.io/company), [presence](https://tyk.io/company-information-for-ai-llms/) - **Unily** (`unily`): Enterprise intranet and employee experience platform used by large companies for internal communications, knowledge and collaboration. Other / Employee experience | Up and coming | City of London WC2A 1QS | founded 2005 | last round Majority growth investment from CVC Growth Funds, Dec 2021 | Companies House 05654147 | incorporated 2005-12-14 | SIC 62020, 62090 | licensed visa sponsor | London HQ | backed by CVC Growth Partners, Farview Equity Partners, Silversmith Capital Partners | near Chancery Lane (125 m) | https://www.unily.com | sources: [funding](https://www.unily.com/about/newsroom/unily-to-supercharge-digital-employee-experience-with-significant-growth-investment-from-cvc-growth-funds), [growth](https://www.unily.com/llm-info), [address](https://www.unily.com/contact), [presence](https://www.unily.com/llm-info) - **Veremark** (`veremark`): Pre-employment screening platform running background checks, references and right-to-work checks in 150+ countries. Other / Background Screening | Up and coming | Westminster W1W 5PF | founded 2018 | Companies House 11681510 | incorporated 2018-11-16 | SIC 62012 | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2024, #10; Tech Nation Future Fifty 2024; Deloitte UK Technology Fast 50 2024, #13; Deloitte UK Technology Fast 50 2023, #9 | backed by Gresham House Ventures | near Great Portland Street (244 m) | https://veremark.com | sources: [growth](https://www.fast50.co.uk/fast50/winners/2024/), [address](https://find-and-update.company-information.service.gov.uk/company/11681510), [presence](https://veremark.com) - **Vertice** (`vertice`): AI procurement platform that helps finance teams buy and negotiate software and other spend, and has acquired Vendr. Other / Procurement Software | Fastest growing | Westminster W1W 5QZ | raised $100M+ | last round Series C, $50M, Jan 2025 | Companies House 13771845 | incorporated 2021-11-29 | SIC 62090 | hiring 15 in London | work model hybrid (5 London job posts) | London HQ | on Sifted 100 UK & Ireland 2026, #47; Tech Nation Future Fifty 2024 | backed by Lakestar, 83North, Bessemer Venture Partners, CF Private Equity, Perpetual Growth | near Great Portland Street (276 m) | https://www.vertice.one | sources: [funding](https://fintech.global/2025/01/22/vertice-secures-50m-series-c-funding-to-enhance-procurement-efficiency/), [growth](https://fintech.global/2025/01/22/vertice-secures-50m-series-c-funding-to-enhance-procurement-efficiency/), [address](https://www.vertice.one/contact-us), [presence](https://www.vertice.one/about-us) - **Vita Mojo** (`vita-mojo`): Restaurant operating system covering ordering, kitchen management and reporting for hospitality brands. Other / Restaurant software | Up and coming | City of London EC2M 5SQ | founded 2015 | last round Series B, $30M, Jul 2022 | Companies House 09852472 | incorporated 2015-11-02 | SIC 62012 | licensed visa sponsor | London HQ | backed by Battery Ventures | near Moorgate (84 m) | https://www.vitamojo.com | sources: [funding](https://www.dlapiper.com/news/2022/07/dla-piper-advise-vita-mojo), [growth](https://www.vitamojo.com/blog/announcing-charlie-horrell-as-new-ceo/), [address](https://www.vitamojo.com/contact), [presence](https://www.vitamojo.com/contact) - **Vorboss** (`vorboss`): Builds and runs a dedicated full fibre network that sells high-speed internet connectivity to businesses in central London. Other / Business fibre | Up and coming | City of London EC2A 2BR | founded 2006 | raised £250M (~$317.5M) | Companies House 05678571 | incorporated 2006-01-17 | SIC 62090 | licensed visa sponsor | London HQ | near Liverpool Street (272 m) | https://vorboss.com/ | sources: [funding](https://www.ispreview.co.uk/index.php/2026/08/london-isp-vorboss-brings-100gbps-to-one-triton-square-businesses.html), [growth](https://www.ispreview.co.uk/index.php/2026/08/london-isp-vorboss-brings-100gbps-to-one-triton-square-businesses.html), [address](https://find-and-update.company-information.service.gov.uk/company/05678571), [presence](https://en.wikipedia.org/wiki/Vorboss) - **Vortexa** (`vortexa`): Real-time data and analytics platform tracking energy cargoes and freight flows for traders and shippers. Other / Energy analytics | Up and coming | City of London EC2N 1HQ | founded 2016 | raised $60M+ | last round Series C, $34M, Jan 2024 | Companies House 09966213 | incorporated 2016-01-22 | SIC 63110 | licensed visa sponsor | London HQ | backed by Morgan Stanley Expansion Capital, Communitas Capital, FJ Labs, Metaplanet, Monashees, Notion Capital | near Liverpool Street (303 m) | https://www.vortexa.com | sources: [funding](https://irei.com/news/morgan-stanley-expansion-capital-leads-34m-series-c-investment-in-vortexa/), [growth](https://www.vortexa.com/about-us/), [address](https://www.vortexa.com/contact-us/), [presence](https://www.vortexa.com/contact-us/) - **what3words** (`what3words`): what3words divides the world into 3m squares and gives each a unique three-word address, used in its app and API. Other / Geocoding | Up and coming | Westminster W2 5EU | founded 2013 | Companies House 08430008 | incorporated 2013-03-05 | SIC 62012 | licensed visa sponsor | London HQ | backed by Aramex, Intel Capital, Force Over Mass Capital, Horizons Ventures, Mustard Seed | near Westbourne Park (329 m) | https://what3words.com | sources: [growth](https://en.wikipedia.org/wiki/What3words), [address](https://find-and-update.company-information.service.gov.uk/company/08430008), [presence](https://en.wikipedia.org/wiki/What3words) - **Wheely** (`wheely`): App for booking chauffeur-driven car journeys in London, Paris, New York and Dubai, with personal and business accounts. Other / Chauffeur ride-hailing | Up and coming | Hammersmith and Fulham W14 0HN | founded 2010 | raised $43M | Companies House 11473477 | incorporated 2018-07-19 | SIC 64209 | hiring 17 in London | London HQ | backed by Concentric | near Kensington (Olympia) (609 m) | https://wheely.com | sources: [funding](https://www.cnbc.com/2024/02/07/luxury-uber-rival-wheely-launches-in-dubai-to-take-on-careem.html), [growth](https://www.cnbc.com/2024/02/07/luxury-uber-rival-wheely-launches-in-dubai-to-take-on-careem.html), [address](https://wheely.com/en), [presence](https://www.cnbc.com/2024/02/07/luxury-uber-rival-wheely-launches-in-dubai-to-take-on-careem.html) - **Whering** (`whering`): Whering is a digital wardrobe app where people catalogue their clothes, plan outfits and packing, and share styling ideas. Other / Fashion app | Up and coming | Islington EC1V 4NJ | founded 2021 | last round Seed, $7M, Jul 2026 | Companies House 12660509 | incorporated 2020-06-10 | 8 staff in filed accounts (period to 2025-06-30) | SIC 62090 | London HQ | backed by eBay Ventures, Google AI Futures Fund | near Angel (59 m) | https://whering.co.uk | sources: [funding](https://tech.eu/2026/07/07/whering-lands-7m-as-digital-wardrobe-platform-reaches-10m-users/), [growth](https://tech.eu/2026/07/07/whering-lands-7m-as-digital-wardrobe-platform-reaches-10m-users/), [address](https://find-and-update.company-information.service.gov.uk/company/12660509), [presence](https://fundraiseinsider.com/blog/whering-raises-7m-seed-for-ai-digital-wardrobe-app/) - **YASO** (`yaso`): Platform that handles payments, logistics, compliance and storefronts for consumer brands selling into China. Other / China e-commerce | Up and coming | Westminster W1F 8WE | founded 2022 | last round Series A, £8.25M, Sep 2025 | Companies House 13952850 | incorporated 2022-03-03 | 6 staff in filed accounts (period to 2025-03-31) | SIC 47910, 73110 | licensed visa sponsor | London HQ | backed by Puma Growth Partners, Founders Capital, Guinness Ventures, Haatch, Koro Capital, Nodes, Playfair Capital, Portfolio Ventures, Sequel | near Tottenham Court Road (336 m) | https://goyaso.com | sources: [funding](https://startupsmagazine.co.uk/article-yaso-raises-11m-series-accelerate-growth), [growth](https://startupsmagazine.co.uk/article-yaso-raises-11m-series-accelerate-growth), [address](https://find-and-update.company-information.service.gov.uk/company/13952850), [presence](https://startupsmagazine.co.uk/article-yaso-raises-11m-series-accelerate-growth) - **YOOBIC** (`yoobic`): Mobile platform for store teams that combines task management, communications, training and AI copilots for retail operations. Other / Retail operations | Up and coming | Hammersmith and Fulham W6 7AP | last round Series C, $50M, Jul 2021 | Companies House 08924655 | incorporated 2014-03-05 | SIC 62012 | licensed visa sponsor | London HQ | backed by Highland Europe, Felix Capital, Insight Partners | near Hammersmith (256 m) | https://www.yoobic.com | sources: [funding](https://tech.eu/2021/07/22/digital-workplace-for-deskless-workers-yoobic-raises-50-million/), [growth](https://www.yoobic.com), [address](https://find-and-update.company-information.service.gov.uk/company/08924655), [presence](https://tech.eu/2021/07/22/digital-workplace-for-deskless-workers-yoobic-raises-50-million/) - **Yoti** (`yoti`): Digital identity and age verification provider, known for its ID wallet and AI age estimation. Other / Digital Identity | Fastest growing | City of London EC3N 1RE | founded 2014 | Companies House 08998951 | incorporated 2014-04-15 | SIC 74909 | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2024, #6; Deloitte UK Technology Fast 50 2024, #20 | near Aldgate (145 m) | https://www.yoti.com | sources: [growth](https://www.yoti.com/blog/thoughts-from-our-ceo-january-2026), [address](https://www.yoti.com/contact/), [presence](https://www.yoti.com/about/) - **Yoto** (`yoto`): Screen-free audio player for children that plays stories, songs and educational content from physical cards. Other / Kids audio | Fastest growing | Camden NW1 1JD | founded 2017 | last round Equity round, $22M, Oct 2023, led by Chan Zuckerberg Initiative | Companies House 09542062 | incorporated 2015-04-14 | SIC 62090 | licensed visa sponsor | London HQ | on Tech Nation Future Fifty 2026; Deloitte UK Technology Fast 50 2025, #45; Deloitte UK Technology Fast 50 2024, #27; Deloitte UK Technology Fast 50 2023, #2 | backed by Chan Zuckerberg Initiative, Acton Capital, Burda Principal Investments, DNS Capital | near Euston (280 m) | https://yotoplay.com | sources: [funding](https://chanzuckerberg.com/newsroom/yoto-investment/), [growth](https://find-and-update.company-information.service.gov.uk/company/09542062/filing-history/MzU0ODMzMzc4N2FkaXF6a2N4/document?format=pdf&download=0), [address](https://careers.yotoplay.com/jobs/8478127-head-of-strategic-finance), [presence](https://careers.yotoplay.com/) - **YouGov** (`yougov`): YouGov is an internet based market research and data analytics group that runs online panels with about 29 million members. Other / Research data | Well known | Islington EC1Y 8RT | founded 2000 | Companies House 03607311 | incorporated 1998-07-30 | SIC 73200 | licensed visa sponsor | London HQ | near Old Street (169 m) | https://yougov.com | sources: [growth](https://en.wikipedia.org/wiki/YouGov), [address](https://find-and-update.company-information.service.gov.uk/company/03607311), [presence](https://en.wikipedia.org/wiki/YouGov) - **Zeelo** (`zeelo`): Zeelo runs software and a network of contracted coaches and buses to provide shared commuter and school transport for employers and schools. Other / Transport software | Fastest growing | Camden WC2B 6NH | founded 2016 | last round Series B, $23M, Jun 2025 | Companies House 10274913 | incorporated 2016-07-12 | SIC 62090 | London HQ | on Sifted 100 UK & Ireland 2024, #35 | backed by Blue Earth Capital, Direttissima Growth Partners | near Holborn (38 m) | https://zeelo.co/ | sources: [funding](https://www.globenewswire.com/news-release/2025/06/24/3104044/0/en/Zeelo-Raises-23M-Series-B-to-Accelerate-AI-Powered-Transportation-as-a-Service-Growth-in-North-America-UK-Ireland.html), [growth](https://www.globenewswire.com/news-release/2025/06/24/3104044/0/en/Zeelo-Raises-23M-Series-B-to-Accelerate-AI-Powered-Transportation-as-a-Service-Growth-in-North-America-UK-Ireland.html), [address](https://zeelo.co/), [presence](https://builtinlondon.uk/company/zeelo/jobs) - **Zen Educate** (`zen-educate`): Online marketplace that matches schools in the UK and US with supply teachers and support staff. Other / Edtech Marketplace | Up and coming | Lambeth SW9 6DE | founded 2017 | raised $58M | last round Series B, $37M, May 2024 | Companies House 10382721 | incorporated 2016-09-19 | 221 staff in filed accounts (period to 2025-12-31) | SIC 82990 | hiring 7 in London | licensed visa sponsor | work model mixed (7 London job posts) | London HQ | on Deloitte UK Technology Fast 50 2025, #40; Tech Nation Future Fifty 2024; Deloitte UK Technology Fast 50 2024, #30; Deloitte UK Technology Fast 50 2023, #45 | backed by Round2 Capital, Adjuvo, Ascension, Brighteye Ventures, FJ Labs | near Oval (222 m) | https://www.zeneducate.com | sources: [funding](https://techcrunch.com/2024/05/20/zen-educate-raises-37m-for-marketplace-that-matches-schools-with-teachers/), [growth](https://techcrunch.com/2024/05/20/zen-educate-raises-37m-for-marketplace-that-matches-schools-with-teachers/), [address](https://www.zeneducate.com/contact-us), [presence](https://tech.eu/2019/09/24/zen-educate-raises-5-6-million-to-solve-uk-teacher-shortages-and-save-schools-millions/) - **Zencargo** (`zencargo`): Digital freight forwarder and supply chain platform that books, tracks and manages international shipments for brands. Other / Supply chain | Up and coming | Westminster W2 4BU | founded 2017 | raised £42M (~$53.3M) | last round Series B, £30M | Companies House 14749459 | incorporated 2023-03-22 | SIC 50200 | London HQ | on Sifted 100 UK & Ireland 2024, #86 | backed by Digital+ Partners, HV Capital | near Bayswater (88 m) | https://www.zencargo.com/ | sources: [funding](https://www.zencargo.com/resources/zencargo-series-b/), [growth](https://www.zencargo.com/resources/zencargo-series-b/), [address](https://www.zencargo.com/contact/), [presence](https://www.zencargo.com/contact/) - **Zero Gravity** (`zero-gravity`): Zero Gravity is an online platform that gives students from low-opportunity backgrounds mentoring and AI tutoring to help them reach top universities and careers. Other / Edtech | Fastest growing | City of London EC2Y 5EB | founded 2019 | raised £7.6M (~$9.7M) | Companies House 12091675 | incorporated 2019-07-08 | SIC 62012 | licensed visa sponsor | London HQ | on Sifted 100 UK & Ireland 2026, #93 | near St. Paul's (282 m) | https://www.zerogravity.co.uk/ | sources: [funding](https://email.sifted.eu/hubfs/Sifted%20100%20UK%20%26%20Ireland%202026%20Report.pdf), [growth](https://email.sifted.eu/hubfs/Sifted%20100%20UK%20%26%20Ireland%202026%20Report.pdf), [address](https://find-and-update.company-information.service.gov.uk/company/12091675), [presence](https://app.welcometothejungle.com/jobs/4w_8VxUH/company) - **Zero100** (`zero100`): Research, benchmarking and peer network platform for supply chain and operations leaders at large companies. Other / Supply Chain Intelligence | Fastest growing | Camden WC1A 2HN | founded 2021 | Companies House 13372745 | incorporated 2021-05-04 | SIC 63990 | licensed visa sponsor | London HQ | on LinkedIn Top Startups UK 2025, #12 | backed by Levine Leichtman Capital Partners | near Holborn (339 m) | https://zero100.com | sources: [growth](https://zero100.com/insights/zero100-named-one-of-britains-100-fastest-growing-private-companies-after-landmark-18-months/), [address](https://uk.linkedin.com/company/zero100inc), [presence](https://zero100.com/careers/) - **Zoopla** (`zoopla`): UK property portal for buying, selling and renting homes, with home valuation tracking for owners and lead tools for estate agents. Other / Property portal | Well known | Southwark SE1 2LH | founded 2007 | Companies House 06074771 | incorporated 2007-01-30 | SIC 62090, 63110, 63120 | licensed visa sponsor | London HQ | backed by Silver Lake | near Tower Hill (722 m) | https://www.zoopla.co.uk | sources: [growth](https://www.onlinemarketplaces.com/articles/zoopla-fy25-revenues-dip-slightly-with-16-margin-and-improved-profitability/), [address](https://find-and-update.company-information.service.gov.uk/company/06074771), [presence](https://en.wikipedia.org/wiki/Zoopla)