The best Crypto companies in London

Builds Aave, one of the largest decentralised lending protocols, plus related crypto products.

Institutional crypto liquidity provider and OTC market maker, majority-owned by Japan's SBI Holdings.

FCA-regulated crypto index provider whose bitcoin reference rate prices major US spot bitcoin ETFs.

Regulated institutional spot crypto exchange run by London's LMAX Group, a long-standing FX exchange operator.

Crypto investment platform owned by Digital Currency Group, serving 16 million users across Africa and Asia-Pacific.

Algorithmic trading firm that provides liquidity across crypto markets and is expanding into traditional markets.

Regulated digital asset custodian offering custody, staking, tokenisation and collateral services to institutions.

Payments and banking rails for crypto firms, with FCA-authorised and EU-licensed entities.

Runs a blockchain built for stablecoin payments, including zero-fee USDT transfers.

Institutional crypto custody, collateral and off-exchange settlement (ClearLoop) provider.

Blockchain analytics used by exchanges, banks and governments for crypto compliance and risk screening.

Stablecoin payment infrastructure for converting and moving money between fiat and stablecoins across 70+ countries.

Crypto and stablecoin payments app and card issuer, a principal member of Visa and Mastercard.

Provides fiat to crypto on-ramp and off-ramp infrastructure that apps and wallets embed to let users buy, sell and swap crypto.

Privacy-first Ethereum layer 2 using zero-knowledge proofs, plus the Noir language for private smart contracts.

FCA-regulated UK trading venue for centrally cleared digital asset futures and options for institutional investors.

FCA-regulated London exchange, broker and custodian for tokenised real-world assets such as money market funds and bonds.

Risk ratings and monitoring of crypto exchanges, custodians and lenders so institutions can manage counterparty exposure.

Builds clearing, payment and settlement infrastructure for institutional digital asset markets, regulated in the UK.

AI agents that produce auditable due diligence reports on digital assets and private markets for institutions.

FCA-registered crypto derivatives data, volatility analytics, research and on-chain options pricing oracles for institutions.

Researches and builds blockchain protocols and peer-to-peer platforms for decentralised financial markets.

Web3 and AI developer community running programmes, bootcamps and hackathons from a Shoreditch innovation hub.

Banking and payments API that gives crypto platforms regulated fiat accounts, virtual IBANs and payment rails.

Portfolio and risk management software for institutional crypto funds and trading firms.

Builds the Nethermind Ethereum execution client plus blockchain security audits, research and engineering services.

London venture firm and accelerator investing in early-stage crypto and AI startups.

Builds FinP2P, an interoperability network letting banks trade and settle tokenised assets across blockchains and ledgers.

Builds the core software and developer tooling behind the Polkadot blockchain network.

London company behind Overledger and Quant Flow, software that lets banks program money and connect to blockchains.

London research and development hub building core protocol and apps on the Tezos blockchain.

Bank-backed crypto custodian offering custody, staking, trading and settlement services to institutions.

Institutional digital asset brokerage for cross-border crypto and stablecoin trading with same-day settlement.