The best Climate companies in London

Household energy supplier that also builds its own renewable generation, founded by ex-Revolut executives.

Home energy platform that finances and installs heat pumps, solar and batteries, and offers home cover plans.

Software platform that energy suppliers use for billing, customer care and smart management of EVs and home devices.

Operating system software that utilities use to run billing, customer service and energy assets.

Global developer and operator of utility-scale solar, wind and battery storage projects, owned by bp.

Renewable-focused gas and electricity supplier and Britain's largest household energy supplier.

Zenobe builds and runs grid-scale battery storage and provides charging, batteries and software to electrify bus and truck fleets.

Independent ratings agency that scores the quality and risk of carbon credits for buyers and investors.

Certifies carbon removal and other climate projects with AI-assisted verification and runs a public registry of credits.

All-electric last-mile parcel delivery company serving online retailers, run on its own logistics software.

Builds hardware that makes synthetic natural gas from green hydrogen and captured CO2 for injection into existing gas pipelines.

UCL spinout using magnetic fields and control software to make lithium-ion batteries charge faster and last longer.

Software platform that helps companies and investors measure, report and act on nature and biodiversity risks, including TNFD and CSRD disclosure.

Carbon management software that combines AI carbon accounting with in-house climate experts for footprints, product footprints and ESG reporting.

Software that connects EV chargers, batteries and heat pumps to energy markets so they earn money supporting the grid.

UK public EV charging network operator funding and running charge points for councils, businesses and drivers.

Physics-based software that makes batteries in EVs and devices charge faster and last longer.

Makes compact modular carbon capture units for heavy industry such as cement, steel and energy.

Builds on-street and residential EV charging infrastructure for UK councils and businesses.

Uses AI, wireless sensors and data to optimise concrete mixes and cut cement emissions in construction.

Develops, builds and runs large battery storage sites across the UK and Europe.

London dockless e-bike sharing app with 1.5 million users riding across 18 boroughs.

AI cameras and software that identify waste on recycling lines so plants recover more material.

Builds liquid air energy storage plants that store renewable power for long periods and release it to the grid.

Designs smart home EV chargers with solar integration and app-based tariff control, sold in the UK and abroad.

Data, forecasts and regulated benchmarks for investors and operators of battery storage and power assets.

UK solar and battery subscription that removes the upfront cost of home solar for households.

Smart thermostat and data platform helping social housing providers spot cold, damp and mould in homes.

AI-powered platform that lets businesses buy electricity straight from generators without wholesale markups.

AI and satellite data platform that tracks the origin and risk of commodities like timber, cocoa and soy.

Builds and runs AI and HPC colocation data centres that capture waste heat and supply it to pools, district heating and other heat users.

Sharing app where neighbours and volunteers give away surplus food and household items for free, including collections from supermarket partners.

Software that orchestrates home EV charging, solar and batteries so utilities can run flexibility programmes.

Grows real animal fat from cells in modular cultivators for use in meat and meat-alternative products.

Uses AI-designed enzymes to break down plastic and textile waste into recycled nylon polymers.

Arenko's Nimbus software controls and trades grid-scale battery storage assets in energy markets.

Makes cultivated chicken for pet food from cells, the first company to sell cultivated meat for pets.

Procurement, advisory and market intelligence platform for companies buying carbon credits and other environmental assets.

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 data platform for food and beverage firms, covering corporate and product carbon footprints and supplier decarbonisation.

Beryl designs its own bikes, e-bikes and e-scooters and runs shared hire schemes for UK towns and cities.

Uses precision fermentation to make milk proteins without cows for uses such as infant formula and supplements.

Carbon accounting platform that tracks emissions in commodity and heavy industry supply chains for traders, manufacturers and banks.

Develops hydrogen-manganese flow batteries for long-duration grid energy storage.

Installs and runs on-street EV chargers for residents without driveways across UK councils.

Digital product passport and traceability platform that tracks critical battery materials such as cobalt and lithium through supply chains.

Climate risk data and analytics that show banks and asset managers how physical climate hazards affect asset values.

Carbon removal platform that builds removal portfolios for companies and finances carbon removal projects.

Software platform that helps electricity utilities find, value and procure flexibility from distributed energy resources through local flexibility markets.

Entocycle builds automated insect farming technology that turns food waste into insect protein for animal feed.

Emissions and sustainability data for cloud and AI infrastructure, helping IT teams cut carbon and cost.

Makes Hybrid Intelligent Transformers that give grids, data centres and industrial sites precise power flow control.

Kita is a Lloyd's coverholder that sells insurance against delivery, failure and political risk for carbon and natural capital projects.

Electrochemical direct air capture machines that pull CO2 from the air for use or storage.

Grows textile materials from bacterial nanocellulose as a lower-impact alternative to leather and plastics.

Platform that builds digital twins of food supply chains to measure product-level carbon, cost and risk for retailers and suppliers.

Makes seaweed and plant based packaging that replaces single use plastic.

Smart home EV chargers and app that charge cars when power is cheapest and greenest.

Osprey builds and runs a UK network of public rapid and ultra-rapid EV charging hubs.

Runs an online marketplace where grid operators buy energy flexibility from owners of batteries, EV chargers and other distributed assets.

Polymateria makes an additive that makes plastic packaging biodegrade on a set timeline if it ends up in the environment instead of being recycled.

Makes adsorbent materials that capture PFAS forever chemicals from water.

AI vision and robotic sorting systems that help recycling facilities recover more material from mixed waste.

Develops High-Density Hydro, a pumped storage system using a dense fluid so long-duration energy storage fits on low hills.

Builds onboard carbon capture systems that trap CO2 from ship exhausts and turn it into limestone.

Makes Vivomer, a compostable plastic alternative made by microbial fermentation, used for cosmetics and personal care packaging.

Runs a marketplace where companies buy vetted permanent carbon removal credits such as biochar and BECCS.

Builds an electrochemical reactor that makes hydrogen from water and specialty chemicals from carbon-rich waste.

Ratings and data that show buyers and investors how good carbon credits and climate projects really are.

Makes Tap, a touchscreen smart light switch that controls lighting, heating and music and monitors home energy use.

Runs salary sacrifice schemes that let employees lease new or used electric cars paid from gross salary at no cost to the employer.

Removes CO2 by spreading crushed silicate rock on farmland through enhanced rock weathering.

Provides a single API that streams connected vehicle and charger data from 30+ automakers to fleets and energy companies.

AI system that automatically records and analyses food thrown away in commercial kitchens so operators can cut waste and food costs.