38 Best Clean Technology Startups in Uk to Watch in 2025

The Definitive Seedtable Ranking of Clean Technology Startups in Uk

We track 71,000+ companies and rank them dynamically using our Seedtable Score – a score that uses quantitative and qualitative data points to signal the momentum behind a company. We then monitor the list manually leveraging our expertise as founders and investors.

There are 38 start-ups with an aggregate funding of $998.1m. The average funding per company in this subset is $26.3m.

Last update to the database: Feb 18, 2025. See changelog.

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9

Funding Rounds

$138.9m

Money raised

SkySpecs is a company founded in 2012 by Daniel Ellis.

1

Funding Rounds

$37.9m

Money raised

Worn Again is a United Kingdom-based fast fashion company founded in 2012.

4

Funding Rounds

$38.8m

Money raised

Winnow Solutions is a company founded in 2013.

3

Funding Rounds

$40.6m

Money raised

Developer of an energy storage technology designed to fight climate change using carbon dioxide (CO2) to accelerate the transition to renewable energy. The company's technology is based on a thermodynamic transformation of CO2 a closed-loop process to store energy and make renewable power dispatchable.

Key people:

3

Funding Rounds

$11.1m

Money raised

Deep Branch is a carbon dioxide recycling company that is using microorganisms to convert clean CO2 into quality products.

1

Funding Rounds

$4.1m

Money raised

Lightfoot is an Exeter-based clean technology engineering company.

Key people:

7

Funding Rounds

$24.5m

Money raised

Invinity Energy Systems is a vanadium flow battery company.

4

Funding Rounds

$2.5m

Money raised

The Company has recently released electric turbofans optimized for static thrust and VTOL/STOL.

2

Funding Rounds

$5.1m

Money raised

Listing of items billable to a patient being treated at a hospital in the united states

1

Funding Rounds

$8.0m

Money raised

A global leader in low-cost CO2 capture technology and is headquartered in London and operates offices in India, Spain, and the United States.

Key people:

3

Funding Rounds

$5.8m

Money raised

Abundance Investment is a United Kingdom-based company founded in 2009 by Bruce Davis, Karl Harder and Louise Wilson.

8

Funding Rounds

$3.6m

Money raised

Petalite is offering EV charging solutions to energy companies, charge point operators, and fleet management companies to help maximize their ROI potential and provide a competitive and reliable charging service for EV drivers.

1

Funding Rounds

$35.0m

Money raised

Twig is a fintech that turn things into cash instantly.

1

Funding Rounds

Simple public electric vehicle charging with an electric fuel card & mobile app for business

2

Funding Rounds

$64.0m

Money raised

Exergyn is a CLEANER WORLD powered by Exergyn founded in 2012 by Alan Healy.

Key people:

7

Funding Rounds

$25.6m

Money raised

ZapGo Ltd. is a company founded in Oxford, UK.

1

Funding Rounds

$2.4m

Money raised

Previsico is a company developing real-time flood modelling software founded in 2018.

8

Funding Rounds

$225.0m

Money raised

Urban Volt is an energy-saving LED and solar panel manufacturer founded in 2015.

2

Funding Rounds

$3.8m

Money raised

Food and nutraceutical products and sustainable materials made from sustainably-sourced seaweed.

3

Funding Rounds

$15.0m

Money raised

HyPoint is a developer of hydrogen-powered fuel cells and fuel cell solutions for the aerospace industry.

Key people:

1

Funding Rounds

$32.0m

Money raised

1

Funding Rounds

$13.3m

Money raised

Technology company and truck manufacturer focusing on zero-emission Battery Electric and H2FC range-extended vehicles.

3

Funding Rounds

$1.4m

Money raised

SolarforSchools is a company founded in 2015 by Robert Schrimpff.

Key people:

1

Funding Rounds

$1.2m

Money raised

Storelectric is a developer of projects using two highly efficient forms of Compressed Air Energy Storage.

Key people:

1

Funding Rounds

$3.4m

Money raised

Creating a revolution in how we build, live in and grow our environments.

2

Funding Rounds

$2.9m

Money raised

Smart Green Shipping is a wing-sail solutions provider for shipping industry founded in 2014 by Diane Gilpin.

Location:

Key people:

4

Funding Rounds

$1.5m

Money raised

Adgero is a company founded in 2017 by Mack Murray, Gines Linares, Frederic Soulier and Jean-Pierre Hannebert.

Key people:

2

Funding Rounds

$121.0m

Money raised

TechMet is a private industrial company that invests in securing the supply of the key metals critical to the manufacturing of EVs, Energy Storage, and Renewable Energy technologies. TechMet currently holds interests in both production and development assets in Africa, North America, and South America.

1

Funding Rounds

$4.0m

Money raised

Lune Climate offers the API for emissions calculations and carbon removal.

1

Funding Rounds

$13.0m

Money raised

Limestone-based direct air capture (DAC) technology developer to remove carbon from the atmosphere.

Key people:

1

Funding Rounds

$25.2k

Money raised

Xeroe is a company founded by Barry Coleman .

Key people:

1

Funding Rounds

$12.7m

Money raised

DEScycle is an e-waste metal recycling solutions provider founded in 2018 by Geoff McNamara.

Key people:

1

Funding Rounds

$700.0k

Money raised

Artio is a provider of insurance products for carbon projects founded in 2023 by Ibrahim Sarwar.

Key people:

1

Funding Rounds

$3.4m

Money raised

Manufacturer of high-value materials utilizing greenhouse gas emissions.

Key people:

1

Funding Rounds

$7.0m

Money raised

Zevero is a carbon accounting platform for companies founded in 2021 by Shigeo Taniuchi .

Key people:

4

Funding Rounds

$87.8m

Money raised

Oxford Photovoltaics is a company founded in 2010.

1

Funding Rounds

$235.6k

Money raised

1

Funding Rounds

$1.1m

Money raised

Biodegradable packaging solutions provider.

Key people:

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