Top list · Europe

Clean energy startups in Europe

470 clean energy startups in Europe have raised money in rounds we track. These are the 50 that have raised the most, $23B between them, with the United Kingdom the most common home.

$23Braised by these 50
470on our record in all
United Kingdommost common home
SSEraised the most
  1. 1SSEFounded 1998Perth, United Kingdom$2.7Blast round Jun 2026
  2. 2Eni PlenitudeEni Plenitude supplies energy for homes and institutions.

    Eni Plenitude supplies energy for homes and institutions.

    Founded 2017San Donato Milanese, Italy$2.3Blast round Jun 2025
  3. 3StegraStegra operates a steel production plant to accelerate the decarbonization of the steel industry using green energy.

    Stegra operates a steel production plant to accelerate the decarbonization of the steel industry using green energy.

    Founded 2020Stockholm, Sweden$1.6Blast round Apr 2026
  4. 4ReturnFounded -Netherlands$1.3Blast round Nov 2026
  5. 5EnpalEnpal is a photovoltaics leasing firm that provides solar power systems for homeowners.

    Enpal is a photovoltaics leasing firm that provides solar power systems for homeowners.

    Founded 2017Berlin, Germany$1.0Blast round Oct 2025
  6. 6CuspAICuspAI is an innovative artificial intelligence company based in Cambridge, United Kingdom, with additional teams in Amsterdam and Berlin.

    CuspAI is an innovative artificial intelligence company based in Cambridge, United Kingdom, with additional teams in Amsterdam and Berlin.

    Founded 2024Cambridge, United Kingdom$950Mlast round Jul 2026
  7. 7Rezolv EnergyRezolv Energy is an independent power producer and renewable energy developer based in Prague, Czech Republic.

    Rezolv Energy is an independent power producer and renewable energy developer based in Prague, Czech Republic.

    Founded 2022Prague, Romania$763Mlast round Nov 2026
  8. 8BNZ energyBNZ, an independent power producer (IPP), plans, installs, and runs solar photovoltaic projects.

    BNZ, an independent power producer (IPP), plans, installs, and runs solar photovoltaic projects.

    Founded 2020Madrid, Spain$740Mlast round Oct 2024
  9. 9Octopus Energy GroupOctopus Energy Group is an England-based holding company that operates businesses in areas such as energy generation and electric vehicle sales.

    Octopus Energy Group is an England-based holding company that operates businesses in areas such as energy generation and electric vehicle sales.

    Founded 2016London, United Kingdom$681Mlast round Dec 2025
  10. 10Proxima FusionProxima Fusion is a European fusion energy company based in Munich, Germany, founded in 2023 as the first spin-out from the Max Planck Institute for Plasma Physics.

    Proxima Fusion is a European fusion energy company based in Munich, Germany, founded in 2023 as the first spin-out from the Max Planck Institute for Plasma Physics.

    Founded 2023Munich, Germany$636Mlast round Jul 2026
  11. 11GIGA StorageGIGA Storage develops large-scale sustainable energy storage systems.

    GIGA Storage develops large-scale sustainable energy storage systems.

    Founded 2018Amstelveen, Netherlands$634Mlast round Oct 2026
  12. 121KOMMA5°1Komma5° is an electricity company offering free electricity to all electric vehicle owners financed through trading using GHG quotas.

    1Komma5° is an electricity company offering free electricity to all electric vehicle owners financed through trading using GHG quotas.

    Founded 2021Hamburg, Germany$563Mlast round Oct 2026
  13. 13NewcleoNewcleo is an atomic energy company that focuses on developing advanced nuclear energy technologies.

    Newcleo is an atomic energy company that focuses on developing advanced nuclear energy technologies.

    Founded 2021Paris, United Kingdom$563Mlast round Sept 2026
  14. 14EllevioEllevio is a Swedish energy provider.

    Ellevio is a Swedish energy provider.

    Founded 2015Stockholm, Sweden$555Mlast round May 2025
  15. 15ILOS ProjectsILOS Projects is a Independent Power Producer.

    ILOS Projects is a Independent Power Producer.

    Founded 2018Karlsruhe, Germany$530Mlast round Apr 2026
  16. 16ZenobēFounded -United Kingdom$382Mlast round Jul 2025
  17. 17FeverFounded -Sweden$359Mlast round Sept 2026
  18. 18ZelestraAt Zelestra, we are on a mission to change the world by making decarbonization a reality for our partners.

    At Zelestra, we are on a mission to change the world by making decarbonization a reality for our partners.

    Founded 2005Spain, Spain$350Mlast round Oct 2026
  19. 19Beta RenewablesBeta Renewables is a biofuels and biochemical company.

    Beta Renewables is a biofuels and biochemical company.

    Founded 2011Tortona, Italy$344Mlast round Oct 2011
  20. 20Atrato Onsite EnergyAtrato Onsite Energy is a commercial rooftop solar funder.

    Atrato Onsite Energy is a commercial rooftop solar funder.

    Founded -London, United Kingdom$327Mlast round Apr 2025
  21. 21SunfireSunfire GmbH is an industrial electrolysis company based in Dresden, Germany, founded in 2010 by Nils Aldag.

    Sunfire GmbH is an industrial electrolysis company based in Dresden, Germany, founded in 2010 by Nils Aldag.

    Founded 2010Dresden, Germany$281Mlast round Mar 2024
  22. 22Focused EnergyFocused Energy is a German-American deep-tech startup founded in 2021, specializing in laser-driven inertial confinement fusion (ICF).

    Focused Energy is a German-American deep-tech startup founded in 2021, specializing in laser-driven inertial confinement fusion (ICF).

    Founded 2021Darmstadt, Germany$280Mlast round Jun 2026
  23. 23Skeleton TechnologiesSkeleton Technologies is a global leader in cleantech and the largest manufacturer of advanced energy storage solutions, focusing on ultracapacitors and high-po

    Skeleton Technologies is a global leader in cleantech and the largest manufacturer of advanced energy storage solutions, focusing on ultracapacitors and high-po

    Founded 2009Tallinn, Estonia$274Mlast round Oct 2026
  24. 24IchthionIchthion engaged in Development of cutting-edge technology to restore the ocean environment.

    Ichthion engaged in Development of cutting-edge technology to restore the ocean environment.

    Founded 2017United Kingdom$271Mlast round Jan 2024
  25. 25FieldField is Strava for football, tennis and padel.

    Field is Strava for football, tennis and padel.

    Founded 2019United Kingdom$265Mlast round Sept 2024
  26. 26terralayrFounded -Switzerland$257Mlast round Jan 2026
  27. 27HoloSolisHolosolis contributes to the EU’s goal of local PV module production and curbing global warming.

    Holosolis contributes to the EU’s goal of local PV module production and curbing global warming.

    Founded 2023Paris, France$255Mlast round Nov 2025
  28. 28DRIVECODRIVECO offers a charging station for electric vehicles

    DRIVECO offers a charging station for electric vehicles

    Founded 2010Paris, France$250Mlast round May 2023
  29. 29AMPYR Distributed EnergyAMPYR Distributed Energy designs, constructs, owns, and operates sustainable energy technology.

    AMPYR Distributed Energy designs, constructs, owns, and operates sustainable energy technology.

    Founded -London, United Kingdom$229Mlast round May 2025
  30. 30SunprimeSunprime is a fast-growing Independent Power Producer based in Italy focused on Solar C&I, and smart homes segments.

    Sunprime is a fast-growing Independent Power Producer based in Italy focused on Solar C&I, and smart homes segments.

    Founded 2020Milano, Italy$221Mlast round Jul 2024
  31. 31Svea SolarSvea Solar is digitalising energy.

    Svea Solar is digitalising energy.

    Founded -Sollentuna, Sweden$216Mlast round Jun 2026
  32. 32EVCEVC's core focus is on providing convenient, practical and reliable 'destination' charging options for its growing customer base

    EVC's core focus is on providing convenient, practical and reliable 'destination' charging options for its growing customer base

    Founded 2020United Kingdom$199Mlast round Feb 2023
  33. 33GeoPuraGeoPura is enabling the production, transport, and use of zero-emissions fuels with innovative and commercially viable technology.

    GeoPura is enabling the production, transport, and use of zero-emissions fuels with innovative and commercially viable technology.

    Founded 2019Wysall, United Kingdom$194Mlast round Aug 2026
  34. 34Green GeniusFounded -Lithuania$183Mlast round Nov 2026
  35. 35Power DotPower Dot is a public EV destination charging infrastructure operator

    Power Dot is a public EV destination charging infrastructure operator

    Founded 2018Lisbon, Portugal$180Mlast round Aug 2024
  36. 36AiraFounded -Sweden$174Mlast round Aug 2025
  37. 37Highview PowerHighview Power is a renewable energy company that develops liquid-air energy storage solutions for grid applications.

    Highview Power is a renewable energy company that develops liquid-air energy storage solutions for grid applications.

    Founded 2005London, United Kingdom$171Mlast round Nov 2025
  38. 38AmpergiaAmpergia Limited is a UK-based renewable energy company founded in 2021 by Sandip Sali.

    Ampergia Limited is a UK-based renewable energy company founded in 2021 by Sandip Sali.

    Founded 2021Milton Keynes, United Kingdom$168Mlast round Jan 2022
  39. 39First Light FusionFirst Light Fusion is a British company based in Oxfordshire, focused on developing innovative solutions for fusion energy through inertial confinement.

    First Light Fusion is a British company based in Oxfordshire, focused on developing innovative solutions for fusion energy through inertial confinement.

    Founded 2011Yarnton, United Kingdom$167Mlast round Apr 2026
  40. 40BBOXXBboxx manufactures plug and play solar systems.

    Bboxx manufactures plug and play solar systems.

    Founded 2010London, United Kingdom$167Mlast round Apr 2025
  41. 41Mainstream Renewable PowerMainstream Renewable Energy provides project design and management services for renewable and alternative energies.

    Mainstream Renewable Energy provides project design and management services for renewable and alternative energies.

    Founded 2008Dublin, Ireland$159Mlast round Aug 2013
  42. 42FastnedFastned is a fast-charging network for electric vehicles to charge with renewable energy from the sun and wind.

    Fastned is a fast-charging network for electric vehicles to charge with renewable energy from the sun and wind.

    Founded 2012Amsterdam, Netherlands$159Mlast round Jan 2026
  43. 43sonnenSonnen is a pioneer for intelligent lithium based energy storage.

    Sonnen is a pioneer for intelligent lithium based energy storage.

    Founded 2010Wildpoldsried, Germany$155Mlast round May 2018
  44. 44HeliatekHeliatek is a German technology company based in Dresden, focused on developing and producing lightweight, flexible organic photovoltaic (OPV) solar films.

    Heliatek is a German technology company based in Dresden, focused on developing and producing lightweight, flexible organic photovoltaic (OPV) solar films.

    Founded 2006Dresden, Germany$153Mlast round Oct 2017
  45. 45Artic EnergyFounded -Iceland$150Mlast round Apr 2018
  46. 46UrbanVoltUrban Volt is an energy services company that provides energy-efficient lighting solutions to commercial and industrial clients.

    Urban Volt is an energy services company that provides energy-efficient lighting solutions to commercial and industrial clients.

    Founded 2015Dublin, Ireland$144Mlast round May 2025
  47. 47Mytrah EnergyMytrah Energy (India) Limited (MEIL), a wholly owned subsidiary of Guernsey based and AIM/LSE listed MEL in India,

    Mytrah Energy (India) Limited (MEIL), a wholly owned subsidiary of Guernsey based and AIM/LSE listed MEL in India,

    Founded 2009Hyderabad, United Kingdom$130Mlast round Apr 2015
  48. 48SonnedixSonnedix Solar is a global power producer dedicated to produce low-carbon solar energy for the future.

    Sonnedix Solar is a global power producer dedicated to produce low-carbon solar energy for the future.

    Founded 2009London, France$124Mlast round Jan 2014
  49. 49Connected KerbConnected Kerb Limited is an electric vehicle (EV) infrastructure company based in London, UK, founded in 2017.

    Connected Kerb Limited is an electric vehicle (EV) infrastructure company based in London, UK, founded in 2017.

    Founded 2017London, United Kingdom$123Mlast round Jan 2025
  50. 50WAATOpérateur français de bornes de recharge ⚡ Copropriété • Bailleurs sociaux • Immobilier Tertiaire • Entreprises Lauréat 2026 French Tech 120 🐓 Ecovadis 2025 Méd

    Opérateur français de bornes de recharge ⚡ Copropriété • Bailleurs sociaux • Immobilier Tertiaire • Entreprises Lauréat 2026 French Tech 120 🐓 Ecovadis 2025 Méd

    Founded 2018Malakoff, France$118Mlast round Sept 2025
Total fundinghow the list is ranked
15 November 2026updated nightly
Rounds we tracksource: Millionrounds

Companies whose funding rounds we classed as this sector, ranked by the total they have raised in rounds we hold. Nobody pays to be on a list.

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