Top list · United States

Climate tech startups in the United States

720 climate tech startups in the United States have raised money in rounds we track. These are the 50 that have raised the most, $62B between them, with Houston the most common home.

$62Braised by these 50
720on our record in all
Houstonmost common home
Venture Globalraised the most
  1. 1Venture GlobalVenture Global is a supplier of home, office, and stationery products.

    Venture Global is a supplier of home, office, and stationery products.

    Founded 2013Washington, United States$10Blast round Jun 2026
  2. 2CrusoeCrusoe is an energy-first AI infrastructure company that develops and operates large-scale, AI-optimized data centers powered by clean energy sources.

    Crusoe is an energy-first AI infrastructure company that develops and operates large-scale, AI-optimized data centers powered by clean energy sources.

    Founded 2018Denver, United States$9.9Blast round Sept 2026
  3. 3Atlas Renewable EnergyAtlas Renewable Energy is a renewable energy company that develops, builds, and operates solar and wind projects.

    Atlas Renewable Energy is a renewable energy company that develops, builds, and operates solar and wind projects.

    Founded 2017Miami, United States$3.1Blast round Apr 2026
  4. 4EVgoEVgo provides fast charging networks for private and public electric vehicles.

    EVgo provides fast charging networks for private and public electric vehicles.

    Founded 2010Los Angeles, United States$2.5Blast round Jul 2025
  5. 5Base PowerFounded -United States$2.2Blast round Aug 2026
  6. 6Form EnergyForm Energy develops and commercializes a low-cost battery system that can store wind and solar energy for a long duration.

    Form Energy develops and commercializes a low-cost battery system that can store wind and solar energy for a long duration.

    Founded 2017Somerville, United States$2.0Blast round Sept 2026
  7. 7Commonwealth Fusion SystemsFounded -United States$1.9Blast round Jul 2026
  8. 8SILAFounded -United States$1.7Blast round Aug 2026
  9. 9X-energyX-energy is delivering the next generation of carbon-free energy by reinventing nuclear power.

    X-energy is delivering the next generation of carbon-free energy by reinventing nuclear power.

    Founded 2009Rockville, United States$1.5Blast round May 2026
  10. 10Dimension EnergyFounded -United States$1.5Blast round Aug 2026
  11. 11Generate CapitalGenerate Capital is an investment and operating platform for sustainable infrastructure.

    Generate Capital is an investment and operating platform for sustainable infrastructure.

    Founded 2014San Francisco, United States$1.3Blast round Sept 2026
  12. 12Redwood MaterialsRedwood Materials is an American company based in Carson City, Nevada, focused on creating a sustainable supply chain for lithium-ion batteries.

    Redwood Materials is an American company based in Carson City, Nevada, focused on creating a sustainable supply chain for lithium-ion batteries.

    Founded 2017Carson City, United States$1.2Blast round Jan 2026
  13. 13EnergyReEnergyRe is at the center of the clean energy future.

    EnergyRe is at the center of the clean energy future.

    Founded 2020New York, United States$1.2Blast round Oct 2026
  14. 14CleanSparkCleanSpark (Nasdaq: CLSK) is America's Bitcoin MinerTM.

    CleanSpark (Nasdaq: CLSK) is America's Bitcoin MinerTM.

    Founded 2014Henderson, United States$1.1Blast round Nov 2025
  15. 15Fervo EnergyFervo Energy develops clean energy technology to generate carbon-free energy from geothermal systems.

    Fervo Energy develops clean energy technology to generate carbon-free energy from geothermal systems.

    Founded 2017Houston, United States$1.1Blast round Sept 2026
  16. 16SB EnergySB Energy provides renewable energy at scale, accelerating the global energy transition.

    SB Energy provides renewable energy at scale, accelerating the global energy transition.

    Founded 2015Redwood City, United States$1.0Blast round Jan 2026
  17. 17The Appalachian Regional Clean Hydrogen HubARCH2's mission is to provide an interconnected, full value chain H2Hub solution.

    ARCH2's mission is to provide an interconnected, full value chain H2Hub solution.

    Founded -Morgantown, United States$925Mlast round Jul 2024
  18. 18Solar LandscapeSolar Landscape is an installer and operator of solar energy systems.

    Solar Landscape is an installer and operator of solar energy systems.

    Founded 2012Asbury Park, United States$900Mlast round Jun 2026
  19. 19Pacific FusionPacific Fusion was founded in 2023 to deliver commercial fusion energy to power cities, businesses and homes.

    Pacific Fusion was founded in 2023 to deliver commercial fusion energy to power cities, businesses and homes.

    Founded 1997Fremont, United States$900Mlast round Nov 2024
  20. 20FootprintFootprint is a materials science technology company that designs, develops, and manufactures solutions to replace single-use plastics.

    Footprint is a materials science technology company that designs, develops, and manufactures solutions to replace single-use plastics.

    Founded 2013Gilbert, United States$843Mlast round May 2024
  21. 21Blue EnergyBlue Energy is a nuclear energy company that designs and manufactures modular nuclear power plants.

    Blue Energy is a nuclear energy company that designs and manufactures modular nuclear power plants.

    Founded -Plainfield, United States$805Mlast round Jul 2026
  22. 22Intersect PowerFounded -United States$800Mlast round Dec 2024
  23. 23AvantusAvantus develops large-scale solar and solar-plus-storage projects to drive the adoption of zero-emission energy.

    Avantus develops large-scale solar and solar-plus-storage projects to drive the adoption of zero-emission energy.

    Founded 2019El Dorado Hills, United States$800Mlast round Sept 2026
  24. 24Panamint CapitalPanamint Capital is an energy investment firm that focuses on developing electric transmission and optimizing power generation.

    Panamint Capital is an energy investment firm that focuses on developing electric transmission and optimizing power generation.

    Founded 2019United States$769Mlast round Nov 2026
  25. 25XPLR InfrastructureXPLR Infrastructure is a renewable energy company that owns, operates, and acquires contracted clean energy projects.

    XPLR Infrastructure is a renewable energy company that owns, operates, and acquires contracted clean energy projects.

    Founded -North Palm Beach, United States$750Mlast round Nov 2025
  26. 26Maxwell PowerMaxwell Power is a renewable energy company that installs solar panels.

    Maxwell Power is a renewable energy company that installs solar panels.

    Founded -San Diego, United States$750Mlast round Jun 2026
  27. 27Radial PowerRadial Power provides distributed energy and sustainability solutions to commercial and industrial real estate asset owners.

    Radial Power provides distributed energy and sustainability solutions to commercial and industrial real estate asset owners.

    Founded 2022Houston, United States$660Mlast round Jan 2026
  28. 28Origis EnergyOrigis Energy focuses on the development, construction, and operation of solar power plants and energy storage solutions.

    Origis Energy focuses on the development, construction, and operation of solar power plants and energy storage solutions.

    Founded 2008Miami, United States$651Mlast round Jan 2025
  29. 29rPlus EnergiesrPlus Energies builds new power plants to help rebuild America's energy infrastructure.

    rPlus Energies builds new power plants to help rebuild America's energy infrastructure.

    Founded 2018Salt Lake City, United States$650Mlast round Mar 2026
  30. 30WildFire EnergyWildfire Energy is an Australian cleantech startup focused on converting residual waste into renewable energy, hydrogen, and sustainable fuels using its proprie

    Wildfire Energy is an Australian cleantech startup focused on converting residual waste into renewable energy, hydrogen, and sustainable fuels using its proprie

    Founded 2016Petrie Terrace, United States$604Mlast round Jul 2026
  31. 31Abound SolarAbound Solar was a thin-film solar module manufacturer based in Loveland, Colorado.

    Abound Solar was a thin-film solar module manufacturer based in Loveland, Colorado.

    Founded 2007Loveland, United States$510Mlast round Dec 2010
  32. 321PointFive1PointFive is a multi-solution platform for Carbon Capture, Utilization and Sequestration (CCUS) that provides decarbonization solutions.

    1PointFive is a multi-solution platform for Carbon Capture, Utilization and Sequestration (CCUS) that provides decarbonization solutions.

    Founded 2020Houston, United States$500Mlast round Sept 2024
  33. 33Sedron TechnologiesSedron Technologies is a private environmental services company based in Sedro-Woolley, Washington, founded in 2014 as a spinoff from Janicki Industries.

    Sedron Technologies is a private environmental services company based in Sedro-Woolley, Washington, founded in 2014 as a spinoff from Janicki Industries.

    Founded 2014Sedro-Woolley, United States$500Mlast round May 2026
  34. 34Pivot EnergyPivot Energy is a national renewable energy provider that develops, finances, builds, owns, and manages solar and energy storage projects.

    Pivot Energy is a national renewable energy provider that develops, finances, builds, owns, and manages solar and energy storage projects.

    Founded 2009Denver, United States$500Mlast round Oct 2026
  35. 35ArevonArevon Energy is a renewable energy company that focuses on developing, acquiring, and managing large-scale renewable energy projects.

    Arevon Energy is a renewable energy company that focuses on developing, acquiring, and managing large-scale renewable energy projects.

    Founded 2017Scottsdale, United States$482Mlast round Mar 2026
  36. 36HelionHelion incorporated in 2009 and is now functioning as an R&D/thinktank company providing intellectual services with an emphasis on artificial intelligence, math

    Helion incorporated in 2009 and is now functioning as an R&D/thinktank company providing intellectual services with an emphasis on artificial intelligence, math

    Founded -Salt Lake City, UT, United States$465Mlast round Jun 2026
  37. 37SoloPowerSoloPower is a producer of thin-film photovoltaic cells and modules that help solar electricity generation.

    SoloPower is a producer of thin-film photovoltaic cells and modules that help solar electricity generation.

    Founded 2005Portland, United States$458Mlast round Oct 2012
  38. 38Spearmint EnergySpearmint Energy is a merchant energy trading company founded to combine innovative financial solutions.

    Spearmint Energy is a merchant energy trading company founded to combine innovative financial solutions.

    Founded 2022Miami, United States$450Mlast round May 2026
  39. 39Helion EnergyHelion Energy is a fusion power company developing the world's first fusion generators, enabling a future with unlimited clean energy.

    Helion Energy is a fusion power company developing the world's first fusion generators, enabling a future with unlimited clean energy.

    Founded 2013Everett, United States$437Mlast round Jan 2025
  40. 40NineDot EnergyNineDot Energy develops battery storage sites and other energy solutions.

    NineDot Energy develops battery storage sites and other energy solutions.

    Founded 2015New York, United States$431Mlast round Feb 2026
  41. 41Trace MidstreamTrace Midstream focuses on the development of carbon capture and sequestration projects.

    Trace Midstream focuses on the development of carbon capture and sequestration projects.

    Founded 2018Houston, United States$400Mlast round Sept 2022
  42. 42Colossal BiosciencesColossal Biosciences is an American biotechnology and genetic engineering company founded in September 2021, recognized as the world's first dedicated de-extinc

    Colossal Biosciences is an American biotechnology and genetic engineering company founded in September 2021, recognized as the world's first dedicated de-extinc

    Founded 2021Dallas, United States$380Mlast round Feb 2026
  43. 43Whysol RenewablesWhysol Renewables is an Italian independent power producer focused on renewable energy and energy transition projects.

    Whysol Renewables is an Italian independent power producer focused on renewable energy and energy transition projects.

    Founded -Italy, United States$368Mlast round Mar 2026
  44. 44PanthalassaPanthalassa is a public-benefit corporation based in Portland, Oregon, founded in 2016.

    Panthalassa is a public-benefit corporation based in Portland, Oregon, founded in 2016.

    Founded 2021Portland, United States$365Mlast round Aug 2026
  45. 45Agilitas EnergyAgilitas Energy is a fully integrated developer, builder, owner, and operator of distributed solar and energy-storage systems.

    Agilitas Energy is a fully integrated developer, builder, owner, and operator of distributed solar and energy-storage systems.

    Founded 2014Wakefield, United States$350Mlast round Jun 2022
  46. 46Nature's FyndNature's Fynd is a Chicago-based food-tech company that specializes in creating animal-free meat and dairy alternatives.

    Nature's Fynd is a Chicago-based food-tech company that specializes in creating animal-free meat and dairy alternatives.

    Founded 2012Chicago, United States$350Mlast round Jul 2021
  47. 47Estuary PowerEstuary Power develops, sponsors, and finances energy projects.

    Estuary Power develops, sponsors, and finances energy projects.

    Founded 2013Reno, United States$340Mlast round Dec 2024
  48. 48Ara PartnersAra Partners is an oppertunistic private equity investment platform.

    Ara Partners is an oppertunistic private equity investment platform.

    Founded 2017Houston, United States$335Mlast round Sept 2024
  49. 49Lunar EnergyLunar Energy is a renewable energy company based in Mountain View, California, founded in 2020.

    Lunar Energy is a renewable energy company based in Mountain View, California, founded in 2020.

    Founded 2020Mountain View, United States$334Mlast round Feb 2026
  50. 50GridPointGridPoint is a clean technology company based in Reston, Virginia, founded in 2003.

    GridPoint is a clean technology company based in Reston, Virginia, founded in 2003.

    Founded 2003Reston, United States$331Mlast round Jul 2014
Total fundinghow the list is ranked
15 November 2026updated nightly
Rounds we tracksource: Millionrounds

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

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