Top list · United States · 2026
Climate Tech startups in the United States that raised in 2026
62 climate Tech startups in the United States that raised in 2026 have raised money in rounds we track in 2026. These are the 50 that raised the most, $17B between them, with Houston the most common home.
- 1
Venture 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 - 2SILAFounded -United States$1.7Blast round Aug 2026
- 3Commonwealth Fusion SystemsFounded -United States$1.0Blast round Jul 2026
- 4
Sedron 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 - 5
Fervo 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$441Mlast round Sept 2026 - 6
Redwood 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$425Mlast round Jan 2026 - 7
Radial 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$355Mlast round Jan 2026 - 8
Lunar 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 - 9
Muon SpaceMuon Space is an American aerospace startup founded in 2021, based in Mountain View, California.Muon Space is an American aerospace startup founded in 2021, based in Mountain View, California.
Founded 2021Mountain View, United States$250Mlast round Aug 2026 - 10
Heron PowerHeron Power is an energy infrastructure company based in Scotts Valley, California, founded in 2024 by Drew Baglino, a former Tesla executive.Heron Power is an energy infrastructure company based in Scotts Valley, California, founded in 2024 by Drew Baglino, a former Tesla executive.
Founded 2024Scotts Valley, United States$200Mlast round Sept 2026 - 11
Standard NuclearStandard Nuclear manufactures advanced nuclear fuel for next-generation reactors and high-temperature applications.Standard Nuclear manufactures advanced nuclear fuel for next-generation reactors and high-temperature applications.
Founded -Oak Ridge, United States$140Mlast round Jan 2026 - 12
Thea EnergyThea Energy is a fusion energy startup focused on commercializing scalable and zero-emission power through advanced stellarator technology.Thea Energy is a fusion energy startup focused on commercializing scalable and zero-emission power through advanced stellarator technology.
Founded 2022Kearny, United States$120Mlast round Jul 2026 - 13
RainmakerRainmaker is a New York-based crypto and DeFi company that specializes in a mobile-first, account-abstraction wallet.Rainmaker is a New York-based crypto and DeFi company that specializes in a mobile-first, account-abstraction wallet.
Founded 2022New York, United States$100Mlast round Sept 2026 - 14
Project OmegaProject Omega is a nuclear technology startup founded in 2026 and headquartered in Rhode Island.Project Omega is a nuclear technology startup founded in 2026 and headquartered in Rhode Island.
Founded 2025Washington, United States$92Mlast round Nov 2026 - 15
Imperative GlobalImperative Global is an environmental consulting company that provides carbon offset and environmental asset projects.Imperative Global is an environmental consulting company that provides carbon offset and environmental asset projects.
Founded -Houston, United States$91Mlast round Apr 2026 - 16
Type One EnergyStellarator technology to transform energy markets with fusion power.Stellarator technology to transform energy markets with fusion power.
Founded 2019Knoxville, United States$88Mlast round Sept 2026 - 17
Applied CarbonApplied Carbon is a Houston-based climate technology company founded in 2020, specializing in innovative solutions for carbon sequestration and soil health.Applied Carbon is a Houston-based climate technology company founded in 2020, specializing in innovative solutions for carbon sequestration and soil health.
Founded 2020Houston, United States$72Mlast round Nov 2026 - 18
StandDiscrete Safety Jewellery For Peace Of MindDiscrete Safety Jewellery For Peace Of Mind
Founded 2019United States$70Mlast round Oct 2026 - 19
LanzaJetLanzaJet is a private company founded in 2020 that focuses on sustainable fuels technology.LanzaJet is a private company founded in 2020 that focuses on sustainable fuels technology.
Founded 2020Chicago, United States$67Mlast round Oct 2026 - 20
Colossal BiosciencesColossal Biosciences is an American biotechnology and genetic engineering company founded in September 2021, recognized as the world's first dedicated de-extincColossal 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$60Mlast round Feb 2026 - 21
DG MatrixDG Matrix is a cleantech company based in Raleigh, North Carolina, founded in 2022.DG Matrix is a cleantech company based in Raleigh, North Carolina, founded in 2022.
Founded 2022Morrisville, United States$60Mlast round Feb 2026 - 22
Endurance EnergyA Calgary, Alberta-based early-stage exploration and production companyA Calgary, Alberta-based early-stage exploration and production company
Founded 2025Seattle, United States$54Mlast round Jun 2026 - 23
CapturaCaptura Corporation is a climate technology company based in Pasadena, California, founded in 2021 by scientists from Caltech.Captura Corporation is a climate technology company based in Pasadena, California, founded in 2021 by scientists from Caltech.
Founded 2021Pasadena, United States$54Mlast round Jul 2026 - 24
AMP RoboticsAMP offers AI-powered waste sorting solutions to automate recovery and reduce labor.AMP offers AI-powered waste sorting solutions to automate recovery and reduce labor.
Founded -United States$53Mlast round Jun 2026 - 25
TwelveTwelve offers smart payment solutions such as software modules, links, ordering solutions, internet solutions, communication & sponsorship.Twelve offers smart payment solutions such as software modules, links, ordering solutions, internet solutions, communication & sponsorship.
Founded 2007Utrecht, United States$45Mlast round Sept 2026 - 26
Pennsylvania American WaterPennsylvania American Water provides high-quality and reliable water and wastewater services.
Pennsylvania American Water provides high-quality and reliable water and wastewater services.
Founded 1965Camden, United States$43Mlast round Oct 2026 - 27
Vaulted DeepVaulted Deep is a Houston-based company specializing in carbon removal and waste management.Vaulted Deep is a Houston-based company specializing in carbon removal and waste management.
Founded 2023Houston, United States$35Mlast round Sept 2026 - 28
TerradotTerradot is a climate technology company founded in 2022 at Stanford University, focused on developing Enhanced Rock Weathering (ERW) solutions to remove carbonTerradot is a climate technology company founded in 2022 at Stanford University, focused on developing Enhanced Rock Weathering (ERW) solutions to remove carbon
Founded 2022San Francisco, United States$34Mlast round Oct 2026 - 29
Hippo HarvestHippo Harvest is a private controlled-environment agriculture company founded in 2019, based in the San Francisco Bay Area.Hippo Harvest is a private controlled-environment agriculture company founded in 2019, based in the San Francisco Bay Area.
Founded 2019Pescadero, United States$30Mlast round Aug 2026 - 30
NanoTech MaterialsNanoTech Materials, Inc.NanoTech Materials, Inc.
Founded 2019Houston, United States$29Mlast round Apr 2026 - 31
CREW CarbonCREW Carbon is a climate technology company founded in 2022 and based in Hamden, Connecticut.CREW Carbon is a climate technology company founded in 2022 and based in Hamden, Connecticut.
Founded -Hamden, United States$25Mlast round May 2026 - 32
CatalyxxCatalyxx Inc focuses on sustainable chemical processes using thermo-chemical catalytic technology.Catalyxx Inc focuses on sustainable chemical processes using thermo-chemical catalytic technology.
Founded 2017Chesterfield, United States$23Mlast round Jul 2026 - 33
AmogyAmogy Inc.Amogy Inc.
Founded 2020New York, United States$20Mlast round Oct 2026 - 34TiveFounded -United States$20Mlast round Jan 2026
- 35
Charm IndustrialCharm Industrial is putting oil back underground via bio-oil sequestration and industrial syngas production.
Charm Industrial is putting oil back underground via bio-oil sequestration and industrial syngas production.
Founded 2018San Francisco, United States$20Mlast round Jun 2026 - 36
GigablueGigablue is a marine carbon dioxide removal (mCDR) company based in New York, NY, founded in 2022.Gigablue is a marine carbon dioxide removal (mCDR) company based in New York, NY, founded in 2022.
Founded 2022New York, United States$20Mlast round Jan 2026 - 37
CarbonDropCarbondrop is a climate technology product manufacturing that remove CO2 from the atmosphere by accelerating Earth’s natural CO2 cycle.Carbondrop is a climate technology product manufacturing that remove CO2 from the atmosphere by accelerating Earth’s natural CO2 cycle.
Founded 2023Palo Alto, United States$20Mlast round May 2026 - 38
DMC BiotechnologiesDMC Biotechnologies produces bio-based chemicals using fermentation.DMC Biotechnologies produces bio-based chemicals using fermentation.
Founded 2014Boulder, United States$18Mlast round Oct 2026 - 39
Hauler HeroHauler Hero is a cloud-based software company that provides an all-in-one operating system for waste and recycling haulers.Hauler Hero is a cloud-based software company that provides an all-in-one operating system for waste and recycling haulers.
Founded 2020New York, United States$16Mlast round Feb 2026 - 40
Circularity FuelsCircularity Fuels converts biogas into sustainable aviation fuel.Circularity Fuels converts biogas into sustainable aviation fuel.
Founded -Palo Alto, United States$15Mlast round Nov 2026 - 41
Helix EarthHelix Earth Technologies, Inc.Helix Earth Technologies, Inc.
Founded 2022Houston, United States$12Mlast round Mar 2026 - 42
ClarasightClarasight is a New York-based technology company founded in 2021 by Adam Braun and Philip Charm.Clarasight is a New York-based technology company founded in 2021 by Adam Braun and Philip Charm.
Founded 2021New York, United States$12Mlast round Apr 2026 - 43
AmerminAmermin is a recycling company that specializes in refining and selling of strategic minerals and metals.Amermin is a recycling company that specializes in refining and selling of strategic minerals and metals.
Founded 2017Austin, United States$12Mlast round Jan 2026 - 44
TrashieTrashie gives people an easy and convenient way to recycle unwanted clothing, shoes, accessories, linens, and more, keeping waste out of landfills for as long aTrashie gives people an easy and convenient way to recycle unwanted clothing, shoes, accessories, linens, and more, keeping waste out of landfills for as long a
Founded 2024New York, United States$10Mlast round Mar 2026 - 45
RavelRavel is a startup company that develops a compact and safe mining system for thin ore deposits.Ravel is a startup company that develops a compact and safe mining system for thin ore deposits.
Founded 2018United States$8.2Mlast round Sept 2026 - 46
ReservoirEmpowering agtech startups with field-ready R&D, robotics, and funding.Empowering agtech startups with field-ready R&D, robotics, and funding.
Founded -Salinas, United States$8.0Mlast round Aug 2026 - 47
KodamaKodama is a designer and manufacturer of the next evolution of furniture design.Kodama is a designer and manufacturer of the next evolution of furniture design.
Founded 2012United States$7.0Mlast round Oct 2026 - 48AlcoveFounded -United States$6.0Mlast round Sept 2026
- 49
Eco World WaterEco World Water is a clean water tech company that offers wastewater processing through physical and chemical treatment process.Eco World Water is a clean water tech company that offers wastewater processing through physical and chemical treatment process.
Founded -Fort Lauderdale, United States$5.9Mlast round Apr 2026 - 50
SupersedeSupersede changes the standard of building materials by replacing conventional wood-based products.
Supersede changes the standard of building materials by replacing conventional wood-based products.
Founded 2024Phoenix, United States$5.0Mlast round May 2026
Washington, United StatesCompanies with a round in 2026 that we track, ranked by what they raised this year. Nobody pays to be on a list.
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