# Top 50 Climate Tech Startups by Funding Raised in 2026

> The 50 climate Tech startups that raised in 2026 that raised the most in 2026, ranked by money raised this year: $20B combined.

Source: https://millionrounds.com/top-lists/climate-startups-raised-2026 (Millionrounds; every figure on the page links to its filing or article)

- 1 [**Venture Global** Venture Global is a supplier of home, office, and stationery products.](https://millionrounds.com/company/venture-global) Venture Global is a supplier of home, office, and stationery products. *Founded* 2013 Washington, United States **$10B** last round Jun 2026
- 2 [**SILA**](https://millionrounds.com/company/sila) *Founded* - United States **$1.7B** last round Aug 2026
- 3 [**Commonwealth Fusion Systems**](https://millionrounds.com/company/commonwealth-fusion-systems) *Founded* - United States **$1.0B** last round Jul 2026
- 4 [**Atome Energy** Atome Energy is the green hydrogen and ammonia project development company to create a greener, cleaner environment.](https://millionrounds.com/company/atome-energy) Atome Energy is the green hydrogen and ammonia project development company to create a greener, cleaner environment. *Founded* - Leeds, United Kingdom **$665M** last round Apr 2026
- 5 [**Multiverse Computing** Multiverse Computing is a leading quantum AI software company based in San Sebastián, Spain, with additional offices in Canada, the UK, France, Germany, Italy,](https://millionrounds.com/company/multiverse-computing) Multiverse Computing is a leading quantum AI software company based in San Sebastián, Spain, with additional offices in Canada, the UK, France, Germany, Italy, *Founded* 2019 San Sebastian, Spain **$570M** last round Jul 2026
- 6 [**Sedron Technologies** Sedron Technologies is a private environmental services company based in Sedro-Woolley, Washington, founded in 2014 as a spinoff from Janicki Industries.](https://millionrounds.com/company/sedron-technologies) Sedron Technologies is a private environmental services company based in Sedro-Woolley, Washington, founded in 2014 as a spinoff from Janicki Industries. *Founded* 2014 Sedro-Woolley, United States **$500M** last round May 2026
- 7 [**Fervo Energy** Fervo Energy develops clean energy technology to generate carbon-free energy from geothermal systems.](https://millionrounds.com/company/fervo-energy) Fervo Energy develops clean energy technology to generate carbon-free energy from geothermal systems. *Founded* 2017 Houston, United States **$441M** last round Sept 2026
- 8 [**Redwood Materials** Redwood Materials is an American company based in Carson City, Nevada, focused on creating a sustainable supply chain for lithium-ion batteries.](https://millionrounds.com/company/redwood-materials) Redwood Materials is an American company based in Carson City, Nevada, focused on creating a sustainable supply chain for lithium-ion batteries. *Founded* 2017 Carson City, United States **$425M** last round Jan 2026
- 9 [**Radial Power** Radial Power provides distributed energy and sustainability solutions to commercial and industrial real estate asset owners.](https://millionrounds.com/company/radial-power) Radial Power provides distributed energy and sustainability solutions to commercial and industrial real estate asset owners. *Founded* 2022 Houston, United States **$355M** last round Jan 2026
- 10 [**Lunar Energy** Lunar Energy is a renewable energy company based in Mountain View, California, founded in 2020.](https://millionrounds.com/company/lunar-energy) Lunar Energy is a renewable energy company based in Mountain View, California, founded in 2020. *Founded* 2020 Mountain View, United States **$334M** last round Feb 2026
- 11 [**Aegea Saneamento** Aegea is a private sector sanitation company in Brazil.](https://millionrounds.com/company/aegea-saneamento) Aegea is a private sector sanitation company in Brazil. *Founded* 2010 Sao Paulo, Brazil **$328M** last round Jun 2026
- 12 [**Muon Space** Muon Space is an American aerospace startup founded in 2021, based in Mountain View, California.](https://millionrounds.com/company/muon-space) Muon Space is an American aerospace startup founded in 2021, based in Mountain View, California. *Founded* 2021 Mountain View, United States **$250M** last round Aug 2026
- 13 [**Focused Energy** Focused Energy is a German-American deep-tech startup founded in 2021, specializing in laser-driven inertial confinement fusion (ICF).](https://millionrounds.com/company/focused-energy) Focused Energy is a German-American deep-tech startup founded in 2021, specializing in laser-driven inertial confinement fusion (ICF). *Founded* 2021 Darmstadt, Germany **$240M** last round Jun 2026
- 14 [**Heron Power** Heron Power is an energy infrastructure company based in Scotts Valley, California, founded in 2024 by Drew Baglino, a former Tesla executive.](https://millionrounds.com/company/heron-power) Heron Power is an energy infrastructure company based in Scotts Valley, California, founded in 2024 by Drew Baglino, a former Tesla executive. *Founded* 2024 Scotts Valley, United States **$200M** last round Sept 2026
- 15 [**Reverion** Reverion produces highly efficient, reversible, carbon-negative power plants.](https://millionrounds.com/company/reverion) Reverion produces highly efficient, reversible, carbon-negative power plants. *Founded* 2022 Germany **$175M** last round Sept 2026
- 16 [**Reju**](https://millionrounds.com/company/reju) *Founded* - - **$157M** last round Apr 2026
- 17 [**METYCLE** METYCLE is a digital trading platform based in Cologne, Germany, founded in 2022.](https://millionrounds.com/company/metycle) METYCLE is a digital trading platform based in Cologne, Germany, founded in 2022. *Founded* 2022 Cologne, Germany **$150M** last round Sept 2026
- 18 [**Standard Nuclear** Standard Nuclear manufactures advanced nuclear fuel for next-generation reactors and high-temperature applications.](https://millionrounds.com/company/standard-nuclear) Standard Nuclear manufactures advanced nuclear fuel for next-generation reactors and high-temperature applications. *Founded* - Oak Ridge, United States **$140M** last round Jan 2026
- 19 [**Thea Energy** Thea Energy is a fusion energy startup focused on commercializing scalable and zero-emission power through advanced stellarator technology.](https://millionrounds.com/company/thea-energy) Thea Energy is a fusion energy startup focused on commercializing scalable and zero-emission power through advanced stellarator technology. *Founded* 2022 Kearny, United States **$120M** last round Jul 2026
- 20 [**Breathe Battery Technologies** Breathe Battery Technologies is a developer of electric vehicle battery charging control software for automotive manufacturers.](https://millionrounds.com/company/breathe-battery-technologies) Breathe Battery Technologies is a developer of electric vehicle battery charging control software for automotive manufacturers. *Founded* 2019 United Kingdom **$111M** last round Aug 2026
- 21 [**General Fusion** General Fusion develops commercial fusion energy using Magnetized Target Fusion technology.](https://millionrounds.com/company/general-fusion) General Fusion develops commercial fusion energy using Magnetized Target Fusion technology. *Founded* 2002 Richmond, Canada **$108M** last round Jul 2026
- 22 [**Rainmaker** Rainmaker is a New York-based crypto and DeFi company that specializes in a mobile-first, account-abstraction wallet.](https://millionrounds.com/company/rainmaker) Rainmaker is a New York-based crypto and DeFi company that specializes in a mobile-first, account-abstraction wallet. *Founded* 2022 New York, United States **$100M** last round Sept 2026
- 23 [**Kanin Energy** Kanin Energy is a clean technology developer founded in 2020, focused on industrial decarbonization.](https://millionrounds.com/company/kanin-energy) Kanin Energy is a clean technology developer founded in 2020, focused on industrial decarbonization. *Founded* 2020 Calgary, Canada **$100M** last round Sept 2026
- 24 [**osapiens** osapiens is a Germany-based Software-as-a-Service (SaaS) provider that focuses on helping global companies achieve sustainable growth through AI-based automatio](https://millionrounds.com/company/osapiens) osapiens is a Germany-based Software-as-a-Service (SaaS) provider that focuses on helping global companies achieve sustainable growth through AI-based automatio *Founded* 2018 Mannheim, Germany **$100M** last round Jan 2026
- 25 [**R.Power Renewables** R.Power Renewables develops renewable energy sources.](https://millionrounds.com/company/r-power-renewables) R.Power Renewables develops renewable energy sources. *Founded* 2010 Warszawa, Poland **$98M** last round Jun 2026
- 26 [**Amber** Built by a collective of artisans, Amber functions as an integrated hub with multidisciplinary global locations.](https://millionrounds.com/company/amber) Built by a collective of artisans, Amber functions as an integrated hub with multidisciplinary global locations. *Founded* - Australia **$96M** last round Sept 2026
- 27 [**Project Omega** Project Omega is a nuclear technology startup founded in 2026 and headquartered in Rhode Island.](https://millionrounds.com/company/project-omega) Project Omega is a nuclear technology startup founded in 2026 and headquartered in Rhode Island. *Founded* 2025 Washington, United States **$92M** last round Nov 2026
- 28 [**Imperative Global** Imperative Global is an environmental consulting company that provides carbon offset and environmental asset projects.](https://millionrounds.com/company/imperative-global) Imperative Global is an environmental consulting company that provides carbon offset and environmental asset projects. *Founded* - Houston, United States **$91M** last round Apr 2026
- 29 [**Type One Energy** Stellarator technology to transform energy markets with fusion power.](https://millionrounds.com/company/type-one-energy) Stellarator technology to transform energy markets with fusion power. *Founded* 2019 Knoxville, United States **$88M** last round Sept 2026
- 30 [**Elysis** Elysis is a technology enterprise that provides an eco-friendly solution for the production and process of aluminum.](https://millionrounds.com/company/elysis) Elysis is a technology enterprise that provides an eco-friendly solution for the production and process of aluminum. *Founded* - Montréal, Canada **$73M** last round May 2026
- 31 [**Applied Carbon** Applied Carbon is a Houston-based climate technology company founded in 2020, specializing in innovative solutions for carbon sequestration and soil health.](https://millionrounds.com/company/applied-carbon) Applied Carbon is a Houston-based climate technology company founded in 2020, specializing in innovative solutions for carbon sequestration and soil health. *Founded* 2020 Houston, United States **$72M** last round Nov 2026
- 32 [**Stand** Discrete Safety Jewellery For Peace Of Mind](https://millionrounds.com/company/stand) Discrete Safety Jewellery For Peace Of Mind *Founded* 2019 United States **$70M** last round Oct 2026
- 33 [**LanzaJet** LanzaJet is a private company founded in 2020 that focuses on sustainable fuels technology.](https://millionrounds.com/company/lanzajet) LanzaJet is a private company founded in 2020 that focuses on sustainable fuels technology. *Founded* 2020 Chicago, United States **$67M** last round Oct 2026
- 34 [**Colossal Biosciences** Colossal Biosciences is an American biotechnology and genetic engineering company founded in September 2021, recognized as the world's first dedicated de-extinc](https://millionrounds.com/company/colossal-biosciences) Colossal Biosciences is an American biotechnology and genetic engineering company founded in September 2021, recognized as the world's first dedicated de-extinc *Founded* 2021 Dallas, United States **$60M** last round Feb 2026
- 35 [**DG Matrix** DG Matrix is a cleantech company based in Raleigh, North Carolina, founded in 2022.](https://millionrounds.com/company/dg-matrix) DG Matrix is a cleantech company based in Raleigh, North Carolina, founded in 2022. *Founded* 2022 Morrisville, United States **$60M** last round Feb 2026
- 36 [**Endurance Energy** A Calgary, Alberta-based early-stage exploration and production company](https://millionrounds.com/company/endurance-energy) A Calgary, Alberta-based early-stage exploration and production company *Founded* 2025 Seattle, United States **$54M** last round Jun 2026
- 37 [**Captura** Captura Corporation is a climate technology company based in Pasadena, California, founded in 2021 by scientists from Caltech.](https://millionrounds.com/company/captura) Captura Corporation is a climate technology company based in Pasadena, California, founded in 2021 by scientists from Caltech. *Founded* 2021 Pasadena, United States **$54M** last round Jul 2026
- 38 [**AMP Robotics** AMP offers AI-powered waste sorting solutions to automate recovery and reduce labor.](https://millionrounds.com/company/amp-robotics) AMP offers AI-powered waste sorting solutions to automate recovery and reduce labor. *Founded* - United States **$53M** last round Jun 2026
- 39 [**Jetson** We are an intelligent "voice-first" commerce platform that delivers a best-in-class buying experience for your brand.](https://millionrounds.com/company/jetson) We are an intelligent "voice-first" commerce platform that delivers a best-in-class buying experience for your brand. *Founded* 2017 Canada **$50M** last round Jan 2026
- 40 [**Isometric** Isometric is a London-based certification platform focused on the industrial economy, specializing in carbon removal registry and science services.](https://millionrounds.com/company/isometric) Isometric is a London-based certification platform focused on the industrial economy, specializing in carbon removal registry and science services. *Founded* 2022 London, United Kingdom **$50M** last round Sept 2026
- 41 [**Africa50**](https://millionrounds.com/company/africa50) *Founded* - - **$50M** last round Aug 2026
- 42 [**Twelve** Twelve offers smart payment solutions such as software modules, links, ordering solutions, internet solutions, communication & sponsorship.](https://millionrounds.com/company/twelve) Twelve offers smart payment solutions such as software modules, links, ordering solutions, internet solutions, communication & sponsorship. *Founded* 2007 Utrecht, United States **$45M** last round Sept 2026
- 43 [**constellr** constellr is a German NewSpace deep-tech company based in Freiburg, with additional offices in Munich.](https://millionrounds.com/company/constellr) constellr is a German NewSpace deep-tech company based in Freiburg, with additional offices in Munich. *Founded* 2020 Munich, Germany **$44M** last round Feb 2026
- 44 [**Ore Energy** Ore Energy is a Dutch climate technology startup founded in 2022 and spun out of TU Delft in 2023.](https://millionrounds.com/company/ore-energy) Ore Energy is a Dutch climate technology startup founded in 2022 and spun out of TU Delft in 2023. *Founded* 2023 Amsterdam, Netherlands **$43M** last round Aug 2026
- 45 [**Pennsylvania American Water** Pennsylvania American Water provides high-quality and reliable water and wastewater services.](https://millionrounds.com/company/pennsylvania-american-water) Pennsylvania American Water provides high-quality and reliable water and wastewater services. *Founded* 1965 Camden, United States **$43M** last round Oct 2026
- 46 [**Mombak** MOMBAK is a Brazilian carbon removal startup founded in 2021 by Gabriel Silva and Peter Fernandez, headquartered in São Paulo.](https://millionrounds.com/company/mombak) MOMBAK is a Brazilian carbon removal startup founded in 2021 by Gabriel Silva and Peter Fernandez, headquartered in São Paulo. *Founded* 2021 Sao Paulo, Brazil **$39M** last round Sept 2026
- 47 [**ARC Ride**](https://millionrounds.com/company/arc-ride) *Founded* - United Kingdom **$38M** last round Sept 2026
- 48 [**Undo** Undo is the time travel debugging company for Linux.](https://millionrounds.com/company/undo) Undo is the time travel debugging company for Linux. *Founded* 2012 Cambridge, United Kingdom **$37M** last round Jun 2026
- 49 [**Hysata** Hysata develops hydrogen electrolyzers aimed at advancing the global transition from fossil fuels to green hydrogen.](https://millionrounds.com/company/hysata) Hysata develops hydrogen electrolyzers aimed at advancing the global transition from fossil fuels to green hydrogen. *Founded* - Wollongong, Australia **$35M** last round Sept 2026
- 50 [**Vaulted Deep** Vaulted Deep is a Houston-based company specializing in carbon removal and waste management.](https://millionrounds.com/company/vaulted-deep) Vaulted Deep is a Houston-based company specializing in carbon removal and waste management. *Founded* 2023 Houston, United States **$35M** last round Sept 2026

**Money raised in 2026** how the list is ranked

**15 November 2026** updated nightly

**Rounds we track** source: Millionrounds

Companies with a round in 2026 that we track, ranked by what they raised this year. Nobody pays to be on a list.

## Who backed them?

Open any company for its rounds and investors, or search the investors who back climate Tech startups that raised in 2026 in the app, with filters, lists and exports.

[Find their investors](https://millionrounds.com/login?join=1&next=/app/investors)[All top lists](https://millionrounds.com/top-lists)

## More climate tech lists

[See all](https://millionrounds.com/top-lists?t=Climate%20Tech)

[*VG* *CF* *S* **Climate Tech startups in the United States** 270 companies · $27B](https://millionrounds.com/top-lists/climate-startups-united-states)[*RG* *AE* *NR* **Climate Tech startups in the United Kingdom** 111 companies · $3.4B](https://millionrounds.com/top-lists/climate-startups-united-kingdom)[*1* *CB* *SC* **Climate Tech startups founded in 2021** 76 companies · $3.0B](https://millionrounds.com/top-lists/climate-startups-founded-2021)[*RP* *R* *M* **Climate Tech startups founded in 2022** 69 companies · $2.0B](https://millionrounds.com/top-lists/climate-startups-founded-2022)[*MC* *BB* *S* **Climate Tech startups founded in 2019** 66 companies · $2.1B](https://millionrounds.com/top-lists/climate-startups-founded-2019)[*SD* *1* *LE* **Climate Tech startups founded in 2020** 64 companies · $2.7B](https://millionrounds.com/top-lists/climate-startups-founded-2020)[*VG* *S* *CF* **Climate Tech startups in the United States that raised in 2026** 62 companies · $17B in 2026](https://millionrounds.com/top-lists/climate-startups-united-states-raised-2026)[*TM* *HG* *N* **Climate Tech startups founded in 2018** 48 companies · $1.4B](https://millionrounds.com/top-lists/climate-startups-founded-2018)

## More lists worldwide

[See all](https://millionrounds.com/top-lists?r=Global)

[*GV* *V* *RP* **Health startups worldwide** 12,811 companies · $81B](https://millionrounds.com/top-lists/health-startups)[*O* *A* *X* **AI startups worldwide** 10,238 companies · $830B](https://millionrounds.com/top-lists/ai-startups)[*GV* *V* *RP* **Biotech startups worldwide** 7,127 companies · $70B](https://millionrounds.com/top-lists/biotech-startups)[*D* *B* *FT* **Big data startups worldwide** 3,812 companies · $220B](https://millionrounds.com/top-lists/big-data-startups)[*AF* *R* *S* **Fintech startups worldwide** 3,200 companies · $94B](https://millionrounds.com/top-lists/fintech-startups)[*O* *A* *B* **AI startups that raised in 2026** 2,922 companies · $540B in 2026](https://millionrounds.com/top-lists/ai-startups-raised-2026)[*FT* *CE* *P* **Energy providers startups worldwide** 2,808 companies · $152B](https://millionrounds.com/top-lists/energy-providers-startups)[*A* *P* *O* **Marketing tech startups worldwide** 2,728 companies · $28B](https://millionrounds.com/top-lists/marketing-tech-startups)