Top list · Worldwide

Carbon removal startups worldwide

44 carbon removal startups worldwide have raised money in rounds we track. These are the 44 that have raised the most, $1.0B between them, with the United States the most common home.

$1.0Braised by these 44
44on our record in all
United Statesmost common home
Chestnut Carbonraised the most
  1. 1Chestnut CarbonChestnut Carbon is an environmental engineering company that offers carbon removal and project development services.

    Chestnut Carbon is an environmental engineering company that offers carbon removal and project development services.

    Founded 2021New York, United States$250Mlast round Sept 2025
  2. 2MombakMOMBAK is a Brazilian carbon removal startup founded in 2021 by Gabriel Silva and Peter Fernandez, headquartered in São Paulo.

    MOMBAK is a Brazilian carbon removal startup founded in 2021 by Gabriel Silva and Peter Fernandez, headquartered in São Paulo.

    Founded 2021Sao Paulo, Brazil$86Mlast round Sept 2026
  3. 3CarbonexCarbonex.world specializes in Carbon Removal Services, as well as the Preservation and Restoration of Critical Ecosystems.

    Carbonex.world specializes in Carbon Removal Services, as well as the Preservation and Restoration of Critical Ecosystems.

    Founded 2023Tokyo, France$84Mlast round Jul 2018
  4. 4Vaulted 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$67Mlast round Sept 2026
  5. 5280 Earth280 Earth is scaling carbon removal technology to meet the climate crisis head on.

    280 Earth is scaling carbon removal technology to meet the climate crisis head on.

    Founded 2018The Dalles, United States$50Mlast round May 2024
  6. 6IsometricIsometric is a London-based certification platform focused on the industrial economy, specializing in carbon removal registry and science services.

    Isometric is a London-based certification platform focused on the industrial economy, specializing in carbon removal registry and science services.

    Founded 2022London, United Kingdom$50Mlast round Sept 2026
  7. 7Deep SkyDeep Sky is a developer of a CO2 removal infrastructure designed to reduce the carbon footprint.

    Deep Sky is a developer of a CO2 removal infrastructure designed to reduce the carbon footprint.

    Founded 2022Montreal, Canada$40Mlast round Jun 2026
  8. 8PlanetaryPlanetary develops ocean-based carbon removal technology to accelerate the natural carbon cycle.

    Planetary develops ocean-based carbon removal technology to accelerate the natural carbon cycle.

    Founded 2019Switzerland$35Mlast round Apr 2026
  9. 9ClimeworksClimeworks AG is a Swiss environmental technology company specializing in Carbon Dioxide Removal (CDR) through its innovative Direct Air Capture (DAC) technology.

    Climeworks AG is a Swiss environmental technology company specializing in Carbon Dioxide Removal (CDR) through its innovative Direct Air Capture (DAC) technology.

    Founded 2009Opfikon, Switzerland$34Mlast round Aug 2018
  10. 10Mangrove SystemsMangrove Systems is a Toronto-based software company specializing in digital measurement, reporting, and verification (dMRV) solutions for carbon dioxide remova

    Mangrove Systems is a Toronto-based software company specializing in digital measurement, reporting, and verification (dMRV) solutions for carbon dioxide remova

    Founded 2002Toronto, United States$33Mlast round Aug 2006
  11. 11SpiritusSpiritus is a climate technology company based in White Rock, New Mexico, specializing in Direct Air Capture (DAC) technology aimed at low-cost carbon dioxide r

    Spiritus is a climate technology company based in White Rock, New Mexico, specializing in Direct Air Capture (DAC) technology aimed at low-cost carbon dioxide r

    Founded 2021Zagreb, Croatia$30Mlast round Mar 2025
  12. 12GraphyteCombining photosynthesis with practical engineering, Graphyte's Carbon Casting technology provides an immediate pathway for billions of tons of low-cost, durabl

    Combining photosynthesis with practical engineering, Graphyte's Carbon Casting technology provides an immediate pathway for billions of tons of low-cost, durabl

    Founded -Memphis, United States$30Mlast round Jul 2024
  13. 13NovocarboNovocarbo GmbH is a German sustainability technology company based in Hamburg, founded in 2017 by Caspar Ziegner.

    Novocarbo GmbH is a German sustainability technology company based in Hamburg, founded in 2017 by Caspar Ziegner.

    Founded 2017Hamburg, Germany$27Mlast round Mar 2024
  14. 14Mast ReforestationMast Reforestation is a leading company in North America focused on post-wildfire reforestation and carbon removal.

    Mast Reforestation is a leading company in North America focused on post-wildfire reforestation and carbon removal.

    Founded 2016Seattle, United States$25Mlast round Feb 2025
  15. 15GigablueGigablue 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
  16. 16Carbo CultureCarbo Culture is a Finnish-American climate technology company focused on carbon dioxide removal through the production of stable biochar.

    Carbo Culture is a Finnish-American climate technology company focused on carbon dioxide removal through the production of stable biochar.

    Founded 2017Helsinki, Finland$18Mlast round Nov 2023
  17. 17SupercriticalSupercritical Tech Ltd., based in London, is a carbon removal marketplace founded in 2021.

    Supercritical Tech Ltd., based in London, is a carbon removal marketplace founded in 2021.

    Founded -London, United Kingdom$13Mlast round May 2026
  18. 18CarbonPoolCarbonPool is an environmental services and InsurTech startup based in Zurich, founded in 2023.

    CarbonPool is an environmental services and InsurTech startup based in Zurich, founded in 2023.

    Founded 2023Zurich, Switzerland$12Mlast round Jan 2024
  19. 19Brilliant PlanetBrilliant Planet is a climate technology company based in London, founded in 2013.

    Brilliant Planet is a climate technology company based in London, founded in 2013.

    Founded 2013Harpenden, United Kingdom$12Mlast round Apr 2022
  20. 20Alt CarbonAlt Carbon is a Kolkata-based deep-tech science and data company founded in 2023.

    Alt Carbon is a Kolkata-based deep-tech science and data company founded in 2023.

    Founded 2023Bengaluru, India$12Mlast round May 2025
  21. 21EquaticEquatic uses a seawater electrolysis process that enhances the ocean's capacity to absorb and store large quantities of carbon dioxide.

    Equatic uses a seawater electrolysis process that enhances the ocean's capacity to absorb and store large quantities of carbon dioxide.

    Founded 2021Torrance, United States$12Mlast round Aug 2025
  22. 22BrineworksBrineworks is a climate technology startup based in Amsterdam, founded in 2023.

    Brineworks is a climate technology startup based in Amsterdam, founded in 2023.

    Founded 2023Amsterdam, Netherlands$8.0Mlast round Sept 2025
  23. 23CarbaCarba, Inc.

    Carba, Inc.

    Founded 2021Minneapolis, United States$6.0Mlast round Dec 2025
  24. 24CarbicreteCarbiCrete is a carbon removal technology that develops innovative, low-cost building solutions that reduce greenhouse gas emissions.

    CarbiCrete is a carbon removal technology that develops innovative, low-cost building solutions that reduce greenhouse gas emissions.

    Founded 2016Montréal, Canada$5.7Mlast round Jun 2026
  25. 25ReCarberReCarber is a Swedish climate technology company founded in 2023, based in Stockholm.

    ReCarber is a Swedish climate technology company founded in 2023, based in Stockholm.

    Founded 2023Stockholm, Sweden$5.3Mlast round Feb 2025
  26. 26Octavia CarbonOctavia Carbon is a Direct Air Capture (DAC) company based in Kenya.

    Octavia Carbon is a Direct Air Capture (DAC) company based in Kenya.

    Founded 2022Kenya$5.0Mlast round Oct 2024
  27. 27VycarbVycarb is a climate technology company based in Brooklyn, founded in 2022.

    Vycarb is a climate technology company based in Brooklyn, founded in 2022.

    Founded 2022United States$5.0Mlast round Oct 2025
  28. 28KlimateKlimate is a Copenhagen-based B2B Carbon Asset Manager founded in 2020.

    Klimate is a Copenhagen-based B2B Carbon Asset Manager founded in 2020.

    Founded 2020Copenhagen, Denmark$3.7Mlast round Oct 2023
  29. 29CarbonairesCarbonaires is a London-based carbon finance and asset management company founded in 2021.

    Carbonaires is a London-based carbon finance and asset management company founded in 2021.

    Founded 2021London, United Kingdom$3.7Mlast round Jul 2026
  30. 30CovalentCovalent Climate Tech, Inc.

    Covalent Climate Tech, Inc.

    Founded 2021San Francisco, Canada$3.6Mlast round Jun 2024
  31. 31BIOSORRABIOSORRA is a female-led climate-tech company based in Nairobi, Kenya, founded in 2021-2022.

    BIOSORRA is a female-led climate-tech company based in Nairobi, Kenya, founded in 2021-2022.

    Founded 2021Nairobi, United States$3.5Mlast round Oct 2025
  32. 32CellaCella is a New York-based climate technology startup founded in 2022, focused on permanent carbon dioxide removal through geologic carbon sequestration and carb

    Cella is a New York-based climate technology startup founded in 2022, focused on permanent carbon dioxide removal through geologic carbon sequestration and carb

    Founded -New York, United States$3.3Mlast round Jun 2023
  33. 33CotierraCotierra is a Swiss-based climate-tech startup founded in July 2023 and headquartered in Zürich, Switzerland.

    Cotierra is a Swiss-based climate-tech startup founded in July 2023 and headquartered in Zürich, Switzerland.

    Founded 2023Zuerich, Switzerland$3.0Mlast round Sept 2026
  34. 34autarkizeAutarkize is a climate-tech company based in Bavaria, Germany, founded in 2022.

    Autarkize is a climate-tech company based in Bavaria, Germany, founded in 2022.

    Founded 2022Biessenhofen, Germany$2.5Mlast round Oct 2024
  35. 35GlanrisGlanris is a climate-technology company based in Olive Branch, Mississippi, founded in 2018.

    Glanris is a climate-technology company based in Olive Branch, Mississippi, founded in 2018.

    Founded 2019Olive Branch, United States$1.8Mlast round Aug 2022
  36. 36clearing zero carbonclearing zero carbon is an innovtive company providing the society with low-cost carbon removal technology solutions using AI.

    clearing zero carbon is an innovtive company providing the society with low-cost carbon removal technology solutions using AI.

    Founded -China$1.4Mlast round May 2023
  37. 37carbonABLECarbonable is a climate-tech and carbon management platform founded in 2021, based in Grenoble and Paris, France.

    Carbonable is a climate-tech and carbon management platform founded in 2021, based in Grenoble and Paris, France.

    Founded 2021Grenoble, France$1.2Mlast round Mar 2023
  38. 38CO280CO280 Solutions Inc.

    CO280 Solutions Inc.

    Founded 2022Vancouver, Canada$727Klast round Jul 2024
  39. 39HyveGeoHyveGeo strives to create a more sustainable future with carbon dioxide removal and negative emissions technologies.

    HyveGeo strives to create a more sustainable future with carbon dioxide removal and negative emissions technologies.

    Founded -Cambridge, United Kingdom$636Klast round Jun 2026
  40. 40TreeconomyTreeconomy is a London-based greentech company founded in 2018, dedicated to combating climate change and restoring biodiversity.

    Treeconomy is a London-based greentech company founded in 2018, dedicated to combating climate change and restoring biodiversity.

    Founded 2018London, United Kingdom$633Klast round Mar 2022
  41. 41CarbonPilotCarbonPilot helps companies implement and verify carbon removal projects.

    CarbonPilot helps companies implement and verify carbon removal projects.

    Founded 2023-$425Klast round Jan 2024
  42. 42EarthbancEarthbanc is a climate and agricultural technology company based in Stockholm, Sweden.

    Earthbanc is a climate and agricultural technology company based in Stockholm, Sweden.

    Founded 2019Stockholm, Sweden$350Klast round Dec 2022
  43. 43Nina EnergyNina Energy Limited is a clean-tech company based in Quito, Ecuador, founded in 2021.

    Nina Energy Limited is a clean-tech company based in Quito, Ecuador, founded in 2021.

    Founded 2025Quito, Ecuador$268Klast round Oct 2025
  44. 44Tao ClimateTao Climate is a climate FinTech startup solving the hardest part of carbon removal: trust.

    Tao Climate is a climate FinTech startup solving the hardest part of carbon removal: trust.

    Founded 2022Dublin, Ireland$258Klast round Feb 2025
Total fundinghow the list is ranked
15 November 2026updated nightly
Rounds we tracksource: Millionrounds

Companies whose own description names this theme, ranked by the total they have raised in rounds we hold. Nobody pays to be on a list.

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