Top list · Worldwide
Climate Tech startups founded in 2021
76 climate Tech startups founded in 2021 have raised money in rounds we track. These are the 50 that have raised the most, $3.0B between them, with the United States the most common home.
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1KOMMA5°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 - 2
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$380Mlast round Feb 2026 - 3
Summit Carbon SolutionsSummit Carbon Solutions (SCS) is a U.S.-based decarbonization platform headquartered in Ames, Iowa.Summit Carbon Solutions (SCS) is a U.S.-based decarbonization platform headquartered in Ames, Iowa.
Founded 2021Ames, United States$300Mlast round May 2022 - 4
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$295Mlast round Aug 2026 - 5
Focused 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 - 6
Chestnut 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 - 7Just ClimateFounded 2021United Kingdom$175Mlast round Mar 2025
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Mitra ChemMitra Chem is an AI-native manufacturer of lithium-ion battery materials, founded in 2021 and headquartered in Mountain View, California.Mitra Chem is an AI-native manufacturer of lithium-ion battery materials, founded in 2021 and headquartered in Mountain View, California.
Founded 2021Mountain View, United States$91Mlast round Jun 2025 - 9
MombakMOMBAK 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 - 10
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$64Mlast round Jul 2026 - 11
AvnosAvnos, Inc.Avnos, Inc.
Founded 2021Los Angeles, United States$53Mlast round Nov 2025 - 12
InvertInvert is a software startup that specializes in Bioprocess AI SaaS, focusing on enhancing biomanufacturing and bio-industrial operations.Invert is a software startup that specializes in Bioprocess AI SaaS, focusing on enhancing biomanufacturing and bio-industrial operations.
Founded 2021San Francisco, Canada$40Mlast round Jul 2024 - 13
CubicPVCubicPV is a solar manufacturing company that produces wafers and tandem modules.CubicPV is a solar manufacturing company that produces wafers and tandem modules.
Founded 2021Bedford, United States$33Mlast round Jun 2023 - 14
Capture6Capture6 is a climate technology company based in Berkeley, California, and Rotorua, New Zealand.Capture6 is a climate technology company based in Berkeley, California, and Rotorua, New Zealand.
Founded 2021Berkeley, United States$28Mlast round Mar 2025 - 15
QoriumReal Leather, ReinventedReal Leather, Reinvented
Founded 2021Maastricht, Netherlands$25Mlast round Nov 2025 - 16
Stargate HydrogenStargate Hydrogen Solutions offers turn-key electrolysis solutions for the production of green hydrogen with renewable energy.Stargate Hydrogen Solutions offers turn-key electrolysis solutions for the production of green hydrogen with renewable energy.
Founded 2021Tallinn, Estonia$24Mlast round Sept 2026 - 17
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$21Mlast round Apr 2026 - 18
carbmeecarbmee is an AI-powered enterprise carbon management software company based in Berlin, Germany, founded in 2021.carbmee is an AI-powered enterprise carbon management software company based in Berlin, Germany, founded in 2021.
Founded 2021Berlin, Germany$21Mlast round Dec 2024 - 19
NovoHydrogenNovoHydrogen is experienced at deploying and commercializing successful innovative energy transition technologies.NovoHydrogen is experienced at deploying and commercializing successful innovative energy transition technologies.
Founded 2021United States$20Mlast round Oct 2023 - 20
TULUTULU is a PropTech company founded in 2019 and headquartered in New York, NY, with additional offices in Tel Aviv, Israel, and London, UK.TULU is a PropTech company founded in 2019 and headquartered in New York, NY, with additional offices in Tel Aviv, Israel, and London, UK.
Founded 2021New York, United States$17Mlast round Nov 2025 - 21
FaircraftFaircraft is a biotechnology startup based in Paris, founded in 2021.Faircraft is a biotechnology startup based in Paris, founded in 2021.
Founded 2021Paris, France$16Mlast round Nov 2024 - 22
Chloris GeospatialChloris Geospatial is a Boston-based climate-tech software company founded in 2021.Chloris Geospatial is a Boston-based climate-tech software company founded in 2021.
Founded 2021Boston, United States$15Mlast round Jun 2025 - 23
NoriNori serves as an intelligent digital life organizer, bolstered by a team of skilled virtual assistants.Nori serves as an intelligent digital life organizer, bolstered by a team of skilled virtual assistants.
Founded 2021United States$14Mlast round Dec 2025 - 24
PrediumPredium is a Munich-based PropTech company founded in 2021, specializing in an AI-powered Real Estate Intelligence Platform.Predium is a Munich-based PropTech company founded in 2021, specializing in an AI-powered Real Estate Intelligence Platform.
Founded 2021Munich, Germany$14Mlast round Nov 2024 - 25
EquaticEquatic 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 - 26
NEU Battery MaterialsLithium battery recycling companyLithium battery recycling company
Founded 2021Singapore, Singapore$11Mlast round Oct 2026 - 27
Rhizocore TechnologiesRhizocore Technologies Ltd is a UK-based ecological innovation and biotechnology company focused on mycorrhizal fungi products.Rhizocore Technologies Ltd is a UK-based ecological innovation and biotechnology company focused on mycorrhizal fungi products.
Founded 2021Edinburgh, United Kingdom$11Mlast round Nov 2025 - 28
hexafarmshexafarms GmbH is a Berlin-based Ag-Tech startup focused on enhancing indoor commercial food production.hexafarms GmbH is a Berlin-based Ag-Tech startup focused on enhancing indoor commercial food production.
Founded 2021Berlin, Germany$9.5Mlast round Oct 2026 - 29
MetafoodxMetafoodx is an AI-driven food technology company based in San Jose, California.Metafoodx is an AI-driven food technology company based in San Jose, California.
Founded 2021San Jose, United States$9.4Mlast round May 2025 - 30
GreenSpark SoftwareGreenSpark Software offers an end-to-end, web-based software solution to modernize and digitize the metal recycling industry.GreenSpark Software offers an end-to-end, web-based software solution to modernize and digitize the metal recycling industry.
Founded 2021New York, United States$9.4Mlast round Jan 2024 - 31
Emulsion Flow TechnologiesEmulsion Flow Technologies Ltd.Emulsion Flow Technologies Ltd.
Founded 2021Ibaraki, Japan$9.2Mlast round Mar 2024 - 32
Green GravityGreen Gravity is an Australian clean technology company founded in 2021, based in North Wollongong, New South Wales.Green Gravity is an Australian clean technology company founded in 2021, based in North Wollongong, New South Wales.
Founded 2021Wollongong, Australia$9.0Mlast round Oct 2024 - 33
Uplift360Uplift360 is a cleantech startup focused on developing chemical-based technologies for recycling and reusing advanced materials, particularly in the defence andUplift360 is a cleantech startup focused on developing chemical-based technologies for recycling and reusing advanced materials, particularly in the defence and
Founded 2021Luxembourg City, Luxembourg$8.7Mlast round Feb 2026 - 34
cimicoCimico is a biotechnology startup based in San Sebastián, Spain, founded in 2019.Cimico is a biotechnology startup based in San Sebastián, Spain, founded in 2019.
Founded 2021San Sebastian, Spain$7.9Mlast round Jul 2023 - 35
TerracleTerracle is a South Korean environmental technology company specializing in the chemical recycling of challenging plastics, such as PET, Nylon, and PU.Terracle is a South Korean environmental technology company specializing in the chemical recycling of challenging plastics, such as PET, Nylon, and PU.
Founded 2021South Korea$7.9Mlast round Mar 2024 - 36
CarbonFarmCarbonFarm is a climate-tech and agri-tech startup founded in 2022 and based in Nanterre, France.CarbonFarm is a climate-tech and agri-tech startup founded in 2022 and based in Nanterre, France.
Founded 2021Paris, France$7.8Mlast round Oct 2026 - 37
Renew RiskRenew Risk is a London-based InsurTech and FinTech company founded in 2021.Renew Risk is a London-based InsurTech and FinTech company founded in 2021.
Founded 2021London, United Kingdom$7.1Mlast round Feb 2025 - 38
Kodama SystemsRestoring forests for future generationsRestoring forests for future generations
Founded 2021Sonora, United States$7.0Mlast round Oct 2025 - 39
Connect EarthConnect Earth is a London-based environmental data and climate fintech company founded in September 2021.Connect Earth is a London-based environmental data and climate fintech company founded in September 2021.
Founded 2021London, United Kingdom$6.5Mlast round Dec 2025 - 40
veritreeVeritree is a Vancouver-based climate tech startup founded in 2021.Veritree is a Vancouver-based climate tech startup founded in 2021.
Founded 2021Vancouver, Canada$6.5Mlast round May 2025 - 41
Carbon EquityCarbon Equity is a climate investing platform for alternative investments.Carbon Equity is a climate investing platform for alternative investments.
Founded 2021Amsterdam, Netherlands$6.4Mlast round Oct 2023 - 42ElysianElysian provides deathcare products and solutions with a low carbon footprint, sustainably sourced, and radically transparent pricing.
Elysian provides deathcare products and solutions with a low carbon footprint, sustainably sourced, and radically transparent pricing.
Founded 2021United States$6.0Mlast round Sept 2025 - 43
SCOP3SCOP3 is a mission-driven startup based in Montpellier, France, founded in 2021 by Sophie Scantamburlo-Contreras and Frédéric Salles.SCOP3 is a mission-driven startup based in Montpellier, France, founded in 2021 by Sophie Scantamburlo-Contreras and Frédéric Salles.
Founded 2021Perols, France$5.7Mlast round May 2024 - 44
Insight TerraInsight Terra is a platform that helps in real-time monitoring and risk management of mine tailings and water.Insight Terra is a platform that helps in real-time monitoring and risk management of mine tailings and water.
Founded 2021London, South Africa$5.7Mlast round Jan 2025 - 45
SugaROxSugaROx is a UK-based agri-biotech company founded in 2021 through a collaboration between the University of Oxford and Rothamsted Research.SugaROx is a UK-based agri-biotech company founded in 2021 through a collaboration between the University of Oxford and Rothamsted Research.
Founded 2021Harpenden, United Kingdom$4.7Mlast round May 2026 - 46
BriinkBriink is a Berlin-based AI software company founded in 2021, specializing in tools for environmental, social, and governance (ESG) and sustainable finance teams.Briink is a Berlin-based AI software company founded in 2021, specializing in tools for environmental, social, and governance (ESG) and sustainable finance teams.
Founded 2021Berlin, Germany$4.3Mlast round Sept 2024 - 47
Oort EnergyOort Energy is a UK-based technology company focused on designing, developing, and manufacturing advanced hydrogen electrolyser systems.Oort Energy is a UK-based technology company focused on designing, developing, and manufacturing advanced hydrogen electrolyser systems.
Founded 2021London, United Kingdom$3.7Mlast round Aug 2025 - 48
BIOSORRABIOSORRA 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 - 49
NeoCarbonNeoCarbon is a Berlin-based climate tech company founded in 2021.NeoCarbon is a Berlin-based climate tech company founded in 2021.
Founded 2021Berlin, Germany$3.5Mlast round Dec 2023 - 50
Allegro EnergyAllegro Energy is a developer of energy storage technology focus on sustainable solutions for a zero carbon economy.Allegro Energy is a developer of energy storage technology focus on sustainable solutions for a zero carbon economy.
Founded 2021Newcastle, Australia$3.5Mlast round Jul 2025
Hamburg, Germany
Dallas, United States
United Kingdom
Sao Paulo, Brazil
San Francisco, Canada
Maastricht, Netherlands
Tallinn, Estonia
Paris, France
Singapore, Singapore
Ibaraki, Japan
Wollongong, Australia
Luxembourg City, Luxembourg
San Sebastian, Spain
South Korea
London, South AfricaCompanies founded in 2021 whose funding rounds we classed in this sector, ranked by the total they have raised in rounds we hold. Nobody pays to be on a list.
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VGCFSClimate Tech startups in the United States270 companies · $27BVGSCFClimate Tech startups that raised in 2026195 companies · $20B in 2026
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NRClimate Tech startups in the United Kingdom111 companies · $3.4B
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MClimate Tech startups founded in 202269 companies · $2.0B
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SClimate Tech startups founded in 201966 companies · $2.1B
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LEClimate Tech startups founded in 202064 companies · $2.7BVGSCFClimate Tech startups in the United States that raised in 202662 companies · $17B in 2026
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NClimate Tech startups founded in 201848 companies · $1.4BMore lists worldwide
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RPHealth startups worldwide12,811 companies · $81B
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XAI startups worldwide10,238 companies · $830BGVVRPBiotech startups worldwide7,127 companies · $70B
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FTBig data startups worldwide3,812 companies · $220BAF
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SFintech startups worldwide3,200 companies · $94BOABAI startups that raised in 20262,922 companies · $540B in 2026FT
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PEnergy providers startups worldwide2,808 companies · $152B
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OMarketing tech startups worldwide2,728 companies · $28B