Alternatives to Green Bunkers
The top Climate Tech companies similar to Green Bunkers, ranked by relevance (named competitors first, then how closely their sectors overlap) and our 0-100 AI-readiness score. Each links to a full profile with funding and team.
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Stormfisher62Climate TechLondon, Canada$430.0MDevelops, owns, and operates industrial-scale facilities producing green hydrogen derived e-Fuels.
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Mitti Labs59Climate TechBengaluru, India$9.5MClimate-tech startup making Asia's rice farming more water-resilient by combining satellite imagery, AI, and field operations to reduce water usage and methane emissions.
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Xpansiv57Climate TechSan Francisco, United States$100.0MGlobal commodity data and analytics platform for ESG and energy markets.
- Website TETerraGen39Climate TechCalgary, Canada$10.0M
Carbon capture and utilization technology for industrial emissions.
- Website SPSpark Cleantech39Climate TechCambridge, United Kingdom$34.6M
Spark Cleantech develops advanced catalysts and processes for sustainable chemical production.
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Carbon capture and utilization technologies for industrial emissions.
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CarbonClick48Climate TechAuckland, New ZealandCarbonClick provides a platform for businesses to offset their carbon emissions.
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South Pole63Climate TechZurich, Switzerland$20.0MGlobal climate solutions provider helping organizations achieve net-zero emissions.
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Ecosystem Restoration Standard57Climate TechSan Francisco, United States$37.1MGlobal standard for high-integrity conservation and restoration projects on carbon markets.
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Electra56Climate TechTel Aviv, Israel$301.0MElectra is decarbonizing the iron and steel industry with clean-iron electrowinning technology.
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Element Zero55Climate TechBoston, United States$10.0MGreen materials platform using patented electroreduction to produce pure metals with zero carbon emissions.
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Greenlyte54Climate TechEssen, Germany$15.0MDirect air capture startup producing CO2 and hydrogen for e-fuels and negative emissions.
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CoGo51Climate TechLondon, United Kingdom$1.8MPlatform for home and vehicle electrification, offering personalized recommendations and supplier connections.
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Flowcarbon49Climate TechNew York, United States$70.0MFlowcarbon provides bespoke capital solutions and project finance expertise for innovative companies in frontier industries like infrastructure and decarbonization.
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Carbon Clean49Climate TechLondon, United Kingdom$195.0MIndustrial carbon capture technology company offering modular CycloneCC systems that retrofit onto existing industrial emitters.
- Website UNUndo49Climate TechLondon, United Kingdom$49.0M
Carbon removal services using enhanced rock weathering to combat climate change.
- Website CACarbon Upcycling Technologies Inc.47Climate TechCalgary, Canada$10.0M
Calgary-based startup developing technology to convert captured CO2 into valuable building materials.
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Apolownia46Climate TechParis, France$1.1MDeveloping high-integrity coastal ecosystem restoration projects.
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Comerc Energia66EnergySão Paulo, Brazil$589.0MComerc Energia provides comprehensive energy and decarbonization solutions for the free energy market.
- Website Frost Methane Labs Co.46Climate TechSan Francisco, United States$1.0M
Frost Methane helps livestock farms reduce methane emissions from manure ponds and generate revenue from carbon credits.
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Climeworks45Climate TechZurich, Switzerland$162.0MDirect air capture technology to remove CO2 from the atmosphere and store it permanently.
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REplace44Climate Tech$2.1MA digital marketplace connecting businesses with vetted renewable energy providers, financing, and expertise.
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C-Capture43Climate TechLeeds, United Kingdom$26.1MDevelops a novel, low-cost solvent-based carbon capture technology to decarbonize industrial emissions.
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ArtIn Energy62EnergyTampa, United States$255.0MEnergy technology company focused on innovative solutions.
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Varaha40Climate TechBengaluru, India$30.5MHelping farmers earn carbon credits through regenerative agriculture and nature-based solutions across South Asia.
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Stegra57GreenTechBoden, Sweden$8.2BGreen-tech startup building the world's largest green-steel plant.
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NetZeroNitrogen36Climate TechCambridge, United States$6.6MDeveloping novel catalysts and processes for sustainable nitrogen fertilizer production.
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215036Climate TechLondon, United Kingdom$63.0MClimate tech venture capital firm investing in technologies that reshape cities for sustainability.
- Website CACarbonZero36Climate TechLondon, United Kingdom$1.0M
Direct air capture technology for atmospheric CO2 removal.
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Green Swan Lab54MarketplaceTel Aviv, Israel$2.5MDigital platform connecting ecosystem players to solve environmental challenges using AI.
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Coolbrook53Industrial TechnologyHelsinki, Finland$100.0MElectrifying the global steel industry with innovative technology.
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DevvStream53Carbon ManagementCalgary, Canada$6.0MA carbon management and environmental-asset monetization firm.
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Aemetis15Climate TechCupertino, United StatesAemetis is a renewable fuels and biochemicals company focused on low-carbon solutions like RNG and SAF.
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Mombak54Climate TechMiami, United StatesMombak is a carbon removal company focused on planting native trees.
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D-CRBN49Carbon CaptureAntwerp, Belgium$19.0MElectrified plasma technology to recycle CO2 and hydrocarbons into circular carbon molecules.
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Kvasir Technologies47Renewable EnergyFredericia, Denmark$10.0MDanish biofuel startup developing a patented process to convert lignin-based residues into climate-neutral marine fuels.
- Website Planetair8Climate Tech
A Canadian non-profit carbon offset provider offering climate-neutral certification and sustainability solutions.
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Greencognition6Climate TechGreencognition explores green technology solutions, integrating AI for sustainable innovations.
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Utility Global, .42Climate TechGlendale, United StatesAchieve true economic industrial decarbonization through advanced waste-to-value solutions.
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Crusoe Inc56Climate TechLouisville, United States$435.0MCrusoe uses stranded energy to power high-performance computing for AI and blockchain.
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Nordic Salt Cycle55Climate TechHelsinki, Finland$41.8MDeveloping a novel, sustainable process for extracting valuable minerals from industrial wastewater.
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Greenpixie55Climate TechLondon, United Kingdom$6.0MSustainability intelligence for cloud and AI infrastructure.
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OXCCU55Climate TechOxford, United Kingdom$23.3MCarbon capture technology converting CO2 into valuable chemicals and fuels.
- Website MAMatter.54Climate TechBristol, United Kingdom$10.0M
Microplastic technology and innovation company capturing, harvesting, and recycling microplastics from wastewater and textiles.
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Radify Metals53Climate TechSan Francisco, USA$4.5MDeveloping pollution-free metal processing technology.
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Carbonfund38Climate TechChevy Chase, United StatesNon-profit empowering individuals and businesses to reduce and offset their carbon footprint.
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CarbonRun53Climate TechCalgary, Canada$500KCarbon removal solutions by enhancing river alkalinity to sequester carbon dioxide and restore river ecosystems.
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Watershed53Climate TechSan Francisco, United States$130.0M - Website
LanzaTech53Climate TechSkokie, United States$862.6MLanzaTech transforms waste carbon emissions into valuable products like ethanol, SAF, and chemicals.
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Uravu Labs53Climate TechBengaluru, India$2.3MClimate-tech startup developing technology to extract high-quality drinking water from atmospheric moisture using renewables.
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Ark Climate51Climate TechBerlin, Germany$2.3MArk Climate empowers municipalities to accelerate climate action.
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Membrane Technology & Research51Climate TechNewark, USA$27.0MMembrane technology for carbon capture, hydrogen, and natural gas.
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Brineworks49Climate TechAmsterdam, Netherlands$106.7MClimate tech company developing Direct Air Capture and hydrogen co-production for affordable e-fuels.
- Website DEDeepSky Corp.34Climate TechMontreal, Canada
A company focused on direct air carbon capture projects.
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Orsted29EnergyFredericia, Denmark$9.4BGlobal leader in offshore wind power, driving the transition to renewable energy.
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Norsepower48Climate TechHelsinki, Finland$498.2MDevelops and manufactures rotor sails for wind-assisted propulsion on ships.
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Shayp48Climate TechBrussels, Belgium$1.5MAI-driven water monitoring company
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Breathe Cities48Climate TechLondon, United Kingdom$45.0MA global initiative focused on improving air quality and safeguarding public health in urban environments.
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Norsk e-Fuel32Climate TechOslo, NorwayIndustrial-scale production of synthetic aviation fuels from CO2 and water.
- Website KIKiln47Climate TechLondon, United Kingdom$2.0M
Carbon accounting and ESG reporting platform for businesses.
Compare Green Bunkers head to head
Side by side on what each one does, what it costs, and what real users report.

