
What they do:
Turning food waste into Biochar to remove CO2 from the atmsophere
Quick facts:
This list has 12 startups and was last updated on Oct 15, 2026. 1 of them are hiring right now. Largest teams: Releaf Earth, Pachama, and SINAI.

What they do:
Turning food waste into Biochar to remove CO2 from the atmsophere
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What they do:
Enterprise software to quantify cost-effective decarbonization…
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HQ: San Francisco, CA, United States

What they do:
Carbon markets platform and solutions
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HQ: London, United Kingdom

What they do:
We make carbon negative roads
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What they do:
Building systems to remove carbon dioxide from air at industrial scale
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HQ: San Francisco, CA, United States

What they do:
We design and build microbes to make chemicals greener at lower cost.
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HQ: San Francisco, CA, United States

What they do:
Biodegradable and carbon neutral textiles, engineered from food waste.
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What they do:
Growing seaweed to stabilize the climate.
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HQ: San Francisco, CA, United States

What they do:
Restoring nature to solve climate change.
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HQ: San Francisco, CA, United States

What they do:
Affordable and verified direct air carbon capture and storage
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HQ: Denver, CO, United States

What they do:
Radically reducing capital costs and build time for direct air capture
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HQ: San Francisco, CA, United States

What they do:
API to measure and eliminate carbon emissions
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HQ: San Francisco, CA, United States
There are 12 startups on this list, last updated on Oct 15, 2026.
1 of them are hiring right now, including AirMyne.
By team size: Releaf Earth (100 employees), Pachama (85 employees), and SINAI (50 employees).