We track 71,000+ companies and rank them dynamically using our Seedtable Score – a score that uses quantitative and qualitative data points to signal the momentum behind a company. We then monitor the list manually leveraging our expertise as founders and investors.
There are 24 start-ups with an aggregate funding of $1.9b. The average funding per company in this subset is $79.1m.
Last update to the database: Feb 18, 2025. See changelog.
Climeworks is a clean technology company that has developed technology for carbon dioxide (CO2) capture from ambient air. It was founded in 2009 and is located in Zurich, Switzerland.
10
Funding Rounds
$876.0m
Money raised
Capturing CO2 from the sky and re-selling it for 2x cheaper
3
Funding Rounds
$12.2m
Money raised
A carbon sequestration technology and bioplastics company based in Huntington Beach, California, founded in 2003, that uses their technology to capture carbon from greenhouse emissions for production of bioplastics.
7
Funding Rounds
$151.6m
Money raised
Carbon Engineering is building technologies to capture CO2 directly from the atmosphere, and to use that CO2 in the synthesis of clean transportation fuels that displace crude oil.
9
Funding Rounds
$119.5m
Money raised
Solidia Technologies is a Piscataway, New Jersey-based technology company offering solutions for using CO2 for manufacturing construction and industrial products.
4
Funding Rounds
$105.0m
Money raised
Carbon Upcycling Technologies Inc. is a Calgary-based carbon capture and storage company developing technologies to turn the carbon into building materials.
3
Funding Rounds
$6.0m
Money raised
Charm Industrial is a company that works to produce reliable, cost-competitive hydrogen from biomass.
3
Funding Rounds
$103.5m
Money raised
Heirloom is a San Francisco-based environmental remediation company founded by Shashank Samala.
3
Funding Rounds
$53.0m
Money raised
Carbon capture technology that reduces industrial CO2 emissions.
3
Funding Rounds
$9.3m
Money raised
CERT is a Toronto-based carbon capture and storage company converting CO2 into chemical feedstocks and carbon-based fuels.
1
Funding Rounds
$1.4m
Money raised
Brilliant Planet is a nature-based system capturing and storing carbon founded in 2013 by Raffael Jovine Ph.D.
2
Funding Rounds
$24.0m
Money raised
ecoLocked is a green concrete manufacturer founded in 2021.
2
Funding Rounds
$6.2m
Money raised
Climate technology focused on carbon removal by accelerated erosion of silicate rock.
1
Funding Rounds
$54.0m
Money raised
Agreena is a soil carbon program for farmers founded in 2018.
3
Funding Rounds
$77.7m
Money raised
44.01 is a mineralisation technology developer founded in 2020 by Talal Hasan.
2
Funding Rounds
$42.0m
Money raised
Direct Air Capture (DAC) technology to remove carbon dioxide.
2
Funding Rounds
$10.0m
Money raised
Isometric is a carbon removal standard and registry.
1
Funding Rounds
$25.0m
Money raised
Carbon capture and storage.
3
Funding Rounds
$166.0m
Money raised
Supercritical is a carbon removal marketplace
3
Funding Rounds
$28.8m
Money raised
C2CNT is a Virginia-based developer of carbon capture and storage technology which uses the captured material to create carbon nanotubes.
1
Funding Rounds
$3.5m
Money raised
SeaO2 is a carbon (CO2) removal technology developer founded in 2021 by Ruben Brands.
1
Funding Rounds
$2.2m
Money raised
Patch helps clients make their businesses carbon neutral .
1
Funding Rounds
$4.5m
Money raised
CUR8 is a market-making platform for carbon removal.
1
Funding Rounds
$6.5m
Money raised
Sustaera, Inc. is a Cary, North Carolina-based company founded in 2021.
1
Funding Rounds
$10.0m
Money raised