The Carbon Drawdown Initiative is an impact investing firm that focuses on early-stage investments in startups developing innovative carbon dioxide removal (CDR) technologies to accelerate the growth of the CDR industry. The firm aims to bridge critical funding gaps and assumes risks to advance the science, technology, and organizations essential for negative emissions.
100% of their portfolio is in Climate & Energy. Their most common stage is seed (100% of deals). Average disclosed round size is $4.9M (across 3 rounds with reported amounts).
Portfolio
3
Fund Size
—
Top Stage
Seed
Last 12 Mo
0
Portfolio Breakdown
Stage Distribution
Investment Activity
DealsAvg Round Size
Portfolio
3 investments
| Company | Round | Amount | Date |
|---|---|---|---|
 Everest Carbon | Seed | $3M | Dec 2024 |
 CREW Carbon | Seed | $5.3M | Oct 2024 |
 Lithos Carbon | Seed | $6.3M | Oct 2022 |
Top Co-Investors
Carbon Removal Partners2 shared
Ponderosa2 shared
Union Square Ventures1 shared
Greylock Partners1 shared
Bain Capital Ventures1 shared
Fall Line Capital1 shared
Cavallo Ventures1 shared
Counteract1 shared
ReGen Ventures1 shared
Animo Ventures1 shared
Connecticut Innovations1 shared
Newlab1 shared
Echo River Capital1 shared
Last updated: 10 April 2026