Funding round
Chestnut Carbon Seed
Chestnut Carbon, which works in nature-based carbon offset project development in New York, raised $200M in a Seed round announced on 18 Mar 2022, led by Kimmeridge. 1 firm took part, 1 of them already investors. It is Chestnut Carbon's first venture round on record.
$200M
Amount raised
Not disclosed
Post-money valuation
1
Investors
1 lead
Valuation
What this round says about the price
Chestnut Carbon did not disclose a valuation in this round. It is Chestnut Carbon's first venture round on record, in the year it was founded (2022). It is 44% of the $450M Chestnut Carbon has raised in the venture rounds on record. Chestnut Carbon raised again 42 months later: a Series B round of $250M in Sep 2025.
Chestnut Carbon's funding rounds
Chestnut Carbon has 2 venture rounds on record. This one is highlighted.
- Seed this round 18 Mar 2022, led by Kimmeridge $200M
- Series B 16 Sep 2025 $250M
Investors
Who put money in
Kimmeridge led the round. Kimmeridge had backed Chestnut Carbon before.
Lead investor
- backs 4 venture-backed companies existing investor
Use of proceeds
What the money is for
According to the announcement, the money goes to product development.
- Product development
Comparable rounds
How it compares
18 Seed rounds in Environmental Engineering Services within a year either side disclosed an amount; the median was $4.0M, and this round was 49 times the median. The closest in time, other companies' Seed rounds in Environmental Engineering Services:
| Company | Announced | Amount | Post-money | Led by |
|---|---|---|---|---|
| Environmental Engineering Services | 7 Apr 2022 | $3.3M | not disclosed | Burnt Island Ventures |
| Environmental Engineering Services | 24 May 2022 | $4.1M | not disclosed | Octopus Ventures |
| Environmental Engineering Services | 23 Jun 2022 | $17M | not disclosed | The Ecosystem Integrity Fund and The Jeremy and Hannelore Grantham Environmental Trust |
| Environmental Engineering Services | 10 Nov 2021 | $8.0M | not disclosed | General Catalyst |
| Environmental Engineering Services | 5 Jul 2022 | $2.5M | not disclosed | XAnge |
| Environmental Engineering Services | 21 Oct 2021 | $4.7M | not disclosed | Giant Ventures |
| Environmental Engineering Services | 11 Oct 2021 | $3.0M | not disclosed | not named |
| Environmental Engineering Services | 29 Oct 2021 | $750K | not disclosed | Artesian |
Sources
Where this comes from
Reported by 1 source.
Questions
Frequently asked
How much did Chestnut Carbon raise in its Seed round?
Chestnut Carbon raised $200M in its Seed round, announced in Mar 2022.
Who led Chestnut Carbon's Seed round?
Kimmeridge led it.
What was Chestnut Carbon's valuation at the Seed round?
It was not disclosed.
How does it compare with other Seed rounds in Environmental Engineering Services?
18 Seed rounds in Environmental Engineering Services within a year either side disclosed an amount; the median was $4.0M, and this round was 49 times the median.
Did Chestnut Carbon raise again after this round?
Yes: a Series B round in Sep 2025 of $250M.