- Caterpillar Ventures
- Cemex Ventures
- CITIC Capital
- Cleanhill Partners
- Climactic
- Climate Adaptive Infrastructure
- Climate Asset Management
- Climate Innovation Capital
- Climate Investment (CI)
- Collaborative Fund
- Collateral Good
- Counteract
- Cover-More Group
- CrossBoundary Group
- Cycle Capital
- DCVC
- Decarbonization Partners
- DEG
- DOB Equity
- DOEN Participaties
