Sandbrook Capital is a private equity firm. Based in Stamford, Connecticut, United States. Among the 2 companies in the known portfolio are rPlus Energies and Cloverleaf Infrastructure.
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Investment focus
- Stage
- Late-Stage
- Sector
- Climate
- Focus
- CarbonClean EnergyGridOffshore WindRenewable InfrastructureSustainabilityWind
Contacts
Who to pitch at Sandbrook Capital
Sandbrook Capital portfolio companies (2)
- rPlus Energies
- Cloverleaf Infrastructure
Co-investors
Funds that share portfolio companies with Sandbrook Capital.
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About Sandbrook Capital
The firm's listing covers sector Climate, and focus areas Carbon, Clean Energy, Grid and Offshore Wind; known deals cluster at Late-Stage.
Of the 4 people on file at Sandbrook Capital, Carl Williams (Co-Founder and Partner) and Germán G. Cueva (Co-Founder and Partner) are listed as the contacts to approach first.
Across the known portfolio, 4 co-investors appear alongside Sandbrook Capital, including KeyBank, RBC Capital Markets and Fj Management.
Frequently asked questions
What is Sandbrook Capital?
Sandbrook Capital is a private equity firm based in Stamford, Connecticut, United States, with a known portfolio of 2 companies. The portfolio comes from public investment records rather than from the firm, so deals that never surfaced publicly are not in it.
What does Sandbrook Capital invest in?
Listed sectors include Climate; listed focus areas include Carbon, Clean Energy, Grid and Offshore Wind. Those tags come from the portfolio attached to the firm, so they describe what has been backed rather than a stated mandate for what comes next.
What stage does Sandbrook Capital invest at?
The known deals of Sandbrook Capital include Late-Stage rounds. Check that against your own round before reaching out: stage mismatch is the most common reason a well matched sector still goes nowhere.
Who should I pitch at Sandbrook Capital?
2 of the 4 people on file at Sandbrook Capital are listed as contacts for the firm. All 4 have their own profile page.
How do I contact Sandbrook Capital?
Any email address on file for the firm is masked on this page and readable inside RaiseHunt after you create an account. The 4 people attached to the firm have their own pages, each showing whether an address is on file for them.
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Data: RaiseHunt investor dataset · Snapshot 5 September 2026 · How this data is built · Report a correction or request removal