Active

Sandbrook Capital

Investor type

PE

Founded

2021

AUM

$2 400 M

Location

Stamford, Connecticut, United States

Investment Ticket

$10-50 m

Investment Stage

Series B Late Stage (Series C+)

Region of investment

North America
Investor profile last updated: 17 February, 2026

Profile

We are a private investment firm dedicated exclusively to building businesses that help transform the world’s energy infrastructure. By partnering with courageous entrepreneurs that share our drive to fight climate change, we create impactful companies that move us closer to a net-zero world and deliver strong returns for our investors.

Our founders have each accumulated decades of experience operating, funding, and supporting climate infrastructure companies. They have worked together for over 17 years to formulate and refine a shared investment philosophy that has supported the growth of industry leaders such as Pattern Energy, Silver Ridge Power, and SeaJacks Ltd. In 2021, this partnership evolved into Sandbrook Capital – a firm built from the ground up to help exceptional entrepreneurs tackle the greatest challenge of our time.

As of summer 2025, Sandbrook and its co-investment LPs have committed over $2.3 billion in equity capital to leading climate infrastructure companies including NeXtWind, rPlus Energies, Cloverleaf Infrastructure, Havfram, VoltWise and Intellirent.

Industry

Industrial Infrastructure Energy

Sandbrook Capital Funds

Name Type
Questionare
Industry
Questionare
Stage
Questionare
Region
Size AUM Launch date
Sandbrook Climate Infrastructure Fund I
Fund of funds
Industrial
Infrastructure
Energy
Seed
Series A
Series B
North America
$5-10 m
$1500 M
December 2023

Contacts

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FAQs about Sandbrook Capital

Sandbrook Capital is a private equity firm. It backs companies at Series B and Late Stage (Series C+), writing tickets of $10-50 m.
Sandbrook Capital is located in Stamford, Connecticut, United States.
Sandbrook Capital was founded in 2021.
Sandbrook Capital invests in companies and startups in Industrial, Infrastructure, Energy.
Sandbrook Capital invests in companies and startups in North America.
Sandbrook Capital invests in companies and startups at Series B, Late Stage (Series C+).
Sandbrook Capital usually invests $10-50 m on average.
Sandbrook Capital has around $2 400m assets under management.
Sandbrook Capital last fund was created/launched in 2023-12-10
Sandbrook Capital can be reached through its website sandbrook.com and its LinkedIn page. Its general enquiries address is contact@sandbrook.com. Cold-mailing a general inbox rarely reaches a partner, so Private Equity List also lists the investment-team contacts for Sandbrook Capital — names, roles, verified work emails and LinkedIn profiles — available on a Pro plan from $129/month (see pricing). Contacts are sourced from the firm's website and LinkedIn and re-verified on a rolling cycle. Spot a stale contact, or none at all? Report it — we re-run that firm within 48h and get back to you.
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Private Equity List re-verifies investor profiles on a rolling cycle, pulling from the firm's own website and LinkedIn rather than a one-off import. This profile was last updated on 17 February, 2026. Something out of date here? Report it — we re-run that firm within 48h and get back to you.