HADDINGTON VENTURES, LLC
HADDINGTON VENTURES, LLC is a Series A, Series B, Series C+, buyout, debt and other fund in the US investing in Climate, hydrogen, energy-storage, critical-minerals, midstream-energy and renewable-energy.
- Stages
- Series A, Series B, Series C+, buyout, debt, other
- Sectors
- Climate, hydrogen, energy-storage, critical-minerals, midstream-energy, renewable-energy
- Invests in
- US-wide
- Round role
- Leads rounds
- Actively investing
- Yes
- Founded
- 1998
- Assets under management
- $726M
- Website
- hvllc.com
Check size not disclosed
Thesis
Haddington Ventures, LLC is a private equity firm founded in 1998 and based in Houston, Texas, specializing in the energy sector with a strong focus on energy transition initiatives. Their investment thesis centers on companies involved in hydrogen hubs, energy storage, and critical minerals, aiming to develop innovative infrastructure for the U.S. energy sector, including both conventional and renewable energy businesses. Haddington Ventures invests across a broad range of stages, including 1st, 2nd, and 3rd round, later stages, buyouts, acquisitions, mezzanine financing, and pre-IPO. The firm has a significant track record, having raised nearly $900 million in equity capital since its inception. As of March 30, 2026, Haddington Ventures reported $726,350,084 in Assets Under Management (AUM), all of which is discretionary. The firm's Haddington Equity Syndication Program (ESP) successfully closed in 2022 with $650 million in construction equity commitments for the Advanced Clean Energy Storage (ACES) Delta hydrogen platform, with potential to increase to $1.5 billion.
Common questions
Does HADDINGTON VENTURES, LLC invest at the Series A stage?
Yes. HADDINGTON VENTURES, LLC lists Series A, Series B, Series C+, buyout, debt and other among the stages it invests in.
Where does HADDINGTON VENTURES, LLC invest?
HADDINGTON VENTURES, LLC invests in the US.