Centaurus Capital

Centaurus Capital is the single-family office of billionaire John Arnold, headquartered in Houston, Texas. Founded after Arnold closed his energy hedge fund Centaurus Energy in 2012, Centaurus Capital deploys the Arnold family's personal capital with a specific focus on the energy industry. The firm invests across energy sectors — including clean energy, geothermal, grid infrastructure, and conventional energy — and has the capacity to lead large venture rounds as well as provide project-level equity financing. Notable investments include leading Mazama Energy's oversubscribed Series B ($135M) in 2026, participating in Fervo Energy's Series E and providing $75M in project-level preferred equity for Fervo's Cape Station Phase I, and backing Type One Energy. Centaurus Capital does not maintain a public-facing website and does not disclose fund size, AUM, or standard check-size ranges.