What does David Gelbaum invest in?

David Gelbaum at Quercus Trust (Newport Beach, CA) — sector focus: Early Stage VC, Later Stage VC, PIPE.

How do I contact David Gelbaum?

David Gelbaum's published profile links (website, LinkedIn or X where available) are listed on the StartupFundraising.com investor profile.

Where is David Gelbaum based?

David Gelbaum is based in Newport Beach, CA.

David Gelbaum, Quercus Trust — Investor Profile

About David Gelbaum

David Gelbaum was a former Wall Street hedge fund manager who founded and led the Newport Beach-based Quercus Trust, a private venture capital firm dedicated to clean technology and alternative energy. Beginning in 2002, he invested approximately $500 million into roughly 40 to 50 green economy businesses, with a primary thesis focused on solar energy alongside sectors like smart grids, sustainable agriculture, electric vehicles, and biofuels. The firm operated as a very private investor with no significant public contact information, specializing exclusively in green technology without disclosed typical check sizes or lead/follow behavior. Notable portfolio companies include Energy Focus Inc., Axion Power International Inc., Entech Solar Inc. (which Gelbaum co-founded and chaired), and Firefly Energy. Gelbaum was characterized as a low-profile, reclusive investor who made his fortune using quantitative modeling for stock returns before retiring to focus on green tech and anonymous philanthropy. He died in September 2018 and was known for donating hundreds of millions anonymously to environmental groups and civil rights organizations rath

David Gelbaum at a glance

Role: Founder
Organization: Quercus Trust
Location: Newport Beach, CA
Investor type: Venture Capital
Focus areas: Early Stage VC, Later Stage VC, PIPE

Frequently asked about David Gelbaum

What does David Gelbaum invest in?: David Gelbaum at Quercus Trust (Newport Beach, CA) — sector focus: Early Stage VC, Later Stage VC, PIPE.
How do I contact David Gelbaum?: David Gelbaum's published profile links (website, LinkedIn or X where available) are listed on the StartupFundraising.com investor profile.
Where is David Gelbaum based?: David Gelbaum is based in Newport Beach, CA.

StartupFundraising tracks this investor record from SEC filings and announced rounds, updating focus, location and portfolio history as new data lands. Use it to gauge fit before an outreach, then widen the search to investors in Newport Beach.

David Gelbaum, Quercus Trust

About David Gelbaum

David Gelbaum at a glance

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