FI  Quercus Trust

     Office Locations:

2309 Santiago Dr.
Newport Beach, CA 92660



  • Early
  • Expansion
  • Growth
  • Middle Market



  • Energy & Clean Tech



    Quercus Trust is a private investment firm operated by David Gelbaum. According to the Earth2Tech web site, Gelbaum is a former trader at hedge fund Princeton/Newport Partners, but has become a leading investor in cleantech with diversified holdings in the sector. According to published reports, Gelbaum has amassed a 47-company portfolio of clean energy stocks worth upwards of $500 million, most of which were small- and micro-cap clean energy stocks, but that increasingly Gelbaum was making venture funding deals. According to another report, Quercus has probably made more investments than every other VC firm, except for Khosla Ventures.

    Investment Firm Key

       VC = Venture Capital
       PE = Private Equity
       A = Angel
       I = Incubator
       MB = Merchant Bank
       VD = Venture Debt
       FI = Family Investment Office
       FOF = Fund of Funds
       ED = Economic Development Office   
       TT = Technology Transfer Office
       CVC = Corporate Venture Capital
       SEC = Secondary Purchaser
       HF = Hedge Fund/Mutual Fund
    Venture Capital
    Seed Stage
    (includes "pre-seed," or
    concept stage)
    No Revenue
    Early StageMinimal
    Growth Stage
    (also called Mid-stage)
    Expansion Stage
    (also called Late-stage)
    $7M and greater
    Private Equity
    Lower Middle Market$10M-$249M
    Middle Market$250M-$499M
    Upper Middle Market$500M-$1B
    Large Cap>$1B

    Investment Team:

    Name   Title
    Get the complete investment team + individual email addresses for investment team partners. Get personal images, LinkedIn links, investment specialties, office locations and more with a National Database subscription or Southern California Database subscription.
    David Gelbaum
    Monica Chavez Gelbaum


    Portfolio companies include:

      Axion Power
        web link

      BlueFire Ethanol
        web link

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      Cyrium Technologies
        web link

      DayStar Technologies
        web link

        web link

      Firefly Energy
        web link

      Graphene Energy
        web link

        web link

      Hydro Green Energy
        web link

        web link

      Promethean Power
        web link

        web link

      Standard Renewable Energy
        web link


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