VC  Roser Ventures

     Office Locations:

1105 Spruce Street
Boulder, CO 80302
Phone: 303-443-6436



  • Early



  • Communications & Networking
  • Information Technology
  • Media & Digital Media
  • Software & Internet



    Roser Ventures is a venture firm established to invest in private offerings of companies that exhibit the potential for superior long-term returns. Established in 1987, Roser Ventures manages four Venture Capital Partnerships with $75 million under management. The firm's investment approach is focused on early-stage companies mostly in the information technology space, but is also diversified across a broad range of industries including: Software, Communications, Medical, Capital Equipment & Services, and Electronics Media. Roser Ventures focuses on deals that may not suit larger venture funds. It participates in $1-10 million deals in which the Partnerships will invest $100,000 to $3 million. Geographically, investments are focused in the Rocky Mountain region, although some of Roser's investments are dispersed across the United States. The firm's funds include: The Roser Partnership III, SBIC; The Roser Partnership III; The Roser Partnership II; and The Roser Partnership, Ltd.

    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.
    Al Valenti Chief Financial Officer
    Betty Woon Administration and Accounting
    Christopher W. Roser Partner
    James L.D. Roser Partner


    Portfolio companies include:



      Eclectic Radio Company
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      Ischemia Technologies
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      Mobile Force Technologies

      Object Reservoir
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      Outlast Technologies
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      Peregrine Semiconductor
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      SIS Microelectronics
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