VC  Sigma Prime Ventures

     Office Locations:

20 Custom House Street, Suite 830
Boston, MA 02110
Phone: 617-330-7872
Fax: 617-330-7975



  • Early



  • Communications & Networking
  • Information Technology
  • Semiconductor
  • Software & Internet
  • Storage & Hardware



    Sigma Partners, founded in 1984, raised $500 million in 2007 for Sigma Partners 8, bringing Sigma's total capital under management to over $2 billion. Focusing on early-stage investing, Sigma is typically the first venture investor and is a key board member. The firm's initial investment typically ranges from $2-8 million. Sigma invests in early stage technology companies focusing on SaaS, Cloud, Mobile, disruptive technologies and technology-enabled service companies. The firm primarily covers the East Coast, focusing on Boston, New York and Atlanta.



      Fund Name



    Get funds under management for this firm including Fund name, Dollar size of fund raise, and Vintage with a National Database subscription.

    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.
    Andrea Boyer Chief Financial Officer
    John Mandile Managing Director
    John Simon Managing Director
    Katelyn Stal;ey Johnson Associate
    Paul Flanagan Managing Director


    Recent Funding Events (trailing 12 months):







      Phenom People



      Series B


    Portfolio companies include:

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      CloudHealth Technologies
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      ExaGrid Systems
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      Gamer Sensei
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      Phenom People
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      Rave Mobile Safety
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    Recent News: