FI  PBJ Capital

     Office Locations:

23 Bedford Rd.
Lincoln, MA 01773



  • Early



  • Communications & Networking
  • Information Technology
  • Software & Internet



    PBJ Capital is a private investment vehicle for the founders of Arrowstreet Capital, an investment management firm in Boston with more than $100 billion under management. The firms three managing partners are Peter Rathjens, Bruce Clarke, and John Campbell-- thus PBJ. The firm focuses on early stage investments in Information Technology.

    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.
    Bruce Clarke Co-Founder
    John Campbell Co-Founder
    Peter Rathjens Co-Founder


    Recent Funding Events (trailing 12 months):







      Armored Things



      Series A







      Language I/O



      Series A







    Portfolio companies include:

        web link

      Armored Things
        web link

        web link

      Embr Labs
        web link



      Language I/O
        web link


      Portal Instruments
        web link

        web link


    Recent News: