DOSSIER · UPDATED 18 NOV 2025

OpenX

OpenX has the largest independent ad exchange network for publishers and demand partners, while maintaining the highest quality marketplace standards. Learn more.

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Founded
2007
Headcount
319
Open roles
8
Last raised
Series E · $25M
SECTION I · THE BRIEF

Inside OpenX

Brief #37730Updated 18 NOV 2025PASADENAFIRST ROUND CAPITALSERIES E
Employbl Dossier

OpenX

OpenX has the largest independent ad exchange network for publishers and demand partners, while maintaining the highest quality marketplace standards. Learn more.

Founded
2007
Headcount
319
Open roles
8
Last raised
Series E · $25M
Section II — RestrictedMembers only
  • Engineering interview process at OpenX
  • Tech stack & infrastructure choices
  • Culture & day-to-day work style
  • Why join now vs. 6 months from now
  • Hiring focus & open headcount by team
  • Comp philosophy and band context
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LEADERSHIP

Founders & key people

Damon ReeveDamon Reeve
Jason FairchildJason Fairchild
Scott SwitzerScott Switzer
OPEN ROLES

Hiring at OpenX

Current Job Listings

Listing 0 of 8 job openings
    FUNDING

    Capital raised

    Total Amount Raised: $70,511,200

    OpenX's Investors

    OpenX Funding Rounds

    • Series E

      $25,011,200

    • Series E

      $25,011,200

      Series E Investors

      Samsung Ventures
      Sapphire Ventures
      Mitsui & Co. Global Investment
      Index Ventures
      Accel
      cyber communications
      yet2Ventures

    • Series D

      $20,000,000

    • Series D

      $20,000,000

      Series D Investors

      Sapphire Ventures
      AOL Ventures
      Mitsui & Co. Global Investment
      Vast Ventures
      Accel
      Presidio Ventures
      DAG Ventures
      Index Ventures

    • Series C

      $10,000,000

    • Series C

      $10,000,000

      Series C Investors

      DAG Ventures
      Mangrove Capital Partners
      Accel
      First Round Capital
      Jon Miller
      Index Ventures

    • Series B

      $10,500,000

    • Series B

      $10,500,000

      Series B Investors

      Accel
      First Round Capital
      O'Reilly AlphaTech Ventures
      Index Ventures
      Mangrove Capital Partners

    • Series A

      $5,000,000

    • Series A

      $5,000,000

      Series A Investors

      Index Ventures
      First Round Capital
      O'Reilly AlphaTech Ventures
      Mangrove Capital Partners
      LocalGlobe
      Vast Ventures
    Funding info provided by Diffbot.
    TAGS

    Categorized in

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    OpenX's Investors

    OpenX's Industries

    OpenX's Tech Stack

    LOCATIONS

    Where they work

    OpenX Headquarters Location

    888 East Walnut Street 2nd Floor, Pasadena, CA, 91101-1897

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