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Donald Deieso

Donald Deieso

Operating Partner

Joined Arsenal in 2011

Areas of Focus:

  • Healthcare

Prior Experience:

  • PeriGen
    Chairman & CEO
  • EduNeering, Inc.
    President & CEO
  • Metcalf & Eddy, Inc.
    President & CEO
  • Research Cottrell Companies, Inc.
    President & CEO
  • NJ Department of Environmental Protection
    Assistant Commissioner
  • Consolidated Edison of NY
    Chief Chemical Engineer

Other Positions and Boards:

  • BioIVT
  • TractManager Holdings
  • WIRB Copernicus Group 
  • Breckenridge IS (Previous)
  • Certara (Previous)
  • iMDS Holdings (Previous)


  • Ph.D. in Environmental Science
    Rutgers University
  • M.S. in Environmental Science
    Rutgers University
  • B.S.M.E. in Mechanical Engineering
    Manhattan College