top of page


  • 1962

    • United Manufacturing formed and later became Prototype Development, Inc.                              

  • 1993

    • Assets of Prototype Development acquired – PDI Ground Support Systems established                                                                                                                                    

  • 1996

    • Assets of Savoy Manufacturing, a manufacturer of running gear, acquired 

    • Obtained ISO certification                                                                                                                                                                                                           

  • 2007

    • Acquired 90% interest in ZITEC, located in Ft. Walton Beach, Florida – a small defense contractor with emphasis on AME and other weapons support systems.  This business was sold in 2014 to the 10% owner                                                                                                                                                                                  

  • 2010

    • Relocated to a 105,000 sf facility in Solon, Ohio                                                                                       

  • 2017

    • PDI named exporter of the year for Region V by US Small Business Administration

    • PDI recognized by General Atomics as a top tier 1% supplier                                                                

  • 2018

    • PDI received Gold Medal supplier award from BAE Systems

    • PDI received Presidential “E Award” in recognition of exporting excellence (PDI was one of 44 companies in the United States to receive this prestigious award)

    • Acquired the assets of KWD Manufacturing and renamed to KWD Aircraft Support Equipment                                                                                                                                                               

  • 2020

    • Relocated KWD to Solon, Ohio and integrated production of its product lines

    • KWD finishes year with 3.92/4.00 rating from Lockheed Martin for quality and timeliness of deliveries

  • 2023

    • Aquired the assets of Polytechnic Industries and renamed to Polytech Defense Spares             

bottom of page