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Getting in touch couldn’t be easier.

  • Want to discuss a project?
  • Have a question?
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Delivering value-engineering and manufacturing expertise to cut your costs.

Who we are

What we do

  • Provide seamless, secure, low cost manufacturing
  • Reduce costs and time to market through application of lean strategies
  • Deliver innovative solutions to complex engineering and manufacturing challenges

What makes us different

  • Strong values and work ethic
  • Hands-on owners manage GEM
  • Easy to do business with
  • Get it right the first time
  • Global presence, eliminating risks associated with doing business overseas
  • Skilled across industries


  • Our Dayton, Ohio headquarters is close to major highways, rails, and airports.
  • Our twin manufacturing facility in Bangkok, Thailand is your gateway to easily doing business in Asia.
  • Our service providers are located in the U.S. and in Canada, Mexico, Europe and Central America keep you connected no matter where you are.


From our roots in metal stamping in the 1930's to specialized equipment manufacturing to heavy machinery manufacturing in the 1960's to today's focus on lean manufacturing of electro-mechanical assemblies, subassemblies, and systems, GEM is committed to responding to your needs.

Strong values and sense of integrity have always been pivotal to doing business with GEM.

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