Chris Thorn, PE, CEM, GBE

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Chris joined Performance Services in 2015 with 20 years of engineering experience. Previously, he spent five years at Control Technology and Solutions Group auditing facilities and developing energy focused projects to improve building performance, reduce operational expenses, and save on utility costs. Prior to that, he was with Drury Hotels as a construction engineer for ten years. Chris has a firm grasp of today’s energy and building codes. He has worked with technical design teams, architectural groups, and construction contractors to achieve successful, timely, and on budget completions of projects. Chris appreciates the culture at Performance Services and works hard to continue Performance Service’s excellent client care and service.


  • Missouri University of Science and Technology – BS in Mechanical Engineering, 1997


  • Professional Engineer (PE) – Arkansas, Missouri, Kansas, Kentucky
  • Certified Energy Manager (CEM)
  • Certified Energy Auditor (CEA)
  • Green Building Engineer (GBE)


  • American Society of Heating, Refrigeration, and Air-Conditioning Engineers (ASHRAE)
  • Association of Energy Engineers (AEE)
  • Member of the Order of the Engineer


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