GMC Commissioning in the News and Media

GMC Commissioning Opens Atlanta Office

SAN DIEGO, CA - December 14, 2020: GMC Commissioning (, the largest independent commissioning firm in California, has opened an Atlanta office to serve East Coast clients.

“Our objective is to ensure the quality and performance of our client’s investments,” commented Alex Mathers, Principal and CEO at GMC Commissioning. “Establishing our Atlanta office allows us to deliver critical facility commissioning to owners nationwide”.


December 14, 2020

Marco De Zan joins GMC Commissioning as Managing Director

SAN DIEGO, CA – March 24th, 2020 GMC Commissioning, a full-services commissioning provider and consulting firm in the commercial and industrial building design and construction industry, has hired Marco De Zan, CEM, CBCP, EBCP, CMVP as Managing Director.


March 24, 2020