Global Facility Solutions was founded by Robert K. Calloway, P.E., to provide clients with unbiased solutions to issues concerning their buildings. Our team of professional engineers and building operations consultants have hands-on, in-field experience working with existing building systems to enhance facility operations and reduce energy consumption. Our specialists bring in-depth knowledge of commissioning services, retro-commissioning, design engineering and HVAC system troubleshooting to ensure that your project is a success.


GFS Founder

Robert K. Calloway, P.E., CxA, CDSM


Robert K. Calloway is the Founder and President of Global Facility Solutions. He established GFS in 2006 to provide independent and objective facility solutions to the commercial, industrial and government marketplaces. Mr. Calloway has successfully grown GFS from a one-person business to a multi-employee firm serving Fortune 500 companies and Federal and State Government agencies nationwide. In 2023, Mr. Calloway negotiated and managed the acquisition of GFS through an equity partnership with Huron Capital to further enhance the business capabilities and to enable greater growth into the future.


Mr. Calloway has over 35 years of experience in energy and engineering solutions as an engineer, a project manager and an executive. His skills include mechanical design engineering, energy project development, project management, sales and marketing, and client acquisition.

Prior to founding Global Facility Solutions, Mr. Calloway worked for several national energy solutions companies including Honeywell, Custom Energy, Strategic Energy and Select Energy Services.

Mr. Calloway graduated from Drexel University (Go, Dragons!) in Philadelphia, Pennsylvania, with a Bachelor of Science in Mechanical Engineering. He is a Registered Professional Engineer in multiple states and the District of Columbia. He is also a Certified Commissioning Agent with the AABC Commissioning Group.

When he’s not focused on managing the business, he enjoys mountain biking, scuba diving, boating and spending time with his family.