Team Leadership
With a combined century of expertise in sustainable design principles, construction, engineering and building operations, our interdisciplinary teams develop creative, custom solutions for individual project needs.
CxGBS® professionals include mechanical and environmental engineers, energy consultants, commissioning authorities, architects and project managers.
H. Jay Enck
Founder and Chief Technical Officer
H. Jay Enck is the founder and principal of Commissioning and Green Building Solutions, Inc. (CxGBS®). An innovative leader in b…
Christine Miley
Chief Executive Officer and Co-Founder
Christine is the Co-Founder and Chief Executive Officer of Commissioning & Green Building Solutions, Inc. (CxGBS®). As an acco…
Davis McCollum
Director of Business Development and Sales
Davis is the Director of Business Development and Sales and a member of the CxGBS Leadership Team. Since joining CxGBS® in 2011…
David Cantrill
Branch Manager, Commissioning Authority, Project Manager
David has over six (6) years’ experience in the federal, commercial and private sector construction industry. David is a crucia…
Donald Zerrip
Senior Consultant
Mr. Zerrip has over 31 years of military and industrial experience in a variety of maintenance, engineering, and management posi…
Jesse Ross
Branch Manager, Commissioning Authority, Project Manager
Jesse has extensive experience in new and existing building commissioning project management, project execution, and field work …
Thomas Lawrence
Consultant and Principal
Thomas Lawrence joined CxGBS® in 2004. He has a broad range of experience in mechanical engineering, engineering management and …