"A Woman Owned Small Business"



"Serving the Life of Your Building"

Commissioning & Green Building Solutions, Inc. (CxGBS®) is a professional consultancy providing innovative solutions to achieve high-performing buildings.   CxGBS serves clients nationwide from its headquarters in Duluth, GA and satellite offices in Mississippi and Tennessee.  As a project team member, CxGBS applies our Holistic Commissioning® process to assist the team in achieving high performing buildings right from the start and throughout the life of your building. Our process guides the project team in meeting the owner’s performance goals, reducing total cost of building ownership and improving occupant and stakeholder satisfaction.  CxGBS® is a Woman Owned Small Business (WOSB).

CxGBS® is comprised of highly-skilled staff members, including Professional Engineers and Architects, Project Managers, LEED Accredited Professionals, and Certified Commissioning Authorities who are dedicated to delivering the owner's requirements and providing sustainability services of the highest quality and value to our clients.


CxGBS® is committed to raising the standards for design, construction and operation of healthy, high-performing buildings. 


CxGBS® is guided by five basic principles:

  • Put people first
  • Practice personal, social and environmental accountability
  • Seek innovative, realistic solutions
  • Lead by example
  • Continually strive for excellence


Since being founded in 2002 by H. Jay Enck and Christine Miley, CxGBS® have been leaders and innovators in sustainability and energy efficiency efforts for the built environment. At inception, our firm went to work on fulfilling our Mission and, using our well-executed commissioning process, quickly earning a reputation for being a tenacious advocate for building owners and a premier commissioning authority (sometimes mistakenly called commissioning agent) and commissioning provider.

From the start, CxGBS® also took a leading role in driving the success of owners’ sustainability goals. We developed our comprehensive Green Housekeeping and Site Management program, the first in the southeast to meet LEED requirements. CxGBS® went on to drive many other sustainability firsts such as guiding the project team for the Arthur M. Blank Family Office in claiming the title of First LEED Gold Certified Office Building in the Southeast, the team for the Homewood Middle School in claiming the title of First LEED Certified School in Alabama, the team for the Balzer Theater in claiming the title of First LEED Certified Theater in the US, and others. CxGBS has secured their place as a premier provider of guidance on achieving LEED certification. 

Corporate History - Timeline

2002 | Commissioning & Green Building Solutions (Services) begins its client advocate journey as a provider of commissioning services - Commissioning Authority (sometimes mistakenly called Commissioning Agent), LEED certification guidance, energy auditing, energy modeling, and sustainable design consulting

2001- Present | Contributed to the development of the U. S. Green Building Council LEED rating system through a decade of committee and technical advisory group participation and leadership.

2001 | Enck, Charter Member and Founding Board Member of the Atlanta Regional Chapter of the USGBC

2002 | Developed the first Green Housekeeping and Site Management program to meet LEED requirements in the southeast, to assist clients in achieving LEED certification.

2002 | Building Commissioning Association (BCA) Southeast Chapter - Board of Directors

2004 | Arthur M. Blank Family Office – First office building in the Southeast to achieve LEED Gold certification, located in Atlanta, Georgia

2005 | Homewood Middle School – First LEED certified School in Alabama - First LEED Certified Middle School in the United States, located in Homewood, Alabama

2005| Balzer Theater – First Theater in the United States to achieve LEED certification. Achieved LEED Silver certification, located in Atlanta, Georgia

2006 | USGBC Committee to develop the new LEED Accreditation Professional Exam for NC, CI and EB

2008 | ASHRAE Committee to develop Commissioning Process Management Professional (CPMP) Certification Exam

2009 | Thatcher Hall, Darlington – First LEED for Schools certification in Georgia

2009 | Oakridge High School – Commissioning for first LEED certified school in Tennessee

2011 | Contributed to 2012 Whole Building Commissioning Requirements

2011 | Commissioned First LEED certified Greek Housing Unit in the U.S. – Pi Beta Phi Sorority at Mississippi State University, Starkville, Mississippi

2012 | Georgia Institute of Technology- Wayne Clough Undergraduate Learning Commons – LEED Platinum certification


 Associations U.S. Green Building Council American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. Building Commissioning Association Labs21 ENERGY STAR Society of American Military Engineers

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