American Boiler Manufacturers Association
Air Conditioning Contractors of America
Air Conditioning Contractors of America, National Capital Chapter
Association of Energy Service Professionals
Association for Facility Engineering
American Gas Association
American Gas Cooling Center
American Institute of Architects
Association of Higher Education Facilities Officers
Air Conditioning and Refrigeration Institute
American Supply Association
American Society for Healthcare Engineering
American Society of Home Inspectors
American Society of Heating, Refrigerating and Air Conditioning Engineers, Inc.
American Society of Mechanical Engineers
Building Owners & Managers Association International
Chartered Institution of Building Services Engineers
Edison Electric Institute
Electric Power Research Institute
Geothermal Heat Pump Consortium
International District Energy Association
Heat Pump Centre, U.S. National Team
IEEE Control Systems Society
International Code Council
International Facility Management Association
National Association of Regulatory Utility Commissioners
National Fire Protection Association
Nation Fenetration Rating Council
National Society of Professional Engineers
Sheet Metal and Air Conditioning Contractors National Association
Sheet Metal Workers International Association