AACE – Association for Total Cost Management
ABMA – American Boiler Manufacturers Association
ACES – American Consulting Engineers Council
ACCA – Air Conditioning Contractors of America
ACEEE – American Council for an Energy Efficient Economy
AEE – Association of Energy Engineers
AGA – American Gas Association
AIA – American Institute of Architects
AIChE – American Institute of Chemical Engineers
ANSI – American National Standards Institute
API – American Petroleum Institute
APPA – Association of Higher Education Facility Managers
ARI – Air Conditioning and Refrigeration Institute
ASCE – American Society of Civil Engineers
ASE – Alliance to Save Energy
ASHRAE – American Society of Heating, Refrigeration and Air Conditioning Engineers
ASM – American Society for Metals
ASME – American Society of Mechanical Engineers
ASTM – American Society for Testing and Materials
BOMA – Building Owners and Managers Association
BOMI – Building Owners and Managers Institute
CIBO – Council of Industrial Boiler Owners
CTI – Cooling Tower Institute
EPRI – Electric Power Research Institute
GTC – Gasification Technologies Council
IEEE – Institute of Electrical and Electronics Engineers
IFMA – International Facility Management Association
ISA – Instrument Society of America
SMRP – Society for Maintenance and Reliability Professionals
USCHPA – United States Combined Heat and Power Association
WEEA – World Energy Efficiency Association