Engineering & Science Societies & Research Institutes

• AEE: The Association of Energy Engineers
• ANSI: American National Standards Institute (ANSI)
• ASTM: American Society of Testing and Materials
• ACGIH: American Conference of Governmental and Industrial Hygienists, Inc.
• AICHE: American Institute Of Chemical Engineers
• API: The American Petroleum Institute
• ASHRAE: American Society Of Heating, Refrigerating, and Air-conditioning Engineers
• ASME: American Society For Mechanical Engineers
• AWWA: American Water Works Association
• CBE-IEDP: Center for Biofilm Engineering
• CCOHS: Canadian Centre for Occupational Health & Safety
• CDA: Copper Development Association
• CDEA: Canadian District Energy Association
• CPPA: Canadian Pulp & Paper Association
• CTI: Cooling Technology (formerly Tower) Institute
• EPRI: Electric Power Research Institute
• EUROHEAT: (European District Heating/Cooling Association, etc.)
• IDEA: International District Energy Association (Formerly District Heating & Cooling Association)
• NACE: National Association Of Corrosion Engineers
• NAMS: The North American Membrane Society
• NBBI: The National Board of Boiler and Pressure Vessel Inspectors
• NFPA: National Fire Protection Association
• NSPE: National Society of Professional Engineers
• NWRI: National Water Research Institute - Canada
• SSPC: The Society for Protective Coatings
• TAPPI: Technical Association Of The Pulp & Paper Institute
• VMA: Valve Manufacturers Association
• WEF: Water Environment Federation (formerly Water Pollution Control Federation

• ARI: Air Conditioning & Refrigeration Institute
• ASHRAE: American Society Of Heating, Refrigerating, and Air-conditioning Engineers
• BOMA: Building Owners & Managers Association
• CTI: Cooling Technology Institute (Formerly Cooling Tower Institute)
• IFMA: International Facility Management Association
• MCAA: Mechanical Contractors Association of America

Power & Boilers

• ASME: American Society For Mechanical Engineers
• EPRI: Electric Power Research Institute
• NBBI: The National Board of Boiler and Pressure Vessel Inspectors

Pulp & Paper

• PAPTAC: Pulp and Paper Technical Association of Canada - Association
• TAPPI: Technical Association Of The Pulp & Paper Institute