The American Society of Heating, Refrigerating and Air Conditioning Engineers (ASHRAE; pronounced 'ash'-'ray') is an international technical society for all individuals and organizations interested in heating, ventilation, air-conditioning, and refrigeration (HVAC&R).

ASTM International (ASTM), originally known as the American Society for Testing and Materials, is an international standards organization that develops and publishes voluntary consensus technical standards for a wide range of materials, products, systems, and services.

The Air Conditioning, Heating, and Refrigeration Institute (AHRI), formed in 2008 by a merger of the Air-Conditioning and Refrigeration Institute (ARI) and the Gas Appliance Manufacturers Association (GAMA), is a North American trade association of manufacturers of air conditioning, heating, and commercial refrigeration equipment.

The Air Movement and Control Association International, Inc.

BSRIA (it takes its name from the initial letters of the Building Services Research and Information Association) is a UK-based testing, instrumentation, research and consultancy organisation, providing specialist services in construction and building services engineering.

The Building Research Establishment (BRE) is a former UK government establishment (but now a private organisation, funded by the building industry) that carries out research, consultancy and testing for the construction and built environment sectors in the United Kingdom.

The Chartered Institution of Building Services Engineers (CIBSE; pronounced 'sibs' or 'sib-'see') is a British professional association based in London that represents building services engineers.

The Institute of Refrigeration is an organisation in the UK that supports the refrigeration and air-conditioning industry.