HVAC Associations

Air Conditioning Contractors of America

The Air Conditioning Contractors of America (ACCA) has been the nationwide association representing the HVACR contracting industry for over forty years.

Air-Conditioning and Refrigeration Institute

The Air-Conditioning and Refrigeration Institute (ARI) is the trade association representing manufacturers of more than 90 percent of the air conditioning and commercial refrigeration equipment installed in North America.

Air Movement and Control Association

AMCA is the Air Movement and Control international association.

American Boiler Manufacturers Association

The American Boiler Manufacturers Association (ABMA) is the national, nonprofit trade association that represents and watches out for the interests of companies that design and build the systems that combust the fuels and generate the steam and hot water.

American Society of Heating, Refrigerating and Air-Conditioning Engineers

The American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) advances the arts and sciences of heating, ventilation, air conditioning and refrigeration to serve humanity and promote a sustainable world.

Associated General Contractors of America

The Associated General Contractors of America (AGC), the voice of the construction industry, is an organization of qualified construction contractors and industry related companies.

Canadian Boiler Society

The Canadian Boiler Society is a society of energy and environmentally concerned companies consisting of boiler manufacturers and supplier companies to the boiler industry in Canada.

EPA Indoor Air Quality

The Indoor Environments Division (IED), located within the Office of Radiation and Indoor Air (ORIA), under the Office of Air and Radiation (OAR), is responsible for implementing EPA’s Indoor Environments Program, a voluntary (non-regulatory) program to address indoor air pollution.

GAMA Gas Appliance Manufacturers Association

GAMA is the national trade association of manufacturers of residential, commercial and industrial appliances and equipment, components and related products. GAMA’s scope includes oil-fired and electric equipment as well as gas-fired equipment.

International Institute of Refrigeration

The International Institute of Refrigeration (IIR) is a scientific and technical intergovernmental organization enabling pooling of scientific and industrial know-how in all refrigeration fields on a worldwide scale.


HARDI (Heating, Air-conditioning and Refrigeration Distributors International) is the single voice of wholesale distribution within the HVACR industry. HARDI members market, distribute, and support heating, air-conditioning, and refrigeration equipment, parts and supplies. HARDI Distributor members serve installation and service/replacement contractors in residential and commercial markets, as well as commercial/industrial and institutional maintenance staffs. HARDI proudly represents more than 475 distributor members representing nearly 4,100 branch locations, and close to 500 suppliers, manufacturer representatives and service vendors.


HRAI is a partnership of industry sector organizations that represents Heating, Ventilation, Air Conditioning and Refrigeration (HVACR) manufacturers, wholesalers and contractors who provide the Canadian.

Mechanical Contractors Association of America (MCAA)

The MCAA is a trade association established to represent and service members in the mechanical industry.

RSES Refrigeration Service Engineers Society

For more than 70 years, RSES has offered educational and certification programs to HVACR professionals of all experience levels. RSES also provides technical examination programs and training courses for service professionals working on heating, ventilation, air conditioning and refrigeration systems across the nation.

Refrigeration Engineers

jobs database, message board, classified ads service and glossary for refrigeration engineers

SMACNA Sheetmetal & Air Conditioning Contractors

SMACNA is the sheet metal and air conditioning contractors’ national association. The website contains construction manuals, products and services, help finding expertise contractors.

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