The Association of Installation Consultants, ACI, was born from the desire of a group of Catalan consultancies to have a joint representation tool for the group of installation consultancy professionals before the different agents involved in the building process.

The Catalan Association of Energy, Air Conditioning and Refrigeration Technicians, ACTECIR , is a non-profit organization that brings together, in Catalonia, technicians, professionals, and supporters in air conditioning (cold and heat), ventilation, refrigeration, and energy activities.

ADEME (French Environment and Energy Management Agency) is a public agency under the joint authority of Ministry of Environment, Energy and the Sea and the Ministry of Higher Education and Research. ADEME is involved in the following sectors: renewable energies, air quality, noise control, transport & mobility, waste & recycling, polluted soil and sites, environmental management.

AEDICI, the Spanish Association of Engineers and Consulting Engineers of Installations' installation Consultants have training in engineering and the ability to contribute an analytical and critical point of view to each project with the regulations to be applied.

AEFYT's guide is intended to facilitate the work of installers and simplify the performance of risk analyses in the event that it is necessary for the installations in progress. The risk analysis is based on the category of the facilities in which the work will take place, the level of the refrigeration company, and the flammability of the refrigerants used.

AFEC, Association of Manufacturers of Air Conditioning Equipment, is a non-profit association, constituted in the year 1977. The Association brings together manufacturers of all the subsectors of air-conditioning.

AFNOR is an international services delivery network that revolves around 4 core competency areas: Standardization, Certification, Industry Press, and Open-Learning courses.

Air & Waste Management Association (A&WMA) is a non-profit, non-partisan professional organization that enhances knowledge and expertise by providing a neutral forum for information exchange, professional development, networking opportunities, public education, and outreach to more than 6000 environmental professionals in 65 countries.

AREA is the European organization of air-conditioning, refrigeration, and heat pump (RACHP) contractors. Established in 1988, AREA voices the interests of 26 national members from 22 European countries, representing more than 9,000 companies across Europe (mainly small to medium-sized enterprises), employing some 125,000 people and with an annual turnover approaching € 20 billion.

The Air Conditioning Contractors of America (ACCA) is the national association of heating, ventilation, air conditioning, and refrigeration contractors. It is a non-profit organization that specializes in business solutions, quality installation, lobbying, government relations, consumer information, energy efficiency, and indoor air quality.

ACCO offers online HVACR & plumbing apprentice courses for apprentices who need a non-classroom-based method of receiving their apprenticeship instruction.

Air Conditioning Trade Association (ACTA) is a non-profit, contractor-member association that serves free enterprise non-union HVAC, Mechanical, and Service Contractors, as well as their employees and the industrial suppliers that service them. ACTA specializes in training in the HVAC industry through its state- and federally-approved Sheet Metal Apprenticeship Program.

The Air Conditioning, Heating, and Refrigeration Institute (AHRI) is the trade association representing manufacturers of HVACR and water heating equipment, within the global HVACR industry. AHRI’s 315 member companies manufacture quality, efficient, and innovative residential and commercial air conditioning, space heating, water heating, and commercial refrigeration equipment and components for sale in North America and around the world.

Air Movement and Control Association (AMCA) International Inc. is a not-for-profit association of manufacturers of fans, dampers, louvers, air curtains, and other air-system components for commercial HVAC, industrial-process, and power-generation applications.

The Air-Conditioning, Heating, and Refrigeration Institute (AHRI) is the trade association representing manufacturers of air conditioning, heating, commercial refrigeration, and water heating equipment. The association's 300+ member companies produce more than 90 percent of the residential and commercial air conditioning, heating, water heating, and commercial refrigeration equipment made in North America.

The John Albritton Company is a non-stocking manufacturer representative serving the HVAC/R industry. They provide GRASSLIN / INTERMATIC timers, defrost controls plus surge and brownout protection devices, MIDCO makeup and lo-nox gas burners, DOUCETTE heat exchangers and heat recovery and many more.

Alliance Environmental Group is a premier environmental remediation and indoor air quality services provider in Fairfield, California, USA. Their experienced team works efficiently and follows all relevant Occupational Safety and Health Administration (OSHA) and Environmental Protection Agency (EPA) regulations, in order to ensure that businesses are clear of any hazardous substances.

The Alliance for Building Energy Efficiency (GEEA) is a cross-sectoral association of representatives from industry, research, trade, commerce, energy supply and financing. The aim of GEEA is to improve energy efficiency in buildings in Germany through recommendations for policymakers and concrete measures on the part of industry.

The Alliance for Responsible Atmospheric Policy (Alliance) is an industry coalition that was organized in 1980 to address the issue of stratospheric ozone depletion. It represents businesses that produced HFCs, as well as manufacturers that used HFCs in air conditioning, refrigeration, appliances, foam insulation, other foam products, electronics, aerosols, and metered dose inhalers.

Alliance to Save Energy is a nonprofit coalition of business, government, environmental, consumer leaders promoting the efficient and clean use of energy worldwide to benefit consumers, the environment, the economy, national security.

AMASCAL's aim is to establish a channel of communication between the different sections of the distribution that goes from the manufacturer to the small stores.

ABMA is the national nonprofit trade association of commercial, institutional, industrial and power-generating boiler and combustion equipment manufacturers, manufacturers of environmental systems and controls and instrumentation equipment, boiler operators, product/service suppliers, and the boiler/burner aftermarket.

The American Council for an Energy-Efficient Economy (ACEEE), a nonprofit research organization, develops policies to reduce energy waste and combat climate change. Its independent analysis advances investments, programs, and behaviors that use energy more effectively and help build an equitable clean energy future.

ACIL is the trade association representing independent, commercial scientific and testing laboratories. Its members are professional services firms engaged in testing, product certification, consulting, and research and development.

AFFI is the national trade organization representing the interests of the frozen food and beverage industry for more than 70 years.

American Gas Association, founded in 1918, represents more than 200 local energy companies that deliver clean natural gas throughout the United States of America (USA).

AIHA is the association for scientists and professionals committed to preserving and ensuring occupational and environmental health and safety (OEHS) in the workplace and community. AIHA serves as a resource for those employed across the public and private sectors and the communities in which they work.

American Lung Association is the leading organization working to save lives by improving lung health and preventing lung disease through research, education and advocacy.

The American National Standards Institute (ANSI) is a private, not-for-profit organization dedicated to supporting the U.S. voluntary standards and conformity assessment system and strengthening its impact, both domestically and internationally.

ASHE is the largest association devoted to professionals who design, build, maintain, and operate hospitals and other health care facilities. ASHE members include health care facility managers, engineers, architects, designers, constructors, infection control specialists, and others.