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.

In the heating, ventilation and air conditioning industry, certain sizes of ductwork are used more regularly. The basic idea of Air Tite Inc. manufacturing is to provide customers with fittings fabricated through the quality process for these often used sizes. These precision built sizes are assembled through custom technique which makes highly accurate fittings, thereby making them cost effective.

Air2O is a globally-renowned HVAC solutions firm that delivers the world's most efficient and sustainable cooling solutions and air cooling technology. Air2O has a unique ability to adapt and become a hybrid cooling system, incorporating traditional refrigerant or chilled water cooling coils. Air2O’s intelligent control system can automatically respond to external weather conditions, switching its cooling strategy from evaporative cooling to AC.

Aircuity is the 20-year industry leader in healthy and sustainable indoor environments. Their patented, multiplexed demand control ventilation platform continuously optimizes ventilation rates and provides intelligent data to a wide variety of constituents. They are passionate about improving working and learning environments globally, and protecting the future of the planet, by making impactful contribution to achieving a Net Zero future.

Aireco Supply, Inc. (Aireco), founded in 1952, is a major regional heating, air conditioning and refrigeration wholesaler operating in the Maryland, Virginia and Washington, D.C. areas of the US. They are providers of Heating & Air Conditioning Parts, Supplies, and Equipment, Refrigeration, Ventilation, Controls, Hydronic Heating & Air, Ductless Heating & Air, Applied Products, and Commercial, Light Commercial, & Residential.

Airedale International is a globally renowned HVAC solutions company and has expertise in the design and manufacture of innovative, high efficiency cooling solutions. They are also manufacturers of Integrated Cooling Solutions, Air Conditioning Service & Maintenance, Air Handling Units, Air Conditioning Spares, Precision Air Conditioning, Air Conditioning & Refrigeration Training, Chillers, and Air Conditioning Controls.

AirGreen is a family-owned HVAC business rooted in the heart of Montreal. For years, they've built a reputation on trust, expertise, and unwavering dedication to their clients. They pride themselves on offering top-tier heating, ventilation, and air conditioning solutions tailored to the unique needs of each customer. Beyond technical skills, their team is committed to ensuring their home or business stays comfortable year-round.

AIRMATICS is a simple cloud-based air compressor monitoring, performance and control solutions provider that provides real time data, analytics and insights at the push of a button. Developed to meet the requirements of Industry 4.0, AIRMATICS takes air compressor monitoring, performance and control into the 21st century by providing 360° real time performance tracking of businesses’ air compressors – from anywhere in the world.

AirSystems SW Ltd. coordinate the supply, design and installation of heating, ventilation, air conditioning and related products. They distribute equipment from some of the most established UK sales and manufacturing companies, notably Ability Projects, Aermec, Air Vent Technology, Hydronic, Vectaire and Waterloo Air Products.

Airtecnics is the vanguard of knowledge and technology in air curtains. They design and produce a complete range of air curtains for all kind of applications and installations, including high energy efficiency EC motors, heat pump direct expansion coils and multiple jets. We offer tailor made, customized finishes and exclusive design solutions. They provide basic and advanced regulation to fulfil all the market requirements.

AirTime gives its members a competitive edge by providing proprietary tools & techniques, management expertise, marketing systems, training and buying clout with the shared goals of market dominance, freedom of time and financial independence.

Airvance Group is a globally renowned expert in indoor air handling and air quality in buildings. The company is a major supplier of Heating, Ventilation and Air Conditioning products (HVAC), active in multiple countries in Europe.

Alan Manufacturing, Inc., through its nearly quarter century existence, has designed over 1,000 different product's including all standard HVAC dampers, related hardware, duct supports and zone control systems as well as specialized items that meet the needs of its customers.

Alessa is an integrated group in the cooling business and HVAC market. Its inventory includes distributing appliances, electronics and manufacturing refrigerators, freezers, air conditioners and air handling units, as well as contracting and installation of personnel and commercial air conditioners and air handling units.

All Heart Heating & Cooling is a family-owned and operated HVAC and IAQ company serving local home and business owners since 2000. We are proud to provide top-notch comfort solutions in Antelope Valley and the surrounding communities.

Alliance Air Products designs and manufactures custom HVAC solutions to meet any specification, including the most demanding commercial and industrial applications. Each piece of equipment is built to satisfy customers’ project requirements and exceed expectations.

Amazon is guided by four principles: customer obsession rather than competitor focus, passion for invention, commitment to operational excellence, and long-term thinking. Amazon strives to be Earth’s most customer-centric company, Earth’s best employer, and Earth’s safest place to work.

Amen Air, Inc. features a wide assortment of heating and air conditioning systems from the top manufacturers. Factors such as efficiency, cooling capacity, warranty, and price all come into play when shopping for an air conditioning and heating system.

Ameresco, Inc. is an independent, integrated, comprehensive energy efficiency and renewable energy company that is building a sustainable future with public organizations and private enterprise throughout North America and the United Kingdom.

American Chiller Service is an independent large tonnage commercial air conditioning service company specializing in Turbocor, centrifugal, absorber, screw, and reciprocating chillers. They offer service, maintenance, retrofit and new equipment installations.

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).

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

American Residential Services (ARS) is a brand of American Residential Services LLC., which provides heating, air conditioning, indoor air quality, plumbing, drain cleaning and sewer line services from company-owned locations across the United States of America (USA). United by exceptional service, the ARS® / Rescue Rooter® Network serves both residential and light commercial customers.

ASHRAE, is a company that focuses on achieving well-being through sustainable technology for the built environment. The Society focuses on building systems, energy efficiency, indoor air quality, refrigeration and sustainability.

The Ameristar brand is built for cost-effective, efficient, and dependable cooling and heating performance, no matter what kind of home you own. Ameristar is a brand of Ingersoll Rand, a leading name in the heating and air conditioning industry for more than a century.

AMETEK, Inc. is a global provider of industrial technology solutions serving a diverse set of attractive niche markets with annual sales over $6.0 billion. AMETEK has over 18,500 colleagues at more than 150 operating locations in 30 countries around the world. Their mission is to solve their customers' most complex challenges with differentiated technology solutions.

Amprobe test tools are the preferred choice of professionals for testing and measuring electrical properties in various field applications. Amprobe feature-rich products inventory includes clamp-on meters, power quality analyzers, electrical and environmental testers, multi-meters and other HVAC tools.

Anda Engineering Ltd. is a completely automated electronic office that provides professional HVAC and fire safety design services for commercial, industrial, institutional, recreational and residential type buildings.

Since 1954, The Anderson-Snow Corporation has served the chemical, food, oil and gas, pharmaceutical, pulp and paper, utility, and general industrial markets by manufacturing the highest quality coils. They manufacture Heat Exchangers, Coils, Welding, and Fabrication materials.

Andover Protection Systems LLC manufactures an extensive line of hermetic refrigeration compressors for explosive, corrosive, dusty, humid, and other harsh industrial environments. The company's target market is original equipment manufacturers (OEM) and other makers of air conditioners and refrigeration equipment.