Gastite provides corrugated stainless steel tubing that has revolutionized the gas-distribution business virtually rendering conventional black iron pipe obsolete.

Gem Heating & Air Conditioning is owned and operated by James Barrett. James and his team bring over 20+ years of experience in the HVAC repair, service and installation industry in southern Idaho, USA. Gem Heating & Air Conditioning are proud to run their business with strong values and work ethic, so that every customer feels they are getting the best service for their HVAC needs.

The George F. Wheelock Co. is a distributor of heating and air conditioning equipment. They were founded as a sheet metal fabricator and roofing and furnace supplier.

The Central Association of Sanitary, Heating, Air Conditioning (ZVSHK) is the professional organization, trade association and interest group for the HVAC trades in Germany. The ZVSHK is the founder and sponsor of the world's leading trade fair ISH .

Gibbons provides products and life-cycle services for heating, cooling, ventilation, air-conditioning and humidification systems and has extensive experience in the food and beverage, leisure, commercial and industrial sectors.

Gibson HVAC offers quality residential HVAC products for a complete value. Each of their units are factory checked using a patented process known as Demand Flow Technology (DFT).

Glamsbjerg- Haarby Varmeværk is a renowned Danish district heating company. Glamsbjerg-Haarby Varmeværk produces and supplies hot water to all households connected to the district heating network in Glamsbjerg and Haarby, in Denmark.

GLOB Energy is an oil drilling mud business that provides great products for drilling, completions, and cementing. They know that finding the right drilling product to use is a choice not to be taken lightly. That’s why they offer highly efficient products to help customers get the job done efficiently.

Global International Heating and Cooling Co company is proud to have obtained the following Licenses and Certifications: Orraca Brazing License, Lead Paint Renovation License, Contractors License #234255, Epa 608 universal type 1,2 and 3, Epa 609 MVAC, Indoor air quality Certified, Green Energy Certified, R410-A Certified, HFO certified and Nate Certificate.

GNPW Group develop special businesses and projects in the area of ​​energy, fossil and alternative fuel logistics. The GNPW Group was founded in 1993 and is formed by companies with outstanding performance in business development and special projects in the areas of Energy, Logistics and Fossil Fuels.

GOODFELLAS AC is a trusted HVAC company serving the vibrant community of Tucson, AZ. They take pride in being a family-owned-and-operated business dedicated to providing top-notch HVAC services. As Tucson locals, they understand the unique climate challenges this beautiful city presents and are committed to ensuring the comfort year-round.

Goodman Global provides central air conditioning and heating equipment. IAQ and PTAC products.

GrayWolf manufactures indoor air quality measurement instrumentation that helps optimize the balance between building energy savings and occupant performance, comfort and health. GrayWolf is dedicated to providing reliable, high quality products.

Great Guys is one of the fastest growing Technician Owned HVAC & Electrical companies in the Denver Metro! Their trusted Heating, Cooling, Ventilation & Electrical technicians solve all HVAC problems, and make recommendations for improved solutions to ensure the home or business is always comfortable, efficient and safe. They offer comprehensive services and equipment that are uniquely selected to best meet varying needs.

GreenTree Air Conditioning Inc. has been providing Pompano Beach & surrounding areas with exceptional HVAC services since 2015.

Guardian central heating and cooling systems are well known for its reliability, money-saving efficiency and outstanding value.

Hale Industries, Inc. offers a variety of high efficient, economical solutions for industrial and residential heating and cooling with Advanced Radiant Systems Infrared Heating, COOL-SPACE Evaporative Cooling, and PremAire air turnover systems.

Haley Mechanical, headquartered in Dexter, Michigan, is one of the pre-eminent residential HVAC companies in Michigan, servicing the Ann Arbor area. Services provided include Heating, Cooling, Geothermal Heating, HVAC, Plumbing, Electrical, Generators, Air Quality, Repair and Installation, and Drain Cleaning.

Hamel’s Air Conditioning and Heating is a small, family-owned business where customers are part of our family, not a number. We strive to provide the same level of service we would expect in our own home for each customer we serve. We can provide this level of service because we are not the biggest HVAC business in town and never will be. Instead, our focus is on an unrivaled customer experience.

At Hanson Heating & Air provide the service, repair, and install products such as air conditioning, boilers, ventilation, generators, heat pumps, zone systems, air purifiers, and high-efficiency equipment for residential and commercial locations.

Hatch Company was established in 1985 with over 30 years’ experience as a manufacturer’s rep firm serving Western Canada, and the northern Territories. They provide solutions for the HVAC/R marketplace, focused on institutional, commercial, multi-family residential, and industrial construction projects. They cater their services to both the new construction and the retrofit markets.

Head’s Heating & Air Conditioning is an HVAC company that offers complete heating and air conditioning services in the Mobile and Baldwin county area. Their company was established in the year 1979.

Hearth Stopper provides customizable, decorative fireplace covers across the USA. Eliminate cold drafts and boost comfort with their premium fireplace opening covers, designed to fit any decor and significantly boost the home's energy efficiency. Learn how to cover fireplace opening with Hearth Stopper fireplace insulated covers.

Heating and air conditioning equipment for residential and commercial applications, 1/2 to 25 tons, under the Comfort-Aire and Century brand names.

Heat Merchants supplies a comprehensive portfolio of heating, plumbing and renewable energy solutions for both domestic and commercial projects. They also provide a range of support services to customers include heating system design and specification, commissioning, ancillary certification, after-sale service and installer training.

Heat Pump Federation lobbies government for long term policy supporting the electrification of heating and cooling, works to raise awareness, understanding and confidence in heat pump technology across both domestic and commercial sectors, and collaborates with government, industry and consumers to make this a reality.

Heatco manufactures gas-fired stainless steel duct heaters. Their mission is to design, build, and deploy America’s highest quality gas heaters while providing industry-leading customer satisfaction.

HeatFix Scotland Ltd is the market leader in Scotland for service & repair on all renewable and carbon-fueled heating appliances. They are the number one choice in Scotland for professional boiler repairs, servicing, and boiler cover.

As a leading provider of home heating repairs in New Jersey, Hudson Heating is a family owned and operated business, licensed, bonded and insured that offers both residential and commercial HVAC repairs, service and installation.

Heil Heating & Cooling Products cater to residential needs by manufacturing light commercial heating and air conditioning products, air purifiers, condensing units, gas furnaces, heat pumps, accessories, 2-25 ton rooftop units.