Gradient’s mission is to cool the world by transforming every home to be more comfortable and healthy for the people who inhabit it — without compromising the environment. The company's vision is a future where everyone has access to comfortable buildings that are fully decarbonized. Their launch product is a direct-to-consumer high-efficiency and low-carbon heat pump.

Grandy & Associates provides business training exclusively to the service and trades industry (HVAC, plumbing, electrical, chimney sweeps, pool and spa, landscaping, security, etc.) They have trained over 16,000 contractors across the United States and Canada on how to run profitable businesses.

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.

Great Lakes Copper provides full line copper tube manufacturer of plumbing, HVAC, medical, coated copper, line sets, ductless line sets and industrial applications. Products are available in coil or straight-length configuration, varying lengths and outside diameters.

Based in West Palm Beach, Greenfox Air Quality specializes in HVAC remediation and air quality services. Their team of seasoned air quality professionals is dedicated to conducting detailed inspections and remediation of residential or commercial HVAC systems. They address a comprehensive range of HVAC and air quality issues, ensuring the environment is not just clean, but truly healthy.

Griswold Controls provides reliable and quality products for HVAC and Irrigation applications. They provide Automatic flow control valves, manual balancing valves, actuated control valves, pressure independent control valves, DeltaT Control valves, actuators, diaphragm valves, and coil piping packages.

H. A. Phillips & Co. is a single source manufacturer and supplier of modulating control solutions for industrial refrigeration systems. They provide ammonia refrigeration valves, control systems, custom ASME pressure vessels, air purgers, Anhydrators, packaged refrigeration controls, regulating and solenoid valves, Level Eye sightglasses, refrigeration flanges.

H.D. Grant Co., Inc. represents many of the best manufacturing lines in the HVAC industry. They supply and distribute exhaust fans, fire dampers, radiation dampers, single duct VAV boxes, fan powered VAV boxes with electric heat, Vibration Isolation, and many other products for the HVAC industry.

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.

HANTEMP Controls offers an innovative line of stainless steel valves, flanges, and other controls built to withstand the harsh conditions of today's industrial refrigeration systems.

Harry Alter Co. is a renowned US-based wholesale distribution of heating and air conditioning equipment, parts and supplies. They provide furnaces, air conditioners, hydronic heating solutions and refrigeration supplies.

Hart-Hammer, Inc. is a US-based provider of sales and engineering support in Iowa, Nebraska, the Quad Cities, and Western Illinois. They represent 27 HVAC manufacturers including AAON, Nailor, Ruskin, CamFil, Strobic, and many others. The company focuses on heating and air conditioning services for commercial/institutional and temperature control/measurement for hospitals and laboratories.

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.

Hays fluid controls makes the world's most effective automatic flow control valves and related vital components for the hvac industry.

Since 1914, HB McClure has served homes and businesses in Central Pennsylvania by providing premier residential, commercial, and design/build mechanical services, including heating, cooling, plumbing, electrical, and fuel oil and propane delivery. Our expert technicians evaluate each job, recommend the best solutions, and allow the client to choose the right option for their needs.

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.

With 16 locations in Canada and the United States, HTS has grown significantly as a full-service, custom HVAC equipment provider since its establishment in 1992. Their products inventory includes chillers, heat pumps, air handling units, valves, building automation systems, heat exchangers, fan coil units, humidifiers and dehumidifiers.

For over 125 years, Redlands and Henry Bush Plumbing, Heating, and Air have been proudly serving the Inland Empire community with top-notch HVAC service and expertise. When it comes to any plumbing and HVAC needs, they're the leaders who customers can rely on for honest service. Their experienced team is dedicated to exceptional service.

Herrera Heating and Air Conditioning Inc are more than just an HVAC company in Westminster – they’re partners in creating comfortable and efficient living and working environments. And as a trusted family-owned HVAC contracting company with over 30 years of experience, they pride themselves on delivering comprehensive services for both residential and commercial properties in Westminster and the entire Metro Denver area.

Honey-Do-Men is an experienced and full-service home improvement contractor. They provide comprehensive remodeling, repair, and maintenance solutions for home owners. For anyone who requires their assistance in gutter repair or replacement, roof repair, or handyman services, they can help.

HotArctic Heating And Cooling is a Nairobi-based air conditioning, cold room, mechanical Ventilation and refrigeration supplier / contractor in Kenya.

Hunt Consolidated, Inc. is a diversified holding company for a privately owned group of entities based in Dallas, Texas. The areas of activity of the different Hunt companies include oil and gas exploration and production, refining, LNG, power, energy, real estate, investments, ranching and infrastructure.

HVAC Doğalgaz, with its fair service approach and perfectionist approach to the work done, is at customers' side with all its possibilities to solve the problems encountered in the installations, especially heating, and bring them to a solution. In all the services they provide, especially regarding heating and installations required for buildings, they will always continue to offer the best to their customers as HVAC Natural Gas.

AC & Heating Equipment Rental are the air treatment specialists who understand the critical importance of air quality and building systems. Founded by three seasoned experts with a combined experience of over 40 years in rent air conditioner and heater rentals, they are passionate about providing exceptional solutions to meet unique client needs. They deliver their services 24/7 across the provinces of Ontario and Quebec in Canada.

HVAC Erie specialize in air duct cleaning, air conditioning repair, and furnace repair in Erie, Pennsylvania, USA. They offer a full range of heating and cooling services, including furnace repair, air conditioning repair, and air duct cleaning. Their experienced technicians are available 24/7 for emergency repairs.

Hybrid Energy AS provides high-end Hybrid Heat Pumps based on their unique patented technology. The Hybrid Heat Pumps reduce carbon footprint and operating costs through higher efficiency.

Hydro Pump Company, based in Omaha, Nebraska, is a wholesale distributor of geothermal heat pumps, HVAC products, and water well products from the nation’s leading manufacturers, serving contractors in Iowa.

IAPMO EGS mark is a valuable asset that assist in promoting products by communicating concern for customers. IAPMO EGS is recognized for technical excellence in testing certifying electrical, pool and spa, fuel gas and solar products that meet the highest standards of public health, safety and environmental quality offer independent testing, certification and listing for mechanical pool, spa and bathtub industries.

Ace Instruments’ IAQ Detectors range empowers the new generation of sustainable buildings to continuously monitor indoor air quality with cutting edge instrumentation. Positive performance on major indoor air quality parameters has been linked to improved productivity, reduced operating cost and carbon footprints. Their extensive experience of over 30 years in manufacturing enables them to deliver customized solutions for unique IAQ applications.