Green & Cool World Refrigeration AB is a globally renowned supplier of transcritical refrigeration systems that uses environmentally-friendly carbon dioxide (CO2) as a refrigerant. In addition to outstanding environmental performance, the Green & Cool units offer superior lifetime economy and high reliability, as well as being very user-friendly. Green & Cool has developed modern CO2 refrigeration to be a commercially-attractive alternative.

Green Builder Media is a globally renowned media company in the North American residential building and HVAC industry, focused exclusively on green building and responsible growth. With a comprehensive suite of print media, online options, demonstration homes, case studies, training and education vehicles, and live events, Green Builder Media assists building professionals prepare themselves for the new green economy.

Green Clean Institute is a globally renowned green energy certification and standards organization for HVAC systems and services. They have been offering green training and certification for over twenty years now.

The Green Point network is focused on satisfying all your requests as a customer. This service organization with over 50 locations worldwide ensures customers get the right support. Green Point specialists offer a wide range of services, from engineer to engineer, because you deserve the best response. Compressor repairs and overhauls, original spare parts and oil, intelligent and proactive services – this is what Green Point is all about.

At Green Refrigeration LLC, they will take care of all commercial refrigeration, HVAC services, custom wine cellars, glycol chillers, walk-in coolers & freezers, food equipment, Ice machines (cubers & flakers), Ice machine rental, cold storage solutions, gelato machines, and commercial hot water heaters needs from start to finish. They provide high-quality services for commercial & residential customers in Palm Beach, FL.

Greenergy Data Centers is one of the largest and most power-efficient purpose-built data center solutions provider in the Baltic region. They ensure that the stored data has the smallest possible ecological footprint, while utilizing the benefits of secure large-scale data management. Their facility in Tallinn is the most energy-efficient and secure data center in the Baltics.

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.

GS1 Germany accompanies the development and implementation of open, cross-industry, worldwide standards. On this basis, they also develop process and application recommendations. They support companies from different industries in the implementation and show solutions for more added value.

Guangdong Chigo HVAC Equipment Co., Ltd. (Chigo HVAC) was established in January 2011. The company specializes in central air-conditioning product R&D, manufacturing, sales, engineering design, installation, and after-sales service.

Giwee Group is a global technology group integrating the production, research, and marketing of HVAC and consumer electrical appliances. The group has gathered many high-quality professional and technical talents in China, relying on technological innovation to develop products that are more in line with market trends and consumer needs, creating a more comfortable and harmonious living space for users.

Gundlach’s Plumbing and Sheet Metal is built on a rich history of integrity and innovation. They have been serving the air conditioning, plumbing, and heating needs of Bakersfield, CA for over 100 years. At Gundlach’s, customers' comfort comes first and foremost. They offer a full suite of home comfort services. Gundlach’s provides and installs only the highest quality products.

GV Booth Plumbing & Heating provides high quality service and installation of HVAC systems in Loughborough region of Leicestershire, United Kingdom.

H.C. Nye Company, Inc. is a Manufacturer’s Representative of Engineered, Applied, and Industrial HVAC Systems. They specialize in the assisting consulting engineers, construction managers, mechanical contractors and building owners in the application, selection, and sale of HVAC mechanical equipment.

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.

Haisma Heating & Cooling Inc. is an HVAC company serving West Michigan. The company was established by Garry Haisma, a Northwest side Grand Rapids area native, in 1981.

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.

Halton Group is a family-owned, global technology pioneer in indoor air solutions for demanding spaces. They enable safe, comfortable, and productive indoor environments that are energy-efficient and comply with sustainable principles.

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.

HAMPDEN ENGINEERING CORPORATION has built a reputation for manufacturing Cutting Edge, Engineering and Technology Training Equipment of the highest quality since 1954.

Hardcast encompasses Hardcast Duct Sealants and Adhesives, DynAir Airflow Hardware and Accessories, and the Nexus 4-Bolt Flange Closure System. As an industry leader, Hardcast supplies superior products and engineered solutions to ensure the sustainability of your HVAC system.

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.

Hartman Brothers Heating & Air Conditioning Inc is a full service HVAC company based in New Haven, IN. They offer a wide variety of products and services including installation; engineering; sheet metal fabrication; custom designed heating, cooling, and ventilation systems.

Harts Services was founded in Tacoma in 2013 by co-owners Richard Hart and Dan Hartsough. Harts Plumbers, Electricians and HVAC Technicians offers residential plumbing, electrical and HVAC solutions and has a 4.9/5 rating on Google. Guided by its motto, We Care More, the company is committed to incorporating a caring attitude into every aspect of the business.

Hawkins HVAC Distributors is a new company with a strong history in North Carolina set on delivering Charlotte and the surrounding areas the service it deserves. They provide parts of all residential and commercial HVAC systems.

Haynes Mechanical Systems has provided technical facilities services for the commercial real estate market since 1968. They focus on working together with the customers to provide solutions to their heating, ventilation, and air conditioning (HVAC) needs.

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.

Health and Safety Executive (HSE) is the national independent watchdog for work-related health, safety and illness. Their mission is to prevent death, injury and ill health in Britain's workplaces. They are an independent regulator and act in the public interest to reduce work-related death and serious injury across Great Britain’s workplaces.