Building Engineering Services Association (BESA), until 2012 the Heating and Ventilating Contractors Association, and from then until 2016, B&ES, is the main UK trade association for companies that design, install, commission and maintain heating, ventilation, air conditioning, refrigeration (HVACR) and related engineering projects.

Carrier Air Con is a globally renowned provider of heating, air-conditioning and refrigeration solutions. They provide innovative new products and services that improve global comfort and efficiency.

Carrier Corp. is a global residential product innovations and solutions firm. Their inventory includes advanced communicating controls and thermostats, high-efficiency split system air conditioners and heat pumps, ductless split systems, gas and oil furnaces, boilers, fan and evaporator coils, geothermal systems, zoning systems, a complete line of indoor air quality products and small packaged products.

Founded in 1946, Century Heating and Cooling Products, A MARS Co. is a family-owned and operated supplier of quality motors, components, service/installation parts, and equipment for the HVAC/R industry. The company’s Equipment Division offers residential and commercial heating, cooling, and dehumidification equipment under the Comfort-Aire and Century brand names in the United States and under the Comfort-Aire by Aitons brand name in Canada. The

Chillflow Solutions was born from the realization that there was a gap in the market for a locally run air-conditioning and refrigeration business. A specialist business that could provide high-quality services to a wide range of industries, led by engineering professionals with the technical expertise and relevant experience needed to succeed.

The Chartered Institute of Plumbing and Heating Engineering (CIPHE) is the professional body for the UK plumbing and heating industry. It is also an educational charity. As the professional body for the UK plumbing and heating industry, the CIPHE has represented, supported and developed members since 1906.

Clean Air Systems of LA, Inc. is the one stop shop for commercial and residential air conditioning and duct cleaning services in Shreveport, Louisiana, USA. They are a Charter Member of National Air Duct Cleaners Association as well as a member of the Indoor Air Quality Association, the Comfort Institute, the Shreveport Bossier & National Home Builders Association, and the Better Business Bureau of Shreveport, LA.

Climatic Engineering Limited have recognized that need and have formulated a strategy, which offers practical, effective solutions to problems associated with environmental pollution, as they relate to the air everyone breathes.

Comfort Pro's Heating & Air Conditioning are dedicated to making your home a sanctuary of comfort and tranquility. With over two decades of experience, they have been proudly serving homeowners and businesses across Washington, providing top-notch HVAC services that customers can rely on.

Since its founding in 2008, Constant Home Comfort has serviced customers in Greater Toronto and surrounding areas, with high-quality, innovative and practical HVAC improvement products. They offer top-quality HVAC, furnace, and water tank services urgently. They also partner with renowned brands like Lennox, Bosch, Carrier, and more, offering a range of high-performance heat pumps.

Coolair Service Ltd is an air conditioning installation, service, and maintenance company. Its customer services advisors and technical support teams are on hand to offer to advise and schedule visits whenever and wherever required.

CoolKit is a manufacturer of refrigerated vehicles for the temperature controlled transport industry. They fit conversion and refrigeration units into vehicles and also provide maintenance and repair of fridge and freezer vans.

Cora Duct Cleaning offers a wide array of air duct cleaning services for homes, commercial and industrial across Southern Ontario. Established in 2010, Cora has provided duct cleaning services to thousands of clients across the GTA and Ontario. Apart from duct cleaning, specialized air filters, furnace cleaning, dryer vent cleaning, a/c cleaning, central vacuum cleaning and other services are provided by the company.

Cosaf is a pioneering expert in the application, design, installation, and commissioning of pioneering-edge evaporative cooling, heating, smoke/fire ventilation, and air conditioning (HVAC) systems. Combining 30 years of heritage with considerable experience and expertise has enabled Cosaf to develop systems and services that have been specifically designed to minimize energy consumption while maximizing both free cooling and heat reclamation.

CWP is a pioneering renewable energy developer with expertise across the full project lifecycle, developing, managing, and owning projects with demonstrated success. Using a proven approach to follow each project from inception to full operation, ensure genuine engagement with all stakeholders at each stage of development. Mission is to improve the environment for current and future generations by pioneering the transition to renewable energy.

Dairyland Power Cooperative, a Touchstone Energy Cooperative, was formed in December 1941. Headquartered in La Crosse, WI, Dairyland is a generation and transmission (G&T) cooperative providing wholesale electrical requirements for 24 distribution cooperatives and 27 municipal utilities. These cooperatives and municipals, in turn, supply the energy needs of members and customers in a four-state area.

Dawsongroup truck and trailer are the UK's largest independent truck and trailer provider specializing in contract hire, rental and leasing of 4×2 and 6×2 tractor units; curtain side, box and refrigerated rigids; curtain side, box, skeletal, step frame, platform and refrigerated trailers; car transporters; and specialist and bespoke vehicles.

Degree Day is an ISO 9001:2015 certified Indore-based Air Conditioning firm, which provides one-stop HVAC system solutions and consider themselves to be one of the major organizations for Design and Project Execution of Ventilation, Refrigeration and Air Conditioning applications.

Dennis’ Heating and Air Conditioning, Inc provides HVAC Installation, Retrofits, Service and Maintenance, as well as a full service sheet Metal Fabrication Shop. They are capable of fabricating almost anything, if customers can draw it, they can build it. The company is known for their knowledge, reliability, and incredible customer service.

DHL Group is the world's pioneer logistic company. The DHL Group connects people and markets and is an enabler of global trade. It aspires to be the first choice for customers, employees and investors worldwide. To this end, the Group focuses on growth in its profitable core logistics businesses and accelerating the digital transformation in all business divisions.

Doucette Industries is a globally renowned supplier of heat exchangers, vibration absorbers and OEM parts to the HVAC/R industry since 1975. Their extensive products include suction line heat exchangers, heat recovery desuperheaters, coaxial coils, brazed plates, tube-in-tube condensers, shell and tube heat exchangers, vibration absorbers, pool water heat exchangers.

Safe-T-Flush by Drain Shield is the new standard for condensate drain management, preventing leaks and clogs by ensuring a natural flow of condensation out of the drain line. The Safe-T-Flush system eliminates repetitive service calls, improve air quality with the unit, and prevent extensive and costly property damage.

Established in 1995, Dusty Ducts, Inc. is certified as a minority-woman-owned-small business. As a Michigan corporation we provide HVAC Restoration, Indoor Air Quality and Energy Conservation for clients throughout Michigan and across the Midwest United States.

Dycon Power Solutions Ltd is an innovative British technology company producing advanced, low-voltage power supply products. Since 2004, it has been the market pioneer in designing and manufacturing a full range of inventive, energy-efficient, “green” switched-mode power supply units for applications across a large number of differing sectors including security, access control, and CCTV.

EcoMESH is a unique mesh and water spray system that improves the performance of Air Cooled Chillers, Dry Coolers and Refrigeration plant whilst reducing energy consumption by up to 44%.

EDEN’s mission is to empower contractors with innovative technology, helping them to grow their businesses and provide exceptional customer experiences. Founded in 2021, the Seattle-based startup provides a digital sales enablement tool to help HVAC contractors provide quick and accurate instant quotes for HVAC systems. By leveraging technology to provide prices and detailed breakdowns of eligible incentives and expected utility savings online.

Since 1999, Elite Cooling, Heating & Plumbing has been serving Bradenton, Sarasota, and Manatee counties with top-quality HVAC and plumbing services. With more than 30 years of experience, their licensed and insured team provides quality work and great customer service every time.

Embraco is a global company that promotes quality of life through innovative cooling solutions. Embraco provides cooling solutions for household, commercial, such as medical and retail applications, and aftermarket segments.

ESCO Home Services provides the region of Salt Lake City and surrounding areas with a wide range of heating, air conditioning, plumbing and electrical solutions. They also provide HVAC installation and maintenance, furnace repair, AC repair and servicing, and plumbing services.

The Eubank Division of Airxcel, Inc. is a fast growing manufacturer of Wall Mount vertical packaged air conditioners and heat pumps. Eubank is a premium supplier of air conditioner units, heat pumps, dehumidifiers, and compressors