The Center for Climate and Energy Solutions (C2ES) is an independent, nonpartisan, non-profit organization working to forge practical solutions to climate change. Their mission is to advance strong policy and action to reduce greenhouse gas emissions, promote clean energy, and strengthen resilience to climate impacts.

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

CG Plumbing deals in both domestic and commercial mechanical installations along with installation of UPVC soffits, fascia's and HVAC systems.

Chevron's greatest resource is their people. They provide Crude Oil & Natural Gas Production, Liquefied Natural Gas, Refining, Motor & Jet Fuel, Lubricants, Additives and Petrochemicals Marketing, Energy & Supply Trading, Energy Technologies, Energy Efficiency Solutions, Pipelines, and Shipping.

Christmas Air has always been great to work with as they offer regular maintenance for HVAC equipment and valuable discounts on their services and new equipment. They offer free estimates for heating & air conditioning equipment replacement.

Chromalox is a thermal technology company. They engineer thermal solutions for the world's toughest industrial heating applications. Their Heat Trace segment delivers temperature management solutions for piping systems, valves, and tanks.

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.

CLEAResult is the largest provider of energy efficiency, energy transition, and decarbonization solutions in North America. Since 2003, its mission has been to change the way people use energy. Now experts lead the transition to a sustainable, equitable, and carbon-neutral future for the communities and the planet.

As a locally owned and operated company, Climate Control Systems stands behind their work. Owned and operated by the same family for over 50 years, they provide customers with the best HVAC service in Frankfort and the surrounding areas. All of their technicians are trained and skilled. They perform background checks on all the employees to ensure the homes and businesses are safe in their hands.

ClimateMaster researches, develops, manufacturers and markets the most advanced water source and geothermal heat pump systems. They also offer a comprehensive product line with innovative product selection software for residential, commercial and industrial applications.

Climaveneta is a brand of Mitsubishi Electric with over 45 years-experience in central climate control systems industry and a complete range of solutions. Climaveneta’s mission is to provide energy efficient heating, air conditioning, and data center cooling solutions that enhance everyone's comfort and improves the profitability of a building while limiting CO2 emission levels.

Since its establishment in 1985, CMC has carved an international reputation for designing controls without compromise and that add value to manufacturers that incorporate them. CMC’s approach to producing robust, multi-functional control solutions from its Belgium-based facility has seen the business evolve into a multinational firm with a presence in China, USA, France, Turkey and the UK.

Coastal Pacific Xpress is a leading Western Canadian trucking company with a fleet of 340 trucks and 575 trailers. CPX provides flexible and tailored solutions encompassing truckload (TL) and less-than-truckload (LTL) services and the necessary warehouse & distribution capacities to augment the over-the-road services.

Since 1950, Cochrane Ventilation has been working with New England’s businesses, non-profit institutions, and leaders in healthcare, to manage their indoor environments. Cochrane Ventilation can assist you with managing your indoor air environment. They offer a host of integrated services from HVAC cleaning, robotic imaging, air handler unit maintenance, and restoration, kitchen exhaust maintenance, and specialty ventilation system cleaning.

Cocoon Revolution by Thermasi is the first revolution in Indoor Climate Control since 1919. They offer the most affordable, highest-efficiency heating and cooling equipment on the planet. Their revolutionary furnaces and AC units feature a proprietary design and include a super-efficient operating system.

Since 1964, Cole Industrial has been the Northwest's provider of new, used and rental boiler equipment for the process and comfort heating needs of nearly every industry around. Their diverse product line includes boiler equipment from industry-leading Cleaver-Brooks, for which we are the region's sole manufacturers'​ representative.

Colmac Coil Manufacturing supplies heating and cooling coils to OEM customers and the HVAC industry. They also provide unit coolers; air cooled condensers; blast freezers; hydrocoolers; fluid coolers and heat pipes.

Comfort Air Heating and Cooling company is licensed and insured to protect. When heating or air-conditioning system is not working right effective solution from a company that is respectful.

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.

Comfort Solutions HVAC, a locally owned and operated residential heating and cooling company, prioritizes the well-being of its customers. Their expertise lies in ensuring comfort within the confines of homes, excelling in top-notch service, maintenance, and replacement of residential heating and air conditioning systems.

Comfort Systems USA is a national heating, ventilation and cooling (HVAC) company that offers a single company to provide complete HVAC service, anywhere, anytime.

Condair is the global leader in humidification, dehumidification and evaporative cooling. Supported by science, they engineer individual, holistic solutions that customers can trust through the entire lifecycle. With optimal humidity, we increase productivity and create healthier built environments.

Condenser and Chiller Services offers in field eddy current inspection, remote video inspection, protective epoxy coatings and complete retubing service with tubes in stock.

Conditioned Air Association of Georgia (CAAG) is a state-wide, nonprofit trade association that represents heating, ventilation, air conditioning, and refrigeration contractors (HVAC-R) who work on residential, commercial, and industrial construction projects.

Conduit Tech is dedicated to helping HVAC professionals do what they do best - serve their customers with the right solution for their home. Their mission is to enable the critical trades that form the backbone of the built world, starting with residential HVAC. They focus on supporting HVAC contractors with better tools to drive comfortable, efficient and sustainable homes for every homeowner.

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.

Cool Air Technologies is one of Orange County’s most trusted names for heating and air, and for good reason. They offer greater warranty protection, with Orange County’s longest and most comprehensive install labor warrant.

Since 2004, Cool Quest, LLC has been providing residents and business owners in Mesa, Arizona, USA and surrounding areas with dependable, high-quality refrigeration services and more. Their heating and air conditioning contractors specialize in commercial air conditioning repair and residential air conditioning repair heating, ventilation and air conditioning (HVAC) maintenance, repair and installation.

Cool Running Air specializes in providing residential and commercial HVAC services to home and small business owners in South Florida, USA. For commercial clients, they specialize in rooftop units, VRF systems, mini-splits, PTACs, split systems, refrigeration, and water-source heat pumps. On the residential side, they focus on new construction, split systems, single-zone mini-splits, and whole-home mini-split solutions.