Callahan Roach is the originator of flat rate pricing in the HVAC industry and now offer a mobile service call app for iOS. They are creating the most powerful pricing platform and selling tools in the HVAC, plumbing, electrical, and pool industries.

CALMAC manufactures thermal energy storage for more environmentally friendly, low cost cooling as well as skating floors for ice rinks around the world. The company specializes in ice storage and has a long history of commitment to innovative energy saving solutions including patents for over 200 products.

A national nonprofit consortium with offices in New York, Michigan, Colorado and California, CALSTART partners with 210+ member company and agency innovators to build a prosperous, efficient and clean high-tech transportation industry. CALSTART accelerates the pace of technology and is a market building organization.

Canarsee is an online store with a concentration on Plumbing, HVAC and PEX supplies. They carry high quality products and aim to deliver a compelling value and flawless shopping experience to their customers.

Carbon Pulse is an independent private venture headquartered in London, UK. It was founded by three ex-Reuters/Point Carbon journalists with almost 30 years experience between them in covering carbon markets and climate policy.

Heating and air conditioning in general and the interest in detailed technology of furnaces, heat pumps and alternative energy were the foundation for Horace and Scott Kelly, when they started the heating and air conditioning contractor and service company Carolina Heating Service, Inc. in 1981 in Greenville SC.

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.

The Carver Group owns and manages a portfolio of brands which develop and manufacture products and solutions for building ventilation, air heating and cooling. Their products are sold worldwide through subsidiary offices and a network of distributors.

CAS DataLoggers is a distributor of data loggers, data acquisition equipment, temperature monitoring systems, and paperless recorders. Their team of sales engineers specialize in finding accurate and efficient solutions for your specific data recording needs.

CCK is a manufacturing company specializing in the production of ventilation equipment, air handling units, fans, heat exchangers, smoke extraction systems, fire dampers, ventilation accessories.

CCOM Group, Inc. and its subsidiaries are known for their heating, ventilating and air conditioning (HVAC), climate control systems, plumbing and electrical supplies. Through its subsidiaries and divisions (Universal Supply Group, RAL Supply Group, S&A Supply), they distributes equipment, parts,and accessories to the Northeast. They serve contractors, consumers, builders, and the commercial and industrial sectors.

CE Mechanical is premier HVAC mechanical contractor, specializing in comprehensive services, including installation, maintenance, retrofits, and tenant improvements. With a dedicated focus on quality and customer satisfaction, they proudly serve all of Southern California. CE Mechanical’s innovative solutions help to lower operating costs, reduce capital expenditures, and maximize value for their clients.

CEMLINE manufactures tanks, pressure vessels, packaged water heaters, unfired steam clean generators, and replacement tube bundles to suit customer requirements since 1935. Their products are used for the storing and heating of water and liquids in plumbing and heating systems and industrial processes.

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

Chatham Brass is a family owned and operated plumbing and electrical manufacturer located in central New Jersey, USA. They provide the plumbing and electrical industries with quality products such as pipe cable, electrical heating, silicone sealants, thermostats and controls, guards along with extensive inventory and exceptional customer care.

Christian & Co. Inc. is a Liaison between The World's Premier Manufacturers and Select Distributors in Michigan and Toledo, OH.

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.

Cinch Home Services is a home services company that makes it easy for everyone to enjoy their home to the fullest. Cinch complete home plan covers appliances from refrigerators and ovens to washers, dryers and more. They provide warranty plans for air conditioning, heating, plumbing and electrical components.

Cincy Heating & Cooling is a professional residential and commercial HVAC service company serving Cincinnati Ohio and the surrounding areas. They also provide emergency air conditioning repair services for the locals in the areas they serve if customers are having an emergency.

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.

Easily installed in new or existing heating and cooling systems, Clean Comfort whole-home solutions work invisibly, silently and automatically to treat and filter the air in homes. Whole home air cleaners by Clean Comfort help protect and maintain the efficiency of central heating and cooling system by eliminating the build-up of dirt, dust and other pollutants. Clean Comfort humidifiers and dehumidifiers can make the air feel warmer and cooler.

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.

At Climate Pros, they take pride in being a trusted partner - serving commercial refrigeration and HVAC systems for hundreds of brands and thousands of locations nationwide with the rapidly expanding team.

The Coast Products company was founded in 1968, representing three ventilation equipment manufacturers. They provide commercial, marine, and industrial fans and blowers. Louvers, dampers, fire dampers.

Cody & Sons is a family-owned and operated HVAC service company, specializing in residential plumbing, heating and air repair and remodels.

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.