Caleffi North America Inc. are renowned manufacturer of high-quality components for heating, plumbing, air conditioning and renewables systems, for domestic and industrial plants. They also provide separators, manifolds, balancing valves, mixing valves, motorized zone and ball valves, vents, collectors, tanks, controllers, pump stations for hydronic, geothermal and solar thermal systems.

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.

Capital Coil & Air manufactures commercial and industrial OEM replacement and custom HVAC coils, heat exchangers, fan coils & belt drive air handlers. Capital Coil & Air has over a decade of experience in the commercial OEM HVAC replacement & custom design/build industry. Capital Coil & Air has extensive experience working with varied commercial clients that include: engineers, mechanical contractors, government facilities and organizations.

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.

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.

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.

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

Chester-Jenseis Co. Inc. is a manufacturer of sanitary stainless steel heat exchange and other processing equipment. They also provide refrigeration evaporators, water chillers, thermal storage equipment, ice builders and many more.

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.

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.

Watertube steam generators, specializing in packaged D, A, and O type boilers. Shop assembled units with capacities up to 500,000+ pph, 1500 psig design.

Cleaver-Brooks is a complete boiler room solutions provider that manufactures hot water and steam generation products which maximize energy efficiency and reliability while minimizing emissions.

Cold Point Corporation is the industry-leading supplier of aftermarket comfort solutions for commercial and residential applications. They have over 20 years of experience developing OEM-style replacement products to keep customers happy and comfortable. The products are of water source and air source.

ColdZone delivers green refrigeration technologies and is a manufacturer of refrigeration equipment—evaporators, compressor units, chillers, fluid coolers, and defrost controls—specifically designed for the foodservice and convenience store industries. it is a part of the Rheem family of brands.

Coleman is a manufacturer in America. They craft residential heat pumps, air conditioners, furnaces and light commercial equipment, gas furnaces, etc.

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

Comfortmaker provides residential and light commercial heating and air conditioning products, condensing units, furnaces, heat pumps, accessories, 2-25 ton rooftop units.

Compu-Aire manufactures many models of specialty air conditioners for critical electronic systems including computer rooms and other sensitive applications.

ComStar International Inc. is the world's most comprehensive manufacturer of environmentally safe, industrial strength chemical products. They deal with refrigeration and air conditioning R22 Replacement Refrigerants coil cleaners, conditioners and maintenance chemical products, heating and plumbing chemical products, water treatment and odor control.

Concord provides residential heating and air conditioning products, packaged units and splits systems under 5 tons. They produce long-lasting, affordable heating and cooling products in a state-of-the-art facility located in South Carolina. They use only proven materials for every furnace, air conditioner, heat pump and air handler they build.

Condenser & Chiller Services provides complete shell and tube heat exchanger support. They have been performing quality heat exchanger repairs, coatings, and non-destructive eddy current analysis since 1985. Condenser & Chiller Services is also an authorized distributor of cleaning & repair tooling for the leading manufacturers of HVAC&R equipment.

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

Consolidated Hunter is well-established in commercial and residential heating, ventilation, air conditioning and plumbing services. They have implemented systems for commercial/industrial/agricultural clients including rooftop heating, ventilation and air conditioning units, infrared heating, carbon monoxide exhaust, specialized piping, lift stations, boiler systems and much more.

CTI is able to offer state-of-the-art HVAC equipment paired with our advanced controls and automation. Control Technologies has an unparalleled combination of skills, experience, expertise, and resources to provide our 2,000+ clients with custom services and building solutions to effectively integrate and manage facilities with Connected Building Solutions, HVAC Mechanical and Controls Services, and Systems Integration Solutions.

Supplier of gas, steam or electric reactivated desiccant dehumidifiers for humidity control. Systems include outdoor air ventilation coupled with heating and cooling if required.

Cooney Technologies focuses on proving high-quality HVAC solutions through innovative technologies, industry expertise, and superior support.

Custom Coils, Inc. has been a supplier of premium quality copper tube aluminum fin heat exchangers since 1971. Their varied customer base has presented challenging opportunities to manufacture size-critical parts for a wide array of air conditioning and refrigeration equipment throughout the United States, Canada, Latin America and Europe.

Custom Controls Company is the manufacturer of explosion proof, hazardous location and industrial duty air conditioners, heaters, NFPA 496 building pressurizers, chillers and control panels - since 1960.