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.

At Clarke Delta, they survey, design, and manufacture protective solutions. These include Air Conditioning Cages, LST Radiator Guards, Aluminium Coping Systems, Anti-ligature Radiator Guards, Aluminium Coping Systems, Guttering and Fascia Systems, and much more.

Clean Air Filter, Co. was established in 1990 to offer farmers a solution to their dusty chemical environment.

Clean Air Fund is a global philanthropic organization working with governments, funders, businesses and campaigners to create a future where everyone can breathe clean air. The fund and partner with organizations that promote air quality data, build public demand for clean air, and drive policy change. They influence and support decision-makers to act on air pollution.

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.

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.

Clenzair provides distribution and installation of pioneer air sanitization technology. Clenzair neutralizes airborne and surface bacteria and viruses such as MRSA, Bird Flu, Swine Flu, Corona Virus (SARS), Ebola, Mould and E.Coli. A Clenzair installation is classified as an Active filtration system. This means that it can neutralize a virus suspended in the air or on any surface in the room, wherever it may be.

CLIMACIAT represents the modern air handling units that CIAT has been offering for more than 40 years. The first air handling units were produced more than 80 years ago. Ecodesign is a very important component of the studies for the CLIMACIAT Airaccess/Airtech/Airclean range. The resulting product has a low environmental impact, in terms of its constituent materials and their recyclability.

ClimaCool designs and manufactures modular chiller systems configurable to meet client’s requirements. Their modular chillers are ideally suited for all commercial systems including heat recovery and heat pumps, free cooling, geo exchange central plants and variable flow systems.

Climalife Galco is one of the world's leading distributors of products for refrigeration, air conditioning and heating installations. It markets a complete range of refrigerants (Frio+) and chemical products such as lubricants, heat transfer fluids, cleaning products.

CDI designs and manufactures desiccant dehumidifiers and critical process air handlers. Optional patent NoThruMetal design meets demand of low temperature environments without condensing.

Climate Control Company has been a licensed contractor for heating, air conditioning and plumbing committed to delivering professional service, repair, maintenance and installation expertise to the home and business owners of Aspen and Vail and the surrounding area of the Western Slope.

The Climate Control Group (CCG) is a diverse collection of HVAC products and solutions for a variety of applications and markets. They design and manufacture products for multiple applications, where the comfort and efficiency of climate-controlled spaces are required.

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.

Climate Rental Solutions provides temporary climate control equipment for both sale and hire. They provide an extensive range of temporary portable air conditioners, packaged air conditioners, large evaporative coolers, electric and gas heaters as well as a range of drying equipment.

Climatec has been making buildings safer, more comfortable and efficient for over 40 years. They provide Building Automation, Enterprise Energy Management, Energy Services, Security Solutions, Life Safety, HVAC Solutions, and Service.

Climatech of Professional Air offers a number of ways to clean and freshen the air in the home so the users can breathe easier without compromising comfort. Their indoor air purification systems will keep the family breathing clean air year-round.

Founded in 2003 in Zhengzhou, Cling has been dedicated to making green, reliable and efficient bus air conditioners. In 2023, Cling totally produced over 61826 sets bus air conditioners with over 600,000 sets references running globally, becoming forefront bus air conditioner manufacturer of the world.

Clockwork's One Hour Heating & Air Conditioning franchisees offer residential repairs, replacements, maintenance, IAQ, duct work and protection plans.

CM Engineering is a progressive mechanical, electrical and plumbing engineering firm, founded in 1993, to expand the level of innovation and professionalism available to prospective clients. They serve clients nationwide and worldwide.

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.

They supply and export the complete range of products and accessories for Mechanical, Electrical, Plumbing, Heating, Air-conditioning and Ventilation equipment to every corner of the world. In fact, we have the flexibility and capability to ship any product from the engineering industry to our customers located in offshore regions.

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.

COIT is a full-service Cleaning & Restoration company that can uniquely handle all maintenance cleaning needs or for those unforeseen mishaps requiring professional remediation.

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 heat pump water heaters offer commercial and industrial users of sanitary hot water an energy efficient means of heating water to temperatures as high as 185°F (85°C) in a single pass. These heat pump water heaters use the same operating principle as an air-conditioner or domestic refrigerator.

Colorado Cleantech Industries Association actively and successfully advocates for Colorado’s clean technology industries at the Colorado State Legislature, and to the Administration of the State Governor. The association's efforts have directly led to creation of programs that support the growth of the industries and serve to position Colorado as a clean energy leader.