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.

Get first-rate electronic test equipment from Calright instruments for all test and measurement needs. They are a service-disabled veteran-owned small business that strives to deliver premium products sourced from some of the most renowned manufacturers on the market. Whether looking to buy, rent or lease new electronic test equipment, used test equipment or refurbished test and measurement equipment, they are the right source for all needs.

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.

Cambridge has invested heavily in research and development to offer HTHV (high temperature heating and ventilation) products that significantly save energy and reduce operating costs. Whether in new construction or existing facility retrofits, Cambridge’s designing, manufacturing and testing processes ensure that each HVAC system is certified safe with unsurpassed product quality.

Cambridge Consultants help clients identify, create and launch breakthrough products and services that disrupt their markets. Services provided include wireless product development, medical device development, consumer product development, product development, contract design services, ASIC design, technology consulting, drug delivery device development, mobile communications and innovative product development.

Cambridge Engineering is a manufacturer of energy efficent heating/ventilation systems; gas-fired HTHV space heaters, and make-up air units.

Cambridge Heating and Cooling provides affordable HVAC repair and maintenac services and more.

Camfil is a manufacturer of air filtration equipment and replacement air filters for HVAC, cleanrooms and the containment industry.

Canal Marine & Industrial is the provider of engineering and 24/7 multi-trade electrical and mechanical installation, maintenance, and repair services to government, industrial, commercial, and marine transport clients in the Great Lakes Region.

At Canarm, we are all very proud of the way they company has developed into a world marketer and manufacturer of air moving, lighting and related environmental products.

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.

Since 1972, Cannon Boiler Works has been committed to partnering with our customers to help produce the required energy for their needs in the most efficient manner possible, reducing fuel costs and emission of greenhouse gasses.

CAPER Group is a multi-trade business established by the fusion of ARAC Refrigeration & Air Conditioning Pty Ltd and Powered Resources Pty Ltd. The integration of these two companies and their 25+ years’ experience provides an unparalleled service for the domestic, commercial, mining and distribution industries. They can deliver a wide range of services, from routine maintenance through to large installation projects.

Capital Cooling is the UK’s premier commercial refrigeration business supplying many of the major brands in the leisure, retail and hospitality sectors. A fast paced and rapidly evolving business Capital Cooling aims to deliver high quality equipment and exceptional value to their clients. Their unique and exciting range of commercial refrigeration equipment has been designed and refined using the experience they gained over the last 20 years.

Capital’s holistic approach to heating system installation means we look at the big picture to help users choose the unit that fits the specific home, lifestyle and budget. They’re experts at installing every kind of heating system.

Capital Plumbing and Heating has been Edmonton's trusted provider of HVAC and plumbing services for over 20 years. Its expert team excels in the installation, maintenance, and repair of heating systems, AC units, furnaces, and heat pumps. Using advanced technology ensures comfort and energy efficiency. Its plumbing services cover everything from simple repairs to complex system designs and installations.

As one of the oldest commercial refrigeration contractors, Capital Refrigeration is proud to offer a vast selection of reliable, energy-efficient and eco-friendly products from cabinets and counters, to blast chillers and freezers. Their products are available in a variety of designs, shapes and sizes, to ensure users find the right product for them and their business.

They are a Polish company, a manufacturer of components for heating and sanitary installations, present on the market for almost 30 years. Our manufacturing facility and headquarters are located in Świebodzice - a town in Lower Silesia, just 30 minutes from the A4 motorway.

Carbon Engineering (CE) is a Canadian-based clean energy company leading the commercialization of groundbreaking technology that captures CO₂ directly from air, and a second technology that synthesizes it into clean, affordable transportation fuels.

Carbon Lighthouse is on a mission to stop climate change by delivering profitable climate solutions for commercial real estate portfolios. Its unique Energy Savings-as-a-Service model and patented AI software platform CLUES turn wasted energy into guaranteed financial value, operational excellence and measurable climate impact for clients.

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.

Care Services Inc. of Williamsport, Maryland, is a full-service HVAC company specializing in heating and air conditioning repairs, routine maintenance checks and new system installations. Their professional, dependable team is available 24/7 for emergency services and works on all major brands of heating, cooling and refrigeration equipment. Hours of operation: 24/7 Emergency service [Office Hours: Monday – Friday: 8 AM – 5 PM]

CAREL is a front-runner in control solutions for air-conditioning, refrigeration and heating, and systems for humidification and evaporative cooling. The products are designed to bring energy savings and reduce the environmental impact of machinery and systems.

CAREL is a globally renowned control solutions provider for air-conditioning, refrigeration and heating, and cooling systems. Their products are designed to bring energy savings and reduce the environmental impact of machinery and systems. Their solutions are used in commercial, industrial and residential applications.

CARLIEUKLIMA srl is a modern, dynamic company European leader in the production of radiant heating systems and industrial cooling system (adiabatic cooling), with a special attention focused on large common areas and workplaces ambient comfort blending environmental awareness with the latest technology such as the BIM project method.

Carlin Combustion Technology, a pioneering innovator in the heating industry, specializes in manufacturing high-quality burners, controls, and igniters for residential and commercial applications. With a focus on technological advancement, particularly in biofuel compatibility, Carlin Combustion Technology offers cutting-edge solutions that meet the evolving demands of cleaner energy and improved efficiency.

Carlisle HVAC Brands is a unified family of the best HVAC products and solutions. Dynair, Hardcast, and Gripnail are storied brands with a history of high-quality products and high-quality customer service.

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.

Based in Lexington, South Carolina, Carolina Refrigeration provides refrigeration and commercial and industrial HVAC services 24 hours a day, seven days a week to customers in South Carolina, North Carolina, Georgia, Alabama, southern Virginia and Tennessee. Carolina Refrigeration serves customers ranging from industrial processing plants to wholesale shopping clubs and supermarket grocers to convenience stores.