Radialight provides HVAC solutions like heating and air conditioning and is based out of Italy.

Rapid Engineering is an Industrial and commercial HVAC manufacturer. They manufacture make-up air and custom rooftop units, indirect-fired heaters, make-up air heaters, evaporative coolers, and electronic control systems for direct fired air handlers.

RefComp provides solutions like Air Conditioning, Refrigeration, Heating, Cooling, etc and is based out of Italy.

RefPlus is a world-renowned manufacturer of refrigeration products. At the forefront of the latest technological innovations, their equipment combines performance and reliability.

Refra is a well-known manufacturer of refrigeration and air conditioning equipment in Europe. Distinguished by a highly complex and unique offer of refrigeration products, the company can design and manufacture non-standard products, fully customized and completed according to customer requirements. Refra has firmly established itself in the European refrigeration market.

Refrigeration Design Technologies (RDT) designs and manufactures refrigeration systems for food service operations. RDT has equipment in many restaurants, hotels, casinos, universities, hospitals, prisons, corporate dining facilities, sporting stadiums and theme parks.

With over 75 years of experience and 18 branches spanning across Western Canada, Refrigerative Supply Limited is now one of the country’s leading distributors of residential and commercial HVAC and refrigeration equipment, parts and tools. RSL continues to invest in providing its customers with fast, personable, and reliable service both in-store and online.

RWC and its family of brands develop safe, sustainable, and efficient solutions to help shape a better world. We engineer and innovate products to integrate seamlessly within the modern built environment. RWC and its family of brands transform performance and efficiency for plumbing and heating, smart homes, and specialist industries around the world.

Remeha specializes in providing energy-efficient, sustainable and economical heating solution for commercial applications. They are a pioneer of condensing boiler technology. Their products include high-performance renewable and low carbon heating solutions, such as Combined Heat and Power (CHP) and Gas Absorption Heat Pumps (GAHP) that can be installed alone or combined with boilers to create a low carbon plant room.

Renew East Ltd was born with the aim of having a positive effect on the environment and making sustainability accessible to all. It aims to simplify the process of installing an air source heat pump in the home while providing exceptional and innovative service to customers.

Renewable Equipment Solutions (RES) specializes in the design and supply of bespoke renewable equipment for domestic and commercial premises across the United Kingdom (UK). They offer industry-renowned equipment, comprehensive system designs, and expert technical support. They are a MCS accredited, HEIS consumer code member, TrustMark registered and NICEIC approved company.

Rescue Air Heating and Cooling is focused on providing residential HVAC installation, repair, and maintenance throughout all of North Texas. They have upfront, no surprise pricing, so their customers know exactly what they’re paying for in advance. They're based in Richardson, Texas with a focus on Dallas, and are proud to serve all of the DFW Metroplex.

Resolute is a well-capitalized, deeply experienced company focused on growth by providing service to a wide spectrum of customers in the HVAC industry. They provide Rental Chillers, Compressors, RSR's, HVAC, HVACR, Rental Heat, Rental Power, Rental AC, Rental Dehumidification, Rental Fans, Rental Air Handlers, Rental Cooling Towers, Rental Generators and much more.

The Retrofit Academy is the driving force in retrofit knowledge and skills: building the supply chain with government, industry & education providers.

Richmonds Plumbing & Heating Merchants Ltd have extensive experience in the plumbing and heating trade to provide excellent customer service. Its many loyal and long-standing customers are a testament to its success in ensuring that it consistently adheres to be a guiding principal.

RightTek excels in providing real-life Residential HVAC Training from entry-level classes to advanced specialized training for senior technicians. As an Army-approved Career Skills Program (CSP) provider, RightTek re-tools soldiers leaving active duty for a rewarding career in the Residential HVAC Industry.

Rinnai is a manufacture of heating and cooling equipment. Some of their products are water controllers, temperature controllers, LS 800 Gas Fire, inverter cassette and more.

Rio Heating and Cooling in Burnaby, British Columbia, offers expert AC installation, repair, and comprehensive heating services. As a trusted local business, they ensure comfort during summer and winter. Their tailored services include furnace installation and repair, backed by skilled technicians who diagnose and resolve HVAC issues efficiently. They are committed to delivering precise, reliable, and satisfying results for varied comfort needs.

RK Mechanical Air Services prides itself on being the trusted HVAC partner for residential and commercial clients across Placer, Sacramento, Yolo, Napa, Sonoma, and Marin counties. Since 2019, after partnering with FA & AO, their locally owned business has grown and now operates broadly in Northern California, delivering top-tier heating, cooling, air conditioning, ventilation, furnace repair, air quality solutions, and HVAC maintenance.

Robert Heath Heating provides domestic heating service, maintenance, and installation for private clients and social landlords. Competitive service for both residential and commercial gas services.

Roen Est is a renowned solutions provider for the design and production of heat exchangers. Established in 1983, as a manufacturer of finned pack heat exchangers, the company is considered a reference point for its technology and broad array of solutions for air conditioning, refrigeration, heating, and cogeneration.

Romaniuk Heating and Air Conditioning is a locally owned and family-operated business. After 30 successful years, it understands that delivering a high-quality product with superior customer service is the only way to reach goals and continue to grow within this highly competitive industry.

The RSI Company manufactures and services the Typhoon A/C VPAC line, the Nesbitt Multizone and single zone lines, the Correct-Air line and OEM parts.

RunTru is a dependable HVAC brand, but at a price point that makes it the answer to heating and cooling needs. This new product is also designed, engineered, tested, and assembled in America.

Russell's Heating and Cooling, is a family owned and operated company, proudly serving the Hampton Roads area since 1977. They provide furnaces, heat pumps, air conditioner, geothermal HVAC systems and other HVAC equipment.

RYCOR HVAC is a family-owned and operated business, exclusively specialized in single and multizone ductless heat pump installations.

Samm's Heating and Air Conditioning was founded on the five fundamental principles of honesty, professionalism, punctuality, cleanliness, and superior customer service.

At Sanden International (U.S.A.), Inc., our business today is building automotive air conditioning compressors.

Saru is an Indian non ferrous manufacturing group with a long historic background and has successfully maintained an innovative spirit since its founding in 1944.

Sauve Heating & Air Conditioning Ltd. has been providing Kemptville, Prescott, Brockville, Merrickville and surrounding areas with skilled, professional and reliable HVAC installations and services for more than 25 years. They believe in using efficient, high quality equipment and take responsibility for their work.