REHVA is The Federation of European Heating, Ventilation and Air Conditioning associations founded in 1963. REHVA's mission is to develop and disseminate economical, energy efficient, safe and healthy technology for mechanical services of building; to serve its members and the field of building engineering (heating, ventilation and air conditioning) by facilitating knowledge exchange.

Reliable Architectural Products is a pioneer in louvers, hurricane impact louvers for PTAC applications, penthouses, screens, brick and block vents, dampers and sunshades.

Reliable Heating & Air has been serving all of Metro Atlanta's communities offering heating, cooling, plumbing, and electrical services, indoor air quality, duct cleaning, insulation, and home and building performance for both residential and commercial customers.

Since 1961, Reliable Louvers has been supplying architectural and mechanical louvers for the construction and hospitality industries. With a state-of-the-art paint and anodizing finish lines, in-house full-service sheet metal shop and a full-time engineering staff, they have the capabilities to meet any needs.

Reliance Home Comfort provides a full-menu of HVAC services in Maple Ridge, B.C. for homeowners and businesses alike. Whether one needs a furnace repair in Vancouver or a new water heater in Maple Ridge, Reliance Home Comfort has an installation or repair service for home. They also offer 24/7 emergency plumbing and have new UV air purification systems available.

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.

Renroc Group was established in 1991 to revolutionize and optimize Australian Industry. The company began by supplying pumps and fluid handling systems to many industries. The company is now a diversified specialty equipment and services supplier including pumps and polymeric coatings. Serving, Oil & Gas, Power, Renewables, Water & Waste Water, Food & Beverage, Chemical, and HVAC markets.

Rensair is a specialist in air purification, protecting, and enhancing lives through clean air. Its patented technology combines H13 HEPA filtration with germicidal UVC light, was developed to meet the strict standards of Scandinavian hospitals, and is independently validated by scientific research laboratories. Rensair air purification units meet all the standards recommended by the US EPA and UK SAGE committee in their respective reports.

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.

Resource Data Managemen offers a range of over 500 hardware and software products for heating, ventilation, air conditioning, refrigeration, building and energy control applications

Revac Systems offers World Class Commercial Kitchen Exhausts that keep your Kitchen environment conducive to human comfort despite changes in internal heat loads from burners, ovens, and Electrical fryers. Their projects cover the supply of all kinds of Kitchen Ventilation equipment like Hoods, Ducting, Blowers, Electrostatic Precipitators, Makeup Air Units, Grease Filters, etc.

Reviveaire LLC is a globally renowned manufacturer and provider of advanced air disinfection systems to safeguard indoor environments against airborne pathogens, focusing firmly on innovation and cutting-edge technology.

When its cold outside, Reznor brings the heat. For more than 90 years, they’ve delivered reliable, high-efficiency unit heaters to their customers. Their unit heaters feature attractive, high-gloss exteriors, components engineered for quality, and a complete range of options to fit any application. And, many of their high-efficiency unit heaters qualify for rebates or subsidies from local governments or utilities.

Rheem is a manufacturer of heating, cooling, water heating, pool/spa heating, and commercial refrigeration products. The company has an international presence in 14 countries. Their premium brands include Rheem, Raypak, Ruud, Eemax, Richmond, and Splendid, as well as commercial refrigeration brands Russell, Witt, ColdZone, and Kramer, which are part of the company’s Heat Transfer Products Group (HTPG) division.

Rhodes and Stafford is a company that serves as a representative of companies like Diversitech, Southwark Metals, Berry Global, J. P. Lamborn, Uni-Weld, Hardcast, Glasfloss Industries, Honeywell Genesis Cable, Truaire, Soler&Palau, Fujitsu, JB Ind., Builder's Best, Pro1, Trion.

Rhoss is a company specialized in the design and production of air conditioning and air handling products and systems. For more than 50 years, Rhoss has been a guarantee for innovation, quality and top level service.

Riello is a pioneer in products and services for heating, air-conditioning and energy efficiency. Riello is a part of Carrier, a global provider of innovative HVAC, refrigeration, fire, security and building automation technologies.

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.

Ripple Energy makes clean energy ownership accessible and affordable for everyone, everywhere. Ripple will enable energy consumers around the world to part own large scale wind farms and solar parks and have the clean, low cost electricity they produce supplied to their homes. Their utility partners supply the electricity from the wind farms and solar parks to their owners’ homes via the grid.

Ritchie Engineering Inc. offers a complete line of HVAC&R service and installation tools including recovery, vacuum pumps, hoses, test and charging manifolds, gauges, leak detection and electronic testing equipment, and service tools.

Rite Way Heating, Cooling & Plumbing is a local plumber and HVAC company, serving home and business owners across Tucson, Arizona, USA. They offer a wide range of heating, cooling, and plumbing products, including air conditioners, furnaces, heat pumps, hot water tanks, and water conditioning systems.

Rittal, headquartered in Herborn, Hesse, Germany, is a globally renowned provider of solutions for industrial enclosures, power distribution, climate control and IT infrastructure, as well as software and services. Its broad product range includes infrastructure solutions for modular and energy-efficient data centers with innovative concepts for the security of physical data and systems.

At River Valley Construction, excellence and integrity are at the core of everything they do. User satisfaction, comfort, and peace of mind are their top priorities.

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.

RLS Logistics is a third-generation family-owned third-party logistics provider (3PL) specializing within the cold chain. The company is a frozen & refrigerated temperature-controlled logistics provider offering LTL and TL transportation, cold storage warehousing, and e-commerce fulfillment services.

At RM Additions, they are passionate about transforming ordinary spaces into extraordinary living spaces that enrich lifestyles and adds value to homes. With their years of experience in the building industry, project management, and finishing, they are dedicated to bringing their renovation dreams to life.