PART provides IAQ specialty cleaning services to commercial and industrial clients throughout the Midwest and has conducted numerous large projects in the Eastern United States. PART’s management team and project supervisors are certified members of the National Air Duct Cleaners Association (NADCA).

Prolojik is an innovative business that enables specifiers, installers and users of lighting controls to harness its extensive network for other purposes.

Proximity Systems, Inc. is a globally renowned provider of innovative health care furniture and HVAC technology solutions. From hospital examination rooms to training centers and airports, the company's diverse line of wall-mounted workstations, UVC disinfection devices, medicine cabinets, retail kiosks, and modular units enable caregivers, customers, and technology to interact in a safe, seamless, and effective manner.

Pueblo has grown to one of the largest, most multifaceted mechanical contractors in Arizona. It performs a broad offering of HVAC, Plumbing, and Controls installation, maintenance, and repair services for governmental, industrial, commercial, and healthcare facilities throughout Arizona.

Pump Systems LLC is a distributor of Water and Wastewater Equipment providing sales, service, and repair throughout the State of Ohio. Headquartered in Medina, OH, they focus on providing the best solutions for the municipal, commercial, and industrial markets.

PureAC is the first automated disinfecting device for window & wall-mounted air conditioning and heating systems that instantly kills and inhibits mold, mildew, bacteria, and germs. It's the perfect solution for in-between professional servicing.

Qolsys Inc is a pioneer residential and commercial security and smart-home manufacturer. They provide smart thermostat, video monitoring, energy management and home automation.

Quality Comfort Home Services (formerly Quality Comfort Heating & Cooling) based in Cincinnati, OH offers a diverse range of HVAC services to residential and light commercial clients. Their expert HVAC services include air conditioner and furnace repair, heating and cooling maintenance, new furnace, heat pump or AC installations, ductless mini split ACs and more.

Quantech has a proven track record of delivering high-performance chillers with speed, efficiency, and reliability in mind. They are led by the customers and work tirelessly to provide optimized HVAC solutions that address the facility needs. They provide smaller, lighter, quieter chillers resulting in lower installation costs.

Quest Controls Inc. is a leading designer and manufacturer of intelligent automation systems (hardware and software) for small, medium and large buildings intended to deliver major energy savings. Quest provides telecommunications with remote monitoring for power and battery capacity, control of main door access, intelligent lead/lag, control and monitoring of HVAC systems, gas monitoring, telephony equipment monitoring, environmental monitoring,

QuietCool - QC Manufacturing, Inc is a manufacturer of the patented QuietCool whole house ventilation system - a quiet and energy efficient companion appliance - or alternative to - expensive air conditioning usage.

Quilt offers AI-driven efficiency and room-by-room control, all while leaving fossil fuels behind.

R. Williamson & Associates has been providing industry with clean, comfortable air. They provide an interactive experience, having engineers and technical sales representatives on staff with more than 135 years of air systems design experience.

Ranger Pumps is a privately held corporation that was founded in 1989 in Memphis, Tennessee. Ranger has become a domestic and international pump supplier. They pride themselves on manufacturing pumps in the USA from parts made in the USA.

Ronald Chambless has owned RC's A/C & Heating since 1994 when he began his company from his home functioning from the back of the little Mazda pickup.

Reedy Industries is a rapidly growing commercial HVAC and building controls company that is transforming the industry. Founded in 1930, we’ve grown by providing exceptional service and unprecedented opportunities for HVAC company owners, their employees, and customers.

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.

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.

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.

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.

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.

Over 30+ years of progressive experience in Mechanical Engineering, HVACR Project Management, Energy Management, Facilities Management, Project Management, Financial Management, HVACR Training and Development, Research, and Management Consulting Models.

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.

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.

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.

RoadRunner Wraps offers professional commercial vehicle wraps that drive brand visibility. They also specialize in commercial wall wraps, commercial truck wraps, and fleet vehicle wraps to help enhance the brand's presence. They are very proud of their 20-year history of helping companies of all sizes in the Washington DC – Baltimore area and beyond.

Robert Madden Industries is a heating and air conditioning wholesale distributor offering Carrier, Bryant, Payne, and Day & Night equipment and parts, as well as a generous line of supplies.

Rogers’ Advanced Electronics Solutions (AES) business delivers advanced material solutions to solve design issues such as signal integrity, Radio Frequency (RF) signal management, power efficiency, power distribution and thermal management, to deliver improved device and system reliability. These solutions include high-frequency laminates, bondplys, prepregs, cooling solutions, ceramic substrates and busbars.

Rubber World Industry LLC was established in 1993 to manufacture a comprehensive and versatile range of technically advanced Rubber NBR Insulation products. Part of the Shaikhani Group of Companies, RWI is a pioneer UAE national enterprise that has become an industry leader in the entire Gulf and South-East Asia region.

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.