Founded in 1933, RSES is an education, training and certification association for HVACR professionals. Training includes eLearning courses, mostly NATE-recognized; webinars; hydrocarbon safety; EPA Section 608 prep & more.

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.

RST Thermal is a Manufacturer's Representative, serving New England, for multiple manufacturers whose products offer a systems approach to comfortable heating and cooling. They provide technical and sales support to their wholesale distributor partners and contractors. For homeowners, they provide geographic lists of installing and servicing contractors to help them find the "best fit" for the project to be done.

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.

RuppAir has been dedicated to superior customer service, high quality, and excellent application engineering. As the industry's innovator, we set the standard for commercial and industrial ventilation equipment and service, offering the most competitive pricing and the fastest and most reliable lead times in the industry.

Rushing is an MEP (mechanical, electrical & plumbing) engineering and sustainability consulting firm offering a full spectrum of integrated services which includes energy analysis, lighting design, and commissioning. They provide Mechanical engineering, electrical engineering, plumbing engineering, sustainability consulting and much more.

Ruskin is a manufacturer of innovative air control products, including manual, fire, smoke, combination fire/smoke, and industrial dampers, louvers, air measuring stations, sound attenuators, diffusers, and Energy Recovery Ventilators.

Russell International Controls Inc. are manufacturer representatives for export of equipment and spare parts in the A/C, Refrigeration, and Appliance parts industry.

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.

Ruud provides heating, cooling and water heating products for residential and light commercial use. Their HVAC systems include Air Conditioners, Heat Pumps, Gas Furnaces, Air Handlers, Energy Star, HVAC Systems.

Ryf Heating & Air Conditioning, Inc. provides reliable and affordable HVAC services to hundreds of customers each month, with the goal of making them satisfied customers for life. They supply cooling, indoor air quality and heating solutions.

S & A is the premier supplier of building and remodeling products including plumbing, heating, air conditioning, water systems, water treatment, electrical, and underground products in Berkshire County, Massachusetts.

S&P USA Ventilation Systems, LLC is a producer of air movement products, ventilation systems and fans. They also provide Air Movement Products, Intake and Exhaust Systems, Ventilation Products, Fans and Blowers, Residential Ventilation, Commercial Ventilation, Bathroom Fans, and Inline Duct Fans.

S&S Mechanical Services Inc is the New Lenox, IL air conditioning repair, installation & maintenance professional they need! As trusted heating, cooling, and air quality contractors in heating and air conditioning, we have the tools, equipment, and experience.

Safe House Air Services is the best Air Duct cleaning service in the Houston Metro Area. 10 years of serving all of the local neighbors has allowed them to come up with exactly what all the residents need.

Sager Electronics is a North American distributor of Interconnect, Power and Electromechanical components from leading manufacturers worldwide and a provider of value-add solutions. They provide a wide range of services, including electronics, distribution, power, thermal, interconnect, sensors, switches, relays, filters, motors, value add, electromechanical, circuit breakers, modular power, configurable, battery, and batteries.

Saif International Group supplies a wide range of AC Equipment in the DX & Chilled water range such as Decorative & Ducted split units, Rooftop package units, Fan coil units, Air Cooled & Water cooled chillers, & VRF systems.

Sales ​​Engineers Inc. is a manufacturers' representative selling to the heating, plumbing and specialty refrigeration markets. Their emphasis is on distributor oriented business with a contractor/dealer focus. They represent the following manufacturers: Purolator, Broan-Nutone, Gastite, Nortek Global HVAC, First Company, Lenox, Hilmor, Shurtape, and Thermaflex.

Mfrs. reps. covering six New England states and calling on hydronic, HVAC, burner supply and plumbing/heating wholesale distributors for residential and commercial applications.

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

Samsung HVAC is a distributor of Samsung ductless inverter, VRF heat pump and heat recovery systems. Samsung HVAC is a new kind of HVAC company, one that’s dedicated to creating the most incredible heating and cooling systems in existence.

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

Sandia Group, Inc. offers premier sales representation to all sectors of the HVAC and Refrigeration markets throughout the state of New Mexico.

Sandium is passionate about creating the perfect indoor climate for their home. As a renowned HVAC company in San Jose, they are dedicated to creating comfortable living spaces that can truly call home. As a full-service HVAC company, the offer design, engineering, and installation services for heating & air conditioning systems, zone systems, high-efficiency water heaters, Home Performance contracting, energy auditing, and ventilation services.

At Sanford Temperature Control, they represent unmatched customer service in Southern New Hampshire. Whether calling them for heating, cooling, plumbing, or electrical services, they’ll always speak with a friendly, knowledgeable member of their team. Sanford Temperature Control stands out with a commitment to excellence that includes their Lifetime Workmanship Guarantee, ensuring clients never have to worry about getting the job done right.

Sanhua is a manufacturer of HVAC&R controls and components, with a global presence and over 30 years of experience. Working together with the largest companies in the automotive, appliance, and HVAC&R sectors,

SANI-VAC Service provides high-quality indoor air cleaning services, including HVAC units, air ducts, and kitchen exhaust cleaning for commercial, industrial, and institutional organizations. It offer much heating and cooling cleaning services including air duct cleaning, ventilation cleaning, coil cleaning, HVAC cleaning, commercial kitchen exhaust degreasing, cooling tower cleaning, and ductwork inspections.

Santa Fe Indoor Air Quality Solutions is located in Madison, Wisconsin, and is part of Therma-Stor. Therma-Stor was established in 1977 to apply advanced heat transfer technologies to residential and commercial markets. In addition to the Santa Fe brands, Therma-Stor® also manufactures Quest™ commercial dehumidifiers and the Phoenix™ line of restoration equipment.

The Mission of SASCO is to always be the best at prime cost and the commercial electrical, data and systems contractor and trusted partner to the construction industry leaders.

Sauer is the full service Mechanical Contracting Company providing HVAC, Industrial Piping, Plumbing, Instrumentation, and Maintenance Services. Sauer Group is a division of Sauer Holdings Inc., headquartered in Pittsburgh, Pennsylvania.