For more than half a century, OJ Electronics have been designing and developing electronic controls for electric underfloor heating and HVAC Controls & Drives. They give access to deep application knowledge and innovative power and help differentiate themselves in the market. They are here to help build their customers’ business.

One Hour Heating & Air Conditioning provides a wide range of HVAC services, including installation, maintenance and repair of air Conditioning Units, Heating, Furnaces, Air Quality, Thermostats, etc and is based out of USA.

Oozzio offers an one-stop-shop for HVAC supplies! Whether for appliance repair, HVAC business, or a DIY enthusiast, Oozzio has everyone covered. Discover top brands, heating, cooling systems, furnaces, mini splits, air conditioners & accessories at their stores. Their user-friendly website and powerful search tools are the most trusted source for residential & commercial HVAC equipment.

OpenTherm is a non-manufacturer-dependent system of communication between modulating HVAC appliances and room thermostats. It consists of a communication protocol and an interface specification. The OpenTherm communication protocol is primarily designed to control modulating heating appliances. The protocol is available to members of the OpenTherm Association only.

OROKON are certified professionals in their field, specializing in the sale and installation of air conditioners, heat pumps, and recuperators. They strive to ensure the comfort and well-being of every customer, so they offer only the highest quality products and services at the best prices. They offer a wide range of air conditioners of various types and models, suitable for both homes and commercial premises.

Ottawa Home Services specializes in installations and repairs of furnaces, air conditioners and water heaters using professional, no-pressure cost estimates based on their actual needs and wants. They offer flexible financing and rental options, as well as on-time, 24/7 emergency service, so users never have to worry about going without one of their essential home systems.

Peck & Weis provides the best full service HVAC, plumbing, and electrical contractor services to customers. Their award-winning team offers the highest quality products and service to ensure customers home or business runs smoothly and safely.

Peterman is a family-owned residential heating, cooling & plumbing company with offices in Indianapolis, Columbus, Muncie, Bloomington, and Lafayette, Indiana. It specializes in heating & cooling repair & installation, along with plumbing services, drains & sewers.

Pinnacle is a BIM service provider in offering customized solutions to Architecture, Engineering & Construction (AEC) firms globally. Pinnacle provides Marketing BIM Presentation, BIM Engineering Services, HVAC, and Revit family.

Polar Engineering loves engineering energy recovery and industrial refrigeration systems. Its team prides itself on taking the time to truly understand the wants, needs, and values of each of our clients. This allows to create client-focused solutions that delicately balance initial costs, operating costs, energy efficiency, and greenhouse gas reductions.

Polaria provides solutions like Dehumidifiers, Air Conditioners, HVAC solutions, etc and is based out of Italy.

Precision Heating & Air Conditioning distributes air conditioners, boilers, ductless systems, evaporator coils, fan coils, gas furnaces, geothermal heat pumps, heat pumps, oil furnaces and more.

From new installation and retrofit projects, to timely maintenance and skilled repair, Precision Tech Home Services ensures safe, efficient, and long-term performance from essential systems and appliances. They handle exterior & interior lighting, electrical upgrades, electric car chargers, and ensure the residential or commercial property meets their growing need for power.

As Temecula Valley’s most dependable and professional HVAC contractor, ProFlo Air Conditioning, Heating & Plumbing strive to keep their reputation in tact. They hold themselves and their work to the highest standard. Their technicians are constantly improving their skill set by frequently completing required training by their heating and air conditioning appliance suppliers.

Propous is one of the largest independent suppliers of gas and oil burner’s spare parts, valves, air heaters, and HVAC products. The success of the company can be attributed to its efficiency, reliability, technical knowledge and an understanding of the customer’s requirements.

Since 2019, ProThermal Heating and Cooling has served as the trusted HVAC contractor in Tulsa, OK, and nearby areas. Each technician on their team maintains certification and professional licenses. They consistently go above and beyond customer expectations, and they stand behind their work.

Quality Heating & Air is an expert in HVAC services. They offer retro install estimate, air conditioning repair, heating and cooling services, or emergency heating and cooling repair. With over 15 years of knowledge and experience in the heating & cooling industry, they have all HVAC service needs covered. They are family-owned and operated HVAC contractor dedicated to providing comprehensive heating and cooling solutions.

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,

RATH has specialized in base materials and finished products for the refractory sector. Individual design and the highest quality of the products - that's what their customers appreciate.

Rawal Devices Inc. is the manufacturer of highly efficient and cost-effective solutions that solve temperature and humidity control problems in industrial, institutional, and commercial building applications.

RCA manufactures and distributes quality, value priced consumer electronics & appliances. The company has been in the distribution business for over 90 years. They offer a broad range of the latest technology in home electronic products including flat-panel and 4K televisions, tablets, smartphones, home appliances, and many other extraordinary products.

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.

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

Refricenter International is a wholesaler/exporter of heating, ventilation and air conditioning parts, supplies and equipment.

Regal Inc. offers a full range of heating and cooling services with their nationally trained technicians for ones home and business. Their product range includes gas furnaces, oil furnaces, boilers, radiant floor heating, heat pumps, geothermal systems, hybrid heat systems, roof-top units, electric heating, zone control, air purification, system balance, freon leak detection, ventilation, humidifiers, to name a few.

Reliable Controls Corporation specializes in the design and manufacture of internet-connected building controls and green BACnet building automation systems. They provide simple, flexible, and sustainable controls which balance the comfort, efficiency, and greenhouse gas reductions of commercial buildings all around the world.

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.

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.

RPC's mission is to provide HVAC industry customers with quality replacement compressors, and parts in a timely manner at a reasonable cost. They also provide integral finned, prime, and star insert tubes for heat exchangers, chillers and condensers; also retubing and tube cleaning tools and equipment.

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.