Olimpia Splendid is an Italian company globally known for its design, production and marketing of products for Air Conditioning, Heating, and Air Treatment solutions.

Omdia unifies and harnesses the depth and breadth of expertise from Informa Tech’s legacy research brands: Ovum, IHS Markit Technology, Tractica and Heavy Reading. They offer unparalleled, world-class research and consultancy to navigate the now and create the future.

OMNIA Partners, Public Sector is the cooperative purchasing organization that is driving excellence in public sector procurement for K–12 schools and districts, state and local governments, colleges and universities and nonprofits. OMNIA Partners offers the most robust portfolio of high-quality cooperative contracts in the public procurement space.

ONDA S.p.A. is manufacturing company of advanced heat exchangers for refrigeration, heating and air conditioning equipment.

One Hour Heating & Air Conditioning® of Lee's Summit is the most trusted source of HVAC services in the Lee’s Summit area. Their team of Lee's Summit heating and cooling technicians are highly trained and licensed, so that they can provide the best Lee’s Summit HVAC repairs, installation, and maintenance possible.

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.

Family owned by Dave and Kathy Ignasiak, Orchard Hill Mechanical offers 25+ years of experience as a full featured residential, commercial, agricultural, and industrial mechanical contractor.

Ouellet is the manufacturer of heating and ventilation equipment for institutional, commercial, industrial and residential applications; electric heating equipment to include unit heaters, ceiling heaters, cabinet heaters, baseboard, bath ventilation, Heating Cable, Self-Regulating Cable etc.

Pacifica Home Services Ltd. provide a wide range of HVAC and home improvement services in the region of Houghton Le Spring, in Sunderland, in the United Kingdom.

Packard is a master distributor of over thirty brands of HVACR solutions and is dedicated to providing the best service, selection and satisfaction to wholesalers.

When it comes to heating & cooling for home or office, Palatine Unique Indoor Comfort provides expert HVAC installation & repair services in Palatine & nearby areas of the US state of Illinois.

Panasonic is the premier manufacturer of powerful, energy-efficient ventilation fans and indoor air quality solutions. We produce the highest quality, code compliant solutions available in the market today.

PCI Industries Inc. dba Pottorff manages two distinct divisions. One is a renowned manufacturer of damper, louver, silencer, and architectural sun control products. These products are sold through exclusive representatives across North America under the brands above. And the other division is Air Product Sales, a representative and primary supplier of commercial HVAC products servicing Southern CalifornAir control a

Peerless Blowers is a vertically integrated manufacturer of fans and blowers used in commercial and industrial applications. They produce a wide variety of ventilation/air moving equipment that offers solid performance, smooth operation and excellent value.

Pelonis Technologies, Inc. innovator of air movement technologies, cooling fans and blowers, induction motors, and specialty heating products for commercial and industrial use. They provide AC and DC axial fans, motors, PTC heaters, motorized impellers, centrifugal fans, EC fans, blowers, fan accessories, fan trays, automotive fans.

Founded in 1928, PennBarry has evolved with the HVAC industry over the years to provide full service ventilation products for commercial and light industrial applications worldwide. PennBarry is a global manufacturer of full service ventilation products for commercial and light industrial applications, including energy recovery units, make-up air systems, kitchen hoods and SupremeFan supply and exhaust products.

Perfect Temp Heating and Cooling is one of the best HVAC contractors in Minneapolis, MN, USA. At Perfect Temp, their commitment is to provide customers with the best possible service experience goes beyond just honoring a warranty or showing up when called upon.

Petra produces a wide variety of HVAC equipment that meets a diversity of application requirements catering to the worldwide market. The company's product portfolio includes air handlers, chillers. dry cooler units, fans and split units, among others.

PHNIX NORTH AMERICA is an international enterprise committed to advancing affordable energy-efficient heat pump technology in order to save energy and protect the environment.

Pilar Services, Inc. is a full-service mechanical contractor that specializes in installation, new construction, sales, service, and maintenance contracts for all sizes and types of air conditioning and refrigeration equipment.

Plasma Air products are mounted in the central air conditioning system of any building. As air passes over the products, millions of positively and negatively charged ions are formed – just like in nature. These bipolar ions disperse into the occupied space through the duct system, proactively attacking airborne contaminants where they cause the most problems for occupants.

Plastec Ventilation, Inc. offers a comprehensive line of high quality corrosion resistant polypropylene fans and blowers dedicated to the needs of the industry.

Plumbing Medic is ready to help with any type of heating and air conditioning job in Gilbert. They’re also able to offer comprehensive plumbing services throughout Maricopa County.

Pole Star Products Limited is a supplier of electric motors, fan, blowers, etc. They cater to the heating, ventilation, refrigeration, air conditioning and vending machine markets.

Porex is a globally-renowned manufacture of porous wicking, filteration and diffusion solutions. This global HVAC solutions company provides a wide range of filteration, venting, diffusion, absorption and wicking solutions for a wide range of applications. POREX porous plastic filter and separation media materials have long been used in the most demanding filtration and separation applications from water and industrial filtration to bio-science.

Precise Air is one of Australia’s national providers of heating, ventilation and air conditioning (HVAC), fire and bundled MFEP (mechanical fire electrical and plumbing) maintenance and building and essential services.

Prévoté provides globally renowned transport and logistics services, including transport, vehicle rental, logistics and courier solution in Paris, France.

Prihoda UK provides bespoke fabric ducting for commercial or industrial applications at a competitive price. They are renowned for their specialized textile ventilation systems, providing fabric ducting and diffusers and air socks for ventilation projects all over the UK and Ireland.

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.

Established in 1969, Purafil is a globally-renowned provider of molecular air filtration and indoor air quality (IAQ) solutions. They also provide a wide range of air filtration, air conditioning, odor control, corrosion control, toxic gas filtration, monitoring and chemical filtration solutions.