Since 2000, Oakleaf Commercial Services has been providing high quality, professional, property maintenance and construction services. They also offer a wealth of services including responsive repairs, building construction, modernizations and adaptions, grounds maintenance, fleet services, a PVC-u manufacturing facility and a bespoke joinery workshop.

With the Occupational Safety and Health Act of 1970, Congress created the Occupational Safety and Health Administration (OSHA) to ensure safe and healthful working conditions for workers by setting and enforcing standards and by providing training, outreach, education and assistance. The OSH Act covers most private sector employers and their workers, in addition to some public sector employers and workers in the 50 states and certain territories.

Ofgem is Britain’s independent energy regulator. Their role is to protect consumers now and in the future by working to deliver a greener, fairer energy system. They are a non-ministerial government department and an independent National Regulatory Authority.

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.

Oklahoma Chiller Corporation is a commercial and industrial HVAC company with offices in Tulsa and Oklahoma City. In addition to mechanical and HVAC services, Oklahoma Chiller offers building automation services and equipment rental services.

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.

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.

The Danish-based company was founded in 1988. Pioneering developer and manufacturer of research manikin systems, including thermal manikins, sweating manikins, and breathing manikins - ideal for evaluating the thermal comfort of HVAC systems, clothing & protective equipment, vehicle cabins and indoor environments in general.

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.

Pack HVAC are dedicated to provide top-notch heating, ventilation, and air conditioning (HVAC) solutions to ensure optimal comfort and air quality for homes and businesses. Their skilled team specializes in a full range of services, from routine maintenance and quick repairs to new installations and system upgrades. They understand that each home and business has unique cooling needs, which is why they offer customized solutions.

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.

PCB Technical Solutions specialize in commercial and retail HVAC and Mechanical projects. From their full design and quotation services, through to the installation, project management and maintenance teams, they are able to provide the clients with their full specification.

PCE Instruments are the manufacturer and supplier of test devices, control systems, lab equipment, scales and balances. They have headquarters in Germany and sales offices around the world, including UK and US.

Pentair is a globally renowned provider of energy efficient water treatment systems, filtration products, pumps and water systems for residential, industrial, agriculture and commercial applications. They also offer a wide range of filters, valves, venting systems, heating and cooling solutions, industrial filtration and fire suppression systems.

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.

Pinder Cooling & Heating was born to deliver unrivaled customer service combined with expert engineering knowledge and the highest quality products in air conditioning and cooling systems.

Plumhouse manufactures central heating chemicals, radiator controls, fire valves, pumps, central heating controls, thermostats, motorized valves and more.

Founded in 2012, ADS Plumbing & Heating SW Ltd has developed a reputation of completing gas, plumbing and electrical contracts to the highest standard and to the satisfaction of the client’s specification. We provide this service to the consumer, commercial, industrial and retail sectors.

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.

PM IMPIANTI was founded with the aim of building and installing pre-insulated aluminum, galvanized sheet or stainless steel ducts: experience and professionalism at the customer's service. Over time, they have also specialized in the design, installation and maintenance of split, mini-split and air conditioning systems

Polypipe Building Products is the UK’s manufacturer of plastic piping systems and low-carbon heating solutions for the residential market. They design, develop, and manufacture over 20,000 product lines which are stocked in plumbers and builders’ merchants nationally.

PowerPay is a digital lending platform solutions provider for the home improvement and HVAC industry. Their fully automated technology offers instant approvals on home improvement loans up to $100,000, helping homeowners and their contractors translate expensive home improvement projects into low monthly payments that can be paid over time.

PPVS are one of the renowned complete facilities and HVAC management service providers, established through two generations of family-run professional and responsible management. Their high standards of service across the UK are supported by their team of professionals and strategic local partners built through a decade of growth, staying close to the core family values of the organization.

Formed in 1997. Prefect Controls Limited's goal was to design and make clever, but simple energy controls that fulfilled the commercial needs of the building operator while providing fixed control access for the occupant.

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

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.

Prointer Murcia is an HVAC company specialized in generating comfort, complying with the most demanding standards of quality and humane treatment. They provide installation, repair and maintenance of Cooling, Climatization, Heating and Renewable Energy Systems.

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.