uHoo is a Hong Kong-based renowned provider of advanced indoor air quality sensor solutions. They provide software solutions and indoor air quality sensors aimed at measuring, analyzing and interpreting indoor air quality data. The company's ‘uHoo Virus Index’ is a patent-pending technology that analyzes air quality data and provides an assessment on the risk of viruses surviving in homes or workplaces.

ULVAC makes the HELiOT line of portable leak detectors, automatic leak test systems, helium charging and recovery systems and industrial vacuum pumping stations for manufacturing.

Underfloor heating for commercial buildings not only provides a more energy-efficient and sustainable heating system, but also helps to create a feeling of well being. Underfloor heating can support that well being, helping to promote responsive, productive and healthy minds.

Unicel Autotech is a major provider of reliable and cost-effective generator rentals, sales, and installation services in India. They cater to a wide range of industries, events, and projects with short-term or long-term power needs.

UNICO Inc. is the maker of The Unico System which is a small-duct, high-velocity central heating and air conditioning system.

Uniflair are a supplier of technologically advanced cooling solutions for critical environments with a policy of continual innovation. Uniflair invests over 5% of turnover (not profit) into research and development of both new cooling technologies and upgrades to existing products.

Unigulf Development LLC and Air Conditioning Industries LLC are a part of the United Arab Emirates based Unigulf Group. The group has grown to be one of the pioneer player in the HVAC industry. Unigulf Development is known for its service and trust in the HVAC-R Sector in the MEP Industry.

Unipipe Solutions is the master importer for North America of the premier aluminum piping system designed and manufactured by EQO Fluids. Faster to assemble and far less expensive than copper and a quick, light-weight replacement for black iron pipe (that rusts from the inside and damages equipment and processes downstream), Unipipe offers super-fast installation and requires no special tools, crimping, or grooving.

United CoolAir Corporation manufactures 1 to 90 ton "All-Indoor" Modular HVAC Solution systems for Commercial and Industrial Cooling as well as 100% Outside Air applications.

United Safety and Survivability Corporation, formerly known as USSC Group, is committed to delivering the most innovative and reliable safety and survivability solutions to protect life and property. They provide active air purification to increase air quality. They also provide PPE safety systems to doctors, nurses, and front-line responders.

United Technologies Corporation provides technology products and services to building systems and aerospace industries worldwide. The company's UTC Climate, Controls & Security segment offers electronic security products, including intruder alarms, access control systems, and video surveillance systems; and fire safety products, as well as systems integration, video surveillance, installation, maintenance, and inspection services.

Unity Cooling Systems is a commercial refrigeration company in Houston , has been providing quality cooling systems to businesses for over 20 years. They specialize in custom/build walk-in coolers and freezers, meat cases, milk cases, commercial air conditioning, and air conditioning repair.

Universal Air Supply is a wholesale and retail manufacturer of air-conditioning and refrigeration equipment, parts, and supplies.

Universal Electronics Inc. is the pioneer in universal control and sensing technologies for the smart home. Its broad portfolio of over 300 pending and current patents includes the world’s most complete database to connect and control thousands of entertainment viewing devices.

Universal Fan & Blower Ltd. are manufacturers of centrifugal and axial FRP composite corrosion resistant industrial and commercial fans.

Universal Piping Industries (UPI) is a pioneer in the design, fabrication and installation of industrial piping & plumbing systems and HVAC systems for industrial/commercial facilities.

Uniweld Products, Inc. is a U.S. manufacturing company that deals with gas, soldering, brazing, heating and welding equipment and accessories, test equipment, pressure gauges, alloys, manifolds and charging equipment, leak detectors, vacuum pumps, tubing tools.

Uplight empowers their customers to take control over their energy usage and bills with personalized and cost-effective Behavioral Energy Efficiency (BEE).

URI is a a distributor of air conditioning and refrigeration compressors. They remanufacturer open and semi-hermetic types 5-125hp. URI has been serving the HVAC and refrigeration services industry for more than forty years.

US Fire Pump is a collective of over 200 years of experience in design, manufacturing, marketing and purchasing. Protecting the lives of the public and firefighters while limiting the structural damage caused in large scale fires is the primary mission at US Fire Pump.

USA Industries is an ISO 9001:2015 manufacturer and supplier of piping isolation and testing products, tube plugs, orifice plates, and tools for heat exchangers for rental or sale.

Utica Boilers has been a trusted supplier of gas and oil-fired boilers for residential and commercial buildings since 1928. Contractors and homeowners alike choose Utica Boilers as their preferred supplier because of our high efficiencies, easy maintenance and installation features, and limited lifetime warranties.

UV Angel is a provider in pathogen control technology that neutralize harmful pathogens using a combination of hardware and software. UV Angel’s ultraviolet light-based technology platform is used to treat surfaces and the air. UV Angel’s technology is supplemented by a data analytics platform.

UV Diffusers act as a shield removing pathogens from the air coming from the ventilation system before it enters the room. The disinfected air is then mixed with the air present in the room to reduce the concentration of contaminants. UV Diffusers improve ventilation efficiency while preventing the spread of airborne diseases.

UV Resources are a globally renowned company in UV-C disinfection and HVAC efficiency. They help disinfect airstreams, mitigate disease transmission, and kill microbial contaminants that impede HVAC efficiency. Company founders pioneered the application of UV-C energy in HVAC equipment nearly 25 years ago. Currently, they supply market-renowned germicidal UV solutions to facility managers and building engineers around the world.

Vairtech is committed to developing a variety of new models to meet the needs of the market and high quality. It is specialized in the production of various aluminum alloy air vents, aluminum foil expansion pipes, inspection ports, aluminum foil tapes, purification filters, air duct regulating valves.

Vaisala is a pionreer in industrial measurement. The company develops, manufactures and markets state-of-the-art relative humidity, dew point, carbon dioxide, moisture in oil and barometric pressure and wind instruments for industrial processes, HVAC, IAQ, R&D and OEM applications.

VAK offers a complete design, manufacture, installation, and commissioning service.

Valleytech Ltd is a family run company established in 2005. We provide all aspects of heating services including boiler installation, maintenance & repair.

Valtec-Umisa SA is a company in the metallurgical sector, with a long tradition and experience in the field of manufacturing and installing Pressure Equipment, mainly steam generators.