The mission of the Department of Energy is to ensure America's security and prosperity by addressing its energy, environmental, and nuclear challenges through transformative science and technology solutions.

UEi Test Instruments designs, manufactures, market, service and support portable test equipment that every day enables thousands of professionals to do their jobs around the world. They provide Multi, digital, resistance, temperature, humidity voltage testers, leak detectors, combustion gas, and carbon monoxide analyzers.

UEMSI/HTV provides color push camera systems to inspect ductwork, pipelines, heat exchangers, etc. Also high pressure sewer hose, fittings, and swage equipment.

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.

UK Cool and Heat is the home of dedicated design, installation and maintenance teams, and users can count on them to cater to their needs if they’re looking for a prompt, professional and unbeatable service.

UK Radiators, they know that buying a radiator and making sure it’s right for you can feel like an overwhelming experience. With over 30 years of collective experience in the heating sector and a passion for sustainability, they offer genuine, impartial advice on the right heating technology.

UK Refrigeration & Air Conditioning manufactures a range of refrigeration and air conditioning systems for commercial and industrial purposes. Users can also rely on them for domestic air source heat pumps, cold store construction and maintenance and repairs throughout the whole of the UK.

UKHeatPumps are a specialist supplier & installer of sustainable climate solutions for residential and commercial projects. UKHeatPumps provide full systems design, installation, aftercare, and expert advice on all types of renewable projects.

Around the globe, UL works to help customers, purchasers and policymakers navigate market risk and complexity. UL builds trust in the safety, security and sustainability of products, organizations and supply chains – enabling smarter choices and better lives. Their robust suite of offerings includes testing, inspection, auditing, certification, marketing claim verification, training, advisory services and software solutions.

Ultra Air was founded in 1999 through the enterprise and foresight of its principal, Anthony Licastro whose industry knowledge and experience saw him recognize an opportunity to improve upon the work practices. It is an Australian company providing residential and commercial air conditioning sales, installations, yearly services and corrective maintenance to the building industry and private market.

At Ultra Air HVAC, they pride themselves on providing reliable, high-quality heating, cooling, and gas appliance services to homes across Ottawa. With years of experience in the HVAC industry, their team is dedicated to keeping homes comfortable year-round. From furnace and A/C installations to emergency repairs, they deliver professional service with a 100% satisfaction guarantee.

Founded and headquartered in New York, UltraFlex Power Technologies has provided industrial induction heating equipment and customer-focused solutions worldwide for over 30 years. UltraFlex has sales and support offices in the USA (New York and California), Europe (Bulgaria), India, and South America, with additional support from our global distributors and partners.

Uncle Mike’s Home Service is the go-to AC repair and Installation service provider in Lincroft, New Jersey, USA. They understand the importance of maintaining a comfortable and well-functioning home environment. With years of professional expertise, their team is committed to delivering top-notch HVAC solutions tailor-made to suit specific needs.

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.

The Unico System is a small-duct, high-velocity central heating and air conditioning system. Ideal for custom & new home construction, historic preservation, older home retro-fit, and commercial applications, The Unico System takes less than one-third the space of a traditional HVAC system.

UniColorado is a locally-owned HVAC contractor that has served the Denver community for over 10 years. They are a trusted source for heating, air conditioning and electrification needs in the Denver, Centennial & surrounding areas. Their experienced professionals specialize in heat pump installation and furnace installation, ensuring the living space remains warm during the chilly winter season.

Hays Cleveland Combustion Control Products is a division of UniControl Inc. Industries Served by Hays Cleveland Combustion Control Products include: Commercial and Industrial Markets: fire-tube & water-tube boiler applications. Federal & State Institutions: control and instrumentation systems and services.

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.

Unikelvin, headquartered in Bengaluru, India, is a leading provider of turnkey HVAC solutions for Commercial, Industrial and residential spaces. They cater to commercial office spaces, residential apartments, industrial air-conditioning and ventilation for Food, Pharma, Biotech & Healthcare Facilities.

Since 1979, Unilux has designed, refined and perfected its watertube and firetube boilers by building for customers who think not in terms of projects, but in terms of decades. Facility owners and energy service companies whose bottom line depends on predictable lifetime value. Architects and contractors whose future depends on repeat business. And engineers who know a good thing when they see it.

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 AC Supply is one of the premier distributors of HVAC/R products in Houston, Texas, USA. They deal with all Air Conditioning, Refrigeration,Heating and Ventilation needs and represent all major manufacturers across the country.

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 State Solutions is a licensed home improvement contractor operating in Florida, specializing in energy-saving solutions and comprehensive home improvement programs. As a seasoned contractor in the state, they provide a range of services, including AC installation and repair, air duct replacement, attic insulation, roofing services, and energy-efficient window installations or replacements.

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

Universal Supply Group, Inc. is a full-service technical supply house and distributor of heating, ventilating and air conditioning (HVAC) equipment, parts and accessories.