Twin City Fan Companies, Ltd. is a group of fan companies that manufacture and sell a complete range of centrifugal and axial propeller fans, power roof ventilators and related equipment. Twin city provides air handling units, air supply and filter house, HVAC systems, rooftop exhaust and many more.

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

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.

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 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 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.

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.

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.

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.

In more than forty-five years since their founding in an old onion set warehouse in South Holland, Van Drunen Heating and Air Conditioning’s goal has remained the same, taking care of people.

VATANUCOOL is an organization having more than 16 years of experience in Design Engineering, Execution & Service of HVAC and Industrial Process Cooling Solutions and have handled more than 400 Clients from both the public and private sectors.

The services of Vaughn Industries have grown into the industrial/commercial sectors, including electrical, mechanical (HVAC and Pipefitting), plumbing, and high voltage substation, high voltage transmission and distribution construction. They provide High Voltage Transmission and Distribution, High Voltage Sub Station, Commercial/Industrial Mechanical/HVAC, Commercial/Industrial Electrical, Renewable Energies, and Preventative Maintenance.

VECAMCO has specialized in the manufacturing and trading of accessories for air conditioning units, heating systems, ventilation components, and air treatment systems, becoming, in a short time, one of the pioneer companies in Italy and abroad.

Velavi Heating & Cooling provides A/C installation, A/C repair, heater repair, and commercial services in Norwalk, CA, and surrounding areas within a 30-mile radius. Velavi HVAC for professionals heating and air conditioning near the Los Angeles service makes sure the air purifying filters are replaced at a regular interval of three months.

Ventilation Direct is the source for all the HVAC needs. Ventilation Direct is committed to customer service and on-time, accurate delivery of superior ventilation products. Their line includes UL and ANSI-listed commercial and industrial exhaust fans, heaters, make-up air units, motors and more all with a two year warranty.

Ventilation Power Cleaning is one of the largest industrial vacuum cleaning company's in the state of Washington. VPC offers a wide range of specialized services to meet the customers’ cleaning needs. When it comes to industrial cleaning and related services, choose the company with over 45 years of experience in the industry, knowledgeable employees, and state-of-the-art equipment.

Verdant is one of the major HVAC manufacturers and suppliers in the United Arab Emirates (UAE). They provide a wide range of products and with their flexible manufacturing system, they also offer customization as per their customers requirements at very competitive prices. Verdant Industries aims to be the most reliable and innovative company in the field of HVAC and building equipment by providing the best solution and services.

Verizon Networkfleet offers a full suite of industry-defining solutions and services that put innovation, automation and connected data to work for customers and help them be safer, more efficient and more productive. With more than 3,500 dedicated employees in 15 countries, they deliver leading mobile technology platforms and solutions.

In 1984, Vertical Market Software (VMS) opened its doors to provide an integrated accounting and job costing system to general contractors throughout the country. VMS provides service, construction, and accounting software to software to contractors nationwide. They also offer a complete enterprise solution for efficient business management and optimization.

Founded in 1975, Vibration Isolation has over 30 years experience in the design and manufacture of reliable, quality products engineered for cost-effective control of vibration, shock and noise. Their products include a complete line of open and housed spring mountings, spring and neoprene hangers, and neoprene mounts and pads. Structural bases and rails, inertia base pouring forms, and seismic mounts and restraints.

Vicon is a globally renowned company in the field of plasma cutting machines, coil lines, and HVAC ductwork machinery. Every Vicon plasma cutting table and machine shipped by Plasma Automation and Vicon Machinery is backed by professionals with over 40 years in the machine tool industry. They also manufacture coil line systems, roll forming equipment, seam closers, duct brakes, and other HVAC machinery.

The Viessmann Group is a globally renowned company that manufactures heating, cooling and climate control technology and solutions. They provide heating systems, industrial systems and refrigeration systems for commercial and industrial applications.