Western Allied Mechanical has been a pioneer in the construction industry for 50+ years as a mechanical contractor that specializes in design/build for bio-tech, high tech; retrofit and replacement; LEED and Green projects; and HVAC service and maintenance.

Western has been a pioneer in use of Carbon Di-oxide as a refrigerant on its equipment and on development of Solar powered coolers. Western is also one of the first companies to start manufacturing dispensers in India and few other stainless steel equipment for the quick service restaurant industry

Western Thermotechnics Air Conditioning Services have been providing quality heating and cooling services to commercial, industrial, and domestic clients throughout Melbourne’s South-eastern suburbs, Bayside and the Mornington Peninsula where their base of operations is located.

Wiegmann Associates is a St. Louis-based mechanical contractor and a national pioneer in design/build HVAC projects. Since 1995, Wiegmann Associates has engineered and installed innovative, energy-saving, and cost-efficient HVAC solutions, refrigeration systems, and automation controls for clients in a wide range of industries, including senior living, food and beverage distribution, warehouse, healthcare, commercial and industrial.

WIKA is a manufacturer and supplier of industrial measurement technology including measuring instruments for HVAC applications for pressure, temperature, humidity, and air quality.

Winsupply Inc. is a supplier of residential and commercial construction and industrial supplies and equipment headquartered in Dayton, Ohio. They conduct business-to-business wholesale distribution of supplies and equipment in plumbing and heating; hydronics; pipe, valves and fittings; HVAC and refrigeration;

WM Aircon is the HVAC supplier in Oxfordshire and the Thames Valley, and is dedicated to the design, installation & service of the latest technology. They specialize in Installation, Service and Maintenance of Air Conditioning and Refrigeration Systems and use the best manufacturers in the industry.

At Woodward Heating, their highly skilled technicians are committed to providing users with the highest quality of care possible. This includes discussing with users all their available options and helping them come to a well-informed decision.

WorkHero is the AI-powered back office for small HVAC contractors, combining industry experts with custom AI agents to handle invoicing, permits, rebates, equipment warranties, pricebook creation, and much more.

Wrightsoft Corp. offer easy to use, drag-and-drop HVAC design and sales software that combines both residential and commercial loads, CAD-quality ducts, proposals and in-home sales tools.

Xandar Kardian is focused on providing innovative solutions for smart buildings, security, and healthcare utilizing digital radar signal processing algorithm technology.

Xtralis provides advanced fire detection for refrigerated storage. Xtralis is the global provider of powerful solutions for the very early & reliable detection of smoke, fire, and gas threats. They protect highly-valued and irreplaceable assets and infrastructure belonging to the world’s top governments and businesses.

Yandle-Witherspoon Supply, Inc. strives to offer impeccable customer service while developing long lasting relationships through business partnerships formed with the HVAC contractor. Providing quality product, a vast array of value added services, education, training, friendly employees and competitive prices allows Yandle-Witherspoon Supply, Inc. to be a major force in the HVAC industry in North and South Carolina.

Yanmar Holdings's brand statement is “A Sustainable Future” which encapsulates the company's goal of realizing a sustainable society where people coexist with nature. Since the company was founded in 1912, they have spent over a century helping to resolve issues around the globe and bring about a brighter tomorrow.

Yilida always strives for constant growth and improvement to provide high quality commercial & industrial fans and excellent services to satisfy all needs for air conditioning and building ventilation applications. At Yilida the have made a firm commitment to innovation and continually developing intelligent high-efficiency fan motors.

Yorkool Private Ltd is a specialist that provides advanced engineering ideas and transforming it into reality. Their key competencies are in turnkey projects, central cooling plant system retrofitting and maintenance services. They focus on crafting energy-efficient based solutions, creating cost savings and value for the customers.

With state of the art manufacturing facilities grounded in the indispensable conditions of research and innovation, Zeco Aircon develops and designs the machines with cutting edge features and vigorous capacities to deliver, the best quality of air all can breathe. They provide AHU, FCUs, Air Wahers, Air Scrubbers, Metallic Pre Factory Fabricated Ducting/ Pre Insulated Ducting, Pre Insulated Pipes, Cooling Coils, and Chemical Filtration.

Zhejiang MAIDI Refrigeration Technology Co. Ltd, lt is a flourishing High-Techenterprise which was founded in 2002. They specialize in developing and manufacturing the hermetical and semi-hermetic compressors & units, and all kinds of refrigeration parts such as the Filter Drier, Liquid Accumulator and Oil Separator.

Zhejiang Huazheng New Materials Co., LTD. (hereinafter referred to as "Huazheng New Materials"), founded in 2003, is a holding member of Huali Group. It is one of the earliest enterprises engaged in the research and development and production of epoxy-clad copper plate in China, and has won the title of "Excellent National Brand Enterprise in China's printed circuit Industry" for five consecutive years.

Easy to install and operate zoning, VVT and VAV systems accessed remotely over the internet or on-site from a smart phone, tablet or computer. Zonex manufactures a system for every building and every budget from a 2 zone residential system to auto-changeover bypass VAV products to support up to 400 units. Product line includes, modulating dampers and D-Fusers with a complete line of wireless thermostats along with fresh air dampers and a humidity mitigation system to meet ASHRAE 62.2.

ZOPPELLARO has been operating in the centralized air conditioning sector since 1975. They specialize in the design and construction of custom air handling units to air condition large environments such as hospitals, shopping centers, cinemas, industrial plants and accommodation facilities.

Zurn Industries, LLC, a Rexnord company, is a recognized leader in commercial, municipal, healthcare and industrial markets. Zurn offers the largest breadth of engineered water solutions, including a wide spectrum of sustainable plumbing products.