Wittichen Supply Company is a wholesale distributor providing the best in class HVAC/R equipment, parts, and supplies to licensed HVAC/R contractors in the Southeastern United States

WM Buffington Co. is a family-owned business that has been providing quality heating and cooling services to the Central Pennsylvania area since 1952. For 66 years, their team of experts have dedicated themselves to providing fast, professional work with superior customer service.

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.

Wm. W. Meyer & Sons, Inc. are renowned manufacturers of commercial and industrial vacuums for cleaning ducts, boilers, furnaces and chimneys in residential, commercial, institutional and industrial applications.

Woburn Mechanical Services Limited was established in 2011 and offers a wide range of services including installations, servicing and maintenance contracts. They offer bespoke contract solutions catering to individual client requirements. Situated in Nottinghamshire, United Kingdom, the company is ideally positioned to provide services to businesses along the M1/M62 corridor.

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.

World Environment Center is an independent, global non-profit, non-advocacy organization that advances sustainable development through the business practices of member companies and in partnership with governments, multi-lateral organizations, non-governmental organizations, universities and other stakeholders.

Wright Sales is a premier manufacturer's sales agency for the HVAC/R industry in California, Arizona, Nevada, New Mexico, El Paso, TX and Hawaii.

The Wyss Institute at Harvard University uses biological design principles to develop new engineering innovations that will transform medicine and create a more sustainable world. By emulating biological principles of self assembly, organization and regulation, they are developing disruptive technology solutions for healthcare, energy, architecture, robotics, and manufacturing, which are translated into commercial products and therapies.

XCI Zoning was founded to provide the latest and newest technologies and ideas to provide better comfort and better control of the HVAC system. Specializing in forced air zoning, XCI has designed systems that enable HVAC systems to deliver greater comfort and reduced energy consumption.

XNRGY engineers and manufactures HVAC systems focused on low sound and vibration levels, data center efficiency, and power usage effectiveness while supporting LEED certification in a wide range of applications.

Xpelair was formed in 1955 as a manufacturer of unitary ventilation products. They are renowned providers of high quality quiet fans for window, wall and roof mounting. 2-speed reversing fans for exhaust or air intake.

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.

Yardi is dedicated to the design, development, and support of real estate investment management and property management software solutions. They offer full business solutions for every real estate market, including multi-family, single family, affordable, public, senior and military housing as well as office, industrial, and retail market segments.

ellow Transports was created in 2009. The company is part of the ACMG Finance group. The quality of the service of this young company is beyond doubt. Listening to its customers and employees makes Yellow Transports the company of tomorrow.

Yerhot Environmental Solutions is a trusted mold specialist. Their expertise comprises mold remediation services, mold inspection services, and precise mold testing services to ensure their indoor environment is safe.

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.

Celebrating over 50 years of business, Yorkland Controls has roots in distributing and warehousing heating control products, such as Flame Safeguard and Burner and Boiler Management Systems. Over the past several years, they have expanded into Building Automation, Security and Lighting Integration, and Smart Building Platforms.

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.

Young Supply Company is Michigan & Northern Ohio’s Premier HVAC/R, Food Service Equipment, and Hydronics Wholesaler. Young Supply offers products across four main sales sectors: Refrigeration, HVAC, Food Service Equipment, and HVAC.

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 SinoKing Air-conditioning & Refrigeration Co.,Ltd. is one of the largest central air-conditioning manufacturer in Zhejiang Province of China. They are specialized in design, manufacture, sales and services of central air conditioning full range of products.

Zimmer's Heating & Cooling business has expanded to include residential, retail, and commercial heating and cooling.

ZONEFIRST is the first company that successfully developed and marketed HVAC Zoning Systems back in the 1950's and is today a renowned manufacturer of HVAC zone dampers and zoning systems. They provide zone control systems, automatic dampers, registers and diffusers for fresh air intake, economizers and ventilation control.

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.

Zoro makes it quick and easy for all industries, professions and trades to get the tools and equipment they need. Zoro's extensive range of over 310,000 products includes everything from power tools and chemicals to personal protective equipment, from all the leading brands.

Zukunft Erdgas (Future of Gas) is the initiative of the German gas industry. They represent the brand and the product natural gas, as well as green gas and are contacts for politics, market partners, consumers and the media. They are involved in natural gas, power generation, heating market, heating, biogas, biomethane, hydrogen, power plants, fuel cells, LNG and power-to-gas technologies.