Waterloo Filtration Institute (WFI) is dedicated to developing advanced filtration and separation solutions for a clean and sustainable world. They have over 40 years of extensive experience in the field and aim to serve the industry with the most comprehensive Education Program for Filtration & Separation Specialist Certification, Filter Product Certification, and Research & Development.

WDF Inc. (founded in 1929) is one of the plumbing, HVAC contracting and specialty general contracting companies. They have joined with Five Star Electric Corporation and Nagelbush Mechanical to form GreenStar Services Corporation as a diversified full service construction company.

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. 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.

The World Plumbing Council (WPC) is an international organization which aims to develop and promote the image and standards of the plumbing Industry worldwide. World Plumbing Day is an international event on March 11 every year, initiated by the World Plumbing Council as a means of highlighting the important role plumbing plays in the health, safety and sustainability of the community.

The Worshipful Company of Plumbers is a Livery Company that aims to support and make a difference within the ancient industry of plumbing. It assists and supports charities and trainees, partners with industry through affiliations, and works closely with the Lord Mayor and the City of London.

XOi Vision is a cloud-based mobile application that uses visual intelligence to arm technicians with on-site digital resources and access to remote live support.

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.

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.

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.

Yunker Plastics, Inc. is a fabricator and distributor of reinforced HDPE, Firestone EPDM Geomembrane, and AquaWeve materials used in Lake and Pond lining installations. We also fabricate flexible air distribution tubing for commercial, industrial and agricultural applications.

Stainless steel and aluminum chimney liner in both flexible and rigid; Z-Vent special gas vent pipe CAT II, III, IV. 3 gas fired heating; OEM manufactured product for all heating equipment.

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.