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.

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.

WSP Global Inc. meets the customer's needs with cross-disciplinary services across multiple sectors and markets including: advisory; buildings; water and environment; energy; and transportation & infrastructure.

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.

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.

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.

The Zigbee Alliance is the foundation and future of the IoT. Established in 2002, the company's wide-ranging global membership collaborates to create and evolve universal open standards for the products transforming the way they live, work, and play.

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

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.

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.