VTS International GmbH, ISO 9001: 2015 certified, is the German branch of an international group which concentrates its activities on the aftermarket for turbo-compressors. VTS's core competencies are the production of air coolers for Centac (Ingersoll Rand) and TurboAir centrifugal compressors, as well as the delivery of all other spare parts for these two brands.

Innovation is at the heart of everything at WAGO. From pioneering CAGE CLAMP® spring pressure connection technology to extensive range of Interconnect, Interface and Automation solutions, such as the fieldbus independent WAGO-I/O-SYSTEM, their customers count on the unconditional performance and reliability of their products to ensure the safe, efficient operation of their systems every time.

Water Engineering Inc. offers water treatment services, wastewater consulting and legionella management. The company also has programs for commercial and industrial economic buyers.

WEG is a global electric-electronic equipment company, operating mainly in the capital goods sector with solutions in electric machines, automation, and paints for several sectors, including infrastructure, steel, pulp and paper, oil and gas, mining, among many others.

Weil Pump is the premier wastewater pump manufacturer in the U.S. Weil specializes in submersible & vertical, grinder & slicer, vortex, condensate, dry-pit, and centrifugal pumps. In addition, Weil manufactures pump accessories such as control panels, level controls, basin covers, quick-removal systems, valve assemblies, and reverse-flow systems.

Weil-McLain is a renowned North American designer and manufacturer of hydronic comfort heating systems for residential, commercial and institutional buildings since 1881. They provide heat exchangers, indirect fire water heaters and boilers for space heating in residential, commercial and institutional applications.

Whirlpool Corporation is a home appliance company with specialties in innovation, manufacturing, brand leadership, product leadership, operational excellence, people excellence, diversity and inclusion, social responsibility, and environmental sustainability. Whirpool Corporation has multiple brands under its name and they deal with different market sectors including HVAC.

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.

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.

Zed-Air Heating and Air Conditioning was established in 1993, by Eric and Cindy Barron. Zed Air is an independently owned and operated company. Zed-Air Heating & Air Conditioning is a local company, and the community is very important and proud to support local charities like the Salvation Army and Mens Mission.

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.