R. Williamson & Associates has been providing industry with clean, comfortable air. They provide an interactive experience, having engineers and technical sales representatives on staff with more than 135 years of air systems design experience.

SquareHVAC have over 25 years of experience in the heating, ventilation, and air conditioning industry (HVAC). They believe in quality workmanship and customer service. They offer 24-hour emergency service throughout the year, including heating, ventilation system and air conditioning (HVAC).

Temperature Equipment Corporation (TEC) is a wholesale HVAC distribution company headquartered serving Illinois, Indiana, Wisconsin, Minnesota, Kansas, Missouri, and Michigan. They are a One Stop Shop for all HVAC needs from residential to commercial to industrial including equipment, controls, parts and supplies.

The YMI Group provides award-winning mechanical construction, HVAC and Plumbing service to general contractors; high-tech companies; property management firms; local, state, and federal government agencies; and hospitals and laboratories.

Thomas Sales has been a cornerstone of the Chicago construction market for over 35 years. Humble beginnings as a rep/distributor for the hardware stores of the Chicagoland area and then driving the growth of Home Depot's expansion throughout the Midwest with Siemens, Farenhiet and many other manufacturers. As typical retail sources separated themselves from regional representation, Thomas Sales adapted.

Tripp Lite is a manufacturer of power protection & connectivity solutions, providing solutions for the data center, factory floor, office, home & more. They also provide airflow management solutions, portable air conditioners, rack cooling fans, aisle containment systems and much more.

Around the globe, UL works to help customers, purchasers and policymakers navigate market risk and complexity. UL builds trust in the safety, security and sustainability of products, organizations and supply chains – enabling smarter choices and better lives. Their robust suite of offerings includes testing, inspection, auditing, certification, marketing claim verification, training, advisory services and software solutions.

Van Druen Heating & Air Conditioning is into air conditioning, heating solutions, indoor air quality, etc and is based out of the USA.

WaterSurplus delivers sustainable water treatment solutions across industries and around the world. This includes engineering and design services, custom turn-key equipment solutions, NSF/ANSI 61 certified media filtration systems. WaterSurplus creates and maintains the marketplace for buyers and sellers to create value by redeploying surplus water treatment equipment.