Since 1953, Vapco Products has created and distributed cutting-edge and naturally "green" products to the air conditioning and heating industries. Founded and still centrally-located in the St. Louis, Missouri, area, Vapco distributes products retailers and wholesalers worldwide.

Watlow Electric manufacturing company designs and manufactures industrial heaters, sensors, controllers, system assemblies and software — all of the components of a thermal system. Designing and manufacturing the complete thermal system allows Watlow to recommend, develop and deliver the optimum thermal solution for our customers’ equipment and process heat requirements.

William Tao & Associates, Inc. (WTA) is a multi-discipline engineering firm providing innovative services in engineering and energy-effective building systems. WTA provides a wide range of engineering services including mechanical, electrical, plumbing, fire protection, building automation, structural, civil, master planning, and commissioning