Aerovent is a globally renowned manufacturer in the industrial fan market that designs, engineers, and supplies a wide variety of industrial-grade axial fans, centrifugal process blowers, corrosion-resistant composite fans, OEM fans/propellers and custom air make-up units.

Ace Supply Co., Inc. was established in 1958 to provide quality products for both residential dealers and commercial contractors. They are renowned providers of heat and recovery systems, ducts, heaters, ventilation products and equipment.

Allegis designs and supplies HVAC hardware, such as: latches, hinges, door-stays, seals, gaskets and accessories (cams, rods, window ports). At Allegis, they live and breathe access hardware opening doors to unparalleled quality and innovation. They help solve customer-specific problems and supply thousands of products, including handles, latches, hinges, drawer slides, gas springs, sealing profiles, adhesives, and more.

Digi-Key is one of the fastest-growing distributors of electronic components in the world. Digi-Key offers the world’s largest selection of electronic components in stock and available for immediate shipment. From prototype to production, they are here to fuel innovation all over the world.

Ductcap Products Inc. are renowned manufacturers of temporary reusable duct end covers. These duct end covers help keep duct work clean during shipping, staging and during construction.

Phillips and Temro Industries (PTI) is a company with a rich 100-year history as a global OEM and aftermarket provider of custom engineered thermal and electrical solutions. PTI’s future is focused on the continued evolution of engines and new energy vehicles as the company continues to provide solutions that maximize equipment performance, reliability and safety.

Reclamation Technologies is the Midwest pioneer EPA certified refrigerant reclamation company. They offer a wide range of services to assist their customers with refrigerant management issues.

Sales ​​Engineers Inc. is a manufacturers' representative selling to the heating, plumbing and specialty refrigeration markets. Their emphasis is on distributor oriented business with a contractor/dealer focus. They represent the following manufacturers: Purolator, Broan-Nutone, Gastite, Nortek Global HVAC, First Company, Lenox, Hilmor, Shurtape, and Thermaflex.

Tjernlund Products provides quality engineered and manufactured products that solve exhaust, ventilation and heating/cooling problems. They provide Duct fans, draft inducers, power venters for horizontal vents, vent hoods, fresh and combustion air intakes, room-to-room transfer fans, exhaust and radon fans.

TSI partners with research institutions and customers around the world to set the standard for measurements relating to aerosol science, air flow, indoor air quality, fluid dynamics and biohazard detection.