For 75 years Burr OAK Tool Inc. has delivered machines, tools, and expertise to the world's heat exchange manufacturers and tube processing industries. Heat exchangers are an integral part of air conditioning, heating, refrigeration, and air handling units.

DUCTZ has been providing industry-leading air duct cleaning and HVAC restoration services for residential and commercial properties alike.

Haisma Heating & Cooling Inc. is an HVAC company serving West Michigan. The company was established by Garry Haisma, a Northwest side Grand Rapids area native, in 1981.

Heating and air conditioning equipment for residential and commercial applications, 1/2 to 25 tons, under the Comfort-Aire and Century brand names.

Napco-International manufactures and supplies high quality industrial grade heating elements and supporting components to the industrial markets. They provide electric heating elements and accessory products such as HVAC heating elements for electric furnaces, heat pumps, air handlers and many more.

Rack Engineering Division specializes in manufacturing storage and material handling products specifically designed for high weight capacities and heavy use. Rack Engineering understands that professional storage solutions are an integral element for efficiency and organization in the workplace, and they're proud to provide the highest quality products to the distributors and customers.

SANI-VAC Service provides high-quality indoor air cleaning services, including HVAC units, air ducts, and kitchen exhaust cleaning for commercial, industrial, and institutional organizations. It offer much heating and cooling cleaning services including air duct cleaning, ventilation cleaning, coil cleaning, HVAC cleaning, commercial kitchen exhaust degreasing, cooling tower cleaning, and ductwork inspections.