DENSO Air Systems is a global brand specializing in automotive aluminum HAVC pipes, tubes, and hose assemblies. With headquarters in Japan and plants located in Japan, China, Czechoslovakia, and North America, they are part of the renowned Global DENSO group. DENSO Air Systems Michigan, Inc and DENSO Air Systems Mexico, Inc were established in 2009, combining Koyo Corporation in Battle Creek, Michigan, and GAC-Mexico in Monclova City, Mexico.

They are set to open a new facility in southwestern Kentucky in 2011. As a trusted supplier to Toyota, Honda, Subaru, Chrysler, Ford, and GM, as well as Mitsubishi, BMW, Mercedes, and Fleetwood, DENSO Air Systems employs over 1,250 people in North America, operating multiple shifts and producing over 500 different part number assemblies. Adhering to the 'Toyota Production System,' their focus on quality permeates every aspect of their operations.

With a culturally diverse management team, DENSO Air Systems combines the best practices of Japanese and North American business styles, resulting in an efficient hybrid approach. Their mission is to lead the competitiveness of the piping business and ensure the continued growth of Air Systems. They aim to lead the North American supply base in quality, cost, delivery, and customer satisfaction, driven by their dedicated associates who continually pursue professional improvement