Koester Corporation was founded in April, 1970, in Defiance, Ohio. Originally focusing on engineering/controls for the foundry industry, the company steadily expanded into most automation-related industries.

The company relocated from Defiance to Napoleon in the summer of 2009. We have since built a 20,000 sq ft addition to our manufacturing facility in order to build much larger machinery. We specialize in automation for many industries, including automotive, painting systems, conveyors & material handling, aerospace, irrigation, glass bottles and tableware, tire & rubber, animal rendering, municipal water treatment, hydraulics, and many, many more.