Gentherm, Inc. engages in the designing, development, manufacturing, and marketing of heating, cooling, and ventilating devices. It operates through the following business segments: Automotive and Medical. The Automotive segment designs, develops, produces, and sells automotive seat comfort systems, specialized automotive cable systems, and automotive and non-automotive thermal convenience products. The Medical segment includes global power technologies business, and research and development division. The company was founded by Lon E. Bell in 1991 and is headquartered in Northville, MI.