Oshkosh Corp. is an industrial company, which engages in the design, development, and manufacture of purpose-built vehicles and equipment. It operates through the following segments: Access, Defense, and Vocational. The Access segment designs and manufactures access and material handling equipment. The Defense segment is involved in design and manufacture, and sustains vehicles and mobility systems. The Vocational segment includes the Pierce, Maxi-Metal, McNeilus, AeroTech, IMT, Frontline Communications, and Oshkosh S-Series businesses. The company was founded in 1917 and is headquartered in Oshkosh, WI.