 More than 10,000 businesses employ over 80,000 people in the Geelong region, with manufacturing and processing industries providing around 15,000 jobs, followed by 13,000 in retail, and 8,000 in health and community services.Geelong's major employers were the Ford Motor Company engine plant in Norlane (closed in 2016), aircraft maintenance at Avalon Airport, the head office of retail chain Target Australia(until 2018), the Bartter (Steggles) chicken processing plant and the Shell oil refinery at Corio.GMHBA Limited, a health insurance company, is headquartered in Geelong.