ServiceMaster, a global holding company, purchased Terminix from Cook Industries in 1986. It continued to acquire pest control companies, including former franchisees, to become the largest pest control company in the world by 1990. The company expanded into Europe in 1994 with the acquisition of Peter Cox PLC, a pest-control and wood preservation business in Britain. In 2001, Terminix purchased its former partner, Sears Termite and Pest Control. In 2007, ServiceMaster moved its main offices from Downers Grove, Illinois to the site of Terminix's headquarters in Memphis, Tennessee.