American Home Shield Corporation is the founding American home warranty company and a unit of ServiceMaster. It currently services 1.4 million customers across 49 states and the District of Columbia. American Home Shield was founded in 1971 and operated independently until it was acquired by ServiceMaster (NYSE: SERV) in 1989. Today, it functions as one of ServiceMaster’s “family of brands,” along with Terminix, Furniture Medic, AmeriSpec, ServiceMaster Clean, ServiceMaster Restore, and Merry Maids. It is currently one of a few home warranty companies with active operations in all 48 contiguous states.