Frontdoor, inc. operates a home services platform that provides home service plans to homeowners in the United States. It provides services under the HSA, OneGuard, Landmark, and American Home Shield brand names. The company serves homeowners who require assistance with technical home repair issues by utilizing its network of pre-qualified professional contractor firms. Frontdoor primarily derives revenue from three channels: existing contract renewals, selling as part of a real estate transactions, and selling direct to consumer (DTC). With 30% and 50% of the real estate and DTC market share, respectively, Frontdoor and its American Home Shield brand is by far the largest player in home warranty market.