Acadia Healthcare Co., Inc. engages in the provision of behavioral healthcare services. It operates through the following business segments: United States (U.S.) Facilities and the United Kingdom (U.K.) Facilities. The U.S. Facilities segment classified in the following categories: acute inpatient psychiatric facilities; specialty treatment facilities; residential treatment centers; and outpatient community-based services. The U.K. Facilities segment provides inpatient services through facilities, including mental health hospitals, clinics, care homes, schools, colleges, and children's homes. The company was founded in January 2005 and is headquartered in Franklin, TN.