Protection One Inc. is one of the largest monitored security companies in North America. The company serves more than one million customers across the continent. Protection One offers its services to single family and multifamily residences, as well as commercial subscribers. The company provides installation, maintenance and monitoring of fire and burglar alarm systems. Protection One s subsidiary, Network Multifamily, is one of the largest and oldest monitored security providers to the multifamily housing market. The company has more than 2,300 professionals to serve its customers out of approximately 64 branch offices and three monitoring facilities. Protection One Inc. maintains its corporate headquarters in Lawrence, Kan.