P-One is one of the largest vertically integrated national providers of sales, installation, monitoring, and maintenance of electronic security systems to homes and businesses and has been recognized as one of “America’s Most Trustworthy Companies” by Forbes.com. Network Multifamily, P-One’s wholly owned subsidiary, is the largest security provider to the multifamily housing market. P-One also owns the nation’s largest provider of wholesale monitoring services, the combined operations of CMS and Criticom International.