Based in Sacramento, Calif., Protection One is one of the largest monitored security services in the United States. The second largest electronic security company in the U.S, it offers services in installation, maintenance and monitoring of single-family home security systems, business security systems as well as multifamily security systems. The Better Business Bureau (BBB) accredited company is also one of the country s major providers of wholesale monitoring services through its content management system (CMS) division and a provider of multifamily security solutions, maintenance and monitoring through its Network Multifamily division. Forbes.com has recognized Protection One as one of America s Most Trustworthy Companies.