Founded in 1973 in Tulsa, Okla., and evolving from Guardian Security Systems and Central Security Group, Alert 360 is one of the nation’s oldest-licensed alarm monitoring providers. Today, the company is the fifth largest provider of monitored security and smart home solutions to homes in the United States. Alert 360 was named a 2016 Inc. 5000 “Fastest-Growing Privately Held Company in America” and a “Best Places to Work in Oklahoma” in 2016, 2017, and 2018.