ADT, Allied Barton Security Services and Securitas are three major security companies within the United States. ADT is one of the largest security companies as of 2015, and has over 100 U.S. installation branches. Allied Barton has 120 offices in the United States as of the same date.
ADT provides home security systems and security monitoring to customers. The company provides same-day installation for security systems, and provides contact information on its website for customers to request free quotes. Features of ADT home security systems includes system controls, burglar alarm monitoring, emergency medical alert systems, home security cameras and surveillance systems and home carbon monoxide detector monitoring. ADT Customer Monitoring Centers monitor homes connected to the system throughout the year.
Allied Barton Security Services focuses on security solutions for industries, educational institutions, government buildings and shopping centers, in addition to other places of employment. The company also serves residential communities. Among the security services available from the company are access control, vehicle patrol, bicycle or segway patrol and control room/CCTV monitoring.
Securitas provides clients with on-site, mobile and remote guarding, in addition to security systems and corporate risk management. With global operations, the company's U.S. establishment alone possesses over 86,000 security officers and over 640 branch managers, as of 2015.