Thomas Chapman

VisualGate Systems, Inc. develops and manufactures video security solutions. It specializes in homeland security, commercial, and residential safety markets. The company was founded by David Kerzner and Ron Yekutiel in October 2003 and is headquartered in Toronto, Canada.

ADT LLC provides electronic security systems and services. Its security solutions include intrusion detection, fire detection, video surveillance, access control, critical condition monitoring, health and elder care monitoring, electronic article surveillance, radio frequency identification and integrated systems. The company was founded by Edward Augustin Calahan in 1874 and is headquartered in Boca Raton, FL.