Thomas Edward Swain

Envera Systems LLC engages in the provision of security services. It offers surveillance, access control, keyless entry, virtual gate guard, virtual doorman, burglar alarm and visitor verification for gated communities, clubhouses, pools and other amenities. The company was founded by Thomas Edward Swain and Addi J. Aloya in 1996 and is headquartered in Coconut Creek, FL.

Sonitrol Corp. engages in manufacturing and marketing of electronic security products for commercial, industrial and institutional clients in North America. It offers audio intrusion detection systems; access control systems; video surveillance solutions; and fire detection products, including smoke and heat detection, water flow and sprinkler monitoring, temperature monitoring, elevator recall, voice evacuation system, and duct detection solutions. The company was founded by Robert W. Baxter on June 16, 1960 and is headquartered in Berwyn, PA.

Part of AT & T, Inc., National Guardian Corp. is a company that provides security services. The company is based in Greenwich, CT. National Guardian was acquired by Ameritech Corp. on August 01, 1995.