Ronald C. Thomas

Martin & Co. engages in rental, leasing and property management business. It issues various certifications, standards, and guidelines for the security profession. The company was founded in 1955 and is headquartered in Alexandria, VA.

The Institute of Electrical & Electronics Engineers, Inc. is a non-profit organization that owns and operates technical professional association. It provides membership and services, societies and communities support, publication services, and conferences and events. The company was founded in 1884 and is headquartered in New York, NY.

National Society of Professional Engineers operates as a national organization committed to addressing the professional concerns of licensed PEs across all disciplines. The company was founded in 1934 and is headquartered in Alexandria, VA.

Securacom, Inc. provides security and fire protection systems.

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.

National Fire Protection Association provides fire, building, electrical and life safety materials. The company was founded in 1896 and is headquartered in Quincy, MA.

Sentech, Inc. engages in the manufacture of position sensing transducers along with supporting signal conditioning and instrumentation. It products include linear variable differential transducers, rotary variable differential transducers, FASTAR sensors, and HydraStar sensors. The company is headquartered in Willow Grove, PA.