John S. Enwright

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.

Apollo Security International, Inc. offers personalized security guard and patrol services. Its services include uniformed personnel, investigative services, physical security surveys, security consulting, and intellectual property investigations, due diligence, risk/vulnerability assessments, security plans, concierge/desk attendant services, patrol services, and security training programs. The company was founded by Dennis M. Crowley, Jr., Richard T. Ryer and Dennis M. Crowley, III in 1990 and is headquartered in Walpole, MA.