Established in 1955, U.S. Security Associates is one of the largest security firms in the United States. Its services include armed, unarmed and special event security; patrolling; risk analysis; security consulting; and loss prevention. The firm provides security services to financial institutions, residential communities, colleges and universities, retail outlets, and manufacturing, research, distribution and health care facilities. Its loss prevention programs assist retailers in reducing losses due to theft, control deficiencies and operating inefficiencies. U.S. Security Associates is an ISO 9001:2000-certified firm that employs more than 24,000 people. Its clients include Lockheed Martin, Sony, JPMorgan Chase, PepsiCo, UPS and H.J. Heinz. Headquartered in Roswell, Ga., U.S. Security Associates maintains offices in several cities, including Columbus, Ohio.