U.S. Security Associates, Inc. | 32,352 followers on LinkedIn. Now part of Allied Universal. For up to date information and jobs, please see the Allied Universal profile. | U.S. Security Associates (USA) is the market-leading, wholly-owned, American, full-service safety and security solutions provider. With over 160 locally-responsive offices, international locations and over 50,000 dedicated professionals, they offer the most complete array of physical security, remote surveillance, and global consulting and investigations to ensure better outcomes for thousands of clients and a range of industries.