Atlanta’s Trusted Security Company since 1989. PSI Security serves local businesses, executives, professional athletes, celebrities, and everyday people that require a professional security team. Our security officers are fully trained as well as participate in ongoing security skills training in order to fast deal with emergency situations as they arise. At PSI Security Guard & Security Patrol Service, we provide value to you by understanding your requirements and providing outstanding security services, including uniformed officers, vehicle patrol, bike patrol, construction security, temporary security, and more.