Executive Security Systems is a privately owned security services contractor incorporated and working under Texas law since 1976. With a location in San Antonio, the company operates under the Texas Department of Public Safety Private Security Bureau. It provides permanent and temporary armed and unarmed security officers. Executive Security Systems also offers private investigation and mobile patrol services through its offices in Dallas, San Antonio and Houston. The company s dispatch centers employ more than 500 individuals and have a fleet of over 25 vehicles. It provides security officer services for various businesses and governmental clients. Executive Security Systems conducts investigations in various areas, such as audit, surveillance, premises protection, and insurance and financial fraud.