David Ramirez

Security Alliance LLC provides security solutions for private and business environments. Its services include professional security services, special response, close protection, security training and consulting and investigative services. The company was founded by David Ramirez in 2001 and is headquartered in Miami, FL.

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.

Pinkerton Government Services, Inc. specializes in security, fire and emergency services for government agencies and contractor companies. Its services include agency level security clearances, government regulated security services. The company is headquartered in Springfield, VA.

G4S Secure Solutions (USA), Inc. provides security risk solutions. It offers corporate risk and youth services, fraud and investigations, security products, software and personnel, systems integration, and retail solutions. The company was founded by George R. Wackenhut in 1955 and is headquartered in Jupiter, FL.