Investigation Service, Investigation Services, Security Companies

USIS
USIS specializes in providing information and security services to government agencies and commercial enterprises. Headquartered in Falls Church, Virginia, USIS delivers background screening and risk management solutions that not only protect national security, but also support and help empower decision-makers the world over

http://www.usis.com

Absolute Investigative and Security Services
Absolute Investigative and Security Services provides Investigative and Security Guard services throughout Maryland. A.I.S. has been serving Maryland's Investigative and Security needs since 1988. Our management team has 100+ years of experience in the Security and Investigative Field.

http://www.absoluteisi.com/

Able Security
Ensure the continued safety and security of your property by requesting periodic patrols from Able Security. Backed by more than 15 years of experience in the property security and investigation industry, our team excels in identifying and addressing security issues before they can develop into major problems. Our security guards and patrol can handle your every need including event security, security escorting, executive private protection and more.

http://www.ablesecurityco.com/index.html