ManTech
Chantilly, VA 20151
Allied Universal
Sterling, VA 20166
Securitas
Leesburg, VA 20175
US Department of War
Arlington, VA 22209
Admiral Security Services
Mc Lean, VA 22102
Compass Group USA
Poolesville, MD 20837
Cyiris
Rockville, MD 20847
Regal Cinemas Corporation
Ashburn, VA 20147
BTI Security
Washington, DC 20001
US MAIN PATROL DIVISION
Washington, DC 20001