Where We Work

Nearly 1,600 WHS employees operate in more than 78 facilities delivering centralized, essential services for the Military Services, OSD, and the Department of Defense Agencies and Field Activities in the National Capital Region and beyond.


The Pentagon is the headquarters of the United States DoD. It is one of the world's largest office buildings, at about 6.5 million sq. ft. housing approximately 26 thousand military, civilian employees, and non-defense support personnel.



The Mark Center is an administrative annex for the Department of Defense managed by Washington Headquarters Services. The 3.2 million sq.ft campus provides office space and conference facilities for more than 6,400 employees. 



Washington Headquarters Services provides dedicated security program support to the Office of Military Commissions at numerous facilities in and around the National Capital Region and at the U.S. Naval Station Guantanamo Bay, Cuba.



More than 78 Department of Defense occupied buildings in the National Capital Region.