Department of Army (Army)
Department of Navy (Navy)
Department of Air Force (Air Force)
Chemical and Biological Defense (CBD)


Defense Advanced
Research Projects Agency (DARPA)
Defense Health Agency (DHA)
Defense Logistics
Agency (DLA)
Defense Microelectronics
Activity (DMEA)

Defense Threat Reduction Agency (DTRA)   Missile Defense Agency (MDA)   National Geospatial-Intelligence Agency (NGA)   United States Special
Operations Command (USSOCOM)

  Office of the Secretary of Defense