- Defense Advanced Research Projects Agency (DARPA)
- Defense Contract Audit Agency (DCAA)
- Defense Contract Management Agency (DCMA)
- Defense Finance and Accounting Service (DFAS)
- Defense Information Systems Agency (DISA)
- Defense Intelligence Agency (DIA)
- Defense Logistics Agency (DLA)
- Defense Security Service (DSS)
- Defense Threat Reduction Agency (DTRA)
- National Security Agency (NSA)
- Pentagon Force Protection Agency