# List of federal agencies in Northern Virginia

The following Federal Agencies are headquartered in Northern Virginia. Agencies with approximately 10,000+ employees, or a $10 billion+ budget are in bold.
| Agency (common abbreviation) | City/CDP (Area) |
| Defense Contract Management Agency | Alexandria |
| National Credit Union Administration | Alexandria |
| Office of the Inspector General, U.S. Department of Defense | Alexandria |
| Office of Local Defense Community Cooperation, formerly the Office of Economic Adjustment (OEA) (OLDCC) | Alexandria |
| United States Patent and Trademark Office (PTO) | Alexandria |
| Food and Nutrition Service (FNS) | Alexandria |
| National Science Foundation (NSF) | Alexandria |
| Foreign Service Institute | Arlington (Arlington Hall) |
| Air Force Office of Special Investigations (AFOSI) | Triangle (Quantico) |
| Air Force Research Laboratory (AFOSR) | Arlington (Ballston) |
| DARPA | Arlington (Ballston) |
| Defense POW/MIA Accounting Agency (DPAA) | Arlington (The Pentagon) |
| Defense Security Cooperation Agency (DSCA) | Arlington (The Pentagon) |
| Cybersecurity and Infrastructure Security Agency (CISA) | Arlington (Ballston) |
| Nuclear Waste Technical Review Board | Arlington (Courthouse) |
| US Marshals Service (USMS) | Arlington (Crystal City) |
| Special Inspector General for Afghanistan Reconstruction (SIGAR) | Arlington (Crystal City) |
| Warrior Transition Command | Arlington (Crystal City) |
| Mine Safety and Health Administration (MSHA) | Arlington (Crystal City) |
| Army National Guard Readiness Center | Arlington (Arlington Hall) |
| Joint Improvised Explosive Device Defeat Organization | Arlington (The Pentagon) |
| United States Air Force (USAF) | Arlington (The Pentagon) |
| United States Army (USA) | Arlington (The Pentagon) |
| United States Marine Corps (USMC) | Arlington (The Pentagon) |
| United States Navy (USN) | Arlington (The Pentagon) |
| Department of Defense (DOD) | Arlington (The Pentagon) |
| Department of the Air Force | Arlington (The Pentagon) |
| Department of the Army | Arlington (The Pentagon) |
| Department of the Navy | Arlington (The Pentagon) |
| Missile Defense Agency (MDA) | Fort Belvoir |
| National Guard Bureau (NGB) | Arlington (The Pentagon) |
| National Security Space Office | Arlington (The Pentagon) |
| National Technical Information Service (NTIS) | Alexandria |
| Pentagon Force Protection Agency (PFPA) | Arlington (The Pentagon) |
| Transportation Security Administration (TSA) | Arlington (Pentagon City) |
| Drug Enforcement Administration (DEA) | Arlington (Pentagon City) |
| Bureau of Conflict and Stabilization Operations (CSO) | Arlington (Rosslyn) |
| Bureau of Diplomatic Security | Arlington (Rosslyn) |
| Bureau of Overseas Buildings Operations | Arlington (Rosslyn) |
| United States Trade and Development Agency | Arlington (Rosslyn) |
| Federal Deposit Insurance Corporation (FDIC) | Arlington (Virginia Square) |
| United States Fish & Wildlife Service | Bailey's Crossroads |
| National Reconnaissance Office (NRO) | Chantilly |
| National Reconnaissance Operations Center | Chantilly |
| Defense Health Agency (DHA) | Falls Church |
| Defense Contract Audit Agency (DCAA) | Fort Belvoir |
| Defense Logistics Agency (DLA) | Fort Belvoir |
| Defense Counterintelligence and Security Agency (DCSA) | Triangle (Quantico) |
| Defense Human Resources Activity (DHRA) | Alexandria |
| Defense Technology Security Administration (DTSA) | Alexandria |
| Defense Threat Reduction Agency (DTRA) | Fort Belvoir |
| Department of Defense Education Activity (DODEA) | Alexandria |
| National Geospatial-Intelligence Agency (NGA) | Fort Belvoir |
| United States Army Intelligence and Security Command (INSCOM) | Fort Belvoir |
| Washington Headquarters Services (WHS) | Arlington (The Pentagon) |
| Central Intelligence Agency (CIA) | McLean (Langley) |
| Farm Credit Administration | McLean (Tysons Corner) |
| National Counterterrorism Center (NCTC) | McLean (Tysons Corner) |
| Office of the Director of National Intelligence (ODNI) | McLean (Tysons Corner) |
| United States Geological Survey (USGS) | Reston |
| Bureau of Indian Affairs Division of Acquisitions | Reston |
| Department of State | Arlington |