Federal agencies
The federal agencies that buy the most.
A short field guide to the agencies that account for the bulk of federal contracting dollars. Click any agency to start a free trial with that agency pre-set as a filter.
Department of Defense
DoD · ~$450B/yr (largest federal contracting agency by far)
Air Force, Army, Navy, DLA, DISA, DARPA. Heavy on engineering, IT, manufacturing, base support, and R&D contracts. Many SDVOSB and HUBZone set-asides.
Department of Veterans Affairs
VA · ~$30B+/yr in contracts
VA medical centers, cemeteries, IT systems, facilities maintenance. The Vets-First contracting preference makes the VA the highest-affinity buyer for SDVOSB-certified firms.
General Services Administration
GSA · ~$20B+/yr direct + ~$70B/yr through GSA Schedule
Public Buildings Service (federal courthouses, office buildings, Janitorial, Facilities), Federal Acquisition Service (Schedule contracts).
Department of Health and Human Services
HHS · ~$25B/yr
CMS, NIH, CDC. Heavy on IT services, medical research, contract research organizations (CROs).
Department of Homeland Security
DHS · ~$20B/yr
CBP, ICE, FEMA, USCIS, TSA, Coast Guard. IT services, security services, facilities, language services.
Department of Energy
DOE · ~$35B/yr
National laboratory program management, nuclear cleanup, energy research. Most spending flows through M&O contracts to large primes; smaller services and IT contracts available to SMBs.
Department of Agriculture
USDA · ~$9B/yr
Forest Service (facilities, fire, recreation), FSIS (inspection IT), Animal & Plant Health Inspection Service.
Department of the Treasury
Treasury · ~$8B/yr
IRS (a major IT services buyer), FinCEN, Bureau of Engraving and Printing.
Department of Justice
DOJ · ~$8B/yr
FBI, DEA, BOP (Federal Prisons facilities/services), USMS, ATF.
Department of Transportation
DOT · ~$7B/yr
FAA (air traffic control IT, modernization), FHWA, Federal Railroad Administration.
U.S. Army Corps of Engineers
USACE · ~$25B/yr in construction alone
By far the largest federal construction buyer. Civil works (locks, dams, levees, harbors) and military construction.
Department of State / USAID
State · ~$10B/yr combined
International development consulting, embassy services, foreign service IT, language services. State and USAID often co-purchase.
Spend figures are approximate FY2023–FY2024 obligations from usaspending.gov/agency. Treat as order-of-magnitude.