| Item | Obligations |
|---|---|
| Department of Defense | $5.7B |
| General Services Administration | $4.2B |
| Department of Transportation | $4B |
| Department of Homeland Security | $3.9B |
| Department of State | $1.8B |
| Department of Energy | $1.6B |
| Department of Health and Human Services | $1.5B |
| Department of Veterans Affairs | $1.4B |
| Department of the Treasury | $1.1B |
| Department of Education | $778M |
Department of Defense was the top federal buyer in District of Columbia, obligating $5.7B (18.7% of the state total).