| Item | Obligations |
|---|---|
| Department of Defense | $4.3B |
| Department of Transportation | $3.1B |
| General Services Administration | $3B |
| Department of Homeland Security | $2.6B |
| Department of State | $1.5B |
| Department of Energy | $1.3B |
| Department of Health and Human Services | $1.2B |
| Department of Veterans Affairs | $1.1B |
| Department of the Treasury | $838M |
| Department of Education | $700M |
Department of Defense was the top federal buyer in District of Columbia, obligating $4.3B (19.1% of the state total).