| Item | Obligations |
|---|---|
| Department of Defense | $419M |
| Department of Agriculture | $356M |
| Department of Homeland Security | $190M |
| Department of the Interior | $112M |
| Department of Health and Human Services | $87.6M |
| Department of Transportation | $84M |
| Department of Veterans Affairs | $32.2M |
| Environmental Protection Agency | $16.1M |
| Department of Energy | $9.3M |
| General Services Administration | $7.4M |
Department of Defense was the top federal buyer in Montana, obligating $419M (31.6% of the state total).