| Item | Obligations |
|---|---|
| Department of Defense | $324M |
| Department of Agriculture | $233M |
| Department of Homeland Security | $170M |
| Department of the Interior | $84.9M |
| Department of Transportation | $44.8M |
| Department of Health and Human Services | $43M |
| Department of Veterans Affairs | $29.2M |
| Environmental Protection Agency | $10.7M |
| National Aeronautics and Space Administration | $3.5M |
| Department of Justice | $3.4M |
Department of Defense was the top federal buyer in Montana, obligating $324M (34.1% of the state total).