| Item | Obligations |
|---|---|
| Nonscheduled Chartered Freight Air Transportation | $144M |
| Electronic and Precision Equipment Repair and Maintenance | $137M |
| Commercial and Institutional Building Construction | $123M |
| Highway, Street, and Bridge Construction | $57.9M |
| Power, Distribution, and Specialty Transformer Manufacturing | $57M |
| Engineering Services | $44.5M |
| Remediation Services | $35M |
| Other Heavy and Civil Engineering Construction | $33.7M |
| Other Aircraft Parts and Auxiliary Equipment Manufacturing | $26.4M |
| Water and Sewer Line and Related Structures Construction | $22.7M |
Nonscheduled Chartered Freight Air Transportation was the largest industry in Montana, with $144M obligated.