| Item | Obligations |
|---|---|
| FISHER SAND & GRAVEL CO | $13.4B |
| BARNARD CONSTRUCTION COMPANY, INCORPORATED | $4.5B |
| SOUTHWEST VALLEY CONSTRUCTORS CO | $2.5B |
| SLS FEDERAL SERVICES LLC | $2.4B |
| SPENCER CONSTRUCTION LLC | $2.4B |
| WHITING-TURNER CONTRACTING COMPANY, THE | $1B |
| BL HARBERT INTERNATIONAL LLC | $921M |
| M. A. MORTENSON COMPANY | $858M |
| BLACK CONSTRUCTION-TUTOR PERINI JV | $703M |
| CLARK CONSTRUCTION GROUP LLC | $686M |
FISHER SAND & GRAVEL CO led all vendors with $13.4B in obligations, 26.7% of the market.