| Michael Baker International, Inc. | 11 | $90,000 | $85,619 – $94,590 |
| Bowman Consulting Group, Ltd. | 7 | $80,000 | $78,683 – $87,433 |
| DLZ Corporation | 7 | $79,000 | $77,500 – $79,914 |
| AECOM Technical Services, Inc. | 5 | $95,000 | $84,972 – $101,955 |
| Infrastructure Engineering Inc. | 5 | $96,359 | $85,049 – $100,131 |
| Ardurra Group, Inc. | 3 | $80,000 | $76,514 – $80,000 |
| Pacific Federal Management, Inc. | 3 | $56,202 | $56,202 – $58,101 |
| Strong Rock Engineering Group, PLLC | 2 | $77,000 | $77,000 – $77,000 |
| Cordoba Corp. | 2 | $126,400 | $120,700 – $132,100 |
| Freeport-McMoRan Morenci Inc. | 1 | $100,000 | $100,000 – $100,000 |
| KHLG & Associates, Inc. | 1 | $85,883 | $85,883 – $85,883 |
| InfraTerra, Inc. | 1 | $106,163 | $106,163 – $106,163 |
| Freeport Minerals Corporation | 1 | $107,000 | $107,000 – $107,000 |
| MS Engineers P.C. | 1 | $101,774 | $101,774 – $101,774 |
| O'Brien Engineering, Inc. | 1 | $64,459 | $64,459 – $64,459 |
| Resolution Group, Inc. | 1 | $100,000 | $100,000 – $100,000 |
| Triangle Engineering, LLC | 1 | $100,000 | $100,000 – $100,000 |
| Wave Civil II | 1 | $74,000 | $74,000 – $74,000 |