| | Contractor | Address | Phone |
| HAFSC | Beckerle Consultants, Inc. |
1645 Headland Dr, Fenton, MO
| 636-305-1600 |
| HAFSC | Commercial Fireproofing & Insulation of OK |
12252 E. 60th Street, Tulsa, OK
| 918-392-7090 |
| HAFSC | Durante Construction, Inc. |
705 Yukon Ave., Yukon, OK
| 405-787-6200 |
| HAFSC | Nabholz Construction Services |
1120 E. Reno, Oklahoma City, OK
| 405-236-2400 |