| | Contractor | Address | Phone |
| HAFSC | Axiom Network Solutions, Inc. |
6340 Greenwich Road, Seville, OH
| 330-887-5800 |
| HAFSC | Dalton Maintenance, Inc. |
101 W. Main ST, Medway, OH
| 937-849-9055 |
| HAFSC | Midwest Firestop |
132 Beechwood Hills, Newport News, VA
| 757-243-8434 |
| HAFSC | Northwest Firestop |
6419 Monroe Street, Sylvania, OH
| 419.517.4777 |
| HAFSC | Superior Industrial Insulation Company |
3855 West 150th St, Cleveland, OH
| 216-252-9590 |