| | Contractor | Address | Phone |
| HAFSC | Brand Fire Safety Services (CT) |
2 Chapman Ln, Gales Ferry, CT
| 860-464-1991 |
| HAFSC | Davenport Commercial |
7477 Mason King Court, Manassas, VA
| 703-631-2604 |
| HAFSC | Esco Firestop Inc. |
1511 Ritchie Hwy Ste 306, Arnold, MD
| 410-757-7668 |
| HAFSC | Regional Contracting |
1232 Ridgely Rd., Baltimore, MD
| 410-528-1881 |
| HAFSC | Superior Industrial Insulation Company |
3855 West 150th St, Cleveland, OH
| 216-252-9590 |