| Business | Phone |
| Broderick Custom Steel Fab 3311 Lapeer Rd W, Auburn Hills 48326 | (248) 377-0377 |
| Gen-Oak Fabricators Inc 2501 Brown Rd, Auburn Hills 48326 | (248) 373-1515 |
| Mitchell Fabrication Co 2238 E Walton Blvd, Auburn Hills 48326 | (248) 373-2199 |
| Mound Steel & Supplies Inc 3507 Auburn Rd, Auburn Hills 48326 | (248) 852-6630 |