| Business | Phone |
| A Finkl & Sons Co 2910 E 10 Mile Rd, Warren 48091 | (586) 756-3777 |
| A-1 Steel Inc 23663 Pinewood St, Warren 48091 | (586) 757-7430 |
| Warren Steel Co 21601 Hoover Rd, Warren 48089 | (586) 756-6600 |
| American Basic Industries Inc 23220 Pinewood St, Warren 48091 | (586) 758-1000 |
| Sure Alloy Steel Corp 23401 Kate Ave, Warren 48091 | (586) 757-6690 |
| Bayside Steel 21601 Hoover Rd, Warren 48089 | (586) 756-1377 |
| St Clair Steel 23675 Mound Rd, Warren 48091 | (586) 758-4356 |
| Scion Steel Inc 21555 Mullin Ave, Warren 48089 | (586) 755-4000 |
| Selective Steels & Alloys 13995 E 10 Mile Rd, Warren 48089 | (586) 552-8730 |
| Regal Steel Co 2220 Morrissey Ave, Warren 48091 | (586) 756-8300 |
| Dun Specialty Steels Inc 23333 Sherwood Ave, Warren 48091 | (586) 757-4775 |
| Elite Stainless Steel Inc 24560 Groesbeck Hwy, Warren 48089 | (586) 445-2960 |
| Nobel Metal Processing Inc 28207 Van Dyke Ave, Warren 48093 | (586) 558-3868 |
| Mst Steel Corp 24417 Groesbeck Hwy, Warren 48089 | (586) 773-5460 |
| Metal Mart 31164 Dequindre Rd, Warren 48092 | (586) 977-5820 |