| Business | Phone |
| Metal One America 2250 N River Rd 2055, Des Plaines 60018 | (847) 685-5404 |
| Mitsubishi International Steel 6250 N River Rd, Des Plaines 60018 | (847) 685-5400 |
| Triple R Steel Inc 285 W Old Higgins Rd, Des Plaines 60018 | (847) 298-2930 |
| Doyle & Sons Construction 1371 Perry St, Des Plaines 60016 | (847) 593-0614 |
| Unison Site Management Corp 3158 S River Rd, Des Plaines 60018 | (847) 294-1155 |