| Business | Phone |
| A Finkl & Sons Co 2011 N Southport Ave, Chicago 60614 | (773) 975-2510 |
| Anderson Casting Co Inc 1725 W Carroll Ave, Chicago 60612 | (312) 733-1185 |
| Art Brass Foundry Inc 1523 W Hubbard St, Chicago 60622 | (312) 666-6221 |
| Cast-Rite Steel Castings Corp 2135 W Carroll Ave, Chicago 60612 | (312) 738-2900 |
| Chicago Aluminum Castings Co 2647 W Ogden Ave, Chicago 60608 | (773) 762-3009 |
| East Side Pattern & Engrng 10449 S Avenue N, Chicago 60617 | (773) 734-4726 |
| Cronimet Corp 10602 S Buffalo Ave, Chicago 60617 | (773) 933-2900 |