| Business | Phone |
| Amcor 2301 W 57th St, Chicago 60636 | (773) 436-2880 |
| White Way Sign & Maintenance 1317 N Clybourn Ave, Chicago 60610 | (312) 642-6580 |
| Weld-Seam Inc 3421 W Belmont Ave, Chicago 60618 | (773) 588-1012 |
| Welding Apparatus Co 1668 N Ada St, Chicago 60622 | (773) 252-7670 |
| Lanan Products Inc 3909 W Harrison St, Chicago 60624 | (773) 826-8600 |
| Heinlein Supply Co 5516 N Elston Ave, Chicago 60630 | (773) 774-8616 |
| Washington Sheet Metal Co 411 E 69th St, Chicago 60637 | (773) 874-5538 |
| Viking Metal Cabinet Co 5321 W 65th St, Chicago 60638 | (708) 594-1111 |
| Luma Metalcraft Inc 1930 N Leclaire Ave, Chicago 60639 | (773) 804-9400 |
| Pinter Sheet Metal Works Glass 1953 N Latrobe Ave, Chicago 60639 | (773) 745-9220 |
| Midwest Metal Works 6025 N Keystone Ave, Chicago 60646 | (773) 866-1010 |
| Versa-Fab Inc 4415 W Rice St, Chicago 60651 | (773) 342-0001 |
| Sheet Metal Specialists Inc 3323 W Columbus Ave, Chicago 60652 | (773) 776-2265 |