| Business | Phone |
| Ena Ironworks 4214 W Taylor St, Chicago 60624 | (773) 265-2737 |
| Chicago Steel Erectors 9317 S May St, Chicago 60620 | (773) 238-1706 |
| Drmac Iron & Boiler Works 4559 N Elston Ave, Chicago 60630 | (773) 283-3334 |
| Davis & Sons Iron Works 259 N Pulaski Rd, Chicago 60624 | (773) 722-4437 |
| Corliss Ornamental Iron 5621 S Wentworth Ave, Chicago 60621 | (773) 374-5511 |
| Metal Management 2500 S Paulina St, Chicago 60608 | (773) 650-6400 |
| Hercules Iron Works Inc 846 W Superior St, Chicago 60622 | (312) 226-2405 |