| Business | Phone |
| Admiral Tool & Mfg Co 3700 N Talman Ave, Chicago 60618 | (773) 477-4300 |
| Alco Perforated Steel Supply 3636 S Kedzie Ave, Chicago 60632 | (773) 847-7778 |
| Alcon Tool & Mfg Co 5266 N Elston Ave, Chicago 60630 | (773) 545-8742 |
| Alden Manufacturing Co 8312 S South Chicago Ave, Chicago 60617 | (773) 734-6886 |
| All-American Mfg Co Inc 1839 N Long Ave, Chicago 60639 | (773) 622-7600 |
| Alpha Products Inc 5570 W 70th Pl, Chicago 60638 | (708) 594-3883 |
| General Machine & Tool Works 313 W Chestnut St, Chicago 60610 | (312) 337-2177 |
| General Machinery & Mfg Co 2634 N Keeler Ave, Chicago 60639 | (773) 235-3700 |
| Burger Tool & Mfg Co 9708 W Foster Ave, Chicago 60656 | (773) 992-3838 |
| C & C Can Co 1838 W Grand Ave, Chicago 60622 | (312) 421-2372 |
| C & L Key & Lock Surgeons 7357 S Coles Ave, Chicago 60649 | (773) 374-5800 |
| Cac 2515 W Jackson Blvd, Chicago 60612 | (312) 850-4032 |
| F B Williams Co 10017 S Claremont Ave, Chicago 60643 | (773) 233-0003 |
| Craft Metal Spinning 4351 N Normandy Ave, Chicago 60634 | (773) 685-4700 |
| Midwest Gold Stampers 1313 W Randolph St 201, Chicago 60607 | (312) 421-5253 |
| Wood Brothers Steel Stamping 2416 W Ogden Ave, Chicago 60608 | (312) 733-5820 |
| Chicago Edm Div 1126 W 40th St, Chicago 60609 | (773) 254-1214 |
| Johnston & Chapman Inc 2921 W Carroll Ave, Chicago 60612 | (773) 638-3209 |
| Ri-Del Manufacturing 1754 W Walnut St, Chicago 60612 | (312) 829-8720 |
| Intercom-Security Store 3765 N Wilton Ave, Chicago 60613 | (773) 528-4070 |
| Premier Metal Works Inc 1616 S Clinton St, Chicago 60616 | (312) 226-7414 |
| Sundstrom Pressed Steel Co 8030 S South Chicago Ave, Chicago 60617 | (773) 721-2237 |
| Precision Forming & Stamping 2419 W George St, Chicago 60618 | (773) 489-6868 |
| Lsa United Inc 2310 W 78th St, Chicago 60620 | (773) 476-2700 |
| Stumpfoll Tool & Mfg Co 1713 W Hubbard St, Chicago 60622 | (312) 733-2632 |
| Grenshaw 4545 W Lake St, Chicago 60624 | (773) 287-3232 |
| Liner Products 2027 N Major Ave, Chicago 60639 | (773) 622-0505 |
| William Dudek Mfg Co 4901 W Armitage Ave, Chicago 60639 | (773) 622-2727 |
| Kora Industries Inc 3612 N Kilbourn Ave, Chicago 60641 | (773) 725-4311 |
| Harrington & King Perforating 5655 W Fillmore St, Chicago 60644 | (773) 626-5725 |
| Laystrom Manufacturing Co 3900 W Palmer St, Chicago 60647 | (773) 342-4800 |
| Hub Manufacturing Co 1212 N Central Park Ave, Chicago 60651 | (773) 252-1373 |
| Triton Industries Inc 1020 N Kolmar Ave, Chicago 60651 | (773) 384-3700 |
| Metal Products 3057 N Rockwell St, Chicago 60618 | (773) 583-8106 |
| Mastercraft Metal Spinning 4141 W Kinzie St, Chicago 60624 | (773) 638-2577 |
| Hobson Bros 4940 W Lawrence Ave, Chicago 60630 | (773) 283-3600 |
| Reliable Perforating Co 5895 N Rogers Ave, Chicago 60646 | (773) 736-0601 |