| Business | Phone |
| Allstate Saws & Machining 2675 White Oak Cir, Aurora 60502 | (630) 236-5507 |
| B & B Machining 24 Gastville St, Aurora 60503 | (630) 898-3009 |
| Worley Machining 601 W New York St 400, Aurora 60506 | (630) 801-9198 |
| Vulcan Repair & Machine 1022 Grace Ave, Aurora 60506 | (630) 897-0481 |
| Aldrich Machine Inc 320 Ne Industrial Dr, Aurora 60505 | (630) 264-9495 |
| Automation Design & Mfg Inc 841 S River St, Aurora 60506 | (630) 896-4206 |
| T & L Mfg Corp 1665 Dearborn Ave, Aurora 60505 | (630) 898-7100 |
| Share Machine Inc 719 Morton Ave, Aurora 60506 | (630) 906-1810 |
| Cyl-Tec 875 N Broadway, Aurora 60505 | (630) 966-0299 |
| Engelbrecht Machine Inc 1010 Grace Ave, Aurora 60506 | (630) 859-1454 |
| Flores Precision Products 413 Cleveland Ave, Aurora 60506 | (630) 264-2222 |
| Fox Valley Forge Co 138 Pierce St, Aurora 60505 | (630) 897-8616 |
| Quantum Precision Inc 2760 Beverly Dr, Aurora 60502 | (630) 692-1545 |