| Business | Phone |
| Perfect Dimensions Inc 739 W Fullerton Ave, Addison 60101 | (630) 458-1134 |
| Double Disc Grinding 700 W Belden Ave, Addison 60101 | (630) 628-1665 |
| Grind-Lap Svc 1045 W National Ave, Addison 60101 | (630) 458-1111 |
| Hoeing Die & Mold Engraving 441 W Interstate Rd, Addison 60101 | (630) 543-0006 |
| Surface Finishes Co 39 W Official Rd, Addison 60101 | (630) 543-6682 |
| Tolerances Grinding Co 1020 W National Ave, Addison 60101 | (630) 543-6065 |
| Total Engineered Products Inc 908 S Westwood Ave, Addison 60101 | (630) 543-9006 |
| Vanguard Coatings 1420 Bernard Dr, Addison 60101 | (630) 628-8644 |