| Business | Phone |
| Interstate Tool Works 714 E Fullerton Ave, Glendale Heights 60139 | (630) 469-7750 |
| Jnr Custo-Matic Screw Inc 200 W Lake Dr, Glendale Heights 60139 | (630) 260-3662 |
| Nifast Corp 701 Regency Dr, Glendale Heights 60139 | (630) 539-0097 |
| Nova Machine Products/Nsa 540 Windy Point Dr, Glendale Heights 60139 | (630) 545-0011 |
| Screws Industries 301 High Grove Blvd, Glendale Heights 60139 | (630) 539-9200 |
| Zenitools Inc 170 N Brandon Dr, Glendale Heights 60139 | (630) 539-0116 |