| Business | Phone |
| Gnb Ind Battery Co 3950 Sussex Ave, Aurora 60504 | (630) 862-2712 |
| Nawrocki Systems Inc 820 Audubon Ct, Aurora 60506 | (630) 896-6160 |
| Crane Dorray Inc 1585 Beverly Ct, Aurora 60502 | (630) 499-9646 |
| Houston Wire & Cable Co 2453 Prospect Dr, Aurora 60502 | (630) 871-2200 |
| Guardian Angel Technology 19 S Broadway, Aurora 60505 | (630) 892-2747 |