| Business | Phone |
| Dekan Athletic Equipment Corp 902 S Randall Rd C, Saint Charles 60174 | (630) 231-7740 |
| Mosedale Manufacturing Co 1407 S 12th St, Saint Charles 60174 | (630) 584-6370 |
| Dukane Intelligent Assembly 2900 Dukane Dr, Saint Charles 60174 | (630) 797-4900 |