| Business | Phone |
| Ge Zenith Controls 830 W 40th St, Chicago 60609 | (773) 299-6600 |
| Gus Berthold Electric Co 1900 W Carroll Ave, Chicago 60612 | (312) 243-5767 |
| S & C Employee Credit Union 6601 N Ridge Blvd, Chicago 60626 | (773) 338-1000 |
| Panatrol Corp 7481 S Sayre Ave, Chicago 60638 | (708) 496-3080 |
| J & A Sheet Metal Shop Inc 1800 N Campbell Ave, Chicago 60647 | (773) 276-3739 |