| Business | Phone |
| A B Repair Television Car Str 3329 S Halsted St, Chicago 60608 | (773) 376-8297 |
| Accu-Tronix 1142 W Bryn Mawr Ave, Chicago 60660 | (773) 989-1800 |
| Alex Electronics 1854 W 47th St, Chicago 60609 | (773) 843-1860 |
| Alextronics Systems 1869 E 71st St, Chicago 60649 | (773) 363-5000 |
| Amaro Electronics 2248 W Cermak Rd, Chicago 60608 | (773) 254-6323 |
| American Electronic 4535 N Sheridan Rd, Chicago 60640 | (773) 275-6700 |
| Anzortech Inc 5 S Wabash Ave, Chicago 60603 | (312) 726-5103 |
| Cameras Electronics Ents 3939 N Clarendon Ave, Chicago 60613 | (773) 477-1459 |
| Electronic For Less 3501 W Lawrence Ave, Chicago 60625 | (773) 588-9000 |
| Electronic Literature Orgnztn 4401 N Ravenswood Ave, Chicago 60640 | (773) 769-3540 |
| Grand Kahn Electric 1 S Wacker Dr, Chicago 60606 | (312) 333-4902 |