| Business | Phone |
| Power & Lighting Systems Inc 4420 Soo Line Ln, Schiller Park 60176 | (847) 233-0900 |
| M T Power Electric 4553 Scott St, Schiller Park 60176 | (847) 233-0654 |
| Pro-Tech 4252 Kolze Ave, Schiller Park 60176 | (847) 671-2801 |
| Trinet Communications Inc 5124 Pearl St, Schiller Park 60176 | (847) 671-4522 |