| Business | Phone |
| Bill Casey Electric Sales Inc 1001 Industrial Dr, Bensenville 60106 | (630) 860-3600 |
| Frontier Electric Supply 451 Frontier Way, Bensenville 60106 | (630) 595-8730 |
| Electrical Marketing Group Inc 798 Maple Ln, Bensenville 60106 | (630) 860-9556 |