| Business | Phone |
| Thomson Electrical Contracting 427 W Terra Ln, O Fallon 63366 | (636) 379-0310 |
| Reed Electric O Fallon 63366 | (636) 272-6445 |
| Metta Electric 8566 Highway N, O Fallon 63367 | (636) 936-8206 |
| M R Bathe Electric 1023 Cool Springs Industrial, O Fallon 63366 | (636) 240-7716 |
| Kirk's Electric Inc 1160 W Terra Ln, O Fallon 63366 | (636) 240-1661 |
| Electrical Concepts Inc 7 Plackemeier Dr, O Fallon 63366 | (636) 696-2974 |
| Dlr Electric 568 Broeker Ln, O Fallon 63366 | (636) 240-1576 |