| Business Name | Address | |
| O'Fallon Electric | 765 Lakeside Plz Lake St Louis, MO 63367 |
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| Electrical Concepts Inc | 7 Plackemeier Dr O Fallon, MO 63366 |
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| Thomson Electrical Contracting | 427 W Terra Ln O Fallon, MO 63366 |
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| Reed Electric | O Fallon, MO 63366 |
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| Kirk's Electric Inc | 1160 W Terra Ln O Fallon, MO 63366 |
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