| Business Name | Address | |
| Beebout Electric | 318 S Columbia St Columbia, IA 50057 |
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| R D Sullivan Electric Contr | 793 Lucas St Knoxville, IA 50138 |
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| Van Donsler Electric | 606 E Robinson St Knoxville, IA 50138 |
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| Advanced Electrical | 105 N 6th St Knoxville, IA 50138 |
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| KIRK Electrical Svc | 221 E Main St Knoxville, IA 50138 |
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