| Business Name | Address | |
| Smith Electric | 50 N Marble St # 1 Dunkerton, IA 50626 |
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| Sadler Electric | 1148 Blackhawk Buchanan Ave Fairbank, IA 50629 |
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| Readlyn Farm Automation | 418 E 1st St Readlyn, IA 50668 |
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| Frost Electric | 407 E Mount Vernon Rd Waterloo, IA 50703 |
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| Art Carter & Son Electric | 725 Adams St Waterloo, IA 50703 |
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