| Business Name | Address | |
| Humboldt County Rural Elec Co | 13th St S Humboldt, IA 50548 |
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| Detrick Electric | 22 River Oaks Humboldt, IA 50548 |
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| R & G Electric Inc | 2110 10th Ave N Humboldt, IA 50548 |
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| Virlin Pagel Electrical Contr | 1883 140th St Clare, IA 50524 |
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| Rog's Electric Svc | 804 Oak St Rolfe, IA 50581 |
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