| Business Name | Address | |
| Efraimson Electric | RR 1 Box 133a Bryant, SD 57221 |
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| Gruenwald Electric | 101 5th Ave NE Clark, SD 57225 |
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| Arneson Electric | 709 Harvest St Lake Norden, SD 57248 |
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| Muth Electric Inc | 415 3rd Ave NW Watertown, SD 57201 |
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| Marquardt Electric Inc | 1018 3rd Ave NW Watertown, SD 57201 |
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