| Business Name | Address | |
| Marquardt Electric Inc | 1018 3rd Ave NW Watertown, SD 57201 |
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| Dupont Electric Inc | 419 4th St SW Watertown, SD 57201 |
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| Engelstad Electric | 622 Arrow Ave NE Watertown, SD 57201 |
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| Dockter's Electric | 2715 Sioux Conifer Rd Watertown, SD 57201 |
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| Miller Electric Inc | 601 4th St SW Watertown, SD 57201 |
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