| Business Name | Address | |
| Underwood Electric | PO Box 44 New Underwood, SD 57761 |
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| Al Sutton Electric | 2017 E Highway 44 Rapid City, SD 57703 |
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| Checker Electric Inc | 1733 1/2 E Tallent St Rapid City, SD 57703 |
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| Muellenberg Electric | 1080 Kennel Dr Rapid City, SD 57703 |
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| American Electric | 1525 E Centre St Rapid City, SD 57703 |
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