| Business Name | Address | |
| Underwood Electric | PO Box 44 New Underwood, SD 57761 |
 |
| Paul's Electric | 525 Line Rd Box Elder, SD 57719 |
|
| Checker Electric Inc | 1733 1/2 E Tallent St Rapid City, SD 57703 |
|
| Muellenberg Electric | 1080 Kennel Dr Rapid City, SD 57703 |
|
| American Electric | 1525 E Centre St Rapid City, SD 57703 |
|