| Business Name | Address | |
| Engelstad Electric | 1215 S Dakota St Milbank, SD 57252 |
 |
| Allied Service | 301 W 3rd Ave Milbank, SD 57252 |
|
| Whetstone Valley Elec Co-Op | E Highway 12 Milbank, SD 57252 |
|
| KENS Electric | 514 High St Big Stone City, SD 57216 |
|
| Dockter's Electric | 2715 Sioux Conifer Rd Watertown, SD 57201 |
|