| Business | Phone |
| Brian's Electric & Trenching 800 E 11th St, Yankton 57078 | (605) 665-9254 |
| Tom's Electric Yankton 57078 | (605) 665-6532 |
| Drotzmann Electric 623 Augusta Cir, Yankton 57078 | (605) 665-8894 |
| Dykstra Electric Inc 1603 Locust St, Yankton 57078 | (605) 665-6719 |
| Gary R Johnson Electric Llp 214 Capital St, Yankton 57078 | (605) 665-5686 |
| Muth Electric Inc 1910 Summit St, Yankton 57078 | (605) 665-4543 |
| List Electric 2711 Pine St, Yankton 57078 | (605) 668-9430 |
| L & S Electric 1600 E 39th St, Yankton 57078 | (605) 665-6612 |