| Business Name | Address | |
| Huisman Lock & Key & Books | 621 4th Ave Sheldon, IA 51201 |
 |
| Siebring Electronic Co | Po Box 36 George, IA 51237 |
|
| Coffman'S Locksmith Shop | 1305 13th Ave W Spencer, IA 51301 |
|
| Holmes Lock & Safe Co | 1415 4th Ave E Spencer, IA 51301 |
|
| Dave'S Lock & Security | 136 4th Ave Ne Sioux Center, IA 51250 |
|