| Relationships | Role | Relationship Start | Relationship End |
| Wesco Financial Corporation | Parent | 2/28/1979 | 12/26/1980 |
| Precision Steel Warehouse Inc Charlotte Service | Subsidary | 2/28/1979 | 12/26/1980 |
| Dupage Manufacturing Company | Subsidary | 2/28/1979 | 12/26/1980 |
| Precision Brand Products Inc | Subsidary | 2/28/1979 | 12/26/1980 |