| Relationships | Role | Relationship Start | Relationship End |
| Autania Ag Fur Industriebeteiligungen | Parent | 7/3/1992 | 12/30/1993 |
| Dresdner Bank Aktiengesellschaft | Parent | 12/31/1980 | 11/2/1983 |
| Deutsche Bank Aktiengesellschaft | Parent | 12/31/1980 | 3/31/1983 |
| Pittler Incorporated | Subsidary | 12/31/1980 | 3/31/1983 |