| Relationships | Role | Relationship Start | Relationship End |
| Dbfic, Inc. | Parent | 7/1/2016 | |
| Dbfic, Inc. | Parent | 12/17/2013 | 12/18/2013 |
| Bt Vordertaunus (Luxembourg), S.A.R.L. | Parent | 12/14/2007 | 12/16/2013 |
| Bt Vordertaunus (Luxembourg), S.A.R.L. | Parent | 5/1/1998 | 1/31/2001 |
| Bt Maulbronn Gmbh | Subsidary | 7/1/2016 | |
| Bt Maulbronn Gmbh | Subsidary | 12/14/2007 | 12/18/2013 |
| Bt Finance L.P. | Subsidary | 12/14/2007 | 7/28/2009 |
| Bt Maulbronn Gmbh | Subsidary | 1/1/2001 | 1/31/2001 |
| Bt Vordertaunus Gmbh | Subsidary | 5/1/1998 | 12/30/2000 |