| Relationships | Role | Relationship Start | Relationship End |
| Deilmann Haniel Gmbh | Parent | 12/31/1985 | 10/1/1998 |
| Frontier-Kemper Constructors, Inc. | Subsidary | 12/31/1986 | 12/30/1988 |
| Frontier-Kemper Constructors, Inc. | Subsidary | 12/31/1985 | 12/30/1986 |
| Relationships | Role | Relationship Start | Relationship End |
| Deilmann Haniel Gmbh | Parent | 12/31/1985 | 10/1/1998 |
| Frontier-Kemper Constructors, Inc. | Subsidary | 12/31/1986 | 12/30/1988 |
| Frontier-Kemper Constructors, Inc. | Subsidary | 12/31/1985 | 12/30/1986 |