| MOESBY HANDEL A/S CVR 10580072 | BoardBoard of Directors | 1986 – 1994 | — | Dissolved |
| DBE AF 2/12 1998 A/S CVR 11386709 | OtherFounder | 1987 – 1999 | — | Dissolved |
| Roust Element A/S CVR 35480188 | BoardBoard of Directors | 2013 – 2019 | — | Active |
| ROUST HOLDING A/S CVR 12607040 | OtherFounder | 1988 – 2000 | — | Dissolved |
| DANHAUS CONSTRUCTION A/S CVR 13964432 | BoardBoard of Directors | 1990 – 1995 | — | Dissolved |
| MPS TRADING A/S CVR 14738444 | BoardBoard of Directors | 1990 – 1999 | — | Dissolved |
| ROUST INVEST ApS CVR 14824146 | ManagementManagement | 1999 – 2004 | — | Dissolved |
| ES KONSTRUKTION A/S CVR 15150777 | BoardBoard of Directors | 1991 – 1999 | — | Dissolved |
| CIMBER BAU ApS CVR 15609435 | BoardBoard of Directors | 1991 – 1999 | — | Dissolved |
| A/S ROUST HUSE CVR 15731397 | BoardBoard of Directors | 1992 – 2006 | — | Dissolved |
| WOODEN STRUCTURES A/S CVR 15997737 | BoardBoard of Directors | 1992 – 1994 | — | Dissolved |
| VIND HUSE ApS CVR 17443208 | BoardBoard of Directors | 1994 – 1998 | — | Dissolved |
| ROUST SPÆR A/S CVR 20652470 | BoardBoard of Directors | 1999 – 2013 | — | Dissolved |
| VORDINGBORG INVEST A/S CVR 21594008 | BoardBoard of Directors | 1999 – 2025 | — | Dissolved |
| A/S ROUST SAVVÆRK CVR 21527688 | BoardBoard of Directors | 1972 – 2004 | — | Dissolved |
| BLÅVAND VEST A/S CVR 26061040 | BoardBoard of Directors | 2001 – 2007 | — | Dissolved |
| RØDEKRO INVEST II A/S CVR 30173767 | BoardBoard of Directors | 2010 – 2012 | — | Dissolved |
| ROUST BYGGEKOMPONENT EXPORT A/S CVR 64955314 | BoardBoard of Directors | 1981 – 1988 | — | Dissolved |
