| BO TVEDEN DEVELOPMENT A/S CVR 11743501 | ManagementChief Executive Officer | 2001 – 2005 | — | Dissolved |
| BTS SOLUTIONS A/S CVR 21135089 | ManagementChief Executive Officer | 2001 – 2005 | — | Dissolved |
| HOLMRIS DK A/S CVR 21862290 | BoardBoard of Directors | 2001 – 2002 | — | Dissolved |
| LOGICTREE EUROPE A/S CVR 25558669 | BoardBoard of Directors | 2001 – 2006 | — | Dissolved |
| Elemental Water ApS CVR 45607887 | ManagementManagement | 2025 – 2025 | — | Active |
| Cherry Tree Valley ApS CVR 43717065 | ManagementManagement | 2022 – 2024 | — | Dissolved |
| Green Hydrogen Systems A/S CVR 30548701 | ManagementChief Executive Officer | 2014 – 2020 | — | Active |
| Selskabet Solutions ApS CVR 26211557 | ManagementChief Executive Officer | 2012 – 2013 | — | Active |
| SUN CHEMICAL INKS A/S CVR 83104813 | BoardBoard of Directors | 1997 – 2001 | — | Active |
| Umwelt Energy ApS CVR 43722824 | ManagementChief Executive Officer | 2024 – 2024 | — | Dissolved |
