| Company | Role | Period | Ownership | Status |
|---|---|---|---|---|
| ØSTERMARK ENTREPRENØRFORRETNING A/S CVR 24212173 | OtherFounder | Since 1999 | — | Active |
| ØSTERMARK HOLDING ApS CVR 25476727 | OtherFounder | Since 2000 | — | Active |
| Y-MatTec A/S CVR 42277118 | BoardBoard of Directors | Since 2026 | — | Active |
| JDH EJENDOMME, STRUER ApS CVR 36429925 | ManagementManagement | Since 2014 | — | Active |
| Dorrit 2017 ApS CVR 39105276 | ManagementManagement | Since 2017 | — | Active |
| TJ Værkstedsservice ApS CVR 43030868 | ManagementManagement | Since 2022 | — | Active |
| ØSTERMARK GROUTING A/S CVR 34476195 | BoardBoard of Directors | Since 2024 | — | Active |
| Østermark Group ApS CVR 37402524 | ManagementManagement | Since 2016 | — | Active |
| JTTJ Holding ApS CVR 42463612 | OtherFounder | Since 2021 | — | Active |
| JDH Udlejning ApS CVR 40618295 | OtherFounder | Since 2019 | — | Active |
| Østermark Ejendomme ApS CVR 33360339 | ManagementManagement | Since 2017 | — | Active |
| Company | Role | Period | Ownership | Status |
|---|---|---|---|---|
| JDH Udlejning v. John Henriksen CVR 19490149 | OtherStakeholder | 1985 – 2019 | — | Active |
| LANGHØJ VINDMØLLELAUG I/S CVR 28079753 | OtherStakeholder | 1995 – 2000 | — | Active |
| VENØ BUGT INVEST A/S CVR 29626456 | OtherFounder | 2006 – 2010 | — | Dissolved |
| VENØ BUGT INVEST 2 A/S CVR 29834555 | OtherFounder | 2007 – 2010 | — | Dissolved |
| BOUNUM MASKINSTATION A/S CVR 29180636 | BoardBoard of Directors | 2015 – 2023 | — | Active |
| Østermark Holding Struer ApS CVR 39049481 | OtherFounder | 2017 – 2017 | — | Dissolved |
| John Holding ApS af 2017 CVR 39105268 | ManagementManagement | 2017 – 2019 | — | Dissolved |
| ØSTERMARK MASKINER ApS CVR 31755417 | ManagementManagement | 2008 – 2024 | — | Active |
| Asp og Omegns Invest ApS CVR 40253149 | BoardBoard of Directors | 2019 – 2020 | — | Active |
| HVIDBERG A/S CVR 27200265 | BoardChairman | 2013 – 2025 | — | Active |
| ØSTERMARK INVEST ApS CVR 32059147 | ManagementManagement | 2014 – 2025 | — | Active |
| Person | Role | Shared companies | Profile |
|---|---|---|---|
| Audit | 2companies | View profile | |
| Board of Directors | 1company | View profile | |
| Management | 1company | View profile | |
| Chairman | 1company | View profile | |
| Management | 1company | View profile |