| Company | Role | Period | Ownership | Status |
|---|---|---|---|---|
| ULSTEIN MARINE TECHNOLOGY AS CVR 941278493 | BoardChairman | Since 2020 | — | Active |
| ULSTEIN NÆRINGSFORUM CVR 918610928 | BoardBoard of Directors | Since 2019 | — | Active |
| ISLAND OCEAN AS CVR 927475308 | BoardChairman | Since 2022 | — | Active |
| OSNESET AS CVR 975374092 | BoardBoard of Directors | Since 2018 | — | Active |
| ULSTEIN TECHNOLOGY AS CVR 984319401 | OwnerLegal Owner | Since 2022 | 10.0% | Active |
| YTRE LUNDE GARD VED MORTEN ULSTEIN CVR 835982572 | OwnerOwner | Since 2025 | — | Active |
| BOREA HOLDING AS CVR 985917108 | BoardChairman | Since 2012 | — | Active |
| BORGSTEIN AS CVR 824783802 | ManagementChief Executive Officer | Since 2020 | — | Active |
| MIMAR BORGSTEIN AS CVR 828250922 | BoardChairman | Since 2021 | — | Active |
| BORGSTEIN HOLDING AS CVR 924701854 | ManagementChief Executive Officer | Since 2020 | — | Active |
| NORGES REDERIFORBUND CVR 971436190 | BoardBoard of Directors | Since 2022 | — | Active |
| BORGSTEIN SKIPSINVEST AS CVR 977455308 | BoardChairman | Since 2007 | — | Active |
| BORGSTEIN INVEST AS CVR 979196377 | ManagementChief Executive Officer | Since 2000 | — | Active |
| MIMAR AS CVR 980021823 | OtherContact Person | Since 1998 | — | Active |
| BORGSTEIN VERDI AS CVR 980104079 | ManagementChief Executive Officer | Since 2000 | — | Active |
| ISLAND OFFSHORE SHIPPING AS CVR 982838800 | BoardChairman | Since 2007 | — | Active |
| SUNNMØRE GOLF AS CVR 983020895 | BoardBoard of Directors | Since 2022 | — | Active |
| ISLAND OFFSHORE V AS CVR 983188419 | BoardChairman | Since 2020 | — | Active |
| ULSTEINVIK UTVIKLING AS CVR 988059242 | BoardChairman | Since 2012 | — | Active |
| SNEINGEN AS CVR 989995189 | BoardChairman | Since 2006 | — | Active |
| ISLAND OFFSHORE INVEST AS CVR 991417702 | BoardChairman | Since 2020 | — | Active |
| GREEN ISLAND CONDOR AS CVR 929265521 | BoardChairman | Since 2022 | — | Active |
| GREEN ISLAND SHIPHOLDING AS CVR 926829408 | BoardChairman | Since 2021 | — | Active |
| GREEN ISLAND CHAMPION AS CVR 927293994 | BoardChairman | Since 2021 | — | Active |
| GREEN ISLAND PSV AS CVR 927294346 | BoardChairman | Since 2021 | — | Active |
| GREEN ISLAND OI III AS CVR 927305569 | BoardChairman | Since 2021 | — | Active |
| ISLAND OFFSHORE X AS CVR 887254982 | BoardChairman | Since 2006 | — | Active |
| ISLAND OFFSHORE XII AS CVR 888271392 | BoardChairman | Since 2005 | — | Active |
| ISLAND OFFSHORE INTERNATIONAL SHIPPING AS CVR 914405025 | BoardChairman | Since 2015 | — | Active |
| ISLAND NAVIGATOR HOLDING AS CVR 915143407 | BoardChairman | Since 2015 | — | Active |
| ISLAND NAVIGATOR HOLDING KS CVR 915143415 | BoardChairman | Since 2021 | — | Active |
| ISLAND DRILLING COMPANY AS CVR 918375651 | BoardChairman | Since 2017 | — | Active |
| ISLAND DILIGENCE AS CVR 920421091 | BoardChairman | Since 2023 | — | Active |
| ISLAND VICTORY AS CVR 920718590 | BoardChairman | Since 2021 | — | Active |
| ISLAND DRILLING CREWING AS CVR 921499906 | BoardChairman | Since 2018 | — | Active |
| ISLAND DEFENDER AS CVR 922593116 | BoardChairman | Since 2021 | — | Active |
| ISLAND DISCOVERER AS CVR 924922494 | BoardChairman | Since 2022 | — | Active |
| GREEN ISLAND DRAGON AS CVR 932590611 | BoardChairman | Since 2023 | — | Active |
| NOR MARINE SERVICE AS CVR 933737128 | BoardBoard of Directors | Since 2025 | — | Active |
| ISLAND EVOLUTION AS CVR 935857015 | BoardChairman | Since 2025 | — | Active |
| ULSTEIN GROUP ASA CVR 980489876 | OwnerLegal Owner | Since 2024 | 0.0% | Active |
| ISLAND OFFSHORE III KS CVR 982411408 | BoardChairman | Since 2017 | — | Active |
| ISLAND OFFSHORE MANAGEMENT AS CVR 984285310 | BoardChairman | Since 2022 | — | Active |
| BJORLIGARD UTBYGGING AS CVR 986046488 | BoardChairman | Since 2020 | — | Active |
| ISLAND OFFSHORE VIII AS CVR 987156783 | BoardChairman | Since 2017 | — | Active |
| ISLAND OFFSHORE VIII KS CVR 987156805 | BoardChairman | Since 2017 | — | Active |
| ISLAND OFFSHORE X KS CVR 987255188 | BoardChairman | Since 2009 | — | Active |
| ISLAND OFFSHORE XI AS CVR 987845325 | BoardChairman | Since 2017 | — | Active |
| IDC HOLDING AS CVR 989734229 | BoardChairman | Since 2017 | — | Active |
| ISLAND OFFSHORE SHIPHOLDING LP CVR 990035903 | OtherContact Person | Since 2023 | — | Active |
| ISLAND DRILLING MANAGEMENT AS CVR 992448636 | BoardChairman | Since 2018 | — | Active |
| ISLAND PIONEER KS CVR 992611588 | BoardChairman | Since 2023 | — | Active |
| ISLAND PIONEER AS CVR 992611634 | BoardChairman | Since 2016 | — | Active |
| ISLAND OFFSHORE XII SHIP AS CVR 994289764 | BoardChairman | Since 2021 | — | Active |
| AMNOR BERGEN AS CVR 994787365 | BoardBoard of Directors | Since 2009 | — | Active |
| AMNOR BERGEN KS CVR 994787381 | BoardBoard of Directors | Since 2012 | — | Active |
| ISLAND VENTURES 4 AS CVR 997571290 | BoardChairman | Since 2012 | — | Active |
| ISLAND EXPLORER AS CVR 930455555 | BoardChairman | Since 2022 | — | Active |
| CAINHILL SHIPPING LIMITED CVR 936710573 | ManagementChief Executive Officer | Since 2026 | — | Active |
| Company | Role | Period | Ownership | Status |
|---|---|---|---|---|
| ULMATEC SKIPSSERVICE AS CVR 931955330 | BoardBoard of Directors | 2020 – 2023 | — | Active |
| ULMATEC HANDLING SYSTEMS AS CVR 986729860 | BoardBoard of Directors | 2021 – 2024 | — | Active |
| HOVDEN KLUBBHUS AS CVR 876723212 | BoardBoard of Directors | 2019 – 2023 | — | Active |
| CENTRALEIENDOMMEN AS CVR 981563816 | BoardBoard of Directors | 2010 – 2023 | — | Active |
| BOREA AS CVR 884693802 | BoardChairman | 2022 – 2024 | — | Active |
| BRATTØRA EIENDOM AS CVR 967293601 | BoardChairman | 2006 – 2023 | — | Active |
| TIOS AS CVR 988626392 | BoardBoard of Directors | 2021 – 2021 | — | Active |
| Person | Role | Shared companies | Profile |
|---|---|---|---|
| Chairman | 3companies | View profile | |
| Board of Directors | 3companies | View profile | |
| Deputy Member | 2companies | View profile | |
| Chief Executive Officer | 1company | View profile | |
| Chief Executive Officer | 1company | View profile |