| HYTECH NORSE OFFSHORE AS CVR 882106012 | BoardBoard of Directors | Since 2023 | — | Active |
| HYTECH RENTAL AS CVR 911916134 | BoardChairman | Since 2013 | — | Active |
| REFUEL JV 270 AS CVR 913129318 | BoardChairman | Since 2015 | — | Active |
| NORSE CUTTING AS CVR 915701868 | BoardBoard of Directors | Since 2016 | — | Active |
| MTD NORDIC AS CVR 916132859 | BoardChairman | Since 2017 | — | Active |
| HYTECH ACCESS & INSPECTION AS CVR 929118251 | ManagementChief Executive Officer | Since 2023 | — | Active |
| HYTECH CONSULTANTS AS CVR 929612612 | BoardChairman | Since 2022 | — | Active |
| HYTECH ENGINEERING & SERVICES AS CVR 979484127 | BoardChairman | Since 2017 | — | Active |
| HYTECH TRADING AS CVR 988283002 | BoardChairman | Since 2022 | — | Active |
| BR. ERGA AS CVR 998537665 | BoardChairman | Since 2012 | — | Active |
| HYTECH PERSONELL AS CVR 986906800 | ManagementChief Executive Officer | Since 2023 | — | Active |
| HYTECH ENERGY SERVICES AS CVR 991741992 | BoardChairman | Since 2016 | — | Active |
| VÅR ENERGI ASA CVR 919160675 | OwnerLegal Owner | Since 2025 | 0.0% | Active |
| AKVA GROUP ASA CVR 931693670 | OwnerLegal Owner | Since 2025 | 0.0% | Active |
| HYTECH AS CVR 989199048 | BoardChairman | Since 2012 | — | Active |
