| VIKING SPV AS CVR 998496438 | BoardBoard of Directors | Siden 2014 | — | Aktiv |
| NITTAVATNET HYTTEFORENING CVR 926430408 | BoardBoard of Directors | Siden 2023 | — | Aktiv |
| JOHS J SYLTERN AS CVR 816510872 | BoardBoard of Directors | Siden 2021 | — | Aktiv |
| SG ANLEGGSPARK AS CVR 911942046 | BoardBoard of Directors | Siden 2023 | — | Aktiv |
| JOHS J SYLTERN AS CVR 914626080 | BoardBoard of Directors | Siden 2021 | — | Aktiv |
| SØBERG ANLEGGSPARK AS CVR 916120575 | BoardBoard of Directors | Siden 2021 | — | Aktiv |
| BERG OPPMÅLING AS CVR 921031289 | BoardChairman | Siden 2021 | — | Aktiv |
| SÅ ANLEGGSPARK AS CVR 923390227 | BoardChairman | Siden 2021 | — | Aktiv |
| SYLTERN ANLEGGSPARK AS CVR 929293495 | BoardBoard of Directors | Siden 2022 | — | Aktiv |
| NORD-FUND AS CVR 932272199 | BoardChairman | Siden 2025 | — | Aktiv |
| ØYSTEIN SYLTERN AS CVR 989025554 | BoardBoard of Directors | Siden 2021 | — | Aktiv |
| SYLTERN MASKIN AS CVR 996824810 | ManagementChief Executive Officer | Siden 2011 | — | Aktiv |
| SG ENTREPRENØR AS CVR 997395735 | OtherDeputy Member | Siden 2022 | — | Aktiv |
| KLETT EIENDOM AS CVR 997933753 | BoardChairman | Siden 2021 | — | Aktiv |
| JV SKANSKA SYLTERN ANS CVR 932564696 | BoardBoard of Directors | Siden 2023 | — | Aktiv |
