| KNUT PRESTNES HOLDING AS CVR 932332361 | BoardChairman | Siden 2023 | — | Aktiv |
| HELGE PRESTNES INVEST AS CVR 993077828 | BoardChairman | Siden 2008 | — | Aktiv |
| ASTRID PRESTNES NORDTORP INVEST AS CVR 993077933 | BoardBoard of Directors | Siden 2014 | — | Aktiv |
| KARINA PRESTNES INVEST AS CVR 993077992 | ManagementChief Executive Officer | Siden 2008 | — | Aktiv |
| VIDAR PRESTNES INVEST AS CVR 993078557 | BoardChairman | Siden 2008 | — | Aktiv |
| HMR GROUP AS CVR 889365862 | BoardChairman | Siden 2006 | — | Aktiv |
| HMR VOSS AS CVR 887205302 | BoardBoard of Directors | Siden 2026 | — | Aktiv |
| TRESS EIENDOM AS CVR 932560496 | ManagementChief Executive Officer | Siden 2015 | — | Aktiv |
| PRESTNES HOLDING A/S CVR 947512358 | BoardChairman | Siden 1988 | — | Aktiv |
| HMR HYDEQ AS CVR 951143235 | BoardDeputy Chairman | Siden 2023 | — | Aktiv |
| PROTECH AS CVR 940889324 | BoardChairman | Siden 2024 | — | Aktiv |
| HMR MIKROMEKANIKK AS CVR 980372219 | BoardBoard of Directors | Siden 2026 | — | Aktiv |
| EQUINOR ASA CVR 923609016 | OwnerLegal Owner | Siden 2024 | 0.0% | Aktiv |
| TRIO IDRETTSLAG CVR 974249138 | BoardDeputy Chairman | Siden 2024 | — | Aktiv |
| HMR GROUP AS CVR 917965781 | BoardDeputy Chairman | Siden 2023 | — | Aktiv |
| HMR HUSNES AS CVR 977312795 | BoardBoard of Directors | Siden 2026 | — | Aktiv |
