| ARENDAL BYGG & MONTASJE AS CVR 919318775 | ManagementChief Executive Officer | Siden 2025 | — | Aktiv |
| J.ANTONSEN INVEST AS CVR 926776835 | ManagementChief Executive Officer | Siden 2021 | — | Aktiv |
| ARENDAL TORV AS CVR 930798312 | BoardBoard of Directors | Siden 2023 | — | Aktiv |
| ARENDAL NYBYGG AS CVR 933523519 | ManagementChief Executive Officer | Siden 2024 | — | Aktiv |
| J. ANTONSEN MASKIN OG SALG CVR 998168805 | OwnerOwner | Siden 2012 | — | Aktiv |
| MIKROBAGERIET GRENSTØL AS CVR 935129664 | BoardChairman | Siden 2025 | — | Aktiv |
| S.A.B. UTVIKLING AS CVR 935182670 | BoardChairman | Siden 2025 | — | Aktiv |
| JHF EIENDOM AS CVR 921715528 | BoardChairman | Siden 2025 | — | Aktiv |
| GRENSTØL HANDEL AS CVR 823664672 | BoardBoard of Directors | Siden 2021 | — | Aktiv |
| A & G BYGG OG EIENDOM AS CVR 916653905 | ManagementChief Executive Officer | Siden 2016 | — | Aktiv |
| 3STAR RC KLUBB CVR 928551067 | OtherBusiness Manager | Siden 2022 | — | Aktiv |
