| Stuckteknik Fastighetsförvaltning Aktiebolag CVR 5561982579 | BoardBoard of Directors | Since 2022 | — | Active |
| Arum i Arboga 2 AB CVR 5562457480 | BoardBoard of Directors | Since 2024 | — | Active |
| Alholmen förvaltning AB CVR 5565693420 | BoardBoard of Directors | Since 2025 | — | Active |
| Lesconil Aktiebolag CVR 5566070081 | BoardBoard of Directors | Since 2022 | — | Active |
| Radiatus AB CVR 5566181292 | BoardDeputy Board Member | Since 2022 | — | Active |
| Fastigheter i Tollare AB CVR 5567645899 | BoardBoard of Directors | Since 2019 | — | Dissolved |
| Runö Park Fastighets AB CVR 5567924831 | BoardBoard of Directors | Since 2021 | — | Active |
| Fastigheten Stockholm Oljan 23 AB CVR 5568105802 | BoardBoard of Directors | Since 2019 | — | Dissolved |
| Stockholm JN Holding AB CVR 5568112212 | BoardBoard of Directors | Since 2022 | — | Active |
| Mälardalen Bostäder AB CVR 5568211378 | BoardBoard of Directors | Since 2025 | — | Active |
| Kopplingsboxen 1 AB CVR 5569671364 | BoardBoard of Directors | Since 2019 | — | Dissolved |
| Stanwood - Haley Properties AB CVR 5569768699 | BoardBoard of Directors | Since 2022 | — | Active |
| Testardo AB CVR 5590024468 | BoardBoard of Directors | Since 2020 | — | Dissolved |
| Fastigheten Hövdingagatan 33-35 Aktiebolag CVR 5590055082 | BoardDeputy Board Member | Since 2019 | — | Dissolved |
| Fastigheten Storsjövägen 34-42 Aktiebolag CVR 5590059514 | BoardDeputy Board Member | Since 2019 | — | Dissolved |
| Arum Fastigheter AB CVR 5590076930 | BoardBoard of Directors | Since 2022 | — | Active |
| Karlbergs Fastigheter AB CVR 5590078761 | BoardBoard of Directors | Since 2022 | — | Active |
| Stockholm Idun AB CVR 5590420336 | BoardBoard of Directors | Since 2022 | — | Active |
| Boitälje AB CVR 5590496708 | BoardBoard of Directors | Since 2022 | — | Active |
| Årstafältet förvaltning AB CVR 5590621792 | BoardBoard of Directors | Since 2022 | — | Active |
| Årsta storsjö Förvaltning AB CVR 5590621826 | BoardBoard of Directors | Since 2022 | — | Active |
| Fastighets AB Kvarnvattnet 2 CVR 5591034045 | BoardBoard of Directors | Since 2022 | — | Active |
| Boost realestate AB CVR 5591615439 | BoardBoard of Directors | Since 2022 | — | Active |
| Hjärnbarken Invest AB CVR 5591722862 | BoardBoard of Directors | Since 2021 | — | Dissolved |
| Arum i Eskilstuna AB CVR 5592028756 | BoardBoard of Directors | Since 2022 | — | Active |
| Åsöoljan Holding AB CVR 5592028772 | BoardBoard of Directors | Since 2022 | — | Active |
| Söderliljan Holding AB CVR 5592078405 | BoardBoard of Directors | Since 2022 | — | Active |
| Täljeliljan AB CVR 5592078413 | BoardBoard of Directors | Since 2022 | — | Active |
| Fastighets AB Svedjelandet CVR 5592088941 | BoardBoard of Directors | Since 2022 | — | Active |
| Stockholm Rustika Studentbostäder AB CVR 5592211394 | BoardDeputy Board Member | Since 2022 | — | Active |
| Stockholm Konvus AB CVR 5592775026 | BoardBoard of Directors | Since 2022 | — | Active |
| Ösmo Park Förvaltning AB CVR 5593091688 | BoardBoard of Directors | Since 2022 | — | Active |
| Omsö Förvaltning AB CVR 5593315889 | BoardBoard of Directors | Since 2022 | — | Dissolved |
| Arum i Arboga 1 AB CVR 5593449852 | BoardBoard of Directors | Since 2024 | — | Active |
| Arum i Köping AB CVR 5593491573 | BoardBoard of Directors | Since 2022 | — | Active |
| Fastigheter i Köping AB CVR 5593552630 | BoardBoard of Directors | Since 2022 | — | Dissolved |
| Arum i Kungsör AB CVR 5594365487 | BoardBoard of Directors | Since 2023 | — | Active |
| Arum i Nyköping AB CVR 5595201822 | BoardBoard of Directors | Since 2025 | — | Active |
| Bröderna och Hampus AB CVR 5595680744 | BoardBoard of Directors | Since 2026 | — | Active |