| Slottsvallen Fastighetsförvaltning CVR 4806261691 | OtherStakeholder | Since 2010 | — | Active |
| Westbarn Centrum Fastigheter AB CVR 5562284603 | BoardBoard of Directors | Since 2022 | — | Active |
| Westbarn Invest AB CVR 5563087575 | BoardBoard of Directors | Since 2020 | — | Active |
| Westbarn Invest Aktiebolag CVR 5563599256 | BoardBoard of Directors | Since 2023 | — | Dissolved |
| Westerbergs Kustbostäder AB CVR 5567226146 | BoardBoard of Directors | Since 2021 | — | Active |
| Westbarn Värdepapper AB CVR 5568313851 | BoardBoard of Directors | Since 2020 | — | Active |
| Kungshem AB CVR 5568313869 | BoardBoard of Directors | Since 2020 | — | Active |
| Westbarn Holding AB CVR 5568313877 | BoardBoard of Directors | Since 2020 | — | Active |
| Lars Westerberg AB CVR 5568942527 | BoardBoard of Directors | Since 2022 | — | Active |
| Westbarn Cityfastigheter 2 AB CVR 5568967441 | BoardBoard of Directors | Since 2019 | — | Dissolved |
| Westbarn Cityfastigheter AB CVR 5569208522 | BoardBoard of Directors | Since 2021 | — | Active |
| Westbarn Barnhemmet 1 AB CVR 5590217179 | BoardBoard of Directors | Since 2022 | — | Dissolved |
| Westbarn Borgaren 15 AB CVR 5590318563 | BoardBoard of Directors | Since 2022 | — | Dissolved |
| Enen 11 AB CVR 5592531734 | BoardBoard of Directors | Since 2020 | — | Dissolved |