| Kneippbadens Fastigheter Aktiebolag CVR 5562390475 | BoardBoard of Directors | Since 2019 | — | Dissolved |
| Ulf Westerberg & Son Fastighetsförvaltnings Aktiebolag CVR 5563449080 | BoardBoard of Directors | Since 2025 | — | Active |
| Familjen Westerberg Fastigheter Aktiebolag CVR 5565008116 | BoardBoard of Directors | Since 2022 | — | Active |
| Ulm's Snickeri AB CVR 5565294971 | BoardDeputy Board Member | Since 2021 | — | Active |
| Familjen Westerberg Pylonhus AB CVR 5566453329 | BoardBoard of Directors | Since 2022 | — | Active |
| Familjen K Westerberg Fastigheter AB CVR 5566468954 | BoardDeputy Board Member | Since 2022 | — | Active |
| Samproj Fastigheter AB CVR 5566735642 | BoardBoard of Directors | Since 2022 | — | Active |
| Familjen Westerberg Lokalfastigheter AB CVR 5567235147 | BoardBoard of Directors | Since 2022 | — | Active |
| Familjen Westerberg Axetfastigheter AB CVR 5567841308 | BoardBoard of Directors | Since 2019 | — | Dissolved |
| Familjen Westerberg Åbyfastigheter AB CVR 5568022379 | BoardBoard of Directors | Since 2022 | — | Active |
| Westerstaden Åbyfastigheter AB CVR 5593375735 | BoardBoard of Directors | Since 2022 | — | Dissolved |
| Westerstaden Trönäs Åbyfastighet AB CVR 5593893687 | BoardBoard of Directors | Since 2022 | — | Active |
| Familjen Westerberg Krokeksfastigheter AB CVR 5594972142 | BoardBoard of Directors | Since 2024 | — | Active |
| Möjligheternas Söderköping, ekonomisk förening CVR 7696117303 | BoardBoard of Directors | Since 2020 | — | Active |
| Westerberg & Son Fastigheter Kommanditbolag CVR 9166927880 | OwnerOwner | Since 2022 | — | Active |