| Westco Backa AB CVR 5566587480 | BoardBoard of Directors | Since 2025 | — | Active |
| 4D Bygg AB CVR 5568490824 | BoardBoard of Directors | Since 2022 | — | Dissolved |
| 4D Group AB CVR 5569950172 | BoardBoard of Directors | Since 2022 | — | Active |
| 4D Utveckling AB CVR 5590850250 | BoardBoard of Directors | Since 2022 | — | Active |
| 4D Förvaltning AB CVR 5591309876 | BoardBoard of Directors | Since 2022 | — | Active |
| Högberg Gillner Arkitektur AB CVR 5591650949 | BoardBoard of Directors | Since 2022 | — | Active |
| Långgatans smedja AB CVR 5592435886 | BoardBoard of Directors | Since 2020 | — | Dissolved |
| Kavlås Äng AB CVR 5592702772 | BoardBoard of Directors | Since 2022 | — | Active |
| Sjömansgården i Göteborg AB CVR 5592702830 | BoardBoard of Directors | Since 2021 | — | Active |
| Utbybergen AB CVR 5593587545 | BoardBoard of Directors | Since 2022 | — | Active |
| 4D Entreprenad AB CVR 5593598047 | BoardBoard of Directors | Since 2022 | — | Active |
| Majorna Bostad AB CVR 5593671950 | BoardBoard of Directors | Since 2022 | — | Active |
| 4D Projektutveckling AB CVR 5593671968 | BoardBoard of Directors | Since 2022 | — | Active |
| Fastighetsbolaget Majorna 305:3 AB CVR 5593728362 | BoardBoard of Directors | Since 2024 | — | Active |
| Fastighetsbolaget Majorna 305:4 AB CVR 5593728412 | BoardBoard of Directors | Since 2024 | — | Active |
| Stålberget Fastigheter AB CVR 5594885534 | BoardDeputy Board Member | Since 2024 | — | Active |
| Westco AB CVR 5595330167 | BoardBoard of Directors | Since 2025 | — | Active |
| 4D Ekonomisk förening CVR 7696365860 | BoardBoard of Directors | Since 2021 | — | Dissolved |
| 4D Bygg Arkitektur Konstruktion Projektering Proje ktledning CVR 8602138938 | OtherStakeholder | Since 2024 | — | Active |