| JM AB CVR 5560452103 | OtherExternal Signatory | Since 2020 | — | Active |
| Aktiebolaget Kulsinter CVR 5560667643 | BoardDeputy Board Member | Since 2019 | — | Dissolved |
| Årstapaviljongen AB CVR 5560693425 | BoardBoard of Directors | Since 2019 | — | Dissolved |
| Holmenkvarnen 8 AB CVR 5567088728 | BoardDeputy Board Member | Since 2020 | — | Active |
| Kvarnholmen Holding AB CVR 5567102263 | BoardDeputy Board Member | Since 2020 | — | Active |
| Holmenkvarnen 7 AB CVR 5567102313 | BoardDeputy Board Member | Since 2020 | — | Active |
| Holmenkvarnen 5 AB CVR 5567102388 | BoardDeputy Board Member | Since 2020 | — | Active |
| Holmenkvarnen 1 AB CVR 5567103451 | BoardDeputy Board Member | Since 2020 | — | Active |
| Kvarnholmen Utveckling AB CVR 5567105514 | BoardDeputy Board Member | Since 2020 | — | Active |
| JM Byrån Holding AB CVR 5567529630 | BoardBoard of Directors | Since 2023 | — | Active |
| JM Kammarsadeln Holding AB CVR 5568538465 | BoardBoard of Directors | Since 2022 | — | Active |
| Havremjölet 2 AB CVR 5568693849 | BoardDeputy Board Member | Since 2020 | — | Active |
| Havremjölet 1 AB CVR 5568704422 | BoardDeputy Board Member | Since 2020 | — | Active |
| Havremjölet 4 AB CVR 5568720444 | BoardDeputy Board Member | Since 2020 | — | Active |
| Havrekvarnen 1 Holding AB CVR 5568746662 | BoardDeputy Board Member | Since 2020 | — | Active |
| Havrekvarnen 2 Holding AB CVR 5568746670 | BoardDeputy Board Member | Since 2020 | — | Active |
| Bergshamra Bro AB CVR 5590665666 | BoardBoard of Directors | Since 2022 | — | Active |
| JM Tegelbruket Ekerö Strand AB CVR 5591240147 | BoardBoard of Directors | Since 2022 | — | Active |
| Fastighets AB Järvamåran CVR 5592028574 | BoardBoard of Directors | Since 2022 | — | Dissolved |
| Fastighets AB Järvaliljan CVR 5592028616 | BoardBoard of Directors | Since 2022 | — | Active |
| JM Bostad Holding AB CVR 5592789449 | BoardBoard of Directors | Since 2021 | — | Active |
| JM Bostad 2 Holding AB CVR 5592846108 | BoardBoard of Directors | Since 2022 | — | Active |
| Segeltorp Mossen 6 AB CVR 5593091357 | BoardBoard of Directors | Since 2022 | — | Active |
| Gärdet 6 och 8 Fastigheter AB CVR 5593460768 | BoardBoard of Directors | Since 2022 | — | Active |
| JM Bostad 3 Holding AB CVR 5593475600 | BoardBoard of Directors | Since 2022 | — | Active |
| Segeltorp Mossen 1 AB CVR 5593691180 | BoardBoard of Directors | Since 2022 | — | Active |
| JM Bostad 4 Holding AB CVR 5593984742 | BoardBoard of Directors | Since 2022 | — | Active |
| Kvarnholmens Bergrum AB CVR 5594706094 | BoardDeputy Board Member | Since 2024 | — | Active |
| Havremjölet 6 AB CVR 5594976929 | BoardDeputy Board Member | Since 2024 | — | Active |
| SG BR Bostad Holding AB CVR 5595290353 | BoardBoard of Directors | Since 2025 | — | Active |
| Fastighetsbolaget Borätten 1 AB CVR 5595306415 | BoardBoard of Directors | Since 2025 | — | Active |
| SG 251 Utveckling AB CVR 5595307330 | BoardBoard of Directors | Since 2025 | — | Active |
| JM Bostad 5 Holding AB CVR 5595387464 | BoardBoard of Directors | Since 2025 | — | Active |
| JM Lövholmen Holding AB CVR 5595686428 | BoardBoard of Directors | Since 2026 | — | Active |
| Havremjölet 7 AB CVR 5595733063 | BoardDeputy Board Member | Since 2026 | — | Active |
| Havremjölet 8 AB CVR 5595736835 | BoardDeputy Board Member | Since 2026 | — | Active |