| JM Värmdöstrand AB CVR 5560016213 | BoardBoard of Directors | Since 2024 | — | Active |
| JM AB CVR 5560452103 | OtherExternal Signatory | Since 2020 | — | Active |
| Bruket i Kallhäll Exploaterings Aktiebolag CVR 5565610184 | BoardBoard of Directors | Since 2024 | — | Active |
| JM Lund Västerbro AB CVR 5567024889 | BoardBoard of Directors | Since 2025 | — | Active |
| JM Byrån Holding AB CVR 5567529630 | BoardBoard of Directors | Since 2024 | — | Active |
| Minimalen Bostad AB CVR 5567542138 | BoardBoard of Directors | Since 2024 | — | Dissolved |
| BRO Haifa 1 AB CVR 5568211949 | BoardBoard of Directors | Since 2024 | — | Dissolved |
| JM Kammarsadeln Holding AB CVR 5568538465 | BoardBoard of Directors | Since 2024 | — | Active |
| Klippljuset Holding AB CVR 5568720527 | BoardBoard of Directors | Since 2024 | — | Active |
| Aktiebolaget Konvertibelhus CVR 5590017025 | BoardBoard of Directors | Since 2024 | — | Active |
| Trollhagen Fastighets AB CVR 5590826235 | BoardBoard of Directors | Since 2024 | — | Active |
| JM Tegelbruket Ekerö Strand AB CVR 5591240147 | BoardBoard of Directors | Since 2024 | — | Active |
| Fastighets AB Järvaliljan CVR 5592028616 | BoardBoard of Directors | Since 2024 | — | Active |
| JM Basilikan 1 AB CVR 5593517674 | BoardBoard of Directors | Since 2024 | — | Active |
| JM Rödkålen 1 AB CVR 5593517690 | BoardBoard of Directors | Since 2024 | — | Active |
| JM Svartkålen 1 AB CVR 5593517708 | BoardBoard of Directors | Since 2024 | — | Active |
| Fastighetsförvaltning Astronomen AB CVR 5594733536 | BoardBoard of Directors | Since 2024 | — | Active |
| JM Fastighetsutveckling 6 Holding AB CVR 5594869603 | BoardBoard of Directors | Since 2024 | — | Active |
| JM Lövholmen Holding AB CVR 5595686428 | BoardBoard of Directors | Since 2026 | — | Active |