| Saxlund International AB CVR 5560734484 | BoardBoard of Directors | Since 2019 | — | Dissolved |
| Calamus Aktiebolag CVR 5562760644 | BoardBoard of Directors | Since 2022 | — | Active |
| Rolf Hasselström Konsult- och Förvaltningsaktiebolag CVR 5562929298 | BoardBoard of Directors | Since 2022 | — | Active |
| Eureka Energy Systems AB CVR 5563895431 | BoardBoard of Directors | Since 2022 | — | Active |
| Opcon Autorotor Aktiebolag CVR 5564086485 | BoardBoard of Directors | Since 2019 | — | Dissolved |
| Landström Arkitekter AB CVR 5564312501 | BoardBoard of Directors | Since 2021 | — | Active |
| Svensk Rökgasenergi Intressenter AB CVR 5564756574 | BoardBoard of Directors | Since 2019 | — | Dissolved |
| TopCom Sweden Aktiebolag CVR 5564829884 | BoardBoard of Directors | Since 2023 | — | Dissolved |
| Mitec Instrument Aktiebolag CVR 5565093324 | BoardBoard of Directors | Since 2019 | — | Dissolved |
| Svensk Rökgasenergi Aktiebolag CVR 5565563953 | BoardBoard of Directors | Since 2019 | — | Dissolved |
| Connectnow.com i Stockholm Aktiebolag CVR 5565777397 | BoardBoard of Directors | Since 2023 | — | Dissolved |
| Värmlands Montageteknik AB CVR 5566462346 | BoardBoard of Directors | Since 2019 | — | Dissolved |
| Calamus Holding AB CVR 5568071962 | BoardBoard of Directors | Since 2022 | — | Active |
| Calamus Invest AB CVR 5568076763 | BoardBoard of Directors | Since 2022 | — | Active |
| Valgrundet offshore AB CVR 5592211410 | BoardBoard of Directors | Since 2022 | — | Active |
| Vindpark 3 AB CVR 5592445273 | BoardBoard of Directors | Since 2022 | — | Active |
| Windco Holding AB CVR 5592893662 | BoardBoard of Directors | Since 2022 | — | Active |
| Robertsfors Hydrogen AB CVR 5593065773 | BoardBoard of Directors | Since 2022 | — | Active |
| Vindpark 4 AB CVR 5593264764 | BoardBoard of Directors | Since 2022 | — | Active |
| Calamus Konsult Kommanditbolag CVR 9697802396 | OtherExternal Signatory | Since 2022 | — | Active |
