| Company | Role | Period | Ownership | Status |
|---|---|---|---|---|
| Arvika Energi Aktiebolag CVR 5560039462 | BoardBoard of Directors | Since 2023 | — | Dissolved |
| Ljusnans Kraftaktiebolag CVR 5560226739 | BoardBoard of Directors | Since 2023 | — | Dissolved |
| Dalälvens Kraft Aktiebolag CVR 5560556226 | OtherExternal Signatory | Since 2023 | — | Dissolved |
| Fortum Power and Heat AB CVR 5562215623 | OtherExternal Signatory | Since 2019 | — | Dissolved |
| Avestaforsen Aktiebolag CVR 5562443969 | BoardBoard of Directors | Since 2023 | — | Dissolved |
| Kopparkraft Aktiebolag CVR 5562837368 | BoardBoard of Directors | Since 2019 | — | Dissolved |
| Älvkraft i Värmland Intressenter AB CVR 5565626925 | BoardBoard of Directors | Since 2023 | — | Dissolved |
| Exeger Sweden AB (publ) CVR 5567776926 | BoardBoard of Directors | Since 2021 | — | Active |
| Exeger Operations AB CVR 5590736806 | BoardBoard of Directors | Since 2021 | — | Active |
| Polar Energy Solutions AB CVR 5593045866 | BoardBoard of Directors | Since 2025 | — | Active |
| Polar EV Charge & Storage AB CVR 5593316226 | BoardBoard of Directors | Since 2024 | — | Active |
| Polar Capacity AB CVR 5593444655 | BoardBoard of Directors | Since 2025 | — | Active |
| FusionTransform Holding AB CVR 5593478026 | BoardDeputy Board Member | Since 2022 | — | Active |
| Polar Battery AB CVR 5593886319 | BoardBoard of Directors | Since 2024 | — | Active |
| Effektbolaget i Sverige AB CVR 5594026162 | BoardDeputy Board Member | Since 2024 | — | Active |
| Effektbolaget i Brista AB CVR 5594484924 | BoardDeputy Board Member | Since 2024 | — | Active |
| Effektbolaget i Kristianstad 4 AB CVR 5594488321 | BoardDeputy Board Member | Since 2026 | — | Active |
| FLX Utility AB CVR 5594620493 | BoardBoard of Directors | Since 2023 | — | Active |
| Sala-Heby Effekt AB CVR 5594743105 | BoardDeputy Board Member | Since 2026 | — | Active |
| Polar Energy Boden Holding AB CVR 5594811829 | BoardBoard of Directors | Since 2024 | — | Active |
| Polar Energy Boden AB CVR 5594811878 | BoardBoard of Directors | Since 2024 | — | Active |
| Company | Role | Period | Ownership | Status |
|---|---|---|---|---|
| Fortum Sverige AB CVR 5560068230 | OtherExternal Signatory | 2022 – 2023 | — | Active |
| Stockholm Exergi Holding AB (publ) CVR 5560406034 | BoardBoard of Directors | 2020 – 2020 | — | Active |
| Fortum Sweden AB CVR 5564789674 | BoardBoard of Directors | 2022 – 2023 | — | Active |
| Karlskoga Energi och Miljö AB CVR 5565074126 | BoardBoard of Directors | 2008 – 2010 | — | Active |
| Fortum Power AB CVR 5592889439 | BoardBoard of Directors | 2022 – 2023 | — | Active |
| NRE Depåfastigheter 3 AB CVR 5592926645 | BoardDeputy Board Member | 2024 – 2024 | — | Active |
| NRE Nordic Rail Projekt I AB CVR 5594743063 | BoardBoard of Directors | 2024 – 2025 | — | Active |
| Person | Role | Shared companies | Profile |
|---|---|---|---|
| Chairman | 3companies | View profile | |
| Chief Auditor | 2companies | View profile | |
| Chief Executive Officer | 2companies | View profile | |
| External Signatory | 1company | View profile | |
| Chairman | 1company | View profile |