| Aktiebolaget Karlsborgsbostäder CVR 5564811924 | ManagementChief Executive Officer | Since 2021 | — | Active |
| Karlsborgs Energi Aktiebolag CVR 5564951415 | ManagementChief Executive Officer | Since 2023 | — | Active |
| Karlsborgs Energi Försäljnings Aktiebolag CVR 5564995164 | ManagementChief Executive Officer | Since 2022 | — | Dissolved |
| HjoTiBorg Energi Aktiebolag CVR 5565352431 | BoardBoard of Directors | Since 2020 | — | Active |
| Karlsborgs Värme AB CVR 5565559746 | ManagementChief Executive Officer | Since 2023 | — | Active |
| Bosnet Aktiebolag CVR 5566733175 | BoardBoard of Directors | Since 2024 | — | Active |
| Karlsborgs Padel AB CVR 5593018483 | BoardBoard of Directors | Since 2022 | — | Dissolved |
| Karlsborgs Elnät AB CVR 5594349705 | ManagementChief Executive Officer | Since 2023 | — | Active |
