| Holmströms Rör AB CVR 5560874173 | BoardBoard of Directors | Since 2022 | — | Active |
| Elektriska Montagebyrån ingenjör Sven Andersson Aktiebolag CVR 5560968249 | BoardBoard of Directors | Since 2023 | — | Active |
| Ventilation Entreprenad Aktiebolag V E A B CVR 5562107390 | BoardBoard of Directors | Since 2021 | — | Active |
| Veab Ventilation Entreprenad i Kristianstad Aktiebolag CVR 5562582089 | BoardBoard of Directors | Since 2022 | — | Active |
| NE Installation AB CVR 5563590560 | BoardBoard of Directors | Since 2024 | — | Active |
| Energi & Klimatteknik i Tygelsjö AB CVR 5565622858 | BoardBoard of Directors | Since 2021 | — | Active |
| Rörmontering Kristianstad AB CVR 5565671467 | BoardBoard of Directors | Since 2022 | — | Active |
| K Vent AB CVR 5567819635 | BoardBoard of Directors | Since 2022 | — | Active |
| VEAB Ventilation Entreprenad I Helsingborg AB CVR 5590776877 | BoardBoard of Directors | Since 2021 | — | Active |
| Styr Entreprenad i Malmö AB CVR 5591605984 | BoardBoard of Directors | Since 2021 | — | Active |
| Holmströms Rör Syd Väst AB CVR 5591981005 | BoardBoard of Directors | Since 2022 | — | Active |
| Holmströms Rör i Ängelholm AB CVR 5592014186 | BoardBoard of Directors | Since 2022 | — | Active |
| Mortensen Holding AB CVR 5593095093 | BoardDeputy Board Member | Since 2022 | — | Active |
| Currentum Partners Syd AB CVR 5593200099 | BoardBoard of Directors | Since 2021 | — | Active |
| Installationsbolaget Malmö AB CVR 5594696915 | BoardBoard of Directors | Since 2024 | — | Active |