| Company | Role | Period | Ownership | Status |
|---|---|---|---|---|
| GRANDAHL RØR AS CVR 931940236 | BoardBoard of Directors | Since 2025 | — | Active |
| KEEPERS AS CVR 916189419 | ManagementChief Executive Officer | Since 2018 | — | Active |
| INSTALCO NORGE AS CVR 933792544 | BoardBoard of Directors | Since 2024 | — | Active |
| CHRISTIANIA RØRLEGGERBEDRIFT AS CVR 912069370 | BoardBoard of Directors | Since 2024 | — | Active |
| GREVSTAD & TVEDT VVS AS CVR 920215742 | BoardBoard of Directors | Since 2024 | — | Active |
| ELEKTRISK AS CVR 970994149 | BoardBoard of Directors | Since 2024 | — | Active |
| HAUG OG RUUD VVS AS CVR 914737613 | BoardBoard of Directors | Since 2025 | — | Active |
| FRØLAND & NOSS ELEKTRO AS CVR 977349990 | BoardBoard of Directors | Since 2024 | — | Active |
| RIKELEKTRO AS CVR 991320164 | BoardBoard of Directors | Since 2025 | — | Active |
| TOTAL VVS AS CVR 997275160 | BoardBoard of Directors | Since 2025 | — | Active |
| LYSTEKNIKK ELEKTROENTREPRENØR AS CVR 995971135 | BoardBoard of Directors | Since 2023 | — | Active |
| BAKKE EL-INSTALLASJON AS CVR 952438360 | BoardBoard of Directors | Since 2025 | — | Active |
| MOI RØR AS CVR 971004525 | BoardBoard of Directors | Since 2025 | — | Active |
| ANDERSEN OG AKSNES RØRLEGGERBEDRIFT AS CVR 911978261 | BoardBoard of Directors | Since 2025 | — | Active |
| RØRTEFT AS CVR 975983862 | BoardBoard of Directors | Since 2025 | — | Active |
| VITO TEKNISK ENTREPRENØR AS CVR 884260922 | BoardBoard of Directors | Since 2025 | — | Active |
| VENTEC AS CVR 957698085 | BoardBoard of Directors | Since 2025 | — | Active |
| Person | Role | Shared companies | Profile |
|---|---|---|---|
| Board of Directors | 2companies | View profile | |
| Legal Owner | 1company | View profile | |
| Legal Owner | 1company | View profile | |
| Chief Executive Officer | 1company | View profile | |
| Chairman | 1company | View profile |