| BOILERRENT AS CVR 821373662 | BoardBoard of Directors | Since 2026 | — | Active |
| SCANDINAVIAN ENERGY SYSTEMS AS CVR 935496667 | BoardBoard of Directors | Since 2026 | — | Active |
| SKÅLAND RØR & INDUSTRIMONTASJE AS CVR 987571667 | BoardBoard of Directors | Since 2026 | — | Active |
| SELEBØ RØRSERVICE AS CVR 996629325 | BoardBoard of Directors | Since 2026 | — | Active |
| BOILERTECH AS CVR 917803498 | BoardBoard of Directors | Since 2026 | — | Active |
| ENERGY RENT AS CVR 993359661 | BoardBoard of Directors | Since 2026 | — | Active |
| SERTION NORWAY AS CVR 934836111 | BoardBoard of Directors | Since 2026 | — | Active |
| IPC INDUSTRIPROSJEKT AS CVR 831059192 | BoardBoard of Directors | Since 2026 | — | Active |
| IRV AS CVR 994449486 | BoardBoard of Directors | Since 2026 | — | Active |
| ØSTLANDSKE VVS AS CVR 984235763 | BoardBoard of Directors | Since 2026 | — | Active |
| SKÅLAND VVS AS CVR 927568462 | BoardBoard of Directors | Since 2026 | — | Active |
| ENERGISERVICE ØST AS CVR 913510968 | BoardBoard of Directors | Since 2026 | — | Active |
| INPRO AS CVR 993170801 | BoardBoard of Directors | Since 2026 | — | Active |
| BRYNE RØR AS CVR 886293372 | BoardBoard of Directors | Since 2026 | — | Active |
| OFOTEN RØR AS CVR 968277898 | BoardBoard of Directors | Since 2026 | — | Active |