| Nærvarme Danmark A/S CVR 83837128 | ManagementChief Executive Officer | Siden 2026 | — | Aktiv |
| SEF A/S CVR 32879934 | ManagementChief Executive Officer | Siden 2026 | — | Aktiv |
| FLOW ELNET A/S CVR 25119150 | ManagementChief Executive Officer | Siden 2026 | — | Aktiv |
| FOGEDGÅRDEN V/LARS FOGED CVR 10485932 | OtherStakeholder | Siden 1986 | — | Aktiv |
| SEF FIBER A/S CVR 27652328 | BoardChairman | Siden 2023 | — | Aktiv |
| FIBERLAN A/S CVR 27982379 | ManagementChief Executive Officer | Siden 2026 | — | Aktiv |
| FONDEN SYDFYNS ELFORSYNING CVR 35034102 | BoardBoard of Directors | Siden 2025 | — | Aktiv |
| SEF ENERGI A/S CVR 25119207 | ManagementChief Executive Officer | Siden 2026 | — | Aktiv |
| SEF Natur ApS CVR 44634686 | ManagementChief Executive Officer | Siden 2026 | — | Aktiv |