| Etn-Dot-Com V/Ellen Trane Nørby CVR 25294734 | OtherStakeholder | 2000 – 2004 | — | Active |
| SONFOR Spildevand A/S CVR 31875722 | BoardChairman | 2022 – 2026 | — | Active |
| SONFOR Genbrug & Affald A/S CVR 31875560 | BoardChairman | 2022 – 2026 | — | Active |
| SONFOR Holding A/S CVR 32286909 | BoardChairman | 2022 – 2026 | — | Active |
| SONFOR Vedvarende Energi A/S CVR 36941545 | BoardChairman | 2022 – 2026 | — | Active |
| SONFOR Varme A/S CVR 36941650 | BoardChairman | 2022 – 2026 | — | Active |
| SONFOR Service A/S CVR 31875544 | BoardChairman | 2022 – 2026 | — | Active |
| SONFOR Deponi A/S CVR 38274643 | BoardChairman | 2022 – 2026 | — | Active |
| Sønderborg Lufthavn A/S CVR 41044861 | BoardBoard of Directors | 2024 – 2026 | — | Active |
| Enhance TopCo ApS CVR 42534293 | BoardBoard of Directors | 2024 – 2026 | — | Active |
| SONFOR Vand A/S CVR 31875439 | BoardChairman | 2022 – 2026 | — | Active |
| SONFOR Resort Varme A/S CVR 43322494 | BoardChairman | 2022 – 2026 | — | Dissolved |
| PROJECT ZERO-FONDEN CVR 31603218 | BoardBoard of Directors | 2022 – 2026 | — | Active |
| Genau & More A/S CVR 26901804 | BoardChairman | 2021 – 2024 | — | Dissolved |
