| Company | Role | Period | Ownership | Status |
|---|
| Company | Role | Period | Ownership | Status |
|---|---|---|---|---|
| INVESTORSELSKABET 2013 A/S CVR 25339940 | BoardBoard of Directors | 2013 – 2019 | — | Dissolved |
| GNR HYDRAULIK A/S CVR 12517890 | BoardBoard of Directors | 1988 – 1998 | — | Dissolved |
| MOBICARE A/S CVR 21701572 | BoardBoard of Directors | 1999 – 2002 | — | Dissolved |
| STRANDMØLLEN A/S CVR 13913072 | BoardBoard of Directors | 1990 – 2000 | — | Active |
| CHRISTIAN NIELSENS FOND CVR 26324017 | BoardBoard of Directors | 1986 – 2013 | — | Active |
| Green Hydrogen Systems A/S CVR 30548701 | BoardBoard of Directors | 2012 – 2016 | — | Active |
| DATOSELSKABET AF 26. MARTS 2010 A/S CVR 62917016 | BoardBoard of Directors | 1950 – 2006 | — | Dissolved |
| AFVIKLINGSSELSKABET AF 31.7.2000 A/S CVR 87669513 | BoardBoard of Directors | 2000 – 2001 | — | Dissolved |
| BS-ARMERING A/S CVR 89619718 | BoardBoard of Directors | 1980 – 1999 | — | Dissolved |
| SIGAS ApS CVR 71419010 | BoardBoard of Directors | 2015 – 2019 | — | Active |
| Person | Role | Shared companies | Profile |
|---|---|---|---|
| Management | 1company | View profile | |
| Chairman | 1company | View profile | |
| Chairman | 1company | View profile | |
| Unofficial title | 1company | View profile | |
| Board of Directors | 1company | View profile |