| KSSA HOLDING A/S CVR 10269601 | BoardBoard of Directors | 1986 – 1991 | — | Dissolved |
| FOSS AF 24. AUGUST 1998 ApS CVR 21004731 | BoardChairman | 1998 – 2011 | — | Active |
| LATTEC I/S CVR 25971787 | BoardBoard of Directors | 2001 – 2011 | — | Active |
| SECURITY MANAGEMENT SYSTEMS A/S CVR 15661089 | BoardBoard of Directors | 1991 – 1996 | — | Dissolved |
| I/S AQUA AF 1. JULI CVR 16620130 | OtherStakeholder | 1992 – 2002 | — | Active |
| A.R. HOLDING AF 1999 A/S CVR 25114949 | BoardBoard of Directors | 2007 – 2020 | — | Dissolved |
| OMPS A/S CVR 25325354 | BoardChairman | 1933 – 1998 | — | Dissolved |
| ULL METER A/S CVR 28507593 | BoardBoard of Directors | 2005 – 2006 | — | Dissolved |
| VICH 9625 A/S CVR 30196961 | BoardBoard of Directors | 2007 – 2010 | — | Dissolved |
| Demant A/S CVR 71186911 | BoardBoard of Directors | 2017 – 2020 | — | Active |
| William Demant Fonden CVR 11628141 | BoardDeputy Chairman | 2008 – 2019 | — | Active |
| A/S HANIAS UNDERSTØTTELSESFOND CVR 11671349 | BoardBoard of Directors | 2019 – 2025 | — | Active |
| CHR. HANSEN HOLDING A/S CVR 61069518 | BoardBoard of Directors | 2002 – 2005 | — | Dissolved |
| 7-TECHNOLOGIES A/S CVR 73634113 | BoardBoard of Directors | 1984 – 1999 | — | Dissolved |
| Sweco Danmark A/S CVR 48233511 | BoardBoard of Directors | 1970 – 2000 | — | Active |
| OTICON A/S CVR 42334219 | BoardDeputy Chairman | 2008 – 2008 | — | Active |
| WILLIAM DEMANT INVEST A/S CVR 27761291 | BoardDeputy Chairman | 2012 – 2019 | — | Active |