| Company | Role | Period | Ownership | Status |
|---|---|---|---|---|
| RÅDGIVENDE INGENIØR OLE MØRK LAURIDSEN CVR 15874651 | OtherStakeholder | Since 1974 | — | Active |
| Ingeniørforening I Danmark Elektrofond CVR 11602894 | BoardBoard of Directors | Since 2017 | — | Active |
| SELSKABET FOR DANMARKS TEKNISKE MUSEUM /TEKNISK MUSEUM.S VENNER CVR 53573010 | OtherUnofficial title | Since 2024 | — | Active |
| Company | Role | Period | Ownership | Status |
|---|---|---|---|---|
| JOHN WILEY & SONS A/S CVR 24207854 | BoardBoard of Directors | 1951 – 2001 | — | Active |
| BRÜEL ACOUSTICS ApS CVR 15672307 | BoardChairman | 2005 – 2010 | — | Dissolved |
| TV S A/S CVR 16315583 | BoardBoard of Directors | 1992 – 1995 | — | Dissolved |
| TETRA DANMARK A.M.B.A. CVR 18663449 | BoardBoard of Directors | 1994 – 1999 | — | Dissolved |
| HANDSHAKE SYSTEMS ApS CVR 21422673 | BoardBoard of Directors | 2000 – 2001 | — | Dissolved |
| CORE A/S CVR 21557579 | BoardChairman | 1999 – 2003 | — | Dissolved |
| DANSK TALETEKNOLOGI ApS CVR 21843377 | BoardChairman | 1999 – 2000 | — | Dissolved |
| TELE DANMARK RESEARCH CVR 22343211 | BoardBoard of Directors | 2000 – 2000 | — | Dissolved |
| COMBILENT A/S CVR 19623742 | BoardBoard of Directors | 2009 – 2012 | — | Active |
| HANDSHAKE TECHNOLOGIES A/S CVR 25538188 | BoardBoard of Directors | 2000 – 2003 | — | Dissolved |
| TC CONNECT A/S CVR 25543645 | BoardBoard of Directors | 2007 – 2013 | — | Dissolved |
| NIROS COMMUNICATIONS A/S CVR 27918417 | BoardBoard of Directors | 2004 – 2007 | — | Dissolved |
| BRÜEL NORDJYLLAND ApS CVR 28654022 | BoardBoard of Directors | 2006 – 2009 | — | Dissolved |
| I-NO ApS CVR 28713533 | BoardBoard of Directors | 2010 – 2010 | — | Dissolved |
| DIGI ACOUSTICS ApS CVR 26999111 | OtherFounder | 2002 – 2025 | — | Dissolved |
| Aluflam Facader A/S CVR 25442032 | BoardBoard of Directors | 2000 – 2002 | — | Active |
| FREEDOM2ACT ApS CVR 26294002 | BoardChairman | 2003 – 2004 | — | Active |
| WARNING SYSTEMS ApS CVR 33592620 | ManagementChief Executive Officer | 2014 – 2016 | — | Dissolved |
| WARNING SYSTEMS HOLDING ApS CVR 34474974 | OwnerLegal Owner | 2015 – 2018 | — | Dissolved |
| RESEIWE A/S CVR 35030190 | BoardBoard of Directors | 2013 – 2015 | — | Dissolved |
| Selskabet for Naturlærens Udbredelse CVR 23052717 | BoardBoard of Directors | 2017 – 2024 | — | Active |
| FARA DANMARK A/S CVR 28118864 | BoardBoard of Directors | 2004 – 2007 | — | Active |
| NIROS TELECOMMUNICATION A/S CVR 41713216 | BoardBoard of Directors | 2000 – 2007 | — | Dissolved |
| PVE AFVIKLINGSSELSKAB AF 18. SEPTEMBER 1998 A/S CVR 46543017 | BoardChairman | 1976 – 2001 | — | Dissolved |
| D.A.I. DIGITAL & ACOUSTIC INSTRUMENTS ApS CVR 66773515 | BoardBoard of Directors | 1981 – 1990 | — | Dissolved |
| KJELD SCHOUBOE 2 A/S CVR 78524510 | BoardBoard of Directors | 2000 – 2001 | — | Dissolved |
| KJELD SCHOUBOE 1 A/S CVR 87377318 | BoardBoard of Directors | 1997 – 2001 | — | Dissolved |
| KINOVOX A/S CVR 87835812 | BoardBoard of Directors | 1982 – 1992 | — | Dissolved |
| GLOBALCONNECT A/S CVR 26759722 | BoardBoard of Directors | 2010 – 2011 | — | Active |
| DAMRC F.M.B.A. CVR 33082940 | BoardChairman | 2010 – 2014 | — | Active |
| Person | Role | Shared companies | Profile |
|---|---|---|---|
| Legal Owner | 1company | View profile | |
| Board of Directors | 1company | View profile | |
| Board of Directors | 1company | View profile | |
| Chief Executive Officer | 1company | View profile | |
| Board of Directors | 1company | View profile |