| HELGE LØNHART ApS CVR 24238415 | BoardChairman | 1999 – 2024 | — | Active |
| BRDR. HØYER A/S CVR 10905893 | BoardChairman | 2015 – 2016 | — | Dissolved |
| HOLM & HALBY A/S CVR 19137708 | BoardBoard of Directors | 1988 – 1994 | — | Active |
| TECH-PARTNER A/S CVR 11835902 | BoardChairman | 1988 – 1994 | — | Dissolved |
| PRESCOM A/S CVR 12143389 | BoardBoard of Directors | 1988 – 1994 | — | Dissolved |
| MATADOR DISTRIBUTION A/S CVR 14707549 | BoardBoard of Directors | 1990 – 1994 | — | Dissolved |
| E. V. JOHANSSEN ELEKTRONIK A/S CVR 14743197 | BoardBoard of Directors | 1990 – 1994 | — | Dissolved |
| HANDELS- OG INGENIØRFIRMAET DITZ SCHWEITZER A/S CVR 14743235 | BoardBoard of Directors | 1990 – 1994 | — | Dissolved |
| Future CAD in Denmark A/S CVR 10510732 | BoardBoard of Directors | 1999 – 2003 | — | Active |
| SCANDCOMP ApS CVR 17074040 | BoardChairman | 1993 – 2004 | — | Dissolved |
| BBE A/S CVR 17839233 | BoardBoard of Directors | 2001 – 2004 | — | Dissolved |
| BETECH DATA DEVELOPMENT A/S CVR 20389273 | BoardBoard of Directors | 1999 – 2004 | — | Dissolved |
| HEATH COMM A/S CVR 25125444 | BoardChairman | 2000 – 2001 | — | Dissolved |
| ACTE SYSTEMS A/S CVR 25132440 | BoardChairman | 2000 – 2001 | — | Dissolved |
| CHILI KID'S A/S CVR 26441641 | BoardBoard of Directors | 2002 – 2005 | — | Dissolved |
| PALCON INSTRUMENTS A/S CVR 26675677 | BoardBoard of Directors | 2006 – 2006 | — | Dissolved |
| 2B-ELECTRONICS ASIA ApS CVR 27960928 | ManagementManagement | 2004 – 2015 | — | Dissolved |
| PERSONALEGRUPPEN A/S CVR 28706650 | BoardBoard of Directors | 2013 – 2014 | — | Dissolved |
| Annie & Otto Johs. Detlefs´ Almennyttige Fond CVR 25200942 | BoardBoard of Directors | 2017 – 2021 | — | Active |
| ELLEGAARD GROUP A/S CVR 18660644 | BoardChairman | 2006 – 2011 | — | Active |
| Much More Water A/S CVR 26302676 | BoardChairman | 2006 – 2011 | — | Active |
| ELFAC A/S CVR 17465031 | BoardChairman | 2000 – 2002 | — | Active |
| OJD TRADING ApS CVR 11888577 | BoardBoard of Directors | 2003 – 2020 | — | Active |
| REPDELCO A/S CVR 56779515 | BoardBoard of Directors | 1961 – 1994 | — | Dissolved |
| A/S DANBRIDGE CVR 59613928 | BoardBoard of Directors | 2005 – 2006 | — | Dissolved |
| 2B-ELECTRONICS A/S CVR 81503818 | BoardChairman | 1985 – 2001 | — | Dissolved |
| OJD FONDEN CVR 28146353 | BoardBoard of Directors | 2004 – 2020 | — | Active |
| OXPO PROPERTY ApS CVR 20830190 | BoardChairman | 2008 – 2011 | — | Active |
| ADDCOMP DK A/S CVR 14752609 | BoardBoard of Directors | 1990 – 1995 | — | Active |
| Brødrene Lønhart Holding ApS CVR 42849847 | BoardChairman | 2021 – 2024 | — | Active |
| LAGERCRANTZ A/S CVR 81746710 | BoardBoard of Directors | 1976 – 2004 | — | Active |
| OJD BYGGEFONDEN CVR 35412204 | BoardBoard of Directors | 2013 – 2020 | — | Active |
| ACTE A/S CVR 71288919 | BoardChairman | 2000 – 2001 | — | Active |
