| A/S PSE NR. 1560 CVR 10047641 | BoardBoard of Directors | 1985 – 1988 | — | Dissolved |
| 3 P PROFESSIONEL PORTEFØLJE PLACERING A/S CVR 10063280 | BoardBoard of Directors | 1985 – 1988 | — | Dissolved |
| PRIMADAN A/S CVR 10101379 | OtherFounder | 1985 – 1992 | — | Dissolved |
| PRIMADAN HOLDING A/S CVR 10106400 | OtherFounder | 1985 – 1992 | — | Dissolved |
| HARTMANN FINANCE A/S CVR 29613427 | BoardChairman | 2006 – 2006 | — | Active |
| Sonoco Skjern ApS CVR 83031212 | BoardChairman | 2000 – 2005 | — | Active |
| BRØDRENE HARTMANN INVEST ApS CVR 15525797 | BoardChairman | 1997 – 2006 | — | Dissolved |
| IMMUNODIAGNOSTIC SYSTEMS NORDIC A/S CVR 16584037 | BoardBoard of Directors | 1998 – 2002 | — | Dissolved |
| STJERNEGAARD A/S CVR 14249230 | ManagementManagement | 2007 – 2021 | — | Dissolved |
| NORDIC BIOSCIENCE CLINICAL STUDIES A/S CVR 21144347 | BoardBoard of Directors | 2001 – 2002 | — | Dissolved |
| REJS - Travel Industry Denmark CVR 20770317 | BoardBoard of Directors | 2017 – 2019 | — | Active |
| Leagues ApS CVR 38606166 | BoardChairman | 2023 – 2024 | — | Active |
| BRØDRENE HARTMANNS FOND CVR 31767814 | BoardBoard of Directors | 2001 – 2003 | — | Active |
| UNIQA Group A/S CVR 31769086 | BoardChairman | 2021 – 2023 | — | Active |
| DANFIBER A/S CVR 13591377 | BoardBoard of Directors | 2001 – 2002 | — | Dissolved |
| EMC FURNITURE A/S CVR 68579554 | ManagementChief Executive Officer | 1985 – 1989 | — | Dissolved |
| BOND-INVEST ApS CVR 76988218 | BoardBoard of Directors | 1985 – 1987 | — | Dissolved |
| DANKO 3 INVEST A/S CVR 77357114 | BoardBoard of Directors | 1985 – 1987 | — | Dissolved |
| A.D. INVEST ApS CVR 89907713 | ManagementManagement | 1982 – 1990 | — | Dissolved |
| DANBØRS A/S CVR 20844477 | BoardBoard of Directors | 2001 – 2002 | — | Dissolved |
| Selskabet af 28/6 1997 ApS CVR 20320346 | BoardBoard of Directors | 1998 – 1999 | — | Active |
| BUHL & BØNSØE A/S CVR 51649117 | BoardBoard of Directors | 1975 – 2024 | — | Active |
| HARTMANN PACKAGING A/S CVR 63049611 | ManagementChief Executive Officer | 2001 – 2006 | — | Active |