| ApS KBUS 8 NR. 2678 CVR 11185509 | OtherAudit | 1987 – 1989 | — | Dissolved |
| REDERIET J.B. LARSEN ApS CVR 13963703 | OtherAudit | 1999 – 2000 | — | Dissolved |
| NEXØ REVISION ADMINISTRATION I/S CVR 14786236 | OtherStakeholder | 1991 – 2000 | — | Active |
| BILSYN BORNHOLM ApS CVR 16311685 | OtherAudit | 2000 – 2001 | — | Dissolved |
| BORNVALT ApS CVR 18526840 | BoardBoard of Directors | 2003 – 2016 | — | Dissolved |
| CENTRUM REVISION I/S CVR 18928086 | OtherStakeholder | 1995 – 1999 | — | Active |
| BORNPOULTRY A/S CVR 19641287 | OtherAudit | 1997 – 2001 | — | Dissolved |
| Nexø Revision I/S CVR 21785687 | OtherStakeholder | 1999 – 2010 | — | Active |
| Svaneke Ejendomme ApS CVR 27137806 | OtherAudit | 2003 – 2006 | — | Active |
| OPAS LEASING A/S CVR 19267474 | BoardBoard of Directors | 2007 – 2014 | — | Active |
| Bornholms Forvaltning A/S CVR 37858382 | BoardBoard of Directors | 2016 – 2018 | — | Active |
| KMPJP A/S CVR 32663923 | BoardBoard of Directors | 2010 – 2018 | — | Dissolved |
| Ejendommen Tornegade 4, Rønne ApS CVR 31154944 | ManagementManagement | 2016 – 2018 | — | Active |
| FONDEN FOR E. MARCUSSENS FERIEHUSE CVR 52546117 | OtherAudit | 1999 – 2016 | — | Active |
| KNUD CARLSEN HOLDING ApS CVR 25505115 | OtherAudit | 2000 – 2010 | — | Active |
| K/S WESTERWALD, TYSKLAND CVR 31430801 | BoardDeputy Chairman | 2018 – 2025 | — | Active |
| DUEODDE GOLFBANE A/S CVR 77443215 | OtherUnofficial title | 2019 – 2021 | — | Dissolved |
| TANDLÆGE BJARNE MAAHR ApS. NEXØ CVR 16983586 | OtherAudit | 1993 – 2001 | — | Active |
| Bornholms Revision A/S CVR 37858498 | BoardBoard of Directors | 2016 – 2018 | — | Active |
| PLE A/S CVR 19811638 | OtherAudit | 2002 – 2003 | — | Active |
| Bornholms Økojord A/S CVR 42040053 | BoardBoard of Directors | 2021 – 2026 | — | Active |