| CTEK A/S CVR 10040523 | BoardBoard of Directors | 2012 – 2013 | — | Dissolved |
| EDB SYSTEM PARTNER DANMARK A/S CVR 14428887 | OtherUnofficial title | 1990 – 1995 | — | Dissolved |
| THY DATA HOLDING A/S CVR 16993735 | BoardBoard of Directors | 1993 – 2015 | — | Dissolved |
| THY DATA KOLDING A/S CVR 19172481 | BoardBoard of Directors | 1996 – 2009 | — | Dissolved |
| DYNAWAY A/S CVR 25309103 | BoardChairman | 2011 – 2013 | — | Active |
| LMNOP AF 2.7.2001 A/S CVR 24211444 | BoardBoard of Directors | 1999 – 2008 | — | Dissolved |
| THY DATA A/S CVR 26260701 | BoardBoard of Directors | 2008 – 2012 | — | Dissolved |
| EGON ØSTERGAARD HOLDING ApS CVR 26367433 | OtherFounder | 2001 – 2018 | — | Dissolved |
| THY DATA ÅRHUS A/S CVR 26522757 | BoardBoard of Directors | 2002 – 2009 | — | Dissolved |
| THY DATA AALBORG A/S CVR 27110177 | BoardBoard of Directors | 2008 – 2009 | — | Dissolved |
| THY DATA KØBENHAVN A/S CVR 27960707 | BoardBoard of Directors | 2004 – 2009 | — | Dissolved |
| THY: INNOVATION A/S CVR 29626553 | BoardChairman | 2009 – 2011 | — | Dissolved |
| Knowit Solutions A/S CVR 25678990 | BoardBoard of Directors | 2000 – 2004 | — | Active |
| IT-E INVEST ApS CVR 31482755 | ManagementManagement | 2012 – 2018 | — | Dissolved |
| THY DATA INVEST ApS CVR 31582687 | BoardBoard of Directors | 2008 – 2015 | — | Dissolved |
| THY DATA MANAGEMENT ApS CVR 31582903 | BoardBoard of Directors | 2011 – 2015 | — | Dissolved |
| NY EGON ØSTERGAARD HOLDING ApS CVR 31769051 | OtherFounder | 2008 – 2009 | — | Dissolved |
| IT-E HOLDING ApS CVR 32141528 | OwnerLegal Owner | 2009 – 2020 | — | Active |
| THY SENIOR INVEST ApS CVR 32441408 | BoardBoard of Directors | 2009 – 2015 | — | Dissolved |
| Genau & More A/S CVR 26901804 | BoardChairman | 2016 – 2019 | — | Dissolved |
