| Company | Role | Period | Ownership | Status |
|---|---|---|---|---|
| European Ham Academy v/Jan Vistisen CVR 45406768 | OtherStakeholder | Since 2025 | — | Active |
| Company | Role | Period | Ownership | Status |
|---|---|---|---|---|
| HOUSETECH ApS CVR 10338530 | OtherFounder | 1986 – 1989 | — | Dissolved |
| BOLIG-GRUPPEN DANMARK ApS CVR 11543383 | OtherFounder | 1987 – 1991 | — | Dissolved |
| CHARTELL ApS CVR 11737196 | ManagementManagement | 1987 – 1990 | — | Dissolved |
| ILHAN ApS CVR 25445937 | ManagementManagement | 2000 – 2001 | — | Dissolved |
| C & W MANAGEMENT ApS CVR 25525655 | ManagementManagement | 2001 – 2001 | — | Dissolved |
| Cyber Security School IVS CVR 38859951 | OtherFounder | 2017 – 2020 | — | Dissolved |
| Ungermann Consulting ApS CVR 33748248 | OwnerLegal Owner | 2011 – 2020 | — | Active |
| Person | Role | Shared companies | Profile |
|---|---|---|---|
| Audit | 3companies | View profile | |
| Audit | 1company | View profile | |
| Management | 1company | View profile | |
| Audit | 1company | View profile | |
| Unofficial title | 1company | View profile |