RZK Radiologisches Zentrum am Universitätsklinikum Köln GmbH
RZK Radiologisches Zentrum am Universitätsklinikum Köln GmbH is a Private limited company (Ltd.) registered in Germany under HRB 67246 Köln, and its current status with Handelsregister (Commercial Register) is active. Its registered address on file is Köln, Germany. 4 shareholders are on record for RZK Radiologisches Zentrum am Universitätsklinikum Köln GmbH, including at least one natural person recorded as a direct holder; the filing carries no beneficial-ownership flag, so that holder is noted here as a recorded shareholder rather than a confirmed ultimate beneficial owner (UBO). This profile is sourced directly from Handelsregister (Commercial Register) and was last updated on 28 October 2026.
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Shareholders
4
Four shareholders are currently on record for RZK Radiologisches Zentrum am Universitätsklinikum Köln GmbH, held on the Gesellschafterliste (shareholder list), filed under §40 of the GmbHG.
The largest of these is Universitätsklinikum Köln -rechtsfähige Anstalt des öffentlichen Rechts des Landes Nordrhein-Westfalen-, holding 51% — a majority holding — followed by Jennissen, Johann Josef at 34%; the remaining 2 shareholders shown hold smaller stakes.
2 shareholders shown are companies, so the ownership chain continues above this level for those holdings; the other 2 are recorded as direct individual holders, though the record carries no UBO/PSC flag confirming beneficial-owner status.
| Shareholder | Type | Holding | Source Document |
|---|---|---|---|
| Universitätsklinikum Köln -rechtsfähige Anstalt des öffentlichen Rechts des Landes Nordrhein-Westfalen- | 51% | Handelsregister (Commercial Register) | |
| Jennissen, Johann Josef | 34% | Handelsregister (Commercial Register) | |
| Universitätsklinikum Köln -rechtsfähige Anstalt des öffentlichen Rechts des Landes Nordrhein-Westfalen- | 9% | Handelsregister (Commercial Register) | |
| Jennissen, Johann Josef | 6% | Handelsregister (Commercial Register) |
Officers
5
Three of the 5 officer records shown for RZK Radiologisches Zentrum am Universitätsklinikum Köln GmbH are current appointments, filed with Handelsregister (Commercial Register). Sebastian Werner Czerny, Johann Jennissen and Sara Freifrau Von Der Ropp all serve as Geschäftsführer (managing director). The remaining 2 records shown (Hans-Jürgen Hackenberg and René Kessel) are former appointments that have since been resigned.
The register reports 11 officers in total, including past appointments, though only the 5 most relevant records are shown here.
Management authority at RZK Radiologisches Zentrum am Universitätsklinikum Köln GmbH sits with these individuals, not with shareholders, who are covered separately and hold ownership rather than control.
The source filing doesn't specify representation authority — whether officers can act individually or must sign jointly to bind the company — so that detail isn't available here.
Group Structure
RZK Radiologisches Zentrum am Universitätsklinikum Köln GmbH sits 1 level below its ultimate parent, Universitätsklinikum Köln (AöR), registered in Germany. The full chain up to Universitätsklinikum Köln (AöR) is derived by walking shareholder filings across jurisdictions; no link in it is independently corroborated by RZK Radiologisches Zentrum am Universitätsklinikum Köln GmbH's own shareholder record.
Universitätsklinikum Köln (AöR)
Germany
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Frequently Asked Questions
Who owns RZK Radiologisches Zentrum am Universitätsklinikum Köln GmbH?
Four shareholders are currently on record for RZK Radiologisches Zentrum am Universitätsklinikum Köln GmbH, held on the Gesellschafterliste (shareholder list), filed under §40 of the GmbHG. The largest of these is Universitätsklinikum Köln -rechtsfähige Anstalt des öffentlichen Rechts des Landes Nordrhein-Westfalen-, holding 51% — a majority holding — followed by Jennissen, Johann Josef at 34%; the remaining 2 shareholders shown hold smaller stakes. 2 shareholders shown are companies, so the ownership chain continues above this level for those holdings; the other 2 are recorded as direct individual holders, though the record carries no UBO/PSC flag confirming beneficial-owner status.
Who is RZK Radiologisches Zentrum am Universitätsklinikum Köln GmbH's UBO (Ultimate Beneficial Owner)?
At least one shareholder recorded for RZK Radiologisches Zentrum am Universitätsklinikum Köln GmbH is a natural person. The record carries no dedicated UBO/PSC flag, so that holder is stated here as a recorded shareholder rather than a confirmed Ultimate Beneficial Owner (UBO).
How many shareholders does RZK Radiologisches Zentrum am Universitätsklinikum Köln GmbH have on record?
4 shareholders are shown on record for RZK Radiologisches Zentrum am Universitätsklinikum Köln GmbH.
What is RZK Radiologisches Zentrum am Universitätsklinikum Köln GmbH's company registration number?
RZK Radiologisches Zentrum am Universitätsklinikum Köln GmbH's registration number is HRB 67246 Köln, filed with Handelsregister (Commercial Register) in Germany. Its current status on the register is active.
Is RZK Radiologisches Zentrum am Universitätsklinikum Köln GmbH still an active company?
RZK Radiologisches Zentrum am Universitätsklinikum Köln GmbH's status on Handelsregister (Commercial Register) is listed as active.
What is RZK Radiologisches Zentrum am Universitätsklinikum Köln GmbH's registered address?
The registered address on file for RZK Radiologisches Zentrum am Universitätsklinikum Köln GmbH is Köln, Germany.
Who are the officers/directors of RZK Radiologisches Zentrum am Universitätsklinikum Köln GmbH?
Three of the 5 officer records shown for RZK Radiologisches Zentrum am Universitätsklinikum Köln GmbH are current appointments, filed with Handelsregister (Commercial Register). Sebastian Werner Czerny, Johann Jennissen and Sara Freifrau Von Der Ropp all serve as Geschäftsführer (managing director). The remaining 2 records shown (Hans-Jürgen Hackenberg and René Kessel) are former appointments that have since been resigned. Management authority at RZK Radiologisches Zentrum am Universitätsklinikum Köln GmbH sits with these individuals, not with shareholders, who are covered separately and hold ownership rather than control.
Does RZK Radiologisches Zentrum am Universitätsklinikum Köln GmbH have a parent company or subsidiaries?
RZK Radiologisches Zentrum am Universitätsklinikum Köln GmbH sits 1 level below its ultimate parent, Universitätsklinikum Köln (AöR), registered in Germany.
Can Zavia monitor changes to RZK Radiologisches Zentrum am Universitätsklinikum Köln GmbH's ownership over time?
This profile reflects a point-in-time snapshot from Handelsregister (Commercial Register). Zavia's monitoring API can track changes to RZK Radiologisches Zentrum am Universitätsklinikum Köln GmbH's registered shareholders, officers, and group structure going forward, flagging updates as they're filed rather than requiring a manual recheck.
Can I access RZK Radiologisches Zentrum am Universitätsklinikum Köln GmbH's data through an API?
Yes. Zavia's API connects directly to official government ownership registries across 195 countries and territories, including Germany, so records like RZK Radiologisches Zentrum am Universitätsklinikum Köln GmbH's registration, shareholder, UBO, and group-structure data can be queried programmatically instead of viewed one page at a time.
Where does this company information come from, and how current is it?
This record is sourced directly from Handelsregister (Commercial Register) and was last synced on 28 October 2026.