altona Diagnostics Holding GmbH
altona Diagnostics Holding GmbH is a Private limited company (Ltd.) registered in Germany under HRB 167108 Hamburg, and its current status with Handelsregister (Commercial Register) is active. Its registered address on file is Hamburg, Germany. 5 shareholders are on record for altona Diagnostics Holding 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 9 October 2026.
- Company fundamentals
- Corporate linkage & group structures
- Digitized company financials
- Firmographics — websites, social profiles, revenue and employee estimates
Shareholders
5
Five shareholders are currently on record for altona Diagnostics Holding GmbH, held on the Gesellschafterliste (shareholder list), filed under §40 of the GmbHG.
The largest of these is Dr. Ulrich Karl Walter Spengler, holding 21.8% — the largest recorded stake — followed by Laue Beteiligungs- und Verwaltungsgesellschaft mbH at 21.8%; the remaining 3 shareholders shown hold smaller stakes.
The register reports 13 shareholders in total, though only the top 5 by holding are shown in this view.
Every shareholder shown is an individual, recorded as a direct holder at this level; the record carries no UBO/PSC flag, so beneficial-owner status is not confirmed here.
| Shareholder | Type | Holding | Source Document |
|---|---|---|---|
| Dr. Ulrich Karl Walter Spengler | 21.8% | Handelsregister (Commercial Register) | |
| Laue Beteiligungs- und Verwaltungsgesellschaft mbH | 21.8% | Handelsregister (Commercial Register) | |
| BBV Bökenis Beteiligungs- und Verwaltungsgesellschaft mbH | 21.8% | Handelsregister (Commercial Register) | |
| Dr. Markus Heß | 11.2% | Handelsregister (Commercial Register) | |
| Michael Rosenblat | 7.1% | Handelsregister (Commercial Register) |
Officers
4
One of the 4 officer records shown for altona Diagnostics Holding GmbH is a current appointment, filed with Handelsregister (Commercial Register). Ulrich Spengler serves as Geschäftsführer (managing director). The remaining 3 records shown (Wilhelm Jörg Dreyer, Ulrich Karl Walter Spengler and 1 other) are former appointments that have since been resigned.
Management authority at altona Diagnostics Holding 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
altona Diagnostics Holding GmbH has no recorded parent company — it sits at the top of its own group structure, with 4 subsidiaries recorded beneath it across 1 jurisdiction. Each of these downward relationships is derived rather than filed: resolved by matching entities across the registry network, not stated directly in a single document.
Those 4 subsidiaries span Germany jurisdiction, though this list should not be read as complete — subsidiaries only become visible here where shareholder data has actually been filed with a register, so holdings in jurisdictions without that filing simply won't appear. One of the 4 go a level deeper still, with its own further subsidiaries recorded beneath it — additional ownership layers this view doesn't expand.
altona Diagnostics Holding GmbH
Germany
Get complete shareholder and officer records, ultimate beneficial owner resolution, and ongoing ownership monitoring.
Frequently Asked Questions
Who owns altona Diagnostics Holding GmbH?
Five shareholders are currently on record for altona Diagnostics Holding GmbH, held on the Gesellschafterliste (shareholder list), filed under §40 of the GmbHG. The largest of these is Dr. Ulrich Karl Walter Spengler, holding 21.8% — the largest recorded stake — followed by Laue Beteiligungs- und Verwaltungsgesellschaft mbH at 21.8%; the remaining 3 shareholders shown hold smaller stakes. Every shareholder shown is an individual, recorded as a direct holder at this level; the record carries no UBO/PSC flag, so beneficial-owner status is not confirmed here.
Who is altona Diagnostics Holding GmbH's UBO (Ultimate Beneficial Owner)?
At least one shareholder recorded for altona Diagnostics Holding 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 altona Diagnostics Holding GmbH have on record?
5 shareholders are shown on record for altona Diagnostics Holding GmbH. The register reports 13 in total; only the top 5 by holding are shown here.
What is altona Diagnostics Holding GmbH's company registration number?
altona Diagnostics Holding GmbH's registration number is HRB 167108 Hamburg, filed with Handelsregister (Commercial Register) in Germany. Its current status on the register is active.
Is altona Diagnostics Holding GmbH still an active company?
altona Diagnostics Holding GmbH's status on Handelsregister (Commercial Register) is listed as active.
What is altona Diagnostics Holding GmbH's registered address?
The registered address on file for altona Diagnostics Holding GmbH is Hamburg, Germany.
Who are the officers/directors of altona Diagnostics Holding GmbH?
One of the 4 officer records shown for altona Diagnostics Holding GmbH is a current appointment, filed with Handelsregister (Commercial Register). Ulrich Spengler serves as Geschäftsführer (managing director). The remaining 3 records shown (Wilhelm Jörg Dreyer, Ulrich Karl Walter Spengler and 1 other) are former appointments that have since been resigned. Management authority at altona Diagnostics Holding GmbH sits with these individuals, not with shareholders, who are covered separately and hold ownership rather than control.
Does altona Diagnostics Holding GmbH have a parent company or subsidiaries?
altona Diagnostics Holding GmbH has no recorded parent company — it sits at the top of its own group structure, with 4 subsidiaries recorded beneath it across 1 jurisdiction. Those 4 subsidiaries span Germany jurisdiction, though this list should not be read as complete — subsidiaries only become visible here where shareholder data has actually been filed with a register, so holdings in jurisdictions without that filing simply won't appear. One of the 4 go a level deeper still, with its own further subsidiaries recorded beneath it — additional ownership layers this view doesn't expand.
Can Zavia monitor changes to altona Diagnostics Holding 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 altona Diagnostics Holding 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 altona Diagnostics Holding 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 altona Diagnostics Holding 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 9 October 2026.