sifin diagnostics gmbh
sifin diagnostics gmbh is a Private limited company (Ltd.) registered in Germany under HRB 43922 B Charlottenburg (Berlin), and its current status with Handelsregister (Commercial Register) is active. The company was incorporated on 19 December 1991 and lists its registered address as Berlin, Germany. 5 shareholders are on record for sifin diagnostics 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 26 October 2026.
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Shareholders
5
Five shareholders are currently on record for sifin diagnostics gmbh, held on the Gesellschafterliste (shareholder list), filed under §40 of the GmbHG.
The largest of these is Sonja Schwenkel, holding 45% — the largest recorded stake — followed by Lukas12 Verwaltungs GmbH at 39%; the remaining 3 shareholders shown hold smaller stakes.
The register reports 8 shareholders in total, though only the top 5 by holding are shown in this view.
3 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 |
|---|---|---|---|
| Sonja Schwenkel | 45% | Handelsregister (Commercial Register) | |
| Lukas12 Verwaltungs GmbH | 39% | Handelsregister (Commercial Register) | |
| Lukas12 Verwaltungs GmbH | 9.5% | Handelsregister (Commercial Register) | |
| Lukas12 Verwaltungs GmbH | 2% | Handelsregister (Commercial Register) | |
| Alexander Seefranz | 1.5% | Handelsregister (Commercial Register) |
Officers
5
Three of the 5 officer records shown for sifin diagnostics gmbh are current appointments, filed with Handelsregister (Commercial Register). Alexander Seefranz (appointed 2004-08-09) serves as Geschäftsführer (managing director); Susanne Krause (appointed 2019-04-11) and Julian Alexander Cornelissen both serve as Officer. The remaining 2 records shown (Martina Vasel and Anke Maaßen) are former appointments that have since been resigned.
The register reports 6 officers in total, including past appointments, though only the 5 most relevant records are shown here.
Management authority at sifin diagnostics 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
sifin diagnostics gmbh sits 1 level below its ultimate parent, Lukas12 Verwaltungs GmbH, registered in Germany. Immediately above sifin diagnostics gmbh is Lukas12 Verwaltungs GmbH, holding 50.5% as filed in sifin diagnostics gmbh's own shareholder record with Handelsregister (Commercial Register).
Lukas12 Verwaltungs GmbH
Germany
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Frequently Asked Questions
Who owns sifin diagnostics gmbh?
Five shareholders are currently on record for sifin diagnostics gmbh, held on the Gesellschafterliste (shareholder list), filed under §40 of the GmbHG. The largest of these is Sonja Schwenkel, holding 45% — the largest recorded stake — followed by Lukas12 Verwaltungs GmbH at 39%; the remaining 3 shareholders shown hold smaller stakes. 3 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 sifin diagnostics gmbh's UBO (Ultimate Beneficial Owner)?
At least one shareholder recorded for sifin diagnostics 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 sifin diagnostics gmbh have on record?
5 shareholders are shown on record for sifin diagnostics gmbh. The register reports 8 in total; only the top 5 by holding are shown here.
What is sifin diagnostics gmbh's company registration number?
sifin diagnostics gmbh's registration number is HRB 43922 B Charlottenburg (Berlin), filed with Handelsregister (Commercial Register) in Germany. Its current status on the register is active.
Is sifin diagnostics gmbh still an active company?
sifin diagnostics gmbh's status on Handelsregister (Commercial Register) is listed as active.
When was sifin diagnostics gmbh incorporated?
sifin diagnostics gmbh was incorporated on 19 December 1991, according to Handelsregister (Commercial Register).
What is sifin diagnostics gmbh's registered address?
The registered address on file for sifin diagnostics gmbh is Berlin, Germany.
Who are the officers/directors of sifin diagnostics gmbh?
Three of the 5 officer records shown for sifin diagnostics gmbh are current appointments, filed with Handelsregister (Commercial Register). Alexander Seefranz (appointed 2004-08-09) serves as Geschäftsführer (managing director); Susanne Krause (appointed 2019-04-11) and Julian Alexander Cornelissen both serve as Officer. The remaining 2 records shown (Martina Vasel and Anke Maaßen) are former appointments that have since been resigned. Management authority at sifin diagnostics gmbh sits with these individuals, not with shareholders, who are covered separately and hold ownership rather than control.
Does sifin diagnostics gmbh have a parent company or subsidiaries?
sifin diagnostics gmbh sits 1 level below its ultimate parent, Lukas12 Verwaltungs GmbH, registered in Germany.
Can Zavia monitor changes to sifin diagnostics 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 sifin diagnostics 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 sifin diagnostics 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 sifin diagnostics 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 26 October 2026.