sera GmbH
sera GmbH is a Private limited company (Ltd.) registered in Germany under HRB 16207 Kassel, and its current status with Handelsregister (Commercial Register) is active. Its registered address on file is Immenhausen, Germany. 4 shareholders are on record for sera 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 13 October 2026.
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Shareholders
4
Four shareholders are currently on record for sera GmbH, held on the Gesellschafterliste (shareholder list), filed under §40 of the GmbHG.
The largest of these is Elena Rahier, holding 33.3% — the largest recorded stake — followed by Carsten Rahier at 33.3%; the remaining 2 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.
| Shareholder | Type | Holding | Source Document |
|---|---|---|---|
| Elena Rahier | 33.3% | Handelsregister (Commercial Register) | |
| Carsten Rahier | 33.3% | Handelsregister (Commercial Register) | |
| Irena Rahier | 33.3% | Handelsregister (Commercial Register) | |
| Carsten Rahier | 0% | Handelsregister (Commercial Register) |
Officers
5
Four of the 5 officer records shown for sera GmbH are current appointments, filed with Handelsregister (Commercial Register). Irena Rahier and Carsten Rahier both serve as Geschäftsführer (managing director); Frank Kühneweg (appointed 2018-04-16) and Jasmin Katrina (appointed 2022-08-02) both serve as Officer. The remaining 1 record shown (Volker Schüßler) is a former appointment that has since been resigned.
The register reports 16 officers in total, including past appointments, though only the 5 most relevant records are shown here.
Management authority at sera 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
sera GmbH has no recorded parent company — it sits at the top of its own group structure, with 6 subsidiaries recorded beneath it across 5 jurisdictions. 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 6 subsidiaries span Germany, Austria, Switzerland, Netherlands, United Kingdom jurisdictions, 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 6 go a level deeper still, with its own further subsidiaries recorded beneath it — additional ownership layers this view doesn't expand.
sera GmbH
Germany
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Frequently Asked Questions
Who owns sera GmbH?
Four shareholders are currently on record for sera GmbH, held on the Gesellschafterliste (shareholder list), filed under §40 of the GmbHG. The largest of these is Elena Rahier, holding 33.3% — the largest recorded stake — followed by Carsten Rahier at 33.3%; the remaining 2 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 sera GmbH's UBO (Ultimate Beneficial Owner)?
At least one shareholder recorded for sera 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 sera GmbH have on record?
4 shareholders are shown on record for sera GmbH.
What is sera GmbH's company registration number?
sera GmbH's registration number is HRB 16207 Kassel, filed with Handelsregister (Commercial Register) in Germany. Its current status on the register is active.
Is sera GmbH still an active company?
sera GmbH's status on Handelsregister (Commercial Register) is listed as active.
What is sera GmbH's registered address?
The registered address on file for sera GmbH is Immenhausen, Germany.
Who are the officers/directors of sera GmbH?
Four of the 5 officer records shown for sera GmbH are current appointments, filed with Handelsregister (Commercial Register). Irena Rahier and Carsten Rahier both serve as Geschäftsführer (managing director); Frank Kühneweg (appointed 2018-04-16) and Jasmin Katrina (appointed 2022-08-02) both serve as Officer. The remaining 1 record shown (Volker Schüßler) is a former appointment that has since been resigned. Management authority at sera GmbH sits with these individuals, not with shareholders, who are covered separately and hold ownership rather than control.
Does sera GmbH have a parent company or subsidiaries?
sera GmbH has no recorded parent company — it sits at the top of its own group structure, with 6 subsidiaries recorded beneath it across 5 jurisdictions. Those 6 subsidiaries span Germany, Austria, Switzerland, Netherlands, United Kingdom jurisdictions, 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 6 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 sera 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 sera 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 sera 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 sera 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 13 October 2026.