Biolab Umweltanalysen GmbH
Biolab Umweltanalysen GmbH is a Private limited company (Ltd.) registered in Germany under HRB 3263 Braunschweig, and its current status with Handelsregister (Commercial Register) is active. Its registered address on file is Braunschweig, Germany. 5 shareholders are on record for Biolab Umweltanalysen GmbH, and since every one of them is a company rather than an individual, this particular filing does not on its own establish an ultimate beneficial owner (UBO) — identifying one would mean tracing the ownership of each shareholding company in turn. This profile is sourced directly from Handelsregister (Commercial Register) and was last updated on 28 October 2026.
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Shareholders
5
Five shareholders are currently on record for Biolab Umweltanalysen GmbH, held on the Gesellschafterliste (shareholder list), filed under §40 of the GmbHG.
The largest of these is UCL Umwelt Control Labor GmbH, holding 24% — the largest recorded stake — followed by UCL Umwelt Control Labor GmbH at 20%; the remaining 3 shareholders shown hold smaller stakes.
Because every shareholder shown is a company rather than an individual, the ownership chain continues above this level, and no beneficial owner can be established from this filing alone.
| Shareholder | Type | Holding | Source Document |
|---|---|---|---|
| UCL Umwelt Control Labor GmbH | 24% | Handelsregister (Commercial Register) | |
| UCL Umwelt Control Labor GmbH | 20% | Handelsregister (Commercial Register) | |
| UCL Umwelt Control Labor GmbH | 20% | Handelsregister (Commercial Register) | |
| UCL Umwelt Control Labor GmbH | 20% | Handelsregister (Commercial Register) | |
| UCL Umwelt Control Labor GmbH | 16% | Handelsregister (Commercial Register) |
Officers
5
Two of the 5 officer records shown for Biolab Umweltanalysen GmbH are current appointments, filed with Handelsregister (Commercial Register). Max Rückriem (appointed 2022-09-02) and Jörg Seigner both serve as Geschäftsführer (managing director). The remaining 3 records shown (André Thorsten Nientiedt, Silvio Löderbusch and 1 other) are former appointments that have since been resigned.
Management authority at Biolab Umweltanalysen 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
Biolab Umweltanalysen GmbH sits 5 levels below its ultimate parent, Rethmann SE & Co. KG, registered in Germany. Immediately above Biolab Umweltanalysen GmbH is UCL Umwelt Control Labor GmbH, holding 100% as filed in Biolab Umweltanalysen GmbH's own shareholder record with Handelsregister (Commercial Register). Rethmann SE & Co. KG sits further up the chain, a link derived by walking shareholder filings across jurisdictions rather than stated in a single document.
Rethmann SE & Co. KG
Germany
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Frequently Asked Questions
Who owns Biolab Umweltanalysen GmbH?
Five shareholders are currently on record for Biolab Umweltanalysen GmbH, held on the Gesellschafterliste (shareholder list), filed under §40 of the GmbHG. The largest of these is UCL Umwelt Control Labor GmbH, holding 24% — the largest recorded stake — followed by UCL Umwelt Control Labor GmbH at 20%; the remaining 3 shareholders shown hold smaller stakes. Because every shareholder shown is a company rather than an individual, the ownership chain continues above this level, and no beneficial owner can be established from this filing alone.
Who is Biolab Umweltanalysen GmbH's UBO (Ultimate Beneficial Owner)?
Every shareholder recorded for Biolab Umweltanalysen GmbH is itself a company rather than a natural person, so no Ultimate Beneficial Owner (UBO) is identified at this level; establishing one would require tracing the ownership of each shareholding company in turn.
How many shareholders does Biolab Umweltanalysen GmbH have on record?
5 shareholders are shown on record for Biolab Umweltanalysen GmbH.
What is Biolab Umweltanalysen GmbH's company registration number?
Biolab Umweltanalysen GmbH's registration number is HRB 3263 Braunschweig, filed with Handelsregister (Commercial Register) in Germany. Its current status on the register is active.
Is Biolab Umweltanalysen GmbH still an active company?
Biolab Umweltanalysen GmbH's status on Handelsregister (Commercial Register) is listed as active.
What is Biolab Umweltanalysen GmbH's registered address?
The registered address on file for Biolab Umweltanalysen GmbH is Braunschweig, Germany.
Who are the officers/directors of Biolab Umweltanalysen GmbH?
Two of the 5 officer records shown for Biolab Umweltanalysen GmbH are current appointments, filed with Handelsregister (Commercial Register). Max Rückriem (appointed 2022-09-02) and Jörg Seigner both serve as Geschäftsführer (managing director). The remaining 3 records shown (André Thorsten Nientiedt, Silvio Löderbusch and 1 other) are former appointments that have since been resigned. Management authority at Biolab Umweltanalysen GmbH sits with these individuals, not with shareholders, who are covered separately and hold ownership rather than control.
Does Biolab Umweltanalysen GmbH have a parent company or subsidiaries?
Biolab Umweltanalysen GmbH sits 5 levels below its ultimate parent, Rethmann SE & Co. KG, registered in Germany.
Can Zavia monitor changes to Biolab Umweltanalysen 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 Biolab Umweltanalysen 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 Biolab Umweltanalysen 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 Biolab Umweltanalysen 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.