PST Grundbau GmbH
PST Grundbau GmbH is a Private limited company (Ltd.) registered in Germany under HRB 110171 B Charlottenburg (Berlin), and its current status with Handelsregister (Commercial Register) is active. The company was incorporated on 28 February 2003 and lists its registered address as Berlin, Germany. 1 shareholder is on record for PST Grundbau 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 26 October 2026.
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Shareholders
1
One shareholder is currently on record for PST Grundbau GmbH, held on the Gesellschafterliste (shareholder list), filed under §40 of the GmbHG.
The largest of these is Celler Brunnenbau Holding GmbH, holding 100% — a majority holding.
Because the 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 |
|---|---|---|---|
| Celler Brunnenbau Holding GmbH | 100% | Handelsregister (Commercial Register) |
Officers
5
Three of the 5 officer records shown for PST Grundbau GmbH are current appointments, filed with Handelsregister (Commercial Register). Oliver Ostrzinski and Ralph Schuster both serve as Geschäftsführer (managing director); Sebastian Jung (appointed 2016-01-01) serves as Officer. The remaining 2 records shown (Kai Nicolai and Uwe Detlof) 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 PST Grundbau 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
PST Grundbau GmbH sits 2 levels below its ultimate parent, Wietfeldt Familienstiftung, registered in Germany. 1 subsidiary is recorded beneath it, across 1 jurisdiction. Immediately above PST Grundbau GmbH is Celler Brunnenbau Holding GmbH, holding 100% as filed in PST Grundbau GmbH's own shareholder record with Handelsregister (Commercial Register). Wietfeldt Familienstiftung sits further up the chain, a link derived by walking shareholder filings across jurisdictions rather than stated in a single document. 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 1 subsidiary spans 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.
Wietfeldt Familienstiftung
Germany
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Frequently Asked Questions
Who owns PST Grundbau GmbH?
One shareholder is currently on record for PST Grundbau GmbH, held on the Gesellschafterliste (shareholder list), filed under §40 of the GmbHG. The largest of these is Celler Brunnenbau Holding GmbH, holding 100% — a majority holding. Because the 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 PST Grundbau GmbH's UBO (Ultimate Beneficial Owner)?
Every shareholder recorded for PST Grundbau 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 PST Grundbau GmbH have on record?
1 shareholder is shown on record for PST Grundbau GmbH.
What is PST Grundbau GmbH's company registration number?
PST Grundbau GmbH's registration number is HRB 110171 B Charlottenburg (Berlin), filed with Handelsregister (Commercial Register) in Germany. Its current status on the register is active.
Is PST Grundbau GmbH still an active company?
PST Grundbau GmbH's status on Handelsregister (Commercial Register) is listed as active.
When was PST Grundbau GmbH incorporated?
PST Grundbau GmbH was incorporated on 28 February 2003, according to Handelsregister (Commercial Register).
What is PST Grundbau GmbH's registered address?
The registered address on file for PST Grundbau GmbH is Berlin, Germany.
Who are the officers/directors of PST Grundbau GmbH?
Three of the 5 officer records shown for PST Grundbau GmbH are current appointments, filed with Handelsregister (Commercial Register). Oliver Ostrzinski and Ralph Schuster both serve as Geschäftsführer (managing director); Sebastian Jung (appointed 2016-01-01) serves as Officer. The remaining 2 records shown (Kai Nicolai and Uwe Detlof) are former appointments that have since been resigned. Management authority at PST Grundbau GmbH sits with these individuals, not with shareholders, who are covered separately and hold ownership rather than control.
Does PST Grundbau GmbH have a parent company or subsidiaries?
PST Grundbau GmbH sits 2 levels below its ultimate parent, Wietfeldt Familienstiftung, registered in Germany. 1 subsidiary is recorded beneath it, across 1 jurisdiction. Those 1 subsidiary spans 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.
Can Zavia monitor changes to PST Grundbau 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 PST Grundbau 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 PST Grundbau 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 PST Grundbau 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.