MAZOWIECKI SZPITAL ONKOLOGICZNY SP. Z O.O.
MAZOWIECKI SZPITAL ONKOLOGICZNY SP. Z O.O. is a Private limited company (Ltd.) registered in Poland under 36948297000000, and its current status with National Court Register (KRS) is active. The company was incorporated on 13 February 2018 and lists its registered address as WARSZAWA, Poland. 1 shareholder is on record for MAZOWIECKI SZPITAL ONKOLOGICZNY SP. Z O.O., 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 National Court Register (KRS) and was last updated on 6 November 2026.
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Shareholders
1
One shareholder is currently on record for MAZOWIECKI SZPITAL ONKOLOGICZNY SP. Z O.O., filed with National Court Register (KRS).
The largest of these is Mirosław Cienkowski, holding 100% — a majority holding.
The 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 |
|---|---|---|---|
| Mirosław Cienkowski | 100% | National Court Register (KRS) |
Officers
4
Four officers are currently on record for MAZOWIECKI SZPITAL ONKOLOGICZNY SP. Z O.O., filed with National Court Register (KRS). Barbara Bauer and Aleksandra Cienkowska both serve as Member Of The Management Board; Justyna Świezek serves as President Of The Management Board; Miroslaw Cienkowski serves as Vice President Of The Management Board.
Management authority at MAZOWIECKI SZPITAL ONKOLOGICZNY SP. Z O.O. 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.
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Frequently Asked Questions
Who owns MAZOWIECKI SZPITAL ONKOLOGICZNY SP. Z O.O.?
One shareholder is currently on record for MAZOWIECKI SZPITAL ONKOLOGICZNY SP. Z O.O., filed with National Court Register (KRS). The largest of these is Mirosław Cienkowski, holding 100% — a majority holding. The 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 MAZOWIECKI SZPITAL ONKOLOGICZNY SP. Z O.O.'s UBO (Ultimate Beneficial Owner)?
At least one shareholder recorded for MAZOWIECKI SZPITAL ONKOLOGICZNY SP. Z O.O. 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 MAZOWIECKI SZPITAL ONKOLOGICZNY SP. Z O.O. have on record?
1 shareholder is shown on record for MAZOWIECKI SZPITAL ONKOLOGICZNY SP. Z O.O..
What is MAZOWIECKI SZPITAL ONKOLOGICZNY SP. Z O.O.'s company registration number?
MAZOWIECKI SZPITAL ONKOLOGICZNY SP. Z O.O.'s registration number is 36948297000000, filed with National Court Register (KRS) in Poland. Its current status on the register is active.
Is MAZOWIECKI SZPITAL ONKOLOGICZNY SP. Z O.O. still an active company?
MAZOWIECKI SZPITAL ONKOLOGICZNY SP. Z O.O.'s status on National Court Register (KRS) is listed as active.
When was MAZOWIECKI SZPITAL ONKOLOGICZNY SP. Z O.O. incorporated?
MAZOWIECKI SZPITAL ONKOLOGICZNY SP. Z O.O. was incorporated on 13 February 2018, according to National Court Register (KRS).
What is MAZOWIECKI SZPITAL ONKOLOGICZNY SP. Z O.O.'s registered address?
The registered address on file for MAZOWIECKI SZPITAL ONKOLOGICZNY SP. Z O.O. is WARSZAWA, Poland.
What legal structure is MAZOWIECKI SZPITAL ONKOLOGICZNY SP. Z O.O. registered as?
MAZOWIECKI SZPITAL ONKOLOGICZNY SP. Z O.O. is registered as a Private limited company (Ltd.) in Poland.
Who are the officers/directors of MAZOWIECKI SZPITAL ONKOLOGICZNY SP. Z O.O.?
Four officers are currently on record for MAZOWIECKI SZPITAL ONKOLOGICZNY SP. Z O.O., filed with National Court Register (KRS). Barbara Bauer and Aleksandra Cienkowska both serve as Member Of The Management Board; Justyna Świezek serves as President Of The Management Board; Miroslaw Cienkowski serves as Vice President Of The Management Board. Management authority at MAZOWIECKI SZPITAL ONKOLOGICZNY SP. Z O.O. sits with these individuals, not with shareholders, who are covered separately and hold ownership rather than control.
Can Zavia monitor changes to MAZOWIECKI SZPITAL ONKOLOGICZNY SP. Z O.O.'s ownership over time?
This profile reflects a point-in-time snapshot from National Court Register (KRS). Zavia's monitoring API can track changes to MAZOWIECKI SZPITAL ONKOLOGICZNY SP. Z O.O.'s registered shareholders, officers, and group structure going forward, flagging updates as they're filed rather than requiring a manual recheck.
Can I access MAZOWIECKI SZPITAL ONKOLOGICZNY SP. Z O.O.'s data through an API?
Yes. Zavia's API connects directly to official government ownership registries across 195 countries and territories, including Poland, so records like MAZOWIECKI SZPITAL ONKOLOGICZNY SP. Z O.O.'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 National Court Register (KRS) and was last synced on 6 November 2026.