Overview
MSJ Polska sells hydraulic parts and accessories and provides plumbing services. The company installs, repairs, and maintains hydraulic systems.
- Monday–Friday
- 7:00–17:00
- Saturday
- 8:00–12:00
Financials
Filing timeliness
No financial statement for 2025 – the filing deadline has passed. 1 of 1 financial statements was filed late (for 2024, 57 days late).
- 2025not filed
- 202410/09/2025
Data and insights are generated automatically from financial statements – they may contain errors and are neither a credit assessment nor business advice.
Statistics
How the company ranks by revenue within its industry, region and across Poland in 2024.
Results vs industry
Industry
Offer
- Plumbing systems
- External utility networks
- Internal installations
- Pump technology
- Heating technology
- Sanitary systems
- Installation maintenance
- Plumbing products
Website technology
- Online shop
- WooCommerce
- Website
- WordPress
- Elementor
Authorized Representatives
Manner of representation
Each member of the management board is authorised to make declarations on behalf of the company independently.
Ownership
| Owner | Shares | Share value | Stake |
|---|---|---|---|
Weronika Ostrowskaage 28 | 50 | $675.31 | 50% |
Mirosław Szymon Ostrowskiage 58 | 50 | $675.31 | 50% |
Mirosław Szymon Ostrowski and Weronika Ostrowska hold a combined 100% – the ownership structure indicates family control.
Beneficial owners
| Person | Rights |
|---|---|
Bank accounts
Registered as a VAT taxpayer on 2016-07-01.
Bank spółdzielczy41 9283 0006 0000 3271 2000 0010- Bank spółdzielczy62 9283 0006 0000 3271 2000 0020
- 59 1610 1306 2106 0360 0002 0001
Debt
No entries in the National Debtors Register (KRZ).
Public aid
| Grant date | Purpose | Gross amount | Granting body | |
|---|---|---|---|---|
| Feb 19, 2020 | De minimis aid (in accordance with Commission Regulation No 1407/2013 or earlier) | $209$209 | Prezes Zakładu Ubezpieczeń Społecznych |
Competitors
| Name | Revenue | Website | ||
|---|---|---|---|---|
| Minsbudsp. z o.o. | $4,373,300.71 | minsbud.pl | ||
| Hard-Plastsp. z o.o. | $2,312,686.85 | hardplast.pl | ||
| Service Developmentsp. z o.o. | $1,491,878.10 | sdevelopment.pl | ||
| MJM Systemsp. z o.o. | $1,064,580.11 | mjmsystem.pl | ||
| Optim Serwissp. z o.o. | $825,828.43 | optimserwis.pl | ||
| Site Service Polskasp. z o.o. | $453,671.04 | siteservice.pl | ||
| MC Controlsp. z o.o. | $418,252.29 | mccontrol.pl |
FAQ
Last updated: 2026-04-17