Overview
MJ Engineering sells, installs and services domestic wastewater treatment plants, and provides rainwater recovery systems and industrial wastewater treatment plants. The company also offers consulting and investment supervision in Racibórz, Żory, Wodzisław Śląski and nearby towns.
- Monday–Friday
- 8:00–15:00
Financials
Revenue history (in k)
Filing timeliness
No financial statement for 2025 – the filing deadline has passed. 4 of 6 financial statements were filed late (the longest delay 493 days for 2022).
- 2025not filed
- 202428/09/2025
- 202321/11/2024
- 202219/11/2024
- 202113/10/2022
- 202015/10/2021
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, city, voivodeship and across Poland in 2024.
Results vs industry
Industry
Offer
- Domestic wastewater treatment plants
- Rainwater recovery systems
- Industrial wastewater treatment plants
- Investment consultancy
- Investment supervision
Website technology
- Analytics and marketing
- Google Analytics
Authorized Representatives
Manner of representation
Each member of the management board is independently authorized to make declarations and sign on behalf of the company.
Ownership
| Owner | Shares | Share value | Stake |
|---|---|---|---|
| 13 | $3,511.62 | 61.9048% | |
Wiktoria Nikola Swaczynaage 31 | 8 | $2,160.99 | 38.0952% |
Mariusz Kazimierz Swaczyna and Wiktoria Nikola Swaczyna hold a combined 100% – the ownership structure indicates family control.
Beneficial owners
| Person | Rights |
|---|---|
Subsidiaries
| Name | Share value | Stake | ||
|---|---|---|---|---|
Immensitysp. z o.o. | 3,349.54 USD | 62% |
Bank accounts
Was a VAT taxpayer from 2025-08-15 to 2026-02-25.
Reason for removal: Art. 96 ust. 9a pkt 2 (VAT returns not filed for 3 consecutive months or a quarter)
Debt
6 active proceedings recorded in KRZ.
| Registration date | Proceeding type | Status | |
|---|---|---|---|
| Jul 27, 2026 | Petition to declare entrepreneur bankruptcy | In progress | |
| Apr 20, 2026 | Discontinued enforcement proceedings | Closed | |
| Dec 1, 2023 | Discontinued enforcement proceedings | Closed | |
| Dec 1, 2023 | Discontinued enforcement proceedings | Closed | |
| Oct 24, 2023 | Discontinued enforcement proceedings | Closed |
MSiG notices
| Publication date | Event | |
|---|---|---|
| May 27, 2024 | Dissolution without liquidation opened | |
| Feb 17, 2016 | Dissolution without liquidation opened |
Public aid
6 public aid cases recorded, with a total value of $66,958.
| Grant date | Purpose | Gross amount | Granting body | |
|---|---|---|---|---|
| Apr 7, 2021 | Other crisis aid | $13,841$13,841 | Prezydent Miasta Rybnik | |
| Jun 20, 2020 | Aid compensating for the negative economic consequences of COVID-19, granted in limited amounts | $1,757$1,757 | Prezes Zakładu Ubezpieczeń Społecznych | |
| Jun 15, 2020 | Aid compensating for the negative economic consequences of COVID-19, granted in limited amounts | $46,156$46,156 | Polski Fundusz Rozwoju S.A. |
Competitors
| Name | Revenue | Website | ||
|---|---|---|---|---|
| TWÓRsp. z o.o. | $225,944.09 | twor.com.pl | ||
| Instalzbytsp. z o.o. | $132,100.41 | instalzbyt.com.pl | ||
| STWIsp. z o.o. | $118,228.25 | stwi.pl | ||
| S.E.M. Serwissp. z o.o. | $100,827.67 | semserwis.pl | ||
| Votre Projektsp. z o.o. | $90,620.30 | votreprojekt.pl | ||
| J-Inspectsp. z o.o. | $85,528.98 | j-inspect.pl | ||
| MIR Technologysp. z o.o. | $69,002.35 | mirtechnology.pl | ||
| JTS Engineeringsp. z o.o. | $64,943.61 | jtsengineering.pl | ||
| MAX Solutionssp. z o.o. | $50,309.03 | maxsolutions.com.pl | ||
| WM EngineeringS.A. | $33,664.36 | wm-engineering.pl |
Change history
| Date | Event | |
|---|---|---|
| 2024-10-04 | Address change (Rybnik → Ul. Żorska 281, 44-251, Rybnik) | |
| 2024-08-28 | Address change (Ul. Zebrzydowicka 180, 44-217, Rybnik → Rybnik) | |
| 2017-10-17 | Address change (Ul. Niedobczycka 75b, 44-218, Rybnik → Ul. Zebrzydowicka 180, 44-217, Rybnik) | |
| 2017-10-17 | PKD change (Removed: 19 codes; Added: 8 codes) | |
| 2016-01-19 | Address change (Wolnego 16, 44-200, Rybnik → Ul. Niedobczycka 75b, 44-218, Rybnik) |
FAQ
Last updated: 2026-04-17