
Overview
M & K Zakład Sieci Sanitarnych has carried out land infrastructure projects since 1993, from design through construction. The company builds water and sewer, gas, and district heating networks and connections, including with trenchless methods, and installs sewage pumping stations, settling tanks, separators, and heat substations. It also performs earthworks, land drainage, and hydraulic engineering works.
Financials
Revenue history (in k)
Filing timeliness
Financial statements were filed on time, on average 49 days early. 1 of 6 audited by a statutory auditor.
- 202512/05/2026
- 202412/06/2025
- 202325/06/2024
- 202215/06/2023
- 202112/07/2022
- 202026/05/2021
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, region and across Poland in 2025.
Results vs industry
Industry
Public procurement
16 tenders recorded as contractor: 14 national ($5,645,795) and 2 EU ($6,142,267).
| Publication date | Subject | Amount | Contracting authority | |
|---|---|---|---|---|
| Sep 11, 2026 | Construction of a sanitary sewer network and water supply network in Chwalęcice | –– | Gmina Kłodawa | |
| Apr 10, 2026 | Successive construction of heating networks and connections for PGE Energia Ciepła S.A. Oddział w Gorzowie Wielkopolskim | $5.1M$5,102,289 | PGE Energia Ciepła S.A. | |
| Mar 23, 2026 | Expansion of the sanitary sewer network in Stare Kurowo | $626.8K$626,787 | Gmina Stare Kurowo |
M & K Zakład Sieci Sanitarnych is the contractor in 2 public sector contracts, worth USD 123.45k in total. They were signed with 2 public buyers.
| Signed on | Subject | Amount | Public buyer | |
|---|---|---|---|---|
| Sep 11, 2026 | Construction of a sanitary sewer network and water supply network in Chwalęcice | $92,383 | Gmina Kłodawa | |
| Sep 4, 2026 | Construction of a water supply network in Sulimierz | $31,064 | Urząd Miejski w Myśliborzu |
M & K Zakład Sieci Sanitarnych has been a party to 1 case before the National Appeal Chamber (since 2024). In 1 case it joined the proceedings as a participant.
| Date | Subject of dispute | Outcome | Other party | |
|---|---|---|---|---|
| Aug 21, 2024 | Judgment | Dismissed | Gmina Myślibórz |
Authorized Representatives
Manner of representation
Each member of the management board is entitled to make declarations of will on behalf of the company independently.
Ownership
| Owner | Shares | Share value | Stake |
|---|---|---|---|
Danuta Darczukage 76 | 16 | $2,160.99 | 16% |
Eugeniusz Bogusław Kleszykage 83 | 17 | $2,296.06 | 17% |
Anna Danuta Krzywoszyńskaage 42 | 51 | $3,444.08 | 25.5% |
Olga Jadwiga Muscat | 51 | $3,444.08 | 25.5% |
Others | 26 | $2,160.99 | 16% |
Beneficial owners
| Person | Rights |
|---|---|
Subsidiaries
| Name | Share value | Stake | ||
|---|---|---|---|---|
Ekomel-Holdingsp. z o.o. | 13,506.21 USD | 100% |
Bank accounts
Registered as a VAT taxpayer on 1993-07-05.
Bank spółdzielczy37 8363 0004 0031 1425 2000 0002
Bank spółdzielczy64 8363 0004 0031 1425 2000 0001
04 1050 1911 1000 0090 8079 2436
Debt
No entries in the National Debtors Register (KRZ).
Public aid
15 public aid cases recorded, with a total value of $264,840.
| Grant date | Purpose | Gross amount | Granting body | |
|---|---|---|---|---|
| Jul 28, 2026 | De minimis aid (in accordance with Commission Regulation 2023/2831) | $5,402$5,402 | Prezes Banku Gospodarstwa Krajowego | |
| May 7, 2026 | De minimis aid (in accordance with Commission Regulation 2023/2831) | $7,023$7,023 | Prezes Banku Gospodarstwa Krajowego | |
| Sep 12, 2024 | De minimis aid (in accordance with Commission Regulation 2023/2831) | $2,456$2,456 | Starosta Powiatu Gorzów Wielkopolski |
Regulatory authorisations
| Authority | Type | Status | |
|---|---|---|---|
| BDO register entry | Active |
Competitors
| Name | Revenue | Website | ||
|---|---|---|---|---|
| Przedsiębiorstwo Inżynieryjne San-Systemsp. z o.o. | $11,421,559.54 | san-system.com.pl | ||
| Fiszersp. z o.o. | $7,254,600.32 | fiszer.com.pl | ||
| Hydroinstalmetsp. z o.o. | $5,624,766.92 | hydroinstalmet.pl | ||
| Drensp. z o.o. | $4,492,945.31 | dren.com.pl | ||
| Hydromirex Świtońsp. k. | $3,588,620.15 | hydromirex.pl | ||
| Pneumatic-Systemsp. z o.o. | $2,616,244.76 | pneumatic-system.com.pl | ||
| PM Industrysp. z o.o. | $1,938,393.88 | pm-industry.pl | ||
| Inspolsp. z o.o. | $1,793,547.03 | inspol.pl | ||
| Investkansp. z o.o. + limited partnership | $1,745,963.79 | investkan.eu | ||
| Przedsiębiorstwo Inżynieryjno-Budowlane Zetpri-Ekosp. z o.o. | $1,726,481.66 | zetpri-eko.pl |
Change history
| Date | Event | |
|---|---|---|
| 2004-03-02 | Share capital increase (10,000.00 PLN → 50,000.00 PLN) | |
| 2002-02-01 | Entered in the register |
FAQ
Last updated: 2026-05-12