Overview
Markost is a construction company delivering water and wastewater infrastructure projects. Its services include building retention tanks, water supply networks, household wastewater treatment plants and water pumping stations, as well as general construction work.
Financials
Revenue history (in k)
Filing timeliness
Financial statements were filed on time, on average 31 days early.
- 202513/07/2026
- 202430/06/2025
- 202304/07/2024
- 202211/07/2023
- 202124/05/2022
- 202005/07/2021
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
Offer
- Construction of retention tanks
- Construction of water supply networks
- Construction of household wastewater treatment plants
- Construction of water pumping stations
- General construction works
Website technology
- Online shop
- WooCommerce
- Website
- WordPress
- Elementor
Public procurement
10 tenders recorded as contractor, with a total value of $8,256,996.
| Publication date | Subject | Amount | Contracting authority | |
|---|---|---|---|---|
| Aug 10, 2026 | Construction of a water treatment plant. | –– | Miasto i Gmina Piotrków Kujawski | |
| Jul 22, 2026 | Construction of an additional (emergency) 200 m3 storage tank for treated water intended for human consumption, together with associated infrastructure, at Stacja Uzdatniania Wody in Wtelno. | $288.1K$288,063 | Gmina Koronowo | |
| May 20, 2026 | Automation of the water treatment plant in Mezowo | $267.5K$267,464 | Kartuskie Przedsiębiorstwo Wodociągów I Kanalizacji sp. z o.o. |
Authorized Representatives
Manner of representation
Each member of the management board is authorized to make declarations on behalf of the company independently.
Ownership
| Owner | Shares | Share value | Stake |
|---|---|---|---|
Mariusz Gocelage 40 | 50 | $1,350.62 | 100% |
Beneficial owners
| Person | Rights |
|---|---|
Bank accounts
Registered as a VAT taxpayer on 2020-04-01.
97 1090 1450 0000 0001 6298 4020
61 1160 2202 0000 0005 4248 8114
Debt
No entries in the National Debtors Register (KRZ).
Public aid
No public aid cases recorded in the last 10 years.
Competitors
| Name | Revenue | Website | ||
|---|---|---|---|---|
| Kanussp. z o.o. | $12,020,119.82 | kanus.pl | ||
| Jamad Infrastrukturasp. z o.o. | $8,971,989.38 | jamadbudownictwo.pl | ||
| Przedsiębiorstwo Wod-Inżsp. z o.o. | $6,384,488.25 | wodinz.pl | ||
| Starconsp. z o.o. | $6,350,689.70 | starcon.com.pl | ||
| Gregoriensp. z o.o. | $5,575,705.54 | gregorien.com.pl | ||
| RG Invest Budsp. z o.o. | $5,117,967.49 | rginvestbud.pl | ||
| GIGA Investsp. z o.o. | $4,806,968.96 | giga-invest.pl | ||
| Konkret Mksp. z o.o. + limited partnership | $4,617,149.35 | konkretmk.pl | ||
| Merbedsp. z o.o. | $3,851,441.76 | merbed.pl | ||
| MAG Inwestsp. z o.o. | $2,517,518.25 | maginwest.pl |
Change history
| Date | Event | |
|---|---|---|
| 2022-08-01 | Address change (Ul. Święty Marcin 29/8, 61-806, Poznań → Kawalerów Maltańskich 13/2, 62-020, Rabowice) | |
| 2022-08-01 | Name change (James Handlung → Markost) | |
| 2022-08-01 | PKD change (Removed: 32, 41, 45, 47, 52, 55, 68, 73, 77, 82.11.Z; Added: 41.10.Z, 41.20.Z, 42.21.Z, 42.99.Z, 43.12.Z, 43.21.Z, 43.22.Z, 43.29.Z, 43.39.Z, 43.99.Z) | |
| 2020-02-27 | Entered in the register |
FAQ
Last updated: 2026-10-07