What is the main business of Hydrosystem?

The main business activity of Hydrosystem focuses on masonry work.

When was the company founded?

The company was registered in the Polish National Court Register (KRS) on April 2, 2024.

Where is the headquarters located?

The headquarters is located at: ul. Bielawska 14 A, 05-520 Konstancin-Jeziorna.

Who is on the management board?

The management board consists of: Radosław Krzysztof Sieradzki (President of the Management Board).

What is the share capital?

The share capital of the company is PLN 5,000 (approx. $1,351).

What period do the latest financial data cover?

The latest available financial statement covers the period from January 1, 2025 to December 31, 2025.

How much revenue was generated?

The company reported a revenue of $243,041 in 2025, which is a decrease of 9.9% compared to 2024.

Is the company profitable?

No, the company recorded a net loss of $69,356 in 2025.

What is the main operating cost?

The largest operating cost category falls under materials and energy. This category amounted to $167,339 in 2025, representing 54% of all operating expenses.

Hydrosystemsp. z o.o.

Roofing activities

KRS: NIP: REGON:

Overview

Status

Active

Registry date

2024-04-02

Share capital

5,000.00 PLN

Registered address

ul. Bielawska 14 A, 05-520 Konstancin-Jeziorna, Poland

Electronic delivery address

AE:PL-96574-28144-VETEB-18

Financials

Revenue history (in k)

Filing timeliness

Financial statements were filed on time, on average 1 day early.

202515/07/2026
202414/07/2025

Filed on timeDelayFiling deadline

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 2025.

Industry · Roofing activities236 / 459

Top 51%

Division · Specialised construction activities1,328 / 3,185

Top 42%

Sector · Construction13,595 / 30,475

Top 45%

City · Konstancin-Jeziorna102 / 200

Top 51%

Voivodeship · Mazowieckie39,505 / 77,210

Top 51%

Country · Poland156,833 / 298,279

Top 53%

Results vs industry

Revenue

This companyUSD 243.04kMedianUSD 258.89kAverageUSD 1.22m

Net profit

This companyUSD -69.36kMedianUSD 12.48kAverageUSD 62.17k

Operating costs

This companyUSD 311.36kMedianUSD 238.92kAverageUSD 1.13m

Assets

This companyUSD 98.75kMedianUSD 154.68kAverageUSD 755.55k

Industry

Authorized Representatives

Radosław Krzysztof Sieradzkiage 60 – President of the Management Board

Manner of representation

In the case of a one-person management board, the President of the Management Board independently, and in the case of a multi-member management board, the President of the Management Board independently, or two members of the management board acting jointly.

Ownership

Owner	Shares	Share value	Stake
Żaneta Małgorzata Sieradzkaage 60	95	$1,350.62	100%

Beneficial owners

Person	Rights

Bank accounts

Registered as a VAT taxpayer on 2024-04-15.

mBank
25 1140 2004 0000 3302 8474 7340

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
Ruukki Polskasp. z o.o.	$146,861,688.80	ruukki.com
Wulkan Ekosp. z o.o. + limited partnership	$3,484,173.45	wulkan.com.pl
Lechtimsp. z o.o. + limited partnership	$1,707,708.02	lechtim.pl
Eragasp. z o.o.	$798,805.93	eraga.com.pl
PTHsp. z o.o.	$722,844.77	proftech-dachy.pl
Delta Serwissp. z o.o.	$250,334.44	deltaserwis.com
Tectum Dachdesignsp. z o.o.	$237,606.69	tectum-dachdesign.pl
Erakosp. z o.o.	$207,541.76	erako.pl
Dachovosp. z o.o.	$66,612.72	dachovo.pl
ALPI Servicesp. z o.o.	$40,245.16	alpiservice.pl

FAQ

Last updated: 2026-07-15