What is the main business of MJJ Hydro?

The main business activity of MJJ Hydro focuses on plumbing, heat and air-conditioning installation.

When was the company founded?

The company was registered in the Polish National Court Register (KRS) on February 19, 2024.

Where is the headquarters located?

The headquarters is located at: ul. Wielicka 42, 30-552 Kraków.

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 June 1, 2024 to December 31, 2024.

What was the revenue?

In 2024, the company's revenue reached $444,252.

Is the company profitable?

Yes, in 2024 the company was profitable, achieving a net profit of $264,270.

Which cost dominates operating expenses?

The largest operating cost category falls under materials and energy. This category amounted to $175,369 in 2024, representing 98% of all operating expenses.

MJJ Hydrosp. z o.o.

Plumbing, heat and air-conditioning installation

KRS: NIP: REGON:

Overview

Status

Active

Registry date

2024-02-19

Share capital

5,000.00 PLN

Registered address

ul. Wielicka 42/B3, 30-552 Kraków, Poland

Electronic delivery address

AE:PL-56881-66955-HSEST-19

Financials

Revenue history (in k)

Financial insight

Estonian CIT: Equity includes non-zero Art. 28d line items – the company is taxed under the lump-sum regime on corporate income.

Filing timeliness

Financial statements were filed on time, on average 39 days early.

202506/07/2026
202408/05/2025

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, region and across Poland in 2025.

Results vs industry

Revenue

This companyUSD 1.93mMedianUSD 332.23kAverageUSD 1.34m

Net profit

This companyUSD 146.06kMedianUSD 13.85kAverageUSD 74.97k

Operating costs

This companyUSD 1.78mMedianUSD 302.34kAverageUSD 1.23m

Assets

This companyUSD 630.89kMedianUSD 193.21kAverageUSD 867.34k

Industry

Authorized Representatives

Grzegorz Daniel Spólnik – Management Board Member

Łukasz Konstanty Lewandowski – President of the Management Board

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
Bartosz Brunon Lewandowski	15	$202.59	15%
Łukasz Konstanty Lewandowskiage 43	35	$472.72	35%
Przemysław Krzysztof Lewandowskiage 47	15	$202.59	15%
Grzegorz Daniel Spólnikage 44	35	$472.72	35%

Łukasz Konstanty Lewandowski, Bartosz Brunon Lewandowski and Przemysław Krzysztof Lewandowski hold a combined 65% – the ownership structure indicates family control.

Beneficial owners

Person	Rights

Bank accounts

Registered as a VAT taxpayer on 2024-02-29.

PKO Bank Polski
25 1020 3453 0000 8702 0384 6417

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
ACE Groupsp. z o.o.	$3,194,183.13	grupaace.pl
InnotradeS.A.	$2,776,124.85	innotrade.pl
Flumenosp. z o.o.	$2,170,839.75	flumeno.pl
Klimasoft sp. z o.o.sp. k.	$1,404,550.77	klimasoft.pl
Palmersp. z o.o.	$1,184,241.36	palmer.com.pl
Eko-Galicjasp. z o.o.	$726,213.44	ekogalicja.pl
Atraxosp. z o.o.	$534,904.25	atraxo.pl
Fuecosp. z o.o.	$449,486.32	fueco.pro
Greenosp. z o.o.	$361,694.56	greeno.pl
Ekofrontsp. z o.o.	$331,061.75	ekofront.pl

FAQ

Last updated: 2026-07-09