What is the main business of M. J. Deweloper?

The main business activity of M. J. Deweloper focuses on realization of building projects related to erection of buildings.

When was the company founded?

The company was registered in the Polish National Court Register (KRS) on June 30, 2023.

Where is the headquarters located?

The headquarters is located at: ul. Henryka Sienkiewicza 1, 47-200 Kędzierzyn-Koźle.

Who is on the management board?

The management board includes Marek Joachim Jasiulek (President of the Management Board).

What is the share capital?

The share capital of the company is PLN 1,200,000 (approx. $324,149).

What period do the latest financial data cover?

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

What was the revenue?

In 2025, the company's revenue reached $2,849,829.

No, in 2025 the company was not profitable, reporting a net loss of $35,294. For comparison, in 2024 the loss was $165,034, meaning the company reduced its loss by 78.7%.

Which cost dominates operating expenses?

The largest operating cost category falls under other operating costs. This category amounted to $2,581,066 in 2025, representing 93% of all operating expenses.

M. J. Dewelopersp. z o.o.

Realization of building projects related to erection of buildings

KRS: NIP: REGON:

Overview

Status

Active

Registry date

2023-06-30

Share capital

1,200,000.00 PLN

Registered address

ul. Henryka Sienkiewicza 1/3b, 47-200 Kędzierzyn-Koźle, Poland

Electronic delivery address

AE:PL-48838-57002-GBHBS-20

Financials

Revenue history (in k)

Filing timeliness

Financial statements were filed on time, on average 29 days early. All were audited by a statutory auditor.

202511/06/2026
202411/06/2025
202327/06/2024

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 · Realization of building projects related to erection of buildings1,310 / 15,058

Top 8.7%

Division · Construction of buildings2,588 / 27,295

Top 9.5%

Sector · Construction2,778 / 30,480

Top 9.1%

City · Kędzierzyn-Koźle56 / 279

Top 20%

Voivodeship · Opolskie890 / 4,625

Top 19%

Country · Poland49,019 / 297,873

Top 16%

Results vs industry

Revenue

This companyUSD 2.85mMedianUSD 139.58kAverageUSD 1.43m

Net profit

This companyUSD -35.29kMedianUSD 273.74AverageUSD 142.63k

Operating costs

This companyUSD 2.77mMedianUSD 105.83kAverageUSD 1.16m

Assets

This companyUSD 2.87mMedianUSD 497.26kAverageUSD 3.93m

Industry

Authorized Representatives

Marek Joachim Jasiulek – President of the Management Board

Robert Tomasz Kmiecik – Attorney-in-fact (sole)

Manner of representation

Each member of the management board represents the company independently.

Ownership

Owner	Shares	Share value	Stake
Justyna Małgorzata Jasiulekage 49	36	$97,244.73	30%
Marek Joachim Jasiulekage 53	84	$226,904.38	70%

Marek Joachim Jasiulek and Justyna Małgorzata Jasiulek hold a combined 100% – the ownership structure indicates family control.

Beneficial owners

Person	Rights

Bank accounts

Registered as a VAT taxpayer on 2023-07-06.

Bank spółdzielczy
20 8882 1032 2001 0029 6244 0001
Bank spółdzielczy
63 8882 1032 2001 0029 6244 0003
Bank Polskiej Spółdzielczości (Grupa BPS)
57 1930 1028 2241 0270 1983 0001

Debt

No entries in the National Debtors Register (KRZ).

Public aid

No public aid cases recorded in the last 10 years.

Regulatory authorisations

Authority	Type	Status
BDO	BDO register entry	Active

Competitors

Name	Revenue	Website
Urbatzkasp. z o.o.	$1,671,665.08	urbacka.eu
Supreme Houses W1sp. z o.o. + limited partnership	$1,536,349.11	supremehouses.pl
Supreme Houses W1 15sp. z o.o. + limited partnership	$1,030,618.27	supremehouses.pl
Atikussp. z o.o.	$1,013,661.03	atikus.pl
RRH Buildingsp. z o.o.	$979,268.86	rrhbuilding.pl
Specbud Constructionsp. z o.o.	$860,012.72	specbudinvestment.pl
Construct Buildingsp. z o.o.	$704,981.14	construct.pl
Res-Wkbj Developmentsp. z o.o.	$455,076.79	reswkbj.pl
Ozimska 77 Paweł Wójcik i WspólnicyS.K.A.	$82,609.36	sindbaddom.pl
Umoya Energysp. z o.o.	$48,108.24	umoya.pl