What is the main business of Mastir?

The main business activity of Mastir focuses on renting and operating of own or leased real estate.

When was the company founded?

The company was registered in the Polish National Court Register (KRS) on January 18, 2016.

Where is the headquarters located?

The headquarters is located at: ul. Lubelska 43A, 10-410 Olsztyn.

Who is on the management board?

The management board includes Tomasz Józef Szczepański (President of the Management Board).

What is the share capital?

The share capital of the company is PLN 50,000 (approx. $13,506).

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?

In 2025, the company generated total revenue of $631,511, representing a decrease of 88.9% compared to 2024.

Yes, in 2025 the company was profitable, achieving a net profit of $118,862, meaning the company decreased its profit by 96.9%.

What is the main operating cost?

The largest operating cost category falls under materials and energy. This category amounted to $196,039 in 2025, representing 77% of all operating expenses.

Mastirsp. z o.o.

Renting and operating of own or leased real estate

KRS: NIP: REGON:

Overview

Status

Active

Registry date

2016-01-18

Share capital

50,000.00 PLN

Registered address

ul. Lubelska 43A, 10-410 Olsztyn, Poland

Electronic delivery address

AE:PL-24625-42456-ESJWB-21

Financials

Revenue history (in k)

Filing timeliness

Financial statements were filed on time, on average 33 days early.

202530/06/2026
202428/04/2025
202303/06/2024
202228/06/2023
202107/07/2022
202006/09/2021

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 631.51kMedianUSD 193.89kAverageUSD 1.37m

Net profit

This companyUSD 118.86kMedianUSD 7.25kAverageUSD 125.97k

Operating costs

This companyUSD 253.84kMedianUSD 132.31kAverageUSD 940.82k

Assets

This companyUSD 3.51mMedianUSD 763.97kAverageUSD 6.95m

Industry

Authorized Representatives

Ireneusz Andrzej Sobieski – Attorney-in-fact (sole)

Tomasz Józef Szczepański – President of the Management Board

Manner of representation

The following are authorized to make declarations of will and sign on behalf of the company: the President of the Management Board or the Vice-President independently, or two members of the management board jointly, or a member of the management board jointly with a commercial proxy.

Ownership

Owner	Shares	Share value	Stake
Fundacja Sobieski Fundacja Rodzinna	334	$13,506.21	100%

Beneficial owners

Person	Rights

Bank accounts

Registered as a VAT taxpayer on 2016-01-28.

ING Bank Śląski
21 1050 1764 1000 0090 3080 5601
ING Bank Śląski
41 1050 1764 1000 0090 8166 6803
ING Bank Śląski
22 1050 1764 1000 0024 3272 6970

Debt

No entries in the National Debtors Register (KRZ).

Real estate

Type	Amount
Land (incl. perpetual usufruct)	$2M$1,983,879
Buildings and premises	$1.5M$1,472,522

Secured liabilities

Type	Creditor
Other security	–

Public aid

No public aid cases recorded in the last 10 years.

Competitors

Name	Revenue	Website
Cezal OlsztynS.A.	$2,263,544.10	cezal.olsztyn.pl
Towarzystwo Budownictwa Społecznego Karosp. z o.o.	$1,592,180.62	karo.mragowo.pl
ZatokaS.A.	$1,392,306.34	zatoka-ostroda.pl
Perfect Investsp. z o.o.	$951,739.87	perfectinvest.pl
Rent4you Plsp. z o.o.	$725,959.30	rent4you.com.pl
Eskulap - Nieruchomościsp. z o.o.	$314,514.44	eskulapszczytno.wixsite.com
LAKE Rentalsp. z o.o.	$190,321.87	lakerental.pl
Reandersp. z o.o.	$51,398.81	reander.pl
Inspire Fundsp. z o.o.	$5,624.70	inspire-consulting.pl
Stacja Elblągsp. z o.o.	$0.00	stacjaelblag.pl