Overview
Diagnocar operates vehicle inspection stations in Bytom and Piekary Śląskie, as well as 24-hour self-service car washes in Bytom-Miechowice and Bytom-Stroszek. Founded in 1998, the company offers free SMS reminders for vehicle inspection deadlines.
- ul. Ks. J. Frenzla 11, 41-908 Bytom
- ul. Wł. Łokietka 2, 41-933 Bytom
- ul. Witczaka 137, 41-902 Bytom
- ul. Bytomska 280b, 41-940 Piekary Śląskie
- Monday–Friday
- 7:00–20:00
- Saturday
- 8:00–16:00
Financials
Revenue history (in k)
Filing timeliness
Financial statements were filed on time, on average 45 days early.
- 202531/03/2026
- 202401/04/2025
- 202328/06/2024
- 202230/06/2023
- 202128/06/2022
- 202004/10/2021
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
- Vehicle technical inspections
- Vehicle inspections
- Self-service car washes
- Inspection due-date notifications
Trademarks
Diagnocar holds 1 active trademark registered with the Polish Patent Office. The first mark was filed in 2013.
| Mark | Protected until | |
|---|---|---|
| DIAGNOCAR | Sep 27, 2033 |
Authorized Representatives
Manner of representation
Each member of the management board is authorised to represent the company independently.
Ownership
| Owner | Shares | Share value | Stake |
|---|---|---|---|
Jerzy Ryszard Ślęzakage 74 | 1,330 | $359,265.26 | 83.125% |
Marzena Maria Ślęzakage 51 | 270 | $72,933.55 | 16.875% |
Jerzy Ryszard Ślęzak and Marzena Maria Ślęzak hold a combined 100% – the ownership structure indicates family control.
Beneficial owners
| Person | Rights |
|---|---|
Bank accounts
Registered as a VAT taxpayer on 2011-02-16.
03 1020 2368 0000 2402 0385 7612
21 1050 1230 1000 0023 5322 8923
Debt
No entries in the National Debtors Register (KRZ).
Real estate
| Type | Amount |
|---|---|
Land (incl. perpetual usufruct) | $64,638$64,638 |
Buildings and premises | $210.8K$210,803 |
Public aid
| Grant date | Purpose | Gross amount | Granting body | |
|---|---|---|---|---|
| Jun 20, 2020 | Aid compensating for the negative economic consequences of COVID-19, granted in limited amounts | $1,298$1,298 | Prezes Zakładu Ubezpieczeń Społecznych | |
| May 30, 2020 | Aid compensating for the negative economic consequences of COVID-19, granted in limited amounts | $1,520$1,520 | Prezes Zakładu Ubezpieczeń Społecznych | |
| Apr 10, 2020 | Aid compensating for the negative economic consequences of COVID-19, granted in limited amounts | $1,282$1,282 | Prezydent Miasta Piekary Śląskie |
Competitors
| Name | Revenue | Website | ||
|---|---|---|---|---|
| Transcomplex Servicesp. z o.o. | $315,695.23 | transcomplex-service.pl | ||
| Multimotosp. z o.o. | $314,222.81 | multimoto.com.pl | ||
| RUMI Diagnosticsp. z o.o. | $302,251.33 | rumidiagnostic.pl | ||
| Ntigsp. z o.o. | $261,501.50 | ntig.pl | ||
| Matbis Plussp. z o.o. | $246,406.26 | matbisplus.pl | ||
| Serwmotsp. z o.o. | $152,072.86 | serwmot.pl | ||
| MS Autosportsp. z o.o. | $146,272.51 | msautosport.pl | ||
| Przedsiębiorstwo Handlowo-Usługowe Transmensp. z o.o. | $145,938.99 | transmen.pl | ||
| UNI Autosp. z o.o. | $138,812.79 | uniauto.com.pl | ||
| SKP Wiślanasp. z o.o. | $96,367.58 | skpwislana.pl |
Change history
| Date | Event | |
|---|---|---|
| 2019-12-07 | PKD change (Removed: 39 codes) | |
| 2012-04-19 | Address change (Kluczborska 29, 41-508, Chorzów → Bytomska 64, 41-940, Piekary Śląskie) | |
| 2011-01-07 | Entered in the register |
FAQ
Last updated: 2026-10-04