Overview
Financials
Revenue history (in k)
Filing timeliness
Financial statements were filed on time, on average 38 days early. 2 of 6 audited by a statutory auditor.
- 202501/07/2026
- 202408/07/2025
- 202306/06/2024
- 202231/05/2023
- 202128/06/2022
- 202029/06/2021
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, city, voivodeship and across Poland in 2025.
Results vs industry
Industry
Public procurement
9 tenders recorded as contractor: 8 national ($672,932) and 1 EU ($1,017,236).
| Publication date | Subject | Amount | Contracting authority | |
|---|---|---|---|---|
| Aug 11, 2026 | Construction of traffic lights at pedestrian crossings in Sosnowiec. | –– | Miejski Zakład Usług Komunalnych | |
| Jan 14, 2026 | Maintenance, repairs, replacement of components and modifications to traffic lights in Bytom for 24 months | $1M$1,017,236 | Gmina Bytom – Miejski Zarząd Dróg i Mostów | |
| Sep 2, 2025 | Construction of temporary traffic lights at the intersection of ul. Braci Mieroszewskich and ul. Starocmentarna in Sosnowiec, together with ancillary works | $157.5K$157,534 | Miejski Zakład Usług Komunalnych |
ZIR-Sylwestrzak, Dumnicki is the contractor in 6 public sector contracts, worth USD 184.93k in total. They were signed with 4 public buyers.
| Signed on | Subject | Amount | Public buyer | |
|---|---|---|---|---|
| Oct 20, 2026 | Purchase of traffic signal materials | $2,878 | Miasto Siedlce | |
| Oct 12, 2026 | Provision of services consisting of:
1. Repair of the traffic lights at the intersection of ul. Armii Krajowej and ul. Szpitalna in Chorzów,
2. Repair of the audible traffic signal at the intersection of ul. Katowicka and ul. Krakusa in Chorzów,
3. Repair of the traffic signal detector at the intersection of ul. Katowicka and ul. Krakusa in Chorzów,
4. Repair of the traffic lights at the intersection of ul. Armii Krajowej and ul. Dąbrowskiego in Chorzów. | $2,191 | Miejski Zarząd Ulic I Mostów | |
| Sep 18, 2026 | 1) Repair of traffic lights at the intersection of ul. 3 Maja and ul. Floriańska in Chorzów
2) Repair of traffic lights at the intersection of ul. Batorego and ul. Włodarskiego in Chorzów. | $629.98 | Miejski Zarząd Ulic I Mostów |
Ownership
| Owner |
|---|
Artur Tomasz Dumnickiage 47 |
Władysław Jan Dumnickiage 75 |
Bartosz Wiktor Sylwestrzakage 45 |
Jakub Sylwestrzakage 34 |
Jolanta Aniela Sylwestrzakage 70 |
Marta Sylwestrzakage 41 |
Paulina Sylwestrzakage 34 |
Manner of representation
Each partner independently.
Beneficial owners
| Person | Rights |
|---|---|
Bank accounts
Registered as a VAT taxpayer on 1998-12-08.
05 1090 2011 0000 0005 3205 7525
17 1240 1037 1111 0011 5633 1266
31 1090 2011 0000 0001 4283 0492
Debt
No entries in the National Debtors Register (KRZ).
Public aid
19 public aid cases recorded, with a total value of $473,947.
| Grant date | Purpose | Gross amount | Granting body | |
|---|---|---|---|---|
| Jul 9, 2026 | Aid in the form of wage subsidies for employing workers with disabilities | $901$901 | Prezes Zarządu Państwowego Funduszu Rehabilitacji Osób Niepełnosprawnych | |
| Jun 11, 2026 | Aid in the form of wage subsidies for employing workers with disabilities | $901$901 | Prezes Zarządu Państwowego Funduszu Rehabilitacji Osób Niepełnosprawnych | |
| May 12, 2026 | Aid in the form of wage subsidies for employing workers with disabilities | $574$574 | Prezes Zarządu Państwowego Funduszu Rehabilitacji Osób Niepełnosprawnych |
Regulatory authorisations
| Authority | Type | Status | |
|---|---|---|---|
| BDO register entry | Active |
Competitors
| Name | Revenue | Website | ||
|---|---|---|---|---|
| Elmax Żywickisp. z o.o. | $8,412,304.34 | elmax.tychy.pl | ||
| Eltec Global Electricsp. z o.o. | $5,644,907.14 | e-eltec.pl | ||
| Logistics Packsp. z o.o. | $5,403,728.96 | logisticspack.pl | ||
| Instaltecsp. z o.o. | $5,069,806.20 | instaltec.pl | ||
| Elektrolexsp. z o.o. | $4,979,488.40 | elektrolex.pl | ||
| Alt-Energysp. z o.o. | $3,110,232.61 | alt-energy.pl | ||
| Heliosenergia.Plsp. z o.o. | $2,754,195.67 | heliosenergia.pl | ||
| Eltech- Systemsp. z o.o. | $2,485,845.95 | eltech-system.pl | ||
| Persemsp. z o.o. | $1,021,167.75 | persem.pl | ||
| Energokontraktsp. z o.o. | $328,784.53 | energokontrakt.pl |
Change history
| Date | Event | |
|---|---|---|
| 2021-06-30 | Name change (Zir - W.sylwiestrzak I → Zir-W.sylwestrzak I Spółka -) | |
| 2021-06-23 | Name change (Zakład Inżynierii Ruchu - W.sylwestrzak I Spółka → Zir - W.sylwiestrzak I) | |
| 2002-03-15 | Entered in the register |
FAQ
Last updated: 2026-10-04