Overview
Der-Mag is a leading provider of modern and reliable telecommunication systems, specializing in video surveillance systems, LAN networks, access control systems, intrusion detection, and fire alarm systems. The company offers comprehensive design, installation, and integration services for low-voltage telecommunication systems. Additionally, Der-Mag integrates various security systems through platforms like PSIM and BMS for data collection and management.
Financials
Revenue history (in m)
Data and insights are generated automatically based on financial statements and may contain errors. This analysis is for informational purposes only and does not constitute an official assessment of the company's credibility or business advice.
Statistics
How the company ranks by revenue within its industry, region and across Poland in 2025.
Results vs industry
News
Industry
Bank accounts
Registered as a VAT taxpayer on 2022-02-05. Active
75 1090 1072 0000 0001 6187 0139
84 1020 1462 0000 7902 0396 4921- 34 1020 1475 0000 8102 0219 9420
Debt
No entries in the National Debtors Register (KRZ). No proceedings in KRZ
Public aid
25 public aid cases recorded, with a total value of $135,525.
| Grant date | Purpose | Gross amount | Granting body | |
|---|---|---|---|---|
| Jun 25, 2026 | De minimis aid (in accordance with Commission Regulation 2023/2831) | $11,036$11,036 | Prezes Banku Gospodarstwa Krajowego | |
| Mar 16, 2026 | De minimis aid (in accordance with Commission Regulation 2023/2831) | $531$531 | Marszałek Województwa Kujawsko-Pomorskiego | |
| Mar 13, 2026 | De minimis aid (in accordance with Commission Regulation 2023/2831) | $24,491$24,491 | Prezes Banku Gospodarstwa Krajowego |
Tenders
No recorded participation in tenders.
Regulatory authorisations
| Authority | Type | Status | |
|---|---|---|---|
 BDO | BDO register entry | Active |
Authorized Representatives
Manner of representation
If the management board is a one-person management board, the company has independent representation. If the management board consists of more than one person, the company must be represented by the joint action of two members of the management board or by one member of the management board jointly with a commercial proxy (joint representation), whereby the President of the Management Board is entitled to represent the company independently (independent representation).
Ownership
| Owner | Shares | Share value | Stake |
|---|---|---|---|
Jacek Michał Birkholz (46) | 2,670 | $72,123.18 | 89% |
Others | 330 | $8,914.10 | 11% |
Beneficial owners
| Person | Rights | |
|---|---|---|
Jacek Michał Birkholz (46)  | Shareholder of a limited liability company, 285000.0 PLN |
Subsidiaries
| Name | Share value | Stake | ||
|---|---|---|---|---|
Der-Mag Serwissp. z o.o. | 1,350.62 USD | 100% |
Competitors
| Name | Revenue | Website | ||
|---|---|---|---|---|
| EL - Darsp. z o.o. | $12,830,828.05 | el-dar.bydgoszcz.pl | ||
| Elmax Żywickisp. z o.o. | $8,412,304.34 | elmax.tychy.pl | ||
| ProdusS.A. | $7,951,833.60 | produs.com.pl | ||
| Provisionsp. z o.o. | $4,514,158.83 | provision.com.pl | ||
| Uruchomienia.Eusp. z o.o. | $3,452,416.27 | uruchomienia.eu | ||
| Enitelsp. z o.o. | $3,090,785.06 | enitel.pl | ||
| Fides Alarmsp. z o.o. | $2,852,488.96 | fidesalarm.pl | ||
| All-Antsp. z o.o. | $2,566,888.60 | all-ant.pl | ||
| NAT One Investsp. z o.o. | $2,478,310.30 | natone.pl | ||
| Soia.Prosp. z o.o. | $2,317,179.60 | soia.pro |
Change history
| Date | Event | |
|---|---|---|
| 2022-07-04 | Address change (Ul. Ks. Zygmunta Trybowskiego 7/9, 85-796, Bydgoszcz → Ul. Magazynowa 11/28, 85-790, Bydgoszcz) | |
| 2022-07-04 | PKD change (Removed: 33.20.Z; Added: 80.20.Z) | |
| 2022-02-02 | Entered in the register |
FAQ
Last updated: 2026-10-07