Cyber Rangers
Ethical hacking firm running penetration tests, red teaming and cyber training for companies and institutions in the Czech Republic
About Cyber Rangers
Cyber Rangers is a Czech cybersecurity company of ethical hackers. It tests the cyber resilience of organisations through penetration testing, red teaming, vulnerability scans and simulated attacks, and complements this with security consultancy, training and talks.
Its services are grouped into research and prevention (security GAP assessments, credential intelligence, vulnerability scans), resilience testing (web application and infrastructure penetration tests, DDoS simulation, red teaming) and security and know-how development (consultation, hardening, table-top exercises, hacker lectures, CYB3R Wars simulations). The company states that it does not sell packaged solutions and tailors its offering to each client's needs and security maturity.
The company was founded in 2019 and is headquartered in Kralupy nad Vltavou, Czech Republic. It publishes the CYB3R Club and other cybersecurity podcasts and runs the CYB3R Days conference.
Product: Penetration testing, red teaming, vulnerability scanning, security assessments, consultancy and cybersecurity training services.
Public contracts
Contracts Cyber Rangers signed since 1 Nov 2024, from the Slovak and Czech public contract registers. Values as published; amendments are not counted.
Customers
21 contracts with 10 buyers · 3.2M CZK
| Contracts | Value | |
|---|---|---|
| Český hydrometeorologický ústav | 4 | 1.1M CZK |
| Lesy České republiky, s.p. | 1 | 490k CZK |
| Pražská vodohospodářská společnost a.s. | 1 | 448k CZK |
| Středočeský kraj | 5 | 163k CZK |
| Správa železnic, státní organizace | 1 | 139k CZK |
| Statutární město Kladno | 1 | 126k CZK |
| Národní úřad pro kybernetickou a informační bezpečnost | 1 | 110k CZK |
| VŠEOBECNÁ ZDRAVOTNÍ POJIŠŤOVNA ČESKÉ REPUBLIKY | 1 | 92k CZK |
Open public tenders for Cyber Rangers →
Latest contracts
- 11 Aug 2026 for Statutární město Kladno · Konzultační a poradenské služby v oblasti kybernetické bezpečnosti - 32 hodin · 126k CZK register
- 22 Jun 2026 for Středočeský kraj · Konference Cyber days 2026 · 58k CZK register
- 4 Jun 2026 for Středočeský kraj · Konference CYB3R DAYS 2026 · 32k CZK register
- 2 Jun 2026 for VŠEOBECNÁ ZDRAVOTNÍ POJIŠŤOVNA ČESKÉ REPUBLIKY · Účast na konferenci Cyber Days 2026 · 92k CZK register
- 29 May 2026 for Dopravní podnik hl. m. Prahy, akciová společnost · Školení · 68k CZK register
- 11 May 2026 for Český hydrometeorologický ústav · - Dodav. kupní sml. krátkodobá-INV-STRO - Bezpečnostní testování Systému pro prověřování infrastruktury - climatic · 445k CZK register
Jobs at Cyber Rangers
Leadership
- Daniel Hejda · Co-Founder | Ethical HackerSource: business register
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Website technologies
Tools and platforms detected on this company’s website, grouped by purpose. Dates record when Evolc observed them.
Analytics
- Google Tag ManagerMedium confidence
- First detected
- Last detected
- Last checked
Detection evidence
- Integration code on pageinline script loader
Backend
- ASP.NETHigh confidence
- First detected
- Last detected
- Last checked
Detection evidence
- Response headerx-aspnet-version
- Response headerx-aspnet-version
- Response headerx-aspnet-version
Marketing & advertising
- Meta PixelMedium confidence
- First detected
- Last detected
- Last checked
Detection evidence
- Integration code on pageinitialization/configuration expression
- Integration code on pageinitialization/configuration expression
- Integration code on pageinitialization/configuration expression
Website detection does not establish a paid subscription or company-wide use. Tools loaded after consent or sign-in may be missed. “No longer observed” does not prove the company stopped using a tool.