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October 2, 2025

Penetration Testing Companies in Czech Republic 2025 (Reviewed)

Czech firms face rising attacks and GDPR/NÚKIB pressure compare top pentesters, PTaaS options, and real costs.

Mohammed Khalil

Mohammed Khalil

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Penetration Testing Companies Czech Republic

What Is Penetration Testing?

Flow diagram of a penetration test: reconnaissance, scanning, manual exploitation and chaining, pivoting, reporting, and retesting following OWASP/NIST

Penetration testing or pentesting is the practice of simulating cyber attacks on a system to find security holes before criminals can exploit them. As OWASP explains, it’s the art of testing a running application to find security vulnerabilities, with the tester acting like an attacker.

In the Czech Republic, pentesting is not just a buzzword NÚKIB the Czech cybersecurity agency explicitly encourages it as a preventive measure, describing pentests as a legal attempt to access tested systems resulting in a report of security gaps.

EU regulations add urgency for example, GDPR Article 32 requires organizations to regularly test their security often achieved through pentests , with failure risking fines up to €20 million or 4% of annual turnover. In short, Czech firms in 2025 need strong pentest partners to stay secure and compliant.

Why Pentesting Matters in 2025

Timeline contrasting one-off annual pentesting with continuous PTaaS coverage aligned to frequent deployments.

The cyber landscape in 2025 is harsher than ever. Attacks are becoming more automated and AI driven. For example, IBM’s 2025 breach report found the average cost of a data breach at roughly $4.4 million, which despite some improvements still reflects massive financial risk.

Verizon’s 2025 Data Breach Investigations Report reveals a 34% jump in breaches due to known vulnerabilities. In short, attackers are fast exploiting new CVEs almost immediately and costly. Compounding this, regulations and client demands force companies to prove they’ve done their due diligence.

Alongside GDPR, many Czech firms follow ISO/IEC 27001, PCI DSS, or even HIPAA standards all of which call for routine vulnerability testing or pentesting as part of a sound security program.In practice, this means choosing a reputable pentesting company is critical.

The right firm can uncover the gaps your own scans miss. Top Czech pentest providers perform hands-on, expert analysis not just automated scans of your systems from internet facing web apps to internal networks, mobile apps, cloud infrastructure, and even social engineering tests.

They align with NIST SP 800 115 and OWASP guidelines, often offering both black box no prior info and white box full code access approaches. Regular pentests and increasingly continuous pentesting help ensure that by the time a real attacker strikes, your organization has already identified and patched the weak points.

As the chart above shows, continuous or rolling pentesting leaves far smaller exploit windows than an annual test.

Top Pentesting Companies in Czech Republic 2025

Here are some of the leading pentest firms serving Czech organizations headquartered in Czechia unless noted :

DeepStrike Manual PTaaS with Global Reach

DeepStrike.io homepage promoting penetration testing with Revolutionizing Pentesting tagline

DeepStrike is a US headquartered but globally active PTaaS provider, included here for its track record in Czechia. Its manual first, compliance ready, continuous testing model makes it an attractive option for Czech organizations seeking international level expertise with flexible, on demand delivery.

Integra Prague Based Full Scope Security Consultancy

Integra Czech Republic homepage presenting global IT talent and cybersecurity partner team photo

Integra is a Prague based consultancy delivering comprehensive pentesting and social engineering services. With its broad coverage and local expertise, it’s a trusted partner for Czech firms that require tailored, end to end offensive security testing.

Axians CZ Enterprise Focused Pentesting with Compliance Depth

Axians CZ website promoting IT services, digital transformation, and cybersecurity testing

Axians CZ, part of the global Axians brand, is a Prague based provider with expertise in network and web application pentesting for large enterprises. With a focus on energy, government, and regulated sectors, they bring compliance rigor and enterprise assurance to the Czech pentesting market.

Captes Boutique Pentesting with SDLC Integration

Captes Czech Republic homepage highlighting penetration testing and application vulnerability assessment

Captes is a Pardubice based boutique infosec firm offering deep pentests and code reviews for Czech enterprises and public sector clients. With its focus on SDLC integration and thorough manual testing, Captes provides practical, developer friendly assurance.

Sec4good Research Driven Red Team & Pentesting

Sec4Good Czech Republic homepage promoting penetration testing and phishing simulation services

Sec4good is a Prague based pentest and red team provider that combines technical depth with adversary style realism. By following the MITRE ATT&CK framework and focusing on unconventional flaws, Sec4good delivers cutting edge offensive security for Czech enterprises.

BDO Czech Republic Enterprise Pentesting within Full Risk Audits

BDO Czech Republic website section offering penetration testing services and methodology overview

BDO Czech Republic leverages its global Big 4 consulting network to deliver pentesting integrated with enterprise risk audits. Covering networks, applications, and code reviews, BDO is the go to for large organizations that need pentests embedded into full spectrum compliance and governance programs.

Aricoma Pentesting Across IT, ATMs & AI Systems

Aricoma Czech Republic homepage with tagline Today is just the beginning, cybersecurity consultancy services

Aricoma is a Prague based infosec consultancy offering comprehensive pentesting from IT to financial systems and AI environments. Their research driven approach and creative exploit development make them a leading Czech provider for both traditional and next generation security testing.

Redamp Security Brno Based SME Pentest Partner

Redamp Security Czech Republic homepage highlighting instant cybersecurity protection and compliance

Redamp Security, based in Brno, is a smaller Czech pentest boutique focused on SMEs and tech firms. With its hands-on, responsive approach and remediation first mindset, Redamp is trusted by local clients who need practical, affordable pentesting expertise.

EO Security Brno Based Red Team & Pentest Specialists

EO Security Czech Republic homepage featuring cybersecurity and information protection services

EO Security, based in Brno, is a pentest and red team consultancy serving startups and mid market firms. With multidisciplinary teams, custom built tools, and added training services, EO Security combines technical assurance with practical knowledge transfer.

SnapStack Secure Design & Pentesting for Tech Firms

SnapStack Czech Republic website promoting custom software engineering and technology solutions

SnapStack, based in Prague, is a pentest and secure design consultancy with strengths in web/mobile testing, code audits, and deployment reviews. For Czech tech firms seeking both bug discovery and proactive design advice, SnapStack delivers comprehensive, developer centric assurance.

Each of these companies typically follows a methodology like NIST SP 800 115 planning, reconnaissance, scanning, exploitation, and reporting.

They test against OWASP Top 10 vulnerabilities SQLi, XSS, SSRF, etc. and more advanced threats HTTP request smuggling, OAuth misconfig, SSRF exploits, etc. .

Many also examine business logic flaws that scanners miss. By comparing offerings and asking for sample reports, you can match your needs to the vendor’s strengths.

For example, Integra and Captes might highlight custom exploit development, whereas BDO and Axians emphasize compliance and broad coverage.

How to Choose the Right Provider Step by Step

printable checklist card with six steps for choosing a penetration testing provider: scope, goals/ROE, expertise/certifications, methodology/tools, deliverables/cost, and support/retesting
  1. Define Your Scope: Determine what needs testing web apps, mobile apps, network, cloud, IoT, etc. Include both external facing assets and critical internal systems. Remember to plan for internal vs external tests if both attacker perspectives matter.
  2. Set Goals and Constraints: Decide if you need just vulnerability finding or a full red team style simulation. Identify any rules out of hours testing, IP allowlists, etc. . Consider regulatory requirements GDPR Article 32, ISO 27001, PCI DSS 11.3, etc. . A mature pentest company will help shape these goals.
  3. Verify Expertise and Certifications: Look for certifications like OSCP, CREST, CISSP in the pen testing team. Check their track record. Have they done similar work in your industry? Ask for anonymized case studies or references. For example, if your concern is API security, ensure they know OWASP API Security Top 10 e.g. OWASP’s API6 Mass Assignment and related attacks.
  4. Evaluate Methodology: Ensure they use both automated scans and manual analysis. An expert will explain their tools Burp, Nmap, Metasploit, etc. and how they validate findings. Check if they mention the following known frameworks PTES, OWASP Testing Guide . Ask how they handle emerging threats. A good sign is if they reference recent CVEs e.g. We test for Log4Shell, SSRF, deserialization issues like DeepStrike’s approach .
  5. Compare Deliverables and Costs: Get sample reports or outlines they should be clear and prioritized critical, high, medium risks with remediation advice . Compare pricing models fixed package vs daily rates. In Czechia, expect pentest projects to cost tens of thousands of CZK per application or per week of work exact figures depend on scope . Avoid choosing solely by lowest bid quality matters more for security.
  6. Check Support and Retesting: Good providers offer post test support answering questions during fixes and possibly a short retest period for remediated issues. If they offer it, consider penetration testing as a service or periodic retesting. Having a continuous relationship e.g. quarterly scans ensures new vulnerabilities are caught.

What to Look for in a Pentesting Provider

Grid listing required service coverage and evaluation criteria like standards, certifications, internal/external testing, reporting quality, and compliance.

When evaluating top pentest firms, consider these factors:

Common Mistakes & Myths

Myth-versus-reality cards debunking common pentesting mistakes for Czech organizations

Czech organizations today cannot afford to ignore pentesting. The threat level is only going up sophisticated phishing now using AI generated content and ransomware dominate breaches, and loopholes in code SSRF, auth flaws are actively exploited.

By engaging a top pentest firm in the Czech Republic, you get expert eyes on your security from web and mobile apps to networks and cloud setups. These experts help you discover and fix vulnerabilities before attackers do, while also demonstrating compliance with GDPR, ISO, and other standards.

Ready to strengthen your defenses? The threats of 2025 demand more than awareness, they require action. If you're looking to validate your security posture, identify hidden risks, or build a resilient defense strategy, DeepStrike is here to help.

Dark call-to-action banner inviting Czech organizations to schedule a penetration test with DeepStrike

Our practitioners provide clear, actionable guidance to protect your business. Explore our penetration testing services and see how we can uncover vulnerabilities before attackers do. Drop us a line we’re always ready to dive in.

About the Author: Mohammed Khalil is a Cybersecurity Architect at DeepStrike, specializing in advanced penetration testing and offensive security operations. With certifications including CISSP, OSCP, and OSWE, he has led numerous red team engagements for Fortune 500 companies, focusing on cloud security, application vulnerabilities, and adversary emulation. His work involves dissecting complex attack chains and developing resilient defense strategies for clients in the finance, healthcare, and technology sectors.

FAQ

Penetration testing pen testing is an authorized security assessment where experts try to break into your systems apps, networks, etc. as an attacker would. It’s more thorough than a basic vulnerability scan. Pentesters use manual and automated methods to find flaws like SQL injection, XSS, SSRF, broken auth, etc. and help you fix them. Think of it as hiring ethical hackers to strengthen your cyber defenses.

It depends on risk level, but many standards suggest at least annually or after major updates. However, one yearly test leaves a long gap. If your business is critical finance, healthcare, e commerce , aim for more frequent testing e.g. semiannual or continuous . With modern attack rates and continuous integration, some firms now offer subscription based pentesting that runs constantly against your apps.

A vulnerability assessment is typically a broad automated scan that lists potential issues like outdated software or missing patches . Penetration testing goes deeper, it actively exploits vulnerabilities to demonstrate real world impact. The pentest ethically hacks your system to show how an attacker could compromise it. In short, assessments find problems, pentests confirm which ones are dangerous by exploiting them in a controlled way.

Prices vary widely by scope. A simple web app pentest might start in the tens of thousands of CZK, while large, complex engagements involving multiple apps, networks, etc. can run into the hundreds of thousands. Daily rates for experienced pentesters OSCP/OSWE certified often range from 20,000-40,000 CZK per day. Always get detailed quotes. The cheapest quote isn’t always the best depth of testing and quality of reporting are crucial for real value.

GDPR’s Article 32 calls for state of the art security measures, including regular testing of technical and organizational measures. This implies pentesting for systems storing EU personal data. While not explicitly saying pentest , regulators expect proactive security assessments. Failing to test could be seen as negligence if a breach happens. In the EU, non compliance fines can be huge up to €20M .

In black box pentesting, testers have no prior knowledge of your systems just as an outside hacker would . In white box testing, they have full access to source code, architecture diagrams, credentials to find deep issues. Black box tests real world attack paths, white box can reveal hidden backdoors or logic bugs. Some firms also offer gray box partial knowledge. The choice depends on your needs, often a mix of both yields the best coverage.

As outlined above, top Czech pentest firms include Integra, Axians CZ, Captes, Sec4good, BDO CZ, Aricoma, Redamp Security, EO Security, SnapStack, and others. Each has its specialties e.g. web vs network, small business vs enterprise and strengths. We recommend reviewing their websites and asking for references or sample reports. Ultimately, the best company depends on your specific needs, sector, budget, scope , but the ones mentioned here all have solid reputations.

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