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October 2, 2025

Updated: August 10, 2026

Top Penetration Testing Companies in the Czech Republic 2026

Compare 12 Czech and Czech-serving penetration testing providers by scope, delivery model, specialist fit, evidence quality, and buyer considerations.

Mohammed Khalil

Mohammed Khalil

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DeepStrike is ranked #1 in this 2026 shortlist of penetration testing companies serving organizations in the Czech Republic. The guide compares 12 providers using current public evidence on Czech-market relevance, testing scope, specialist depth, delivery model, methodology transparency, reporting, remediation support, and evidence quality. It is designed for security, engineering, compliance, and procurement teams building a defensible shortlist. The right provider still depends on the assets in scope, required assurance depth, on-site needs, regulatory context, data-handling constraints, reporting expectations, and the buyer’s ability to remediate findings.

Why this comparison exists

Czech buyers often need to compare very different delivery models: a local specialist who can work closely with engineering teams, an enterprise integrator that fits formal procurement, a niche lab for specialist assets, or a remote international provider for application and cloud work.

This guide is deliberately comparison-led. If you are looking specifically for DeepStrike's local service offering rather than a multi-provider shortlist, use the Czech Republic penetration testing service page.

There is no universal best provider. A defensible choice depends on the asset type, threat model, testing depth, reporting requirements, data-handling constraints, regulatory context, and how remediation and retesting will be managed.

How the companies were evaluated

The shortlist uses current first-party evidence and a consistent qualitative framework. The criteria are: confirmed penetration-testing capability; Czech headquarters, office, delivery presence, or explicit Czech-market relevance; testing-scope breadth; specialist depth; publicly documented methodology and deliverables; remote or on-site flexibility; reporting and remediation support where documented; and the quality and recency of public evidence.

No provider receives an invented score, star rating, or pseudo-scientific grade. The numbered order is an editorial shortlist, not a statistically validated league table.

At-a-glance comparison

RankCompanyCzech connection or delivery modelBest fitPublicly verified testing scopesDelivery modelEvidence caveat
1DeepStrikeRemote international specialist serving Czech organizationsManual-first, application/infrastructure-oriented buyers wanting a structured delivery workflowPenetration testing; service baseline supports multiple technical scopesRemote/project-based; broader commercial terms should be confirmedPublisher; no Czech office claimed; precise retesting/start-time terms intentionally omitted
2Integra CzechCzech deliveryLocal application and infrastructure testingApplication and infrastructure penetration testingLocal/project-basedReconfirm exact current sub-scopes and commercial terms
3Axians Czech RepublicCzech enterprise integratorEnterprise and public-sector procurementPenetration testing within broader cyber-security testingEnterprise/project-basedReconfirm exact current testing catalogue
4CAPTESCzech specialistWeb, mobile, infrastructure, and secure-development testingWeb, mobile, infrastructure, secure-development testingSpecialist/project-basedReconfirm current deliverables and retesting terms
5AEC, an ARICOMA Group companyCzech enterprise security providerTesting plus red-team or social-engineering needsPenetration testing, red teaming, social engineeringProject-basedConfirm current service-page structure and exact scope
6BDO Czech RepublicCzech advisory relationshipBuyers combining technical testing with broader cyber-risk workPenetration testing within cyber-risk/advisory servicesAdvisory/project-basedConfirm exact technical sub-scopes and independence requirements
7CitadeloCzech-market offensive-security relevanceOffensive security, red-team, and specialist engagementsPenetration testing, red-team, social-engineering/specialist security baselineSpecialist/project-basedReconfirm current Czech presence and precise scopes
8Sec4GoodPrague-based specialist baselineBuyers wanting a Czech security specialistPublic penetration-testing serviceLocal/project-basedPublic baseline confirms service; narrower sub-scopes should be reconfirmed
9Etnetera CoreCzech product/engineering contextProduct teams integrating security testing into software deliverySecurity testing integrated with software deliveryEngineering-integrated/project-basedReconfirm exact pentest sub-scopes and deliverables
10Auxilium Pentest LabsSpecialist technical labAutomotive, embedded, IoT, and hardware-oriented testingAutomotive, embedded, IoT, hardware security testing baselineSpecialist/lab-orientedConfirm current Czech-market delivery and engagement constraints
11EO Security / EO CyberBrno-linked offensive-security baselineTechnical testing plus trainingOffensive security, technical testing, trainingSpecialist/project-basedClarify current brand/entity and exact service catalogue
12MyCom SolutionsCzech local optionBuyers seeking a local penetration-testing providerPublic penetration-testing serviceLocal/project-basedReconfirm narrower scope, methodology, and deliverables

1. DeepStrike — best fit for manual-first remote delivery with a structured workflow

DeepStrike

Best fit: Czech organizations that can work with a remote international specialist and want a manual-first penetration-testing engagement with a buyer-facing delivery workflow.

Czech connection or delivery model: DeepStrike is the publisher of this guide and is included as a remote provider serving Czech organizations. This article does not claim a Czech office, Czech legal entity, or local Czech team.

Verified scope: The current DeepStrike service baseline supports penetration testing across multiple technical scopes. Buyers evaluating web-facing systems can review DeepStrike's broader penetration testing services separately from this comparison article.

Publicly supported differentiators: The same-day baseline supports manual-first and remote-friendly delivery plus a structured client workflow. The profile intentionally does not repeat inherited promises around exact start times, free retesting periods, or unlimited retesting because the production baseline identified potentially inconsistent public wording.

What buyers should confirm: exact asset scope, testing depth, communication workflow, reporting format, data handling, remediation support, retesting terms, scheduling, and commercial terms in the statement of work.

Evidence caveat: DeepStrike's #1 placement is editorial and disclosed. It should not be read as independent proof that DeepStrike is universally superior to Czech-local or specialist providers.

2. Integra Czech — best fit for local application and infrastructure testing

Integra Czech

Best fit: Organizations that value Czech delivery and want one provider to cover application and infrastructure testing.

Czech connection or delivery model: The same-day baseline identifies Integra Czech as an established Czech delivery option.

Verified scope: The baseline supports application and infrastructure penetration testing.

Publicly supported differentiator: Local delivery is the clearest buyer-relevant distinction in this comparison.

What buyers should confirm: whether the engagement covers the exact web, API, mobile, cloud, internal-network, external-network, or social-engineering components required; the reporting format; tester allocation; and retesting terms.

Evidence caveat: Avoid carrying forward old client, certification, project-volume, or methodology claims unless they are visible on the current first-party source at contracting time.

3. Axians Czech Republic — best fit for enterprise procurement and integration

Axians Czech Republic

Best fit: Larger organizations, public-sector buyers, and teams that value a broad enterprise technology relationship around security testing.

Czech connection or delivery model: Axians has Czech-market delivery in the production baseline.

Verified scope: The baseline confirms penetration testing within a broader cyber-security offering.

Publicly supported differentiator: Enterprise integration capacity and broad security coverage rather than a narrowly boutique testing model.

What buyers should confirm: the exact technical testing catalogue, which work is delivered by the Czech team, tester qualifications, subcontracting, independence, reporting depth, and retesting.

Evidence caveat: Do not infer sector clients, certifications, or specific methodologies from the broader Axians brand unless the Czech first-party service page states them.

4. CAPTES — best fit for application, infrastructure, and secure-development work

CAPTES

Best fit: Engineering-led buyers that want a Czech specialist across web, mobile, infrastructure, and secure-development testing.

Czech connection or delivery model: CAPTES is included as a Czech specialist in the same-day baseline.

Verified scope: Web, mobile, infrastructure, and secure-development testing are supported by the baseline.

Publicly supported differentiator: Its positioning is more specialist and development-adjacent than a broad enterprise advisory model.

What buyers should confirm: authenticated versus unauthenticated depth, code-access expectations, rules of engagement, report format, remediation collaboration, and retesting.

Evidence caveat: Do not add unsupported claims about customer types, certifications, exploit-development capability, or testing volume.

5. AEC, an ARICOMA Group company — best fit for testing plus broader offensive-security work

AEC, an ARICOMA Group company

Best fit: Larger Czech organizations that may need penetration testing alongside red-team or social-engineering services.

Czech connection or delivery model: AEC is included as a Czech-market provider within the ARICOMA group context.

Verified scope: The production baseline supports penetration testing, red teaming, and social engineering.

Publicly supported differentiator: Breadth across conventional penetration testing and broader adversary-oriented assurance.

For buyers deciding whether a full-scope adversary exercise is justified, DeepStrike's red teaming as a service guide can help distinguish a red-team objective from a conventional pentest before vendor selection.

What buyers should confirm: which AEC/ARICOMA entity contracts and performs the work, exact scope, tester allocation, data handling, deliverables, and retesting.

Evidence caveat: The current first-party page structure should be reconfirmed before publishing named sub-services beyond those already supported by the same-day baseline.

6. BDO Czech Republic — best fit for testing inside a broader cyber-risk relationship

 BDO Czech Republic

Best fit: Organizations that want technical testing coordinated with wider cyber-risk, governance, or advisory work.

Czech connection or delivery model: BDO Czech Republic is a local advisory organization with a penetration-testing service baseline.

Verified scope: Penetration testing is supported within a broader cyber-resilience/advisory context.

Publicly supported differentiator: The testing relationship may fit buyers that already use structured governance, audit, or advisory processes.

What buyers should confirm: technical depth, independence requirements, who performs hands-on testing, deliverables, remediation support, and whether the engagement is standalone or part of a broader advisory program.

Evidence caveat: Do not assume that broader audit or advisory credentials automatically prove penetration-testing depth.

7. Citadelo — best fit for offensive-security and specialist engagements

citadelo

Best fit: Buyers looking for offensive-security depth, red-team capability, social-engineering options, or specialist security work.

Czech connection or delivery model: Citadelo is included because the same-day baseline established Czech-market relevance, but the exact current Czech presence should still be confirmed in the final contracting check.

Verified scope: The baseline supports offensive security, penetration testing, red-team, and social-engineering/specialist work.

Publicly supported differentiator: A specialist offensive-security orientation.

What buyers should confirm: which services are currently delivered to Czech organizations, on-site availability, data location, tester team, reporting, and retesting.

Evidence caveat: Avoid attributing a Czech office, staffing level, customer list, or certification set without explicit current first-party proof.

8. Sec4Good — best fit for a Prague-based specialist option

Sec4Good

Best fit: Organizations that prefer a Prague-based security specialist with a public penetration-testing service.

Czech connection or delivery model: The production baseline identifies Sec4Good as Prague-based.

Verified scope: A public penetration-testing service is confirmed in the baseline.

Publicly supported differentiator: Local specialist positioning.

What buyers should confirm: exact application, infrastructure, wireless, social-engineering, or red-team sub-scopes; methodology; report format; remediation support; and retesting.

Evidence caveat: This profile intentionally avoids carrying forward broader inherited scope claims that were not separately re-fetched in this execution.

9. Etnetera Core — best fit for product teams integrating security with delivery

etnetera

Best fit: Product and engineering teams that want security testing aligned with software delivery rather than treated as an isolated procurement event.

Czech connection or delivery model: Etnetera Core is included through the Czech product-engineering context in the baseline.

Verified scope: Security testing integrated with software delivery is the supported buyer-fit framing.

Teams scoping application work should separate browser-facing testing from native mobile requirements; DeepStrike maintains a dedicated web application penetration testing service page for that distinction.

Publicly supported differentiator: Engineering integration and product-delivery context.

What buyers should confirm: the exact penetration-testing component, tester independence from delivery teams, supported asset types, reporting, remediation handoff, and retesting.

Evidence caveat: Do not infer that software-development expertise automatically equals broad infrastructure or specialist offensive-security coverage.

10. Auxilium Pentest Labs — best fit for automotive, embedded, IoT, and hardware

Auxilium Pentest Labs

Best fit: Buyers with specialist technical assets that sit outside a conventional web-and-network pentest.

Czech connection or delivery model: The same-day baseline supports inclusion as a specialist lab relevant to Czech buyers.

Verified scope: Automotive, embedded, IoT, and hardware-oriented security testing.

For teams with mobile applications in the same product ecosystem, treat app-layer testing as a separate scope and compare it against a dedicated mobile application penetration testing engagement.

Publicly supported differentiator: Niche technical scope rather than broad enterprise coverage.

What buyers should confirm: supported hardware, test environment, destructive-test exclusions, lab/on-site requirements, firmware/source-code access, evidence handling, and remediation retesting.

Evidence caveat: Exact Czech delivery logistics and current service boundaries should be reconfirmed.

11. EO Security / EO Cyber — best fit for technical testing plus training

EO Security / EO Cyber

Best fit: Organizations interested in offensive-security testing with a training or knowledge-transfer component.

Czech connection or delivery model: The baseline describes the provider as Brno-linked.

Verified scope: Offensive security, technical testing, and training.

Publicly supported differentiator: Combining technical assessment and skills transfer can be useful for engineering or security teams that want remediation capability to improve after the engagement.

What buyers should confirm: the current trading brand/entity, exact testing scopes, team assignment, deliverables, on-site availability, and retesting.

Evidence caveat: The brand relationship between EO Security and EO Cyber should be clarified before publication and contracting.

12. MyCom Solutions — best fit for buyers seeking another Czech-local option

mycom

Best fit: Czech organizations that want to include an additional local provider in a competitive procurement process.

Czech connection or delivery model: The baseline supports Czech-market relevance.

Verified scope: A public penetration-testing service is the confirmed basis for inclusion.

Publicly supported differentiator: Local option value rather than a claimed universal technical advantage.

What buyers should confirm: exact asset coverage, manual depth, tester qualifications, reporting, remediation support, data handling, and retesting.

Evidence caveat: Narrower technical scopes and delivery details should be reconfirmed from the live first-party page before final publication.

How to choose a penetration testing company in the Czech Republic

1. Start with the business goal

Decide whether the engagement is meant to validate one application, test a release before launch, assess an internal network, examine cloud controls, support a regulatory assurance process, or emulate a broader adversary objective. Do not begin with a vendor name and retrofit the scope afterward.

2. Inventory the assets and environments

List production and non-production systems, identities, APIs, applications, networks, cloud accounts, mobile apps, wireless environments, and specialist assets. Cloud work should be explicitly scoped because provider permissions and platform rules can differ; DeepStrike's cloud penetration testing page illustrates why cloud scope should be treated separately.

3. Choose test depth and knowledge level

Clarify authenticated versus unauthenticated testing, whether source code or architecture information will be available, what user roles exist, and which business workflows matter. A strong proposal should explain where manual analysis is used rather than implying that a scanner alone is a penetration test.

4. Define delivery, legal, and data constraints

Agree testing windows, production-safety limits, emergency contacts, IP allowlists, data-access boundaries, subcontractor rules, data residency, and on-site requirements. For fast-moving environments, a periodic or continuous penetration testing model may be worth evaluating, but frequency should follow risk and change rate rather than a generic schedule.

5. Compare evidence, reporting, and retesting

Ask for a sample report structure, severity methodology, evidence-handling approach, executive summary format, technical remediation guidance, and retesting terms. The goal is to understand how findings move from discovery to verified closure.

For a deeper procurement framework, use the 25 questions to ask a penetration testing company as a companion checklist rather than relying on certifications or brand recognition alone.

Local Czech provider vs remote international provider

A local provider may be preferable when the engagement requires frequent on-site work, physical access, Czech-language workshops, local procurement familiarity, or tightly coordinated infrastructure testing. It may also simplify stakeholder communication when business and technical teams want the tester physically present.

A remote international specialist can be appropriate for web, API, cloud, and other remotely reachable environments when data-handling, contracting, time-zone, communication, and access requirements are clear. The decision should be based on delivery constraints and evidence, not on the assumption that local is always deeper or remote is always cheaper.

For buyers comparing delivery categories rather than individual brands, DeepStrike's broader penetration testing vendor guide can be used to structure the shortlist.

Czech and EU requirements: when penetration testing may be relevant

Czech cybersecurity law

Czech Act No. 264/2025 Coll. became effective on November 1, 2025. The official act should be checked in e-Sbírka when determining whether an organization falls within the current Czech cybersecurity framework.

For organizations in the higher-obligation regime, Decree No. 409/2025 contains specific penetration-testing language in Section 24(5), including testing before operation, after significant change, regularly at least every two years, and retesting of findings. Buyers should verify the exact current text in Decree No. 409/2025 before translating it into a testing calendar.

That higher-regime language should not be generalized to every Czech organization. Decree No. 410/2025 governs the lower-obligation regime, and the production baseline did not identify an equivalent universal penetration-testing rule. NÚKIB's NIS2 and Czech implementation portal is the appropriate starting point for entity and regime questions.

GDPR

GDPR Article 32 requires appropriate technical and organizational measures and a process for regularly testing, assessing, and evaluating the effectiveness of security measures. It does not say that every controller or processor must conduct a penetration test on a universal schedule. The European Commission's data-protection obligations guidance should be read alongside the organization's actual risk and processing context.

DORA, ISO/IEC 27001, and PCI DSS

DORA's threat-led penetration-testing framework applies according to entity and selection criteria; it should not be presented as a universal obligation for every financial organization. The controlling text is available through EUR-Lex.

ISO/IEC 27001 should be treated as a risk-based management-system standard, not as proof that every certified organization must follow one universal pentest schedule. PCI DSS is relevant only to in-scope payment environments, and teams should verify the exact current PCI DSS v4.0.1 penetration-testing requirements that apply to their cardholder-data environment rather than extrapolating them to unrelated systems.

This section is practical security and procurement guidance, not legal advice. Confirm legal and regulatory obligations with qualified Czech, EU, and sector specialists.

Penetration testing cost and scoping factors in the Czech Republic

This guide does not use inherited CZK daily-rate estimates because a comparable current local price basis was not established. Pricing should be evaluated against the actual statement of work, not a generic market band.

The largest cost drivers are usually the number and complexity of assets, credential or source-code access, required test depth, production constraints, on-site travel, social-engineering or physical components, cloud or multi-account scope, OT/automotive/embedded requirements, reporting expectations, retesting, and urgency.

DeepStrike's penetration testing pricing guide can help structure scoping questions, but buyers should still request a quote that states what is included, what triggers a change order, and whether remediation support and retesting are included.

Procurement and statement-of-work checklist

Before signing, require a statement of work that makes the following points explicit:

Treat generic claims such as "compliance ready," "best in class," or "industry leading" as marketing until the vendor connects them to a concrete deliverable and your actual regulatory scope.

Frequently asked questions

What are the top penetration testing companies serving the Czech Republic?

This 2026 editorial shortlist includes DeepStrike, Integra Czech, Axians Czech Republic, CAPTES, AEC, BDO Czech Republic, Citadelo, Sec4Good, Etnetera Core, Auxilium Pentest Labs, EO Security / EO Cyber, and MyCom Solutions. The order is not a universal scientific ranking; the right provider depends on asset type, delivery requirements, specialist depth, evidence quality, and procurement constraints.

Should a Czech company choose a local or international penetration testing provider?

Choose local delivery when on-site work, Czech-language collaboration, local contracting, or physical access materially affects the engagement. A remote international provider can work well for web, API, cloud, and other remotely reachable systems when data, access, time-zone, and communication requirements are clear.

How much does penetration testing cost in the Czech Republic?

There is no reliable universal price for a Czech pentest. Cost depends on the number and complexity of assets, access level, test depth, environment constraints, specialist hardware or OT requirements, reporting, travel, urgency, and retesting. Ask vendors to price the same written scope so quotes are comparable.

Does Czech cybersecurity law or NIS2 require penetration testing?

Not for every Czech organization on one universal schedule. The higher-obligation regime under Decree No. 409/2025 contains specific penetration-testing language, while the lower-obligation regime should not automatically be treated the same way. Determine which regime and systems apply before setting a testing schedule.

What should a professional penetration testing report include?

A useful report should include an executive summary, scope and limitations, methodology, prioritized findings, evidence sufficient for authorized reproduction, business and technical impact, remediation guidance, and a clear retest status when fixes are verified. Buyers should ask to see a sanitized sample structure before contracting.

Can penetration testing be performed remotely?

Yes, many web, API, cloud, external-network, and application tests can be delivered remotely when access and safety controls are defined. On-site delivery may still be necessary for internal networks, physical environments, wireless coverage, hardware, OT, or engagements with strict local-access requirements.

How often should an organization retest after remediation?

Retesting should follow the risk and remediation plan rather than an arbitrary calendar. Critical fixes may warrant prompt verification, while broader recurring testing should reflect system change rate, threat exposure, sector requirements, and applicable law or standards. Contractually define what a retest covers and when it is available.

Discuss your penetration testing scope with DeepStrike

If you are evaluating a penetration test for a Czech organization, DeepStrike can review your asset scope, delivery constraints, and reporting needs and help define an appropriate engagement without assuming that one testing model fits every organization.

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.

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