Top Penetration Testing Companies in Netherlands 2026

A comparison, published by DeepStrike (one of the listed providers), of penetration-testing providers serving Dutch enterprises and SMBs in 2026.

Comparing providers beyond Netherlands? Our list of the top penetration testing companies worldwide covers firms that deliver testing across regions.

This guide covers providers for organizations in the Netherlands. Buying from the United States? See our list of top penetration testing companies in the U.S. or DeepStrike's penetration testing services.

Updated: November 2026. Company profiles were rewritten from each provider's official website and checked against the CCV Pentest register. DeepStrike publishes this guide and is included in this list. Buyers should independently verify legal entity, assigned testers, onsite capability, accreditation, retesting, evidence handling, and commercial terms before procurement.

Executive Summary

• Who this list is for: Security leaders and procurement teams in Dutch organizations, from SMBs to large regulated enterprises.
• Listed first: DeepStrike (publisher of this guide) — human-led testing across applications, cloud, and infrastructure, with reproduction evidence, remediation guidance, and a published Basic plan that lists 12 months of remediation retesting.
• Best for large enterprise and critical infrastructure: Fox-IT / NCC Group — deep Dutch roots, adversary simulation, threat intelligence, and critical-environment experience.
• Best for formal Dutch pentest assurance: Bureau Veritas Cybersecurity (formerly Secura) — CCV pentest certification, ISO-backed processes, OT/IoT and regulated-sector depth.
• Best integrated security partner: Northwave Cyber Security — pentesting plus red teaming, threat intelligence, SOC/MDR, incident response, and TIBER/ART capability.
• Best independent pentest boutique: Securify — strong manual-testing focus, code review, detection advice, and implementation-ready findings.
• Best for automated plus manual pentesting with MDR: Computest Security (now DEFION) — choice of an autonomous Pentest Agent or manual testing by certified hackers, plus MDR and incident response.
• Best CCV-certified Amsterdam offensive-security firm: WebSec B.V. – manual web, mobile, cloud, IoT, and ICS/SCADA testing, listed in the CCV Pentest register.
• Best nationwide Dutch enterprise option: KPN REDteam — penetration testing and social engineering by KPN's REDteam ethical hackers, alongside KPN's managed security services.
• Best for ethical hacking with detection and response: Orange Cyberdefense Netherlands — pentests, red teaming, and cloud and identity assessments from its Utrecht-based Dutch business.
• Best for TIBER, regulated enterprise, and continuous pentesting: EY Netherlands.
• Best for audit-linked offensive security: PwC Netherlands.
• Best specialist offensive-security boutique: The S-Unit — CCV-registered Utrecht team of about 25 security professionals offering pentests, recurring testing, and TIBER-NL red teaming.
• Best for pentesting alongside managed security: Tesorion – black-, grey-, or white-box pentests plus MDR, T-SOC, and T-CERT incident response.
• Best agentic/continuous external attack-surface validation: Hadrian — Amsterdam-headquartered agentic pentesting platform, useful as a complement to traditional manual testing.

Choosing the right penetration-testing provider is more critical than ever. In 2026, Dutch organizations face mature cyber threats, identity abuse, AI-assisted attacks, supply-chain exposure, cloud complexity, and tighter regulatory obligations.

The legal position also changed in 2026. The Dutch Cyberbeveiligingswet (Cybersecurity Act) entered into force on 15 August 2026, implementing NIS2 in the Netherlands and replacing the Wbni for covered organizations. The new law introduces registration, duty-of-care, incident-reporting, governance, and supervisory obligations for more than 8,000 organizations across 18 sectors.

DeepStrike publishes this list and lists itself first. The list order is not a quality ranking or score, and the guide does not accept paid inclusion; competitor profiles are based on publicly verifiable information.

Quick Comparison: Top Penetration Testing Companies in the Netherlands

How to Choose the Right Penetration Testing Company

Selecting a penetration-testing partner requires care. Common pitfalls include mistaking automated scans for true pentesting and underestimating the importance of experienced testers.

1. Define the real objective. Decide whether you need a web, API, mobile, cloud, infrastructure, Active Directory, OT, social-engineering, red-team, TIBER/TLPT, or combined engagement.
2. Separate scanning from penetration testing. Ask how much of the work is manual and how testers validate exploitability, authorization flaws, business logic, privilege escalation, and chained attack paths.
3. Check the assigned testers. Provider accreditations matter, but verify the people who will actually execute and review the engagement.
4. Confirm rules of engagement. Define authorization, test windows, production restrictions, exclusions, emergency contacts, and stop conditions.
5. Review a sample report. Look for technical evidence, business impact, reproduction detail, prioritization, remediation guidance, and management-level context.
6. Check cloud, API, identity, and OT depth where relevant. Do not assume every “full-service” provider has equal expertise across each attack surface.
7. Confirm critical-finding escalation. Severe issues should be communicated during the test rather than waiting for the final report.
8. Verify retesting terms. Confirm whether remediation validation is included, time-limited, or separately charged.
9. Match assurance to the real requirement. CCV, NIS2/Cyberbeveiligingswet, DORA, TIBER, PCI DSS, ISO 27001, BIO, and customer contracts have different evidence requirements.
10. Compare outcome, not headline price. Scope, tester seniority, manual effort, evidence quality, report depth, and retesting matter more than the longest tool list.

What really matters is technical rigor and transparency. Strong vendors blend manual techniques, creative attack chaining, realistic threat scenarios, and thorough reporting rather than relying on scanners alone.

Evaluation Methodology 2026

Buyers should weigh the following procurement-relevant criteria when comparing providers: tester capability, provider assurance, service scope, Netherlands presence, reporting quality, remediation support, retesting, and modern attack-surface coverage. The profiles below summarize public evidence for each provider; they are not scored.

Provider-level assurance and individual credentials are treated separately. CCV pentest certification, ISO certification, CREST company accreditation, NCSC CHECK, and other organizational schemes are not the same as individual credentials such as OSCP, OSWE, CISSP, CREST practitioner certifications, GIAC, or similar qualifications.

Capabilities that could not be directly evidenced were treated cautiously, and brand size alone did not earn a place on the list.

How we built the Netherlands shortlist: We started from the CCV Pentest register of certified providers and added Dutch-established firms with published Dutch offices, the Big Four practices that publish Dutch offensive-security services, and Hadrian as an Amsterdam-founded platform, kept separate from consultant-led testing. Each profile was checked against the provider's own website and the CCV register in November 2026; seven of the thirteen other providers appear in the register, and each entry says whether it does. This is desk research, not hands-on testing of each provider.

Top Penetration Testing Companies in Netherlands 2026

1. DeepStrike: Application testing and remediation collaboration

Public offering: DeepStrike's penetration testing services describe human-led testing across applications, cloud environments, and infrastructure, supported by a findings and collaboration platform. Its public process covers planning, reconnaissance, vulnerability discovery, controlled exploitation, reporting, and technical support. Published reports include reproduction steps, remediation guidance, and root-cause information; the proposal should define exact coverage and commercial terms.

Netherlands relevance: Founded in 2016, DeepStrike LLC is headquartered in Newark, Delaware, has 11–50 employees, and also publishes a business address in Dubai, UAE (IFZA Business Park). It delivers testing remotely for Dutch clients; define tester locations, permitted subcontracting, and data-handling restrictions in the engagement agreement.

Team certifications: OSCP, OSWE, OSEP, OSWP, GXPN, GWAPT, eCPPT, eMAPT, eWPT, CREST CPSA, CRTP, CRTE, and Microsoft Azure Security Engineer Associate, as shown on DeepStrike's services page.

Official sources: Pricing , Contact Us

Buyer fit: Engineering teams that need application, cloud, or infrastructure testing with direct remediation collaboration.

2. Fox-IT (NCC Group): Testing alongside incident response and MDR

Public offering: Fox-IT's assessment and advisory services cover cloud and infrastructure security, application and software testing that simulates real-life attacks, mobile security, hardware and embedded systems, and managed vulnerability scanning between manual tests. It also offers managed detection and response, managed XDR for Microsoft, incident response, threat intelligence, and compliance services. Fox-IT is part of NCC Group.

Netherlands relevance: Fox-IT's contact page lists a visiting address at Lange Kleiweg 40, Rijswijk (The Den), and the CCV Pentest register lists Fox-IT B.V. (under a Delft address, November 2026). As part of an international group, confirm whether testers are based in the Netherlands and how data is handled.

Certifications: Fox-IT states that its integrated management system meets ISO 9001:2015 and ISO/IEC 27001:2013.

Official sources: https://www.fox-it.com/nl-en/assessment-advisory/; https://www.fox-it.com/nl-en/contact-us/

Buyer fit: Large enterprises, government bodies, and critical infrastructure operators that want testing alongside incident response and managed detection.

What sets it apart in the Netherlands: It pairs CCV-registered testing with a Delft-founded incident response and threat intelligence team, which suits government and critical-infrastructure buyers that want testers backed by in-house incident responders.

3. Bureau Veritas Cybersecurity (formerly Secura): IT and OT security testing

Public offering: Bureau Veritas Cybersecurity lists vulnerability assessment and penetration testing of websites, applications, and infrastructure within its IT services, alongside design reviews, threat modeling, SIEM/SOC testing, and external attack surface assessment. Its OT portfolio adds industrial VAPT, OT perimeter assessments, and IEC 62443 compliance support, and it also offers phishing, social engineering, and security awareness training. The former secura.com website now redirects to Bureau Veritas Cybersecurity.

Netherlands relevance: Its contact page lists Dutch offices at Herikerbergweg 15, Amsterdam, and Vestdijk 59, Eindhoven, and both locations appear in the CCV Pentest register (November 2026). As part of an international group with offices in several countries, confirm which team performs the test and where data is processed.

Certifications: Its certificates page lists ISO 9001, ISO 14001, ISO 17025, ISO 27001, ISO 45001, NEN 4400-1, and SOC 2, plus CREST and CCV for penetration testing.

Official sources: https://cybersecurity.bureauveritas.com/services/information-technology/pentesting-services; https://cybersecurity.bureauveritas.com/contact

Buyer fit: Regulated organisations and operators of OT or industrial systems that need certified testing and compliance-oriented reporting.

What sets it apart in the Netherlands: On this list, it is the provider that states both CCV and CREST for penetration testing, plus NEN 4400-1 and ISO 17025, which suits buyers whose auditors expect formal Dutch and international assurance, especially for OT and industrial testing.

4. Northwave Cyber Security: Testing within a managed security portfolio

Public offering: Northwave offers pentesting and vulnerability assessments to identify exploitable weaknesses in systems, networks, and applications, evaluate their impact, and support compliance evidence. Its offensive line also includes red teaming, TIBER, and advanced red teaming, while the wider portfolio covers managed detection and response, vulnerability management, 24/7 incident response through its CERT, and governance services such as an ISO 27001 FastTrack.

Netherlands relevance: Northwave lists its headquarters at Van Deventerlaan 31-51, Utrecht, with entities in Leipzig, Stockholm, and Diegem (Belgium), and Northwave Group B.V. appears in the CCV Pentest register (November 2026). Confirm which country team performs the test and where data is processed.

Certifications: Northwave publishes ISO 27001, ISO 9001, and ISO 27701 certificates on its website.

Official sources: https://northwave-cybersecurity.com/pentest; https://northwave-cybersecurity.com/contact

Buyer fit: Mid-sized and larger organisations that want testing connected to managed detection, incident response, and security governance.

What sets it apart in the Netherlands: Its offensive line explicitly includes TIBER and advanced red teaming next to its own CERT and MDR, which suits Dutch financial institutions that want threat-led testing and response from one Utrecht-based provider.

5. Securify: Developer-focused pentesting boutique

Public offering: Securify offers time-boxed, standard (black, grey, or white box), and scenario-based pentests of web and mobile apps, cloud and other infrastructure, Wi-Fi, and phishing awareness, plus red teaming and code review. Its pentest page says results are presented in a findings meeting with concrete improvement proposals, and that its web application work follows standards such as OWASP ASVS and can include exact code fixes.

Netherlands relevance: Securify lists its office at Naritaweg 132, Amsterdam, and Securify B.V. appears in the CCV Pentest register (November 2026). Its website is primarily in Dutch; agree the reporting language, tester locations, and data handling in the agreement.

Official sources: https://www.securify.nl/diensten/pentesting/; https://www.securify.nl/over-ons/

Buyer fit: Software teams and SMEs that want developer-focused pentests and code review from an Amsterdam boutique.

What sets it apart in the Netherlands: It is a CCV-registered Amsterdam boutique with a developer-focused approach and code review, and its Dutch-first website suits buyers who want Dutch-language contact with the people doing the testing.

6. Computest (now DEFION): Manual and AI-assisted pentesting with MDR

Public offering: Computest now operates as DEFION. Its pentesting page offers either an autonomous Pentest Agent, which it says delivers first results within 24 hours with quality checks by certified hackers, or fully manual pentests by OSCP- and OSWE-certified hackers covering areas such as web applications, internal networks, cloud, wireless, red teaming, and OT. The wider portfolio includes security advisory, managed detection and response, digital forensics and incident response, and business continuity services.

Netherlands relevance: DEFION lists offices in Zoetermeer (Signaalrood 25) and Barcelona, and DEFION Security Netherlands B.V. appears in the CCV Pentest register (November 2026). Specify whether findings come from the autonomous agent or manual testing, and where testing data is processed.

Certifications: DEFION states that its manual pentesters hold OSCP, OSWE, and CEH certifications.

Official sources: https://defion.security/en/pentesting-services/; https://defion.security/en/contact/

Buyer fit: Organisations that want fast automated pentest coverage with the option of deeper manual testing and MDR from one provider.

What sets it apart in the Netherlands: It is the only CCV-registered provider on this list that sells an autonomous Pentest Agent alongside manual testing, so buyers can mix fast automated coverage with manual depth from one Dutch provider.

7. WebSec B.V.: CCV-certified offensive security from Amsterdam

Public offering: WebSec lists penetration testing of web applications, mobile apps, infrastructure, cloud environments, Wi-Fi, IoT, and ICS/SCADA systems, plus red teaming, phishing campaigns, and a managed vulnerability disclosure programme. Its pentest page describes manual testing by security experts, tailored remediation advice for each finding, and detailed reports, and states that every specialist on the team holds the OSCP certification. The company also lists defensive security and governance, risk, and compliance support such as ISO 27001 and NIS2.

Netherlands relevance: WebSec lists its headquarters at Keurenplein 41, Amsterdam, and a US office in Sheridan, Wyoming, and WebSec B.V. appears in the CCV Pentest register (November 2026). Define which office's testers perform the work and where test data is stored in the agreement.

Certifications: WebSec states that it is certified under CCV Pentest (v2.0), ISO 27001, and ISO 9001.

Official sources: https://websec.net/offensive/services/pentesting; https://websec.net/about-us

Buyer fit: Organisations that need a CCV-certified Dutch provider for application, infrastructure, or red team testing.

What sets it apart in the Netherlands: It is a CCV-registered Amsterdam firm that also publishes ICS/SCADA testing and a managed vulnerability disclosure programme, a combination few other boutiques on this list publish.

8. KPN REDteam: Pentesting and social engineering from a Dutch telecom provider

Public offering: KPN's business security pages describe penetration testing by ethical hackers who look for exploitable weaknesses in systems and networks and then advise on security measures. Social engineering assessments, including controlled phishing tests and other scenarios with a findings report, are carried out by the same REDteam. KPN also provides managed security services to organisations of different sizes and sectors.

Netherlands relevance: KPN is a Dutch telecom and IT provider, and the testing is sold through KPN Zakelijk (its business division). KPN does not appear in the CCV Pentest register (November 2026); confirm the testing team, manual test days, and data-handling terms in the agreement.

Official sources: https://www.kpn.com/zakelijk/security/pentest; https://www.kpn.com/zakelijk/security/oplossingen/social-engineering

Buyer fit: Dutch organisations that already buy connectivity or managed security from KPN and want testing from the same provider.

What sets it apart in the Netherlands: It is the only telecom operator on this list, which suits organisations that want testing bundled with KPN connectivity and managed security; it does not appear in the CCV register.

9. Orange Cyberdefense Netherlands: Ethical hacking within a managed security group

Public offering: Orange Cyberdefense Netherlands offers ethical hacking that includes penetration testing of web applications, APIs, and internal and external infrastructure, red teaming and targeted attack simulations, and assessments of cloud and identity environments. It states that each engagement ends with a validated, prioritised overview of risks and concrete recommendations in a detailed report, and that results can support NIS2 (Cyberbeveiligingswet) evidence. Its wider offering covers protection, detection, and incident response services.

Netherlands relevance: The Dutch ethical hacking page lists a contact address at Orteliuslaan 1001, Utrecht. Orange Cyberdefense does not appear in the CCV Pentest register (November 2026); as part of an international group, confirm which work is done by the Dutch team and how data is handled.

Official sources: https://www.orangecyberdefense.com/nl/aanbod/ethical-hacking; https://www.orangecyberdefense.com/nl/aanbod

Buyer fit: Enterprises and regulated organisations that want pentests and red teaming from a provider that also offers detection and response.

What sets it apart in the Netherlands: It brings an international managed security group's ethical hacking team to a Utrecht-based Dutch business with cloud and identity assessments; it is not in the CCV register, so check whether your tender requires CCV.

10. EY Netherlands: Attack and penetration testing within a Big Four practice

Public offering: EY Netherlands lists attack and penetration tests of web applications, mobile apps, API endpoints, internet infrastructure, industrial control systems, internal and wireless networks, and cloud infrastructure, plus red teaming such as TIBER-EU assessments using the MITRE ATT&CK framework. It also offers technical architecture, configuration, code, and cloud reviews, continuous pentesting within an agile secure development lifecycle, internet exposure assessments, vulnerability management, security operations, and cyber threat intelligence.

Netherlands relevance: EY states that more than 180 people work on cybersecurity and technology risk in five Dutch cities, with its Amsterdam team working alongside Belgian, German, and Irish colleagues. EY does not appear in the CCV Pentest register (November 2026); confirm the assigned team and where testers are based.

Official sources: https://www.ey.com/nl_nl/services/cybersecurity/cybersecuritydiensten

Buyer fit: Banks, insurers, utilities, and large enterprises that need technical testing, TIBER-EU red teaming, or continuous pentesting tied to regulatory assurance.

What sets it apart in the Netherlands: It publishes TIBER-EU red teaming and ICS testing from a team of more than 180 people across five Dutch cities, which suits large regulated organisations; it is not in the CCV register.

11. PwC Netherlands: Offensive security with red and purple teaming

Public offering: PwC Netherlands offers penetration testing tailored to the technology and attack scenario, such as web application, internal infrastructure, Active Directory, and external infrastructure tests, plus threat intelligence-led red team exercises and purple teaming with the client's blue team. Its ethical hacking team also tests IT systems of critical infrastructure such as trains, sea locks, and power stations, and the firm offers defensive cyber security services.

Netherlands relevance: PwC Netherlands publishes these services on its Dutch site and lists Netherlands-based partners and directors as contacts. PwC does not appear in the CCV Pentest register (November 2026); confirm the assigned team, manual test effort, and data handling in the engagement letter.

Official sources: https://www.pwc.nl/en/topics/digital/cybersecurity-privacy/offensive-and-defensive-security.html; https://www.pwc.nl/en/topics/digital/cybersecurity-privacy/ethical-hacking.html

Buyer fit: Regulated enterprises and critical infrastructure operators that want testing and red teaming linked to board-level risk reporting.

What sets it apart in the Netherlands: It links penetration testing, intelligence-led red teaming, and purple teaming with board-level risk reporting, which suits regulated enterprises that report test results to supervisors; it is not in the CCV register.

12. The S-Unit: Utrecht offensive security boutique

Public offering: The S-Unit offers penetration testing of the external attack surface (including phishing, Wi-Fi, and drop devices), internal networks including SCADA/ICS environments, applications such as web, API, mobile, and Mendix apps, and hardware and images, in black, grey, or white box form. It also offers Offensive as a Service for recurring testing, modular red teaming, TIBER-NL red team provision, purple teaming workshops, consultancy, and training through The S-University.

Netherlands relevance: The S-Unit lists its office at Savannahweg 71, Utrecht, and The S Unit B.V. appears in the CCV Pentest register (November 2026). Its site describes about 25 security professionals; agree tester assignments and data handling in the agreement.

Official sources: https://the-s-unit.nl/aanpak-en-services/; https://the-s-unit.nl/

Buyer fit: Dutch organisations that want a dedicated offensive security specialist for pentests, recurring testing, or TIBER-NL red teaming.

What sets it apart in the Netherlands: It is a CCV-registered Utrecht boutique of about 25 people that offers TIBER-NL red teaming and Mendix application testing, a niche that matters to Dutch organisations building on the Mendix low-code platform.

13. Tesorion: Pentesting alongside managed security

Public offering: Tesorion's pentest service has ethical hackers manually test an organisation's IT environment for vulnerabilities and configuration issues, offered as black box, grey box, or white box tests, with support for remediation and retesting; red team exercises are offered separately. Its core portfolio is managed security, including managed detection and response, EDR, NDR, managed firewall, network access control, its T-SOC, and the T-CERT incident response team.

Netherlands relevance: Tesorion lists offices in Nieuwegein (Ravenswade 2), Enschede, and Uden (Compumatica Secure Networks) and describes a team of 140 cybersecurity professionals. We did not find Tesorion in the CCV Pentest register in November 2026; agree tester locations and data handling in the agreement.

Official sources: https://www.tesorion.nl/en/services/pentest; https://www.tesorion.nl/en/contact

Buyer fit: Organisations that want periodic pentests from the same provider that runs their managed detection and incident response.

What sets it apart in the Netherlands: Its offices in Nieuwegein, Enschede, and Uden and its T-CERT incident response team suit organisations that want testing and response from one Dutch provider; it was not found in the CCV register.

14. Hadrian: Agentic pentesting and external exposure management

Public offering: Hadrian offers two products: Atlas, for continuous discovery of internet-facing assets across subsidiaries, domains, IPs, and cloud hosts, and Nova, for on-demand agentic pentesting in which AI agents sign in, map an application, and test it within a set scope. Its site also lists continuous pentesting, automated red teaming, remediation validation, and evidence mapping for frameworks such as DORA, NIS2, ISO 27001, and SOC 2.

Netherlands relevance: Hadrian states that it was founded in Amsterdam in 2021. It is a software platform rather than a consultancy and does not appear in the CCV Pentest register (November 2026); confirm where platform data is hosted and how findings map to your auditor's expectations.

Official sources: https://hadrian.io/; https://hadrian.io/company

Buyer fit: Organisations with large, fast-changing external attack surfaces that want continuous automated validation between manual tests.

What sets it apart in the Netherlands: It is the only software platform on this list, founded in Amsterdam, and fits as continuous external validation between manual tests rather than as a replacement for a CCV-certified pentest.

Comparison Table

Enterprise vs SMB: Which Type of Provider Do You Need?

Large Dutch enterprises, financial institutions in TIBER or DORA scope, and Cyberbeveiligingswet entities usually need a provider with formal assurance such as CCV, red teaming capacity, and response integration. SMBs and software companies often get more value from a CCV-registered boutique that gives direct access to the testers and covers web, API, and cloud scope.

Choosing between a large firm or a boutique depends on your needs.

Large enterprises often require global reach, formal certifications, large testing teams, TIBER/TLPT capability, OT support, public-sector governance, or 24/7 response integration. Fox-IT/NCC, Bureau Veritas Cybersecurity, Northwave, KPN, Orange Cyberdefense, EY, and PwC are strong fits where scale and governance matter.

SMBs and mid-market organizations may benefit from smaller or niche providers. Securify, Computest, WebSec, The S-Unit, and Tesorion can offer more direct access to specialists and tighter project coordination.

Tech-driven companies may also compare conventional manual engagements with PTaaS or agentic testing. DeepStrike offers human-led testing, including cloud penetration testing, while Hadrian represents continuous agentic external validation.

The trade-off is not simply large versus small. Match the provider to the attack surface, required evidence, and the people who will actually perform the test.

What Influences Penetration Testing Cost in the Netherlands?

Cost in the Netherlands depends mainly on scope and manual test days: the number of applications, APIs, and cloud accounts, authenticated roles, and whether OT, physical, or TIBER-style work is included. Providers rarely publish comparable day rates, so ask each shortlisted firm to quote against the same statement of work.

Public day rates vary widely and are rarely published in a comparable form; there is no statistically representative Netherlands-wide benchmark.

Cost depends on:

• number of systems, applications, APIs, or cloud accounts;
• internal versus external scope;
• authenticated roles;
• cloud, Active Directory, Entra ID, or Kubernetes complexity;
• mobile, OT/ICS, Wi-Fi, physical, or social-engineering scope;
• tester seniority and manual test days;
• TIBER/TLPT or threat-led requirements;
• onsite versus remote delivery;
• reporting and audit evidence;
• retesting;
• one-off versus continuous/PTaaS/agentic models.

Buyers should compare matched statements of work instead of headline day rates alone.

Netherlands Compliance and Assurance Context

Cyberbeveiligingswet / NIS2

The Cyberbeveiligingswet entered into force on 15 August 2026, implementing NIS2 in the Netherlands and replacing the Wbni. Covered organizations across 18 sectors face registration, duty-of-care, incident-reporting, governance, and supervisory obligations.

The Act was published as Staatsblad 2026, 187, and the Cyberbeveiligingsbesluit (Staatsblad 2026, 189) set the 15 August 2026 start date and repealed the Wbni implementing decree. Check which sector supervisor applies to you before setting test scope and frequency.

Penetration testing can support risk-management and control-validation programs, but the law should not be reduced to a universal annual pentest requirement for every covered organization.

DORA and TIBER/TLPT

Financial entities subject to DORA must maintain digital operational resilience testing programs. Certain entities are subject to threat-led penetration testing requirements, and Dutch providers such as Northwave, EY, and The S-Unit publicly describe TIBER red team work, which can be relevant where TIBER/TLPT capability is required.

GDPR

GDPR Article 32 is risk-based and requires appropriate technical and organizational measures and processes for regularly testing and evaluating security effectiveness. It does not create a universal named annual penetration-test obligation.

CCV Pentest Certification

The Dutch CCV pentest certification scheme provides provider-level assurance around management systems, administrative processes, testing procedures, tooling, reporting, and tester competence. It is particularly relevant to buyers that want a Dutch quality framework around penetration-testing delivery.

Check a provider's current status in the CCV register via hetccv.nl rather than relying on a logo; in November 2026, seven of the thirteen other providers on this list appeared in it.

Procurement, Language, and Data Protection

Dutch public bodies publish tenders on TenderNed and work to the Baseline Informatiebeveiliging Overheid (BIO), so check whether a tender requires CCV certification or Dutch-language reports. In finance, De Nederlandsche Bank runs TIBER-NL for threat-led red teaming of selected institutions. Personal data reached during testing falls under the GDPR, supervised by the Autoriteit Persoonsgegevens, so set retention and deletion terms for test evidence in the contract.

FAQs

How much do penetration testing services cost in the Netherlands?

There is no single reliable Netherlands-wide average. Cost depends on scope, manual testing days, cloud/API or identity complexity, OT/physical requirements, reporting, TIBER/TLPT, and retesting.

Are certifications more important than tools?

Both matter, but neither replaces experience. Provider-level schemes such as CCV or ISO provide organizational assurance. Individual credentials such as OSCP, OSWE, CREST practitioner certifications, or GIAC qualifications can indicate practitioner capability. The more important question is whether the team can validate real exploit paths and communicate the findings clearly.

How long does a pentest take?

Focused tests can take several days to one or two weeks. Larger infrastructure, cloud, red-team, or TIBER/TLPT exercises can take multiple weeks. Reporting and retesting add time after the active-testing phase.

What reports should I expect?

A strong engagement should produce a technical report and, where needed, an executive summary. Findings should include evidence, affected assets, attack context, severity or risk rationale, remediation guidance, and clear limitations. Critical issues should ideally be escalated during the engagement rather than waiting for final delivery.

How often should testing be done?

There is no universal schedule. Test after major changes and according to system criticality, risk, customer commitments, and regulation. Stable systems may be tested periodically, while high-change SaaS, API, cloud, or exposure-heavy environments may benefit from more frequent or continuous validation.

Is a vulnerability assessment the same as a penetration test?

No. A vulnerability assessment focuses on identifying weaknesses broadly. A penetration test goes further by actively validating exploitation and impact within an agreed scope. Some Dutch providers explicitly distinguish the two, so buyers should make sure the statement of work matches the outcome they expect.

Is agentic or automated pentesting enough?

Not for every use case. Automated and agentic testing can dramatically improve frequency and external attack-surface coverage. Bespoke application logic, internal identity attack paths, physical testing, social engineering, and advanced red-team objectives still benefit from human-led offensive expertise.

Bottom Line

The Dutch penetration-testing market is deep, from Big Four practices to CCV-certified boutiques.

The strongest established Dutch options include Fox-IT/NCC Group, Bureau Veritas Cybersecurity, Northwave, Securify, Computest, WebSec, KPN REDteam, Orange Cyberdefense Netherlands, EY Netherlands, PwC Netherlands, The S-Unit, and Tesorion.

This list also includes Hadrian as an Amsterdam-based agentic-pentesting platform, kept separate from consultant-led manual testing.

DeepStrike, the publisher of this guide, suits engineering teams that want human-led application, cloud, and infrastructure testing with remediation collaboration, delivered remotely. Dutch buyers with strict local delivery, CCV, TIBER/TLPT, government, critical-infrastructure, OT, or national-enterprise requirements may reasonably prefer one of the strong Netherlands-based providers above. Buyers weighing another EU delivery base can compare this list with the penetration testing companies in Ireland.

The best shortlist comes from comparing methodology, assigned testers, exploit-validation depth, report quality, retesting, cloud/API maturity, local procurement requirements, and actual fit — not simply the size of the brand. Buyers running the same comparison across the border can start from our list of penetration testing companies in Belgium. For the rest of the Benelux, see also Luxembourg's penetration testing providers.

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, focusing on cloud security, application vulnerabilities, and adversary emulation. His work involves dissecting complex attack chains and developing resilient defense strategies for clients in finance, healthcare, technology, and other high-risk sectors.

Technical Review: DeepStrike Offensive Security Team