Company lists · Data refreshed September 2026

Top 25 Information security assessment services based in the Netherlands

RevenueBase identified 246 company matches for information security assessment services associated with the Netherlands as of September 2026 and tracks 1,667 professional contacts across them, including 445 with verified work emails. Amsterdam is the largest hub.

This list covers company matches for information security assessment services associated with the Netherlands, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 28, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 28, 2026 How this list was built
246Companies
1,667Contacts tracked
445Verified emails
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The 25 largest information security assessment services based in the Netherlands

Ranked by team size
Top 25 of 246 company matches for information security assessment services based in the Netherlands, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchWaardenburg, NetherlandsHQ recorded Sep 28, 202651-200123 contacts →

Exact match

“SITS|Traxion is the independent specialist and market leader in the Benelux in the area of Identity Access Management as part of our information security portfolio.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2Exact matchThe Hague, NetherlandsHQ recorded Sep 28, 2026201-50072 contacts →

Exact match

“Xalient ondersteunt toonaangevende organisaties bij het beschermen van hun meest waardevolle middelen: hun medewerkers, applicaties en data.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3Exact matchLopik, NetherlandsHQ recorded Sep 28, 2026n/a52 contacts →

Exact match

“Goed advies levert geld op.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4Exact match3447gg, NetherlandsHQ recorded Sep 28, 202611-5037 contacts →

Exact match

“Surelock IT Security Services helpt organisatie inzicht te krijgen in de IT-kwetsbaarheden van hun organisatie.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5Exact matchDelft, NetherlandsHQ recorded Sep 28, 202611-5025 contacts →

Exact match

“LBVD is een Delfts onderzoeks- en adviesbureau gespecialiseerd in digitale veiligheid, cybersecurity (ICT-security) en informatiebeveiliging, met 20+ jaar ervaring.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6Exact matchRotterdam, NetherlandsHQ recorded Sep 28, 202611-5023 contacts →

Exact match

“ThreadStone is uw toonaangevende specialist op het gebied van cybersecurity.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7Exact matchEindhoven, NetherlandsHQ recorded Sep 28, 202611-5022 contacts →

Exact match

“é.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8Exact matchThe Hague, NetherlandsHQ recorded Sep 28, 202611-5021 contacts →

Exact match

“PuraSec levert expertise op het gebied van cybersecurity binnen de deelgebieden; mens, beleid en techniek.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9Exact matchThe Hague, NetherlandsHQ recorded Sep 28, 202611-5019 contacts →

Exact match

“Bij Securesult richten we ons op het bieden van hoogwaardige informatiebeveiligingsoplossingen voor organisaties van elke omvang.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10Exact matchLeiden, NetherlandsHQ recorded Sep 28, 202611-5018 contacts →

Exact match

“DongIT is an independent web security and web development company specializing in penetration testing, secure software development, and custom-built web applications.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11Exact matchLeiderdorp, NetherlandsHQ recorded Sep 28, 202611-5016 contacts →

Exact match

“REQON is gespecialiseerd in het uitvoeren van technische beveiligingsonderzoeken in de vorm van (maatwerk) penetratietesten en exposure onderzoeken.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12Exact matchAmersfoort, NetherlandsHQ recorded Sep 28, 202611-5016 contacts →

Exact match

“Onyx Cyber Security provides a number of services related to the field of IT security.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13Exact matchNijmegen, NetherlandsHQ recorded Sep 28, 202611-5016 contacts →

Exact match

“Bij Samoerai Informatiebeveiliging hanteren we een unieke integrale aanpak vanuit drie fasen; De scan fase, De project fase en de In controle fase.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14Exact matchUtrecht, NetherlandsHQ recorded Sep 28, 202611-5015 contacts →

Exact match

“At Cyber Seals, we believe in a digital world where you can work, innovate, and grow securely.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15Exact matchEindhoven, NetherlandsHQ recorded Sep 28, 202611-5014 contacts →

Exact match

“e3 Benelux helps organisations implement data protection not only in a technically sound way, but also in a way that is commercially successful and demonstrably manageable.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16Exact matchRotterdam, NetherlandsHQ recorded Sep 28, 202611-5014 contacts →

Exact match

“Base is a niche consultancy & managed security solutions provider, offering services enabling organizations, and professionals, to build knowledge & capabilities in information…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17Exact matchWaddinxveen, NetherlandsHQ recorded Sep 28, 202611-5013 contacts →

Exact match

“Safetech is een adviserend ingenieursbureau gespecialiseerd in beveiligingsadviezen.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18Exact matchAlkmaar, NetherlandsHQ recorded Sep 28, 20261-1012 contacts →

Exact match

“Specialists from Sirius Security have all the skills to help enterprise organisations to secure their IT environment.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19Exact matchAlmere, NetherlandsHQ recorded Sep 28, 202611-5011 contacts →

Exact match

“Even when your security is well underpinned, it remains important to remain alert to possible vulnerabilities, to the system's alerting and response capabilities and to the…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20Exact matchRotterdam, NetherlandsHQ recorded Sep 28, 202611-5011 contacts →

Exact match

“Risguard was founded by Thom, Wolbert and Jurgen, three experienced IT-audit professionals with over 25 years of combined experience in IT audit, IT risk management & IT…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21Exact matchThe Hague, NetherlandsHQ recorded Sep 28, 202611-5011 contacts →

Exact match

“Anove stands at the forefront of digital security, boasting a rich legacy dating back to 1996.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22Exact matchAmsterdam, NetherlandsHQ recorded Sep 28, 20261-1011 contacts →

Exact match

“Sekurno is a cybersecurity company that provides security services beyond mere compliance.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23Exact matchCapelle Aan Den Ijssel, NetherlandsHQ recorded Sep 28, 20261-1011 contacts →

Exact match

“Cyber7 Cyber Security Consultancy”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24Exact matchAbcoude, NetherlandsHQ recorded Sep 28, 202611-5010 contacts →

Exact match

“Cyber Security Challengers (CSC) is uw onafhankelijke cybersecurity expert en dienstverlener.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25Exact matchBleskensgraaf, NetherlandsHQ recorded Sep 28, 20261-1010 contacts →

Exact match

“Cyber Cloud is een jong, ambitieus en innovatief bedrijf, gespecialiseerd in het uitvoeren van technische testen met als doel kwetsbaarheden in uw (web/mobiele)applicaties…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase

Showing 25 of 246 information security assessment services based in the Netherlands

See the full list, filter by size, metro and specialty, and access 445 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Information security assessment services based in the Netherlands at a glance

As of Sep 28, 2026
26.7%Verified-email coverage
6.8Average contacts per company
1-10Median size (employees)
9.3%Largest-city concentration · Amsterdam
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
192
11-50
47
51-200
4
201-500
3

Email recency for this list is measured worldwide rather than for Netherlands, so it is reported there. Company counts and contact totals on this page are exact for Netherlands, over 246 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with the Netherlands whose business descriptions match “information security assessment services” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every displayed company carries at least one verified work email. RevenueBase tracks 445 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 28, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “information security assessment services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many information security assessment services are there based in the Netherlands?

RevenueBase identified 246 company matches for information security assessment services associated with the Netherlands as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Sits Traxion tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most information security assessment services?

Amsterdam leads with 23 company records, followed by The Hague (14) and Utrecht (10).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 445 professional contacts with verified work emails tracked across these 246 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 28, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.