Company lists · Data refreshed November 2026

Top 19 Cybersecurity consultancies based in the Netherlands

RevenueBase identified 1,344 company matches for cybersecurity consultancies associated with the Netherlands as of November 2026 and tracks 36,281 professional contacts across them, including 18,475 with verified work emails. Amsterdam is the largest hub.

This list covers company matches for cybersecurity consultancies 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 November 6, 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 Nov 6, 2026 How this list was built
1,344Companies
36,281Contacts tracked
18,475Verified emails
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The 19 largest cybersecurity consultancies based in the Netherlands

Ranked by team size
Top 19 of 1,344 company matches for cybersecurity consultancies based in the Netherlands, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 matchThe Hague, NetherlandsHQ recorded Nov 6, 2026201-500297 contacts →

Exact match

“Als Nationaal Cyber Security Centrum (NCSC) geven we richting in het complexe cyberdomein.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchThe Hague, NetherlandsHQ recorded Nov 6, 2026201-500233 contacts →

Exact match

“Eye Security protects small and medium-sized European enterprises from cyber threats and the high costs that follow after a successful attack.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchRijswijk, NetherlandsHQ recorded Nov 6, 2026201-500232 contacts →

Exact match

“Fox-IT prevents, solves and mitigates the most serious cyber threats with innovative solutions for government, defense, law enforcement, critical infrastructure, banking, and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchCapelle Aan Den Ijssel, NetherlandsHQ recorded Nov 6, 2026n/a192 contacts →

Exact match

“We help organizations gain control over their digital foundation.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchBarendrecht, NetherlandsHQ recorded Nov 6, 202651-200173 contacts →

Exact match

“Introducing Nsecure Nsecure supports organisations in their operational processes by providing innovative combinations of technology, ICT and human oversight.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchVeenendaal, NetherlandsHQ recorded Nov 6, 202651-200127 contacts →

Exact match

“DataExpert’s mission is to empower law enforcement, military, intelligence agencies, customs, other government organizations, banks, telecommunication companies, insurance…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchLeiden, NetherlandsHQ recorded Nov 6, 202651-200125 contacts →

Exact match

“FreshMinds is an IT Consultancy company with focus on Software, Data, Cloud- & Cyber Security Engineering.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchThe Hague, NetherlandsHQ recorded Nov 6, 202651-200123 contacts →

Exact match

“IT en OT worden steeds complexer.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchUtrecht, NetherlandsHQ recorded Nov 6, 202651-200117 contacts →

Exact match

“Leading Digital Innovation Strict helpt vanaf het strategische idee tot en met de succesvolle implementatie om het allerbeste uit digitale innovaties te halen en deze renderend in…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchDelft, NetherlandsHQ recorded Nov 6, 202651-200104 contacts →

Exact match

“Pinewood te Delft is al 28 jaar de specialist in cybersecurity en voor veel bedrijven en organisaties de one-stop security partner.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchNieuwegein, NetherlandsHQ recorded Nov 6, 202651-20098 contacts →

Exact match

“Tesorion is een Nederlandse, onafhankelijke Managed Security Services Provider (MSSP).”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchOdijk, NetherlandsHQ recorded Nov 6, 202651-20080 contacts →

Exact match

“Wie zijn we?”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchHengelo, NetherlandsHQ recorded Nov 6, 202651-20075 contacts →

Exact match

“IT met een gezicht" vertrouwde technologie, persoonlijke aanpak In een wereld waarin cybersecurity, cloud en digitale transformatie steeds belangrijker worden, draait het niet…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchNieuwkuijk, NetherlandsHQ recorded Nov 6, 202651-20075 contacts →

Exact match

“U moet kunnen vertrouwen op de beschikbaarheid en veiligheid van uw bedrijfskritische systemen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchUtrecht, NetherlandsHQ recorded Nov 6, 202651-20075 contacts →

Exact match

“Veilig digitaal werken is de basis voor elke moderne organisatie en precies daar staan wij voor bij OneXillium.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchAmsterdam, NetherlandsHQ recorded Nov 6, 202651-20073 contacts →

Exact match

“We are your backbone for a secure and resilient digital infrastructure.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchAmsterdam, NetherlandsHQ recorded Nov 6, 202651-20068 contacts →

Exact match

“EclecticIQ is a global cybersecurity leader founded in 2014, specializing in threat intelligence technology.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchLeiden, NetherlandsHQ recorded Nov 6, 202611-5068 contacts →

Exact match

“NCT Consultants is an independent defense and security company dedicated to making this world a safer and more secure place.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchEindhoven, NetherlandsHQ recorded Nov 6, 202651-20068 contacts →

Exact match

“In een wereld vol risico’s en verplichtingen is het een uitdaging om in control te zijn én je prioriteiten scherp te houden.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 19 of 1,344 cybersecurity consultancies based in the Netherlands

See the full list, filter by size, metro and specialty, and access 18,475 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Cybersecurity consultancies based in the Netherlands at a glance

As of Nov 6, 2026
50.9%Verified-email coverage
27.0Average contacts per company
1-10Median size (employees)
9.4%Largest-city concentration · Amsterdam
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
940
11-50
286
51-200
79
201-500
22
501-1,000
4
1,001-5,000
8
10001+
1

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 1,344 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 “cybersecurity consultancies” 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 18,475 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 November 6, 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 “cybersecurity consultancies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many cybersecurity consultancies are there based in the Netherlands?

RevenueBase identified 1,344 company matches for cybersecurity consultancies associated with the Netherlands as of November 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?

Nationaal Cyber Security Centrum Ncsc-Nl tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most cybersecurity consultancies?

Amsterdam leads with 127 company records, followed by The Hague (61) and Rotterdam (46).

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 18,475 professional contacts with verified work emails tracked across these 1,344 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 November 6, 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.