Company lists · Data refreshed November 2026

Top 25 Managed security services companies based in the Netherlands

RevenueBase identified 194 company matches for managed security services companies associated with the Netherlands as of November 2026 and tracks 2,368 professional contacts across them, including 852 with verified work emails. Amsterdam is the largest hub.

This list covers company matches for managed security services companies 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 5, 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 5, 2026 How this list was built
194Companies
2,368Contacts tracked
852Verified emails
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The 25 largest managed security services companies based in the Netherlands

Ranked by team size
Top 25 of 194 company matches for managed security services companies based in the Netherlands, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 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 5, 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 5, 2026 · View company records in RevenueBase
2Exact matchRijswijk, NetherlandsHQ recorded Nov 5, 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 5, 2026 · View company records in RevenueBase
3Exact matchMaastricht, NetherlandsHQ recorded Nov 5, 2026501-1,000155 contacts →

Exact match

“Intergarde waakt en beveiligt, terwijl u onderneemt.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4Exact matchReeuwijk, NetherlandsHQ recorded Nov 5, 202651-200140 contacts →

Exact match

“We are the experts in proactive management of complex IT environments.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5Exact matchDelft, NetherlandsHQ recorded Nov 5, 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 5, 2026 · View company records in RevenueBase
6Exact matchNieuwegein, NetherlandsHQ recorded Nov 5, 202651-20098 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7Exact matchAmsterdam, NetherlandsHQ recorded Nov 5, 202651-20057 contacts →

Exact match

“Veiligheid voor alles’ in Amsterdam en omgeving.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8Exact matchApeldoorn, NetherlandsHQ recorded Nov 5, 202651-20042 contacts →

Exact match

“Vigilat Beveiligingen biedt maatwerk in bedrijfsveiligheid.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9Exact matchThe Hague, NetherlandsHQ recorded Nov 5, 202651-20041 contacts →

Exact match

“Hunt & Hackett helps European companies prevent, detect and respond to today’s most advanced adversaries, safeguarding them against cyberthreats and espionage.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10Exact matchLj, NetherlandsHQ recorded Nov 5, 202651-20040 contacts →

Exact match

“ON2IT is a global pure-play cybersecurity service provider.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11Exact match3447gg, NetherlandsHQ recorded Nov 5, 202611-5034 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 · Nov 5, 2026 · View company records in RevenueBase
12Exact matchRijswijk, NetherlandsHQ recorded Nov 5, 202611-5033 contacts →

Exact match

“Tachyon Security BV is based just outside The Hague in the Netherlands.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13Exact matchLopik, NetherlandsHQ recorded Nov 5, 202611-5020 contacts →

Exact match

“Bij HOB ICT Security werken we dagelijks aan het versterken van de weerbaarheid van middelgrote en grote organisaties tegen alle vormen van cyberdreigingen.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14Exact matchAlphen Aan Den Rijn, NetherlandsHQ recorded Nov 5, 202611-5020 contacts →

Exact match

“A medium sized company which provides entreponeurs and facility managers of larger clients with services concerning fire detection systems, intrusion detection systems, access…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact matchRotterdam, NetherlandsHQ recorded Nov 5, 202611-5018 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16Exact matchSittard, NetherlandsHQ recorded Nov 5, 202611-5018 contacts →

Exact match

“Complete data protection & cybersecurity.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17Exact matchEindhoven, NetherlandsHQ recorded Nov 5, 202611-5018 contacts →

Exact match

“Defenced is the IT security knowledge partner for large and medium-sized organizations.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18Exact matchArnhem, NetherlandsHQ recorded Nov 5, 202611-5017 contacts →

Exact match

“CyberPeak supports organizations in structurally setting up, securing, and managing their network and cybersecurity environments.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19Exact matchAmsterdam, NetherlandsHQ recorded Nov 5, 202651-20015 contacts →

Exact match

“Bekwame, moedige en servicegerichte beveiliging is waar BMS Security voor staat!”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20Exact matchThe Hague, NetherlandsHQ recorded Nov 5, 202611-5013 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 · Nov 5, 2026 · View company records in RevenueBase
21Exact matchAlkmaar, NetherlandsHQ recorded Nov 5, 20261-1013 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 · Nov 5, 2026 · View company records in RevenueBase
22Exact matchUtrecht, NetherlandsHQ recorded Nov 5, 202611-5012 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 · Nov 5, 2026 · View company records in RevenueBase
23Exact matchVeenendaal, NetherlandsHQ recorded Nov 5, 202611-5012 contacts →

Exact match

“De dreiging van cyberaanvallen is groot.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24Exact matchBreda, NetherlandsHQ recorded Nov 5, 20261-1011 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25Exact matchRoermond, NetherlandsHQ recorded Nov 5, 202611-5011 contacts →

Exact match

“Bij XTRN-IT draait IT om continuïteit, veiligheid en grip.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase

Showing 25 of 194 managed security services companies based in the Netherlands

See the full list, filter by size, metro and specialty, and access 852 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Managed security services companies based in the Netherlands at a glance

As of Nov 5, 2026
36.0%Verified-email coverage
12.2Average contacts per company
11-50Median size (employees)
9.3%Largest-city concentration · Amsterdam
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
93
11-50
70
51-200
22
201-500
5
501-1,000
2
1,001-5,000
1
5,001-10,000
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 194 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 “managed security services companies” 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 852 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 5, 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 “managed security services companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many managed security services companies are there based in the Netherlands?

RevenueBase identified 194 company matches for managed security services companies 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?

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

Which city has the most managed security services companies?

Amsterdam leads with 18 company records, followed by Rotterdam (11) and The Hague (7).

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 852 professional contacts with verified work emails tracked across these 194 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 5, 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.