Company lists · Data refreshed September 2026

Top 25 Cybersecurity service providers based in the Netherlands

Name: Cybersecurity service providers based in the Netherlands
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 1, 2026 509 companies tracked

RevenueBase identified 509 cybersecurity service providers headquartered in the Netherlands as of September 2026 and tracks 22,962 professional contacts across them, including 12,745 with verified work emails and 6,476 with mobile numbers. Amsterdam is the largest hub.

This list covers cybersecurity service providers headquartered in the Netherlands, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 1, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 Smart Search rating on every row Refreshed Sep 1, 2026 86% judged on-target in blind review

509Companies

22,962Contacts tracked

12,745Verified emails

6,476Mobile numbers

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The 25 largest cybersecurity service providers based in the Netherlands

Ranked by team size

Top 25 of 509 cybersecurity service providers based in the Netherlands, ranked by team size, largest first. Data refreshed Sep 1, 2026. RevenueBase Smart Search rates how each company's information relates to cybersecurity service providers: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Palo Alto Networks	Strong evidence	He, Netherlands	10001+	18,430 contacts →
	Strong evidence “Palo Alto Networks, the global cybersecurity leader, is shaping the cloud-centric future with technology that is transforming the way people and organizations operate.” Source: RevenueBase Database · checked Sep 1, 2026
2	Outpost24	Strong evidence	Xx, Netherlands	201-500	276 contacts →
	Strong evidence “Outpost24 is a leading global provider of cybersecurity solutions, encompassing two specialized divisions to deliver comprehensive exposure and access management.” Source: RevenueBase Database · checked Sep 1, 2026
3	Fox-It	Indirect evidence	Gk, Netherlands	201-500	237 contacts →
	Indirect evidence “Fox-IT prevents, solves and mitigates the most serious cyber threats with innovative solutions for government, defense, law enforcement, critical infrastructure, banking, and…” Source: RevenueBase Database · checked Sep 1, 2026
4	EYE Security	Indirect evidence	Den Haag, Netherlands	201-500	210 contacts →
	Indirect evidence “Eye Security protects small and medium-sized European enterprises from cyber threats and the high costs that follow after a successful attack.” Source: RevenueBase Database · checked Sep 1, 2026
5	Conscia Nederland	Strong evidence	Ah, Netherlands	201-500	153 contacts →
	Strong evidence “Wij ontwerpen, implementeren en beheren veilige IT-infrastructuur en Cybersecurity Services.” Source: RevenueBase Database · checked Sep 1, 2026
6	Comsec	Strong evidence	Amsterdam, Netherlands	51-200	140 contacts →
	Strong evidence “Comsec is a leading global cybersecurity consultancy.” Source: RevenueBase Database · checked Sep 1, 2026
7	Pinewood	Strong evidence	Xj, Netherlands	51-200	106 contacts →
	Strong evidence “Pinewood te Delft is al 28 jaar de specialist in cybersecurity en voor veel bedrijven en organisaties de one-stop security partner.” Source: RevenueBase Database · checked Sep 1, 2026
8	Tesorion	Indirect evidence	Nieuwegein, Netherlands	51-200	92 contacts →
	Indirect evidence “Tesorion is een Nederlandse, onafhankelijke Managed Security Services Provider (MSSP).” Source: RevenueBase Database · checked Sep 1, 2026
9	On2it Cybersecurity	Strong evidence	Lj, Netherlands	51-200	83 contacts →
	Strong evidence “ON2IT is a global pure-play cybersecurity service provider.” Source: RevenueBase Database · checked Sep 1, 2026
10	Databalance	Indirect evidence	Re, Netherlands	51-200	60 contacts →
	Indirect evidence “U moet kunnen vertrouwen op de beschikbaarheid en veiligheid van uw bedrijfskritische systemen.” Source: RevenueBase Database · checked Sep 1, 2026
11	Nedscaper	Strong evidence	Amsterdam, Netherlands	51-200	59 contacts →
	Strong evidence “Nedscaper delivers pragmatic, accessible cybersecurity services across Europe and Africa.” Source: RevenueBase Database · checked Sep 1, 2026
12	Group 2000	Indirect evidence	Almelo, Netherlands	51-200	50 contacts →
	Indirect evidence “Group your Architects in Safety and Intelligence Group is your professional partner for legal compliance, resilient and smart networks.” Source: RevenueBase Database · checked Sep 1, 2026
13	Infinigate Nederland	Strong evidence	Aw, Netherlands	1,001-5,000	44 contacts →
	Strong evidence “De Infinigate Group is een value-added distributeur die zich volledig inzet voor duurzame en toonaangevende cybersecurityoplossingen.” Source: RevenueBase Database · checked Sep 1, 2026
14	Hunt & Hackett	Indirect evidence	The Hague, Netherlands	51-200	40 contacts →
	Indirect evidence “Hunt & Hackett helps European companies prevent, detect and respond to today’s most advanced adversaries, safeguarding them against cyberthreats and espionage.” Source: RevenueBase Database · checked Sep 1, 2026
15	Nemesys ICT Groep	Indirect evidence	Oud-Beijerland, Netherlands	51-200	33 contacts →
	Indirect evidence “Je kunt jouw klanten alleen optimaal bedienen als je efficiënt en storingsvrij kunt werken.” Source: RevenueBase Database · checked Sep 1, 2026
16	Ultimum	Indirect evidence	Almere, Netherlands	51-200	31 contacts →
	Indirect evidence “Ultimum has been the IT partner of choice since 1997, when it comes to designing, realizing and managing a secure and future-proof digital infrastructure.” Source: RevenueBase Database · checked Sep 1, 2026
17	Navaio IT Security	Indirect evidence	Haarlem, Netherlands	11-50	30 contacts →
	Indirect evidence “Navaio IT Security helpt bedrijfsgeheimen en gevoelige data te beveiligen en ondersteunt bij het realiseren van compliance (AVG, ISO, NEN, NIST, BIO).” Source: RevenueBase Database · checked Sep 1, 2026
18	Tachyon Security BV	Indirect evidence	Rijswijk, Netherlands	11-50	27 contacts →
	Indirect evidence “Tachyon Security BV is based just outside The Hague in the Netherlands.” Source: RevenueBase Database · checked Sep 1, 2026
19	Cybermeister	Strong evidence	Deventer, Netherlands	51-200	27 contacts →
	Strong evidence “Rechtstreeks uw specialisten regelen bij de grootste cybersecurity-community van Nederland?” Source: RevenueBase Database · checked Sep 1, 2026
20	Lucas IT B.V	Indirect evidence	Albergen, Netherlands	11-50	26 contacts →
	Indirect evidence “Lucas IT is een (h)echt familiebedrijf met Twentse roots sinds We zijn graag het directe verlengstuk van onze partners en zetten graag een stap extra.” Source: RevenueBase Database · checked Sep 1, 2026
21	Lemonshark Cybersecurity	Strong evidence	Utrecht, Netherlands	11-50	25 contacts →
	Strong evidence “Onze missie, visie & strategie Wij willen onze samenleving veiliger maken en dat doen we dankzij de zeer specialistische kennis van onze cybersecurity experts.” Source: RevenueBase Database · checked Sep 1, 2026
22	Un1quely	Indirect evidence	Netherlands	11-50	23 contacts →
	Indirect evidence “Founded in 2021 as a member of BrightMarbles Holding group from Rotterdam, Netherlands.” Source: RevenueBase Database · checked Sep 1, 2026
23	Flowerbed Engineering	Indirect evidence	Haarlem, Netherlands	11-50	21 contacts →
	Indirect evidence “By predefined steps of analysis, we deliver insights in the level of IT-control and risk, implement consolidated and transparent solutions based on best practices and assist in…” Source: RevenueBase Database · checked Sep 1, 2026
24	Purasec B.V	Strong evidence	Zwolle, Netherlands	11-50	21 contacts →
	Strong evidence “PuraSec levert expertise op het gebied van cybersecurity binnen de deelgebieden; mens, beleid en techniek.” Source: RevenueBase Database · checked Sep 1, 2026
25	SPL	Indirect evidence	Arnhem, Netherlands	11-50	20 contacts →
	Indirect evidence “Digitale veiligheid is van levensbelang voor bedrijven, de maatschappij en de mens.” Source: RevenueBase Database · checked Sep 1, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: cybersecurity service providers. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names cybersecurity service providers.
Partial evidence: Its own public description names part of cybersecurity service providers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name cybersecurity service providers. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 509 cybersecurity service providers based in the Netherlands

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Cybersecurity service providers based in the Netherlands at a glance

As of Sep 1, 2026

55.5%Verified-email coverage

28.2%Mobile-number coverage

45.1Average contacts per company

1-10Median size (employees)

9.2%Largest-city concentration · Amsterdam

Sep 1, 2026Page data refreshed

Companies by employee count

1-10

341

11-50

121

51-200

201-500

501-1,000

1,001-5,000

10001+

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among cybersecurity service providers, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in the Netherlands whose own description of what they do matches “cybersecurity service providers”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names cybersecurity service providers), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among cybersecurity service providers, and records with no verified work email. Companies headquartered outside Netherlands are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 12,745 across the full list. 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 1, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Cybersecurity service providers by metro

Cybersecurity service providers in Amsterdam47

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names cybersecurity service providers, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many cybersecurity service providers are there based in the Netherlands?

RevenueBase identified 509 cybersecurity service providers headquartered in the Netherlands as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Palo Alto Networks, headquartered in He, tops this list with the largest team on record.

Which city has the most cybersecurity service providers?

Amsterdam leads with 47 headquartered companies, followed by Rotterdam (17) and Eindhoven (14).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 12,745 verified decision-maker contacts tracked across these 509 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 1, 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 Smart Search, 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.