Company lists · Data refreshed August 2026

Top 25 Computer security companies based in the Netherlands

Name: Computer security companies based in the Netherlands
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Aug 31, 2026 85 companies tracked

RevenueBase identified 85 computer security companies headquartered in the Netherlands as of August 2026 and tracks 19,238 professional contacts across them, including 11,420 with verified work emails and 6,307 with mobile numbers. Amsterdam is the largest hub.

This list covers computer security companies 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 August 31, 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 Aug 31, 2026 86% judged on-target in blind review

85Companies

19,238Contacts tracked

11,420Verified emails

6,307Mobile numbers

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The 25 largest computer security companies based in the Netherlands

Ranked by team size

Top 25 of 85 computer security companies based in the Netherlands, ranked by team size, largest first. Data refreshed Aug 31, 2026. RevenueBase Smart Search rates how each company's information relates to computer security companies: 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	Indirect evidence	He, Netherlands	10001+	18,430 contacts →
	Indirect 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 Aug 31, 2026
2	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 Aug 31, 2026
3	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 Aug 31, 2026
4	Bgtek Cyber Security	Partial evidence	Xw, Netherlands	11-50	33 contacts →
	Partial evidence “BG-TEK was established in 2010 with the aim of providing cyber security services and developing cyber security products.” Source: RevenueBase Database · checked Aug 31, 2026
5	Tachyon Security BV	Partial evidence	Rijswijk, Netherlands	11-50	27 contacts →
	Partial evidence “Tachyon Security BV is based just outside The Hague in the Netherlands.” Source: RevenueBase Database · checked Aug 31, 2026
6	Threadstone Cyber Security	Indirect evidence	Km, Netherlands	11-50	23 contacts →
	Indirect evidence “ThreadStone is uw toonaangevende specialist op het gebied van cybersecurity.” Source: RevenueBase Database · checked Aug 31, 2026
7	Securesult	Indirect evidence	The Hague, Netherlands	11-50	19 contacts →
	Indirect evidence “Bij Securesult richten we ons op het bieden van hoogwaardige informatiebeveiligingsoplossingen voor organisaties van elke omvang.” Source: RevenueBase Database · checked Aug 31, 2026
8	Route443	Indirect evidence	Heerlen, Netherlands	11-50	16 contacts →
	Indirect evidence “Route443 – Uw Cybersecurity Crime Fighters Bij Route443 beschouwen we onszelf als de onverschrokken misdaadbestrijders van het digitale tijdperk.” Source: RevenueBase Database · checked Aug 31, 2026
9	MODAT	Indirect evidence	Netherlands	11-50	13 contacts →
	Indirect evidence “Founded in 2024, Modat is a European research-driven cybersecurity company focused on strengthening cyber resilience for individuals, companies, and governments.” Source: RevenueBase Database · checked Aug 31, 2026
10	Sirius Security	Partial evidence	Bj, Netherlands	1-10	12 contacts →
	Partial evidence “Specialists from Sirius Security have all the skills to help enterprise organisations to secure their IT environment.” Source: RevenueBase Database · checked Aug 31, 2026
11	Secwatch B.V	Partial evidence	Almere, Netherlands	11-50	11 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Aug 31, 2026
12	Sofecta Labs	Partial evidence	Amsterdam, Netherlands	1-10	11 contacts →
	Partial evidence “Introducing Sofecta Labs, the premier spin-off from Sofecta, dedicated to revolutionizing cyber security solutions for businesses.” Source: RevenueBase Database · checked Aug 31, 2026
13	Amitron It-Security	Partial evidence	Db, Netherlands	11-50	10 contacts →
	Partial evidence “Amitron is al dan 34 jaar (sinds 1990) een toonaangevende IT Security Specialist, gelegen in Rotterdam.” Source: RevenueBase Database · checked Aug 31, 2026
14	Cert2connect	Partial evidence	Ad, Netherlands	1-10	9 contacts →
	Partial evidence “Cert2Connect BV is the go-to party in the field of advanced digital security solutions, security services and cyber security.” Source: RevenueBase Database · checked Aug 31, 2026
15	Waker Cyber Security	Partial evidence	Zuidlaren, Netherlands	11-50	9 contacts →
	Partial evidence “Waker Cyber Security is hét cybersecuritybedrijf van het Noorden.” Source: RevenueBase Database · checked Aug 31, 2026
16	Guardian360 B.V	Indirect evidence	Rotterdam, Netherlands	11-50	9 contacts →
	Indirect evidence “Your IT infrastructure is essential to your operation.” Source: RevenueBase Database · checked Aug 31, 2026
17	Yoursafetynet	Partial evidence	Oosterhout, Netherlands	11-50	9 contacts →
	Partial evidence “Within the specific market segment that Media Security Networks operates in on behalf of its customers, we are looking to fulfill a leading solution-oriented role in the field of…” Source: RevenueBase Database · checked Aug 31, 2026
18	Data4 Cyber Security	Indirect evidence	Maastricht-Airport, Netherlands	11-50	8 contacts →
	Indirect evidence “Zoekt u digitale rust en zekerheid?” Source: RevenueBase Database · checked Aug 31, 2026
19	Attic Security	Indirect evidence	Cj, Netherlands	11-50	7 contacts →
	Indirect evidence “With Attic, the hacking experts from Zolder provide organizations with high-end cybersecurity operations.” Source: RevenueBase Database · checked Aug 31, 2026
20	Nerium	Partial evidence	Ae, Netherlands	1-10	7 contacts →
	Partial evidence “Nerium is a cyber security company specialized in monitoring, detecting, and responding to digital attacks.” Source: RevenueBase Database · checked Aug 31, 2026
21	Datect	Indirect evidence	Al, Netherlands	11-50	6 contacts →
	Indirect evidence “Met Datect kun je met een gerust gevoel blijven werken aan je onderneming.” Source: RevenueBase Database · checked Aug 31, 2026
22	Netkey Security	Indirect evidence	Zk, Netherlands	1-10	5 contacts →
	Indirect evidence “Netwerkbeveiliging is nog nooit zo uitdagend geweest.” Source: RevenueBase Database · checked Aug 31, 2026
23	NEO Security	Partial evidence	Amsterdam, Netherlands	11-50	5 contacts →
	Partial evidence “Welcome to Neo Security (a Korper ICT company); your partner in cutting-edge cybersecurity and data protection.” Source: RevenueBase Database · checked Aug 31, 2026
24	Proteqtor IT Security	Indirect evidence	Pv, Netherlands	1-10	4 contacts →
	Indirect evidence “Iedereen verdient een veilige werkplek.” Source: RevenueBase Database · checked Aug 31, 2026
25	Titanium24	Indirect evidence	Ijsselstein, Netherlands	1-10	4 contacts →
	Indirect evidence “Titanium24 is dé partner op het gebied van cybersecurity voor bedrijven die de beveiliging van hun digitale infrastructuur serieus nemen.” Source: RevenueBase Database · checked Aug 31, 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: computer security companies. 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 computer security companies.
Partial evidence: Its own public description names part of computer security companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name computer security companies. 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 85 computer security companies based in the Netherlands

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Computer security companies based in the Netherlands at a glance

As of Aug 31, 2026

59.4%Verified-email coverage

32.8%Mobile-number coverage

226.3Average contacts per company

1-10Median size (employees)

8.2%Largest-city concentration · Amsterdam

Aug 31, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 computer security companies, 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 “computer security companies”. 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 computer security companies), 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 computer security companies, 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, 11,420 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 August 31, 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.

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 computer security companies, 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 computer security companies are there based in the Netherlands?

RevenueBase identified 85 computer security companies headquartered in the Netherlands as of August 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 computer security companies?

Amsterdam leads with 7 headquartered companies, followed by The Hague (5) and Groningen (4).

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 11,420 verified decision-maker contacts tracked across these 85 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on August 31, 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.