Company lists · Data refreshed September 2026

Top 25 Cybersecurity services firms based in the Netherlands

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

Compiled by the RevenueBase Data Team Data refreshed Sep 14, 2026 491 companies tracked

RevenueBase identified 491 cybersecurity services firms headquartered in the Netherlands as of September 2026 and tracks 5,245 professional contacts across them, including 2,105 with verified work emails. Amsterdam is the largest hub.

This list covers cybersecurity services firms 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 14, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 14, 2026 86% judged on-target in blind review

491Companies

5,245Contacts tracked

2,105Verified emails

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The 25 largest cybersecurity services firms based in the Netherlands

Ranked by team size

Top 25 of 491 cybersecurity services firms based in the Netherlands, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to cybersecurity services firms: 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	Irdeto	Strong evidence	Hoofddorp, NetherlandsHQ checked Sep 14, 2026	1,001-5,000	1,026 contacts →
	Strong evidence “Irdeto, a CANAL+ company, is the world leader in digital platform cybersecurity, empowering businesses to innovate for a secure, connected future.” Source: RevenueBase Database · checked Sep 14, 2026
2	Fox-It	Indirect evidence	Rijswijk, NetherlandsHQ checked Sep 14, 2026	201-500	233 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 14, 2026
3	EYE Security	Indirect evidence	Den Haag, NetherlandsHQ checked Sep 14, 2026	201-500	217 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 14, 2026
4	Northwave Cyber Security	Indirect evidence	Utrecht, NetherlandsHQ checked Sep 14, 2026	201-500	213 contacts →
	Indirect evidence “Northwave Northwave offers an Intelligent combination of cyber security services to protect your information.” Source: RevenueBase Database · checked Sep 14, 2026
5	Quality	Indirect evidence	Capelle Aan Den Ijssel, NetherlandsHQ checked Sep 14, 2026	n/a	183 contacts →
	Indirect evidence “We help organizations gain control over their digital foundation.” Source: RevenueBase Database · checked Sep 14, 2026
6	Conscia Nederland	Strong evidence	Gouda, NetherlandsHQ checked Sep 14, 2026	201-500	152 contacts →
	Strong evidence “Wij ontwerpen, implementeren en beheren veilige IT-infrastructuur en Cybersecurity Services.” Source: RevenueBase Database · checked Sep 14, 2026
7	Dataexpert	Indirect evidence	Veenendaal, NetherlandsHQ checked Sep 14, 2026	51-200	113 contacts →
	Indirect evidence “DataExpert’s mission is to empower law enforcement, military, intelligence agencies, customs, other government organizations, banks, telecommunication companies, insurance…” Source: RevenueBase Database · checked Sep 14, 2026
8	Pinewood	Strong evidence	Delft, NetherlandsHQ checked Sep 14, 2026	51-200	104 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 14, 2026
9	Tesorion	Indirect evidence	Nieuwegein, NetherlandsHQ checked Sep 14, 2026	51-200	91 contacts →
	Indirect evidence “Tesorion is een Nederlandse, onafhankelijke Managed Security Services Provider (MSSP).” Source: RevenueBase Database · checked Sep 14, 2026
10	On2it Cybersecurity	Strong evidence	Lj, NetherlandsHQ checked Sep 14, 2026	51-200	81 contacts →
	Strong evidence “ON2IT is a global pure-play cybersecurity service provider.” Source: RevenueBase Database · checked Sep 14, 2026
11	Xalient Benelux	Indirect evidence	The Hague, NetherlandsHQ checked Sep 14, 2026	201-500	72 contacts →
	Indirect evidence “Xalient ondersteunt toonaangevende organisaties bij het beschermen van hun meest waardevolle middelen: hun medewerkers, applicaties en data.” Source: RevenueBase Database · checked Sep 14, 2026
12	Nedscaper	Strong evidence	Schiphol, NetherlandsHQ checked Sep 14, 2026	51-200	60 contacts →
	Strong evidence “Nedscaper delivers pragmatic, accessible cybersecurity services across Europe and Africa.” Source: RevenueBase Database · checked Sep 14, 2026
13	Group 2000	Indirect evidence	Almelo, NetherlandsHQ checked Sep 14, 2026	51-200	51 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 14, 2026
14	Hunt & Hackett	Indirect evidence	The Hague, NetherlandsHQ checked Sep 14, 2026	51-200	38 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 14, 2026
15	Surelock IT Security Services	Indirect evidence	3447gg, NetherlandsHQ checked Sep 14, 2026	11-50	37 contacts →
	Indirect evidence “Surelock IT Security Services helpt organisatie inzicht te krijgen in de IT-kwetsbaarheden van hun organisatie.” Source: RevenueBase Database · checked Sep 14, 2026
16	Zerocopter	Indirect evidence	Amsterdam, NetherlandsHQ checked Sep 14, 2026	11-50	35 contacts →
	Indirect evidence “Working as ethical hackers and security researchers over the past decade we learned that online security became a Wild West for companies.” Source: RevenueBase Database · checked Sep 14, 2026
17	Securify	Strong evidence	Amsterdam, NetherlandsHQ checked Sep 14, 2026	11-50	34 contacts →
	Strong evidence “Penetration Testing \| Agile Security Testing \| Red Teaming Securify is a cybersecurity company with a team of professional and passionate ethical hackers, secure coding experts…” Source: RevenueBase Database · checked Sep 14, 2026
18	The S-Unit	Indirect evidence	Utrecht, NetherlandsHQ checked Sep 14, 2026	11-50	28 contacts →
	Indirect evidence “Omdat IT van onschatbare waarde is om commerciële en maatschappelijke doelen te verwezenlijken zijn pogingen om onrechtmatige toegang tot uw informatie te krijgen helaas aan de…” Source: RevenueBase Database · checked Sep 14, 2026
19	Tachyon Security BV	Indirect evidence	Rijswijk, NetherlandsHQ checked Sep 14, 2026	11-50	28 contacts →
	Indirect evidence “Tachyon Security BV is based just outside The Hague in the Netherlands.” Source: RevenueBase Database · checked Sep 14, 2026
20	Cybermeister	Strong evidence	Deventer, NetherlandsHQ checked Sep 14, 2026	51-200	27 contacts →
	Strong evidence “Rechtstreeks uw specialisten regelen bij de grootste cybersecurity-community van Nederland?” Source: RevenueBase Database · checked Sep 14, 2026
21	Lemonshark Cybersecurity	Strong evidence	Utrecht, NetherlandsHQ checked Sep 14, 2026	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 14, 2026
22	LBVD	Strong evidence	Delft, NetherlandsHQ checked Sep 14, 2026	11-50	25 contacts →
	Strong evidence “LBVD is een Delfts onderzoeks- en adviesbureau gespecialiseerd in digitale veiligheid, cybersecurity (ICT-security) en informatiebeveiliging, met 20+ jaar ervaring.” Source: RevenueBase Database · checked Sep 14, 2026
23	Nubix BV	Indirect evidence	Haaksbergen, NetherlandsHQ checked Sep 14, 2026	11-50	24 contacts →
	Indirect evidence “At Nubix, we stand for innovation and top quality in IT solutions.” Source: RevenueBase Database · checked Sep 14, 2026
24	Safesqr	Strong evidence	Veenendaal, NetherlandsHQ checked Sep 14, 2026	11-50	23 contacts →
	Strong evidence “Safesqr is a European, human-first cybersecurity company.” Source: RevenueBase Database · checked Sep 14, 2026
25	Harbers Group By Alistar	Strong evidence	Lichtenvoorde, NetherlandsHQ checked Sep 14, 2026	11-50	23 contacts →
	Strong evidence “Over Harbers Group Harbers Group helpt organisaties vooruit met slimme ICT-oplossingen, innovatieve software en sterke cybersecurity.” Source: RevenueBase Database · checked Sep 14, 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 services firms. 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 services firms.
Partial evidence: Its own public description names part of cybersecurity services firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name cybersecurity services firms. 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 491 cybersecurity services firms based in the Netherlands

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Cybersecurity services firms based in the Netherlands at a glance

As of Sep 14, 2026

40.1%Verified-email coverage

10.7Average contacts per company

1-10Median size (employees)

9.8%Largest-city concentration · Amsterdam

Sep 14, 2026Page data refreshed

Companies by employee count

1-10

336

11-50

116

51-200

201-500

501-1,000

1,001-5,000

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 491 companies.

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 services firms, 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 services firms”. 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 services firms), 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 services firms, 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, 2,105 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 14, 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 services firms by metro

Cybersecurity services firms in Amsterdam48

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 services firms, 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 services firms are there based in the Netherlands?

RevenueBase identified 491 cybersecurity services firms 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?

Irdeto, headquartered in Ls, tops this list with the largest team on record.

Which city has the most cybersecurity services firms?

Amsterdam leads with 48 headquartered companies, followed by The Hague (17) and Utrecht (16).

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 2,105 verified decision-maker contacts tracked across these 491 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 14, 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.