Company lists · Data verified August 2026

Top 25 Cybersecurity audit companies based in the Netherlands

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 225 companies tracked

There are 225 cybersecurity audit companies headquartered in the Netherlands (RevenueBase, August 2026). RevenueBase tracks 1,616 professional contacts across them, including 468 with verified work emails and 69 with mobile numbers. Amsterdam is the largest hub.

This list covers cybersecurity audit companies headquartered in the Netherlands, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

225Companies

1,616Contacts tracked

468Verified emails

69Mobile numbers

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The 25 largest cybersecurity audit companies based in the Netherlands

Ranked by team size

Top 25 of 225 cybersecurity audit companies based in the Netherlands, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Fox-It	Gk	201-500	237	128
2	Comsec	Amsterdam	51-200	140	17
3	Surelock IT Security Services	Woerden	11-50	37	33
4	Inaudit BV	Mt	11-50	24	17
5	LBVD	Delft	11-50	24	5
6	Threadstone Cyber Security	Km	11-50	23	13
7	Securesult	The Hague	11-50	19	8
8	Dongit	Xc	11-50	18	11
9	2-Control	Ba	11-50	18	10
10	Reqon B.V	Leiderdorp	11-50	16	11
11	Cyber Seals	Utrecht	11-50	15	9
12	Base Cyber Security	Ak	11-50	14	3
13	Schippers IT Your Digital Specialist	Oosterhout	11-50	13	8
14	Risguard	Rotterdam	11-50	12	8
15	Secwatch B.V	Almere	11-50	11	8
16	Amitron It-Security	Db	11-50	10	6
17	Cyber Security Challengers	Jd	11-50	9	9
18	Cyberus	Den Haag	11-50	9	7
19	Soteryan	Amsterdam	11-50	8	3
20	Attic Security	Cj	11-50	7	5
21	Websec B.V	Cd	11-50	7	1
22	Netboss BV	Dx	11-50	6	4
23	Datect	Al	11-50	6	3
24	Blueprint Cyber Security	The Hague	11-50	6	1
25	Cqure Consulting	Hj	11-50	5	1

Showing 25 of 225 cybersecurity audit companies based in the Netherlands

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Cybersecurity audit companies based in the Netherlands at a glance

As of Aug 28, 2026

1-10Median size (employees)

AmsterdamLargest hub · 19 HQs

69Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

164

11-50

51-200

201-500

Cybersecurity audit companies by metro

Metro	Companies
Cybersecurity audit companies in Amsterdam	19
Cybersecurity audit companies in The Hague	8
Cybersecurity audit companies in Utrecht	8
Cybersecurity audit companies in Eindhoven	8
Cybersecurity audit companies in Rotterdam	7
Cybersecurity audit companies in Zoetermeer	4
Cybersecurity audit companies in Apeldoorn	4

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “cybersecurity audit companies”, with match quality audited by blind human judging, and headquartered in the Netherlands.
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: Contact records re-verify on a rolling cadence; 0 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many cybersecurity audit companies are there based in the Netherlands?

There are 225 cybersecurity audit companies headquartered in the Netherlands as of August 2026 (RevenueBase).

What is the largest company on this list?

Fox-It, headquartered in Gk, tops this list with the largest team on record.

Which city has the most cybersecurity audit companies?

Amsterdam leads with 19 headquartered companies, followed by The Hague (8) and Utrecht (8).

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 468 verified decision-maker contacts tracked across these 225 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.