Company lists · Data verified August 2026

Top 25 Data security companies based in the Netherlands

Name: Data security 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 74 companies tracked

There are 74 data security companies headquartered in the Netherlands (RevenueBase, August 2026). RevenueBase tracks 1,010 professional contacts across them, including 285 with verified work emails and 69 with mobile numbers. Amsterdam is the largest hub.

This list covers data 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. Data current as of August 28, 2026.

74Companies

1,010Contacts tracked

285Verified emails

69Mobile numbers

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The 25 largest data security companies based in the Netherlands

Ranked by team size

Top 25 of 74 data security 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	Datalocker	Sittard	51-200	49	26
3	Avensus	Kk	11-50	26	15
4	Securesult	The Hague	11-50	19	8
5	First Privacy	Amsterdam	11-50	17	10
6	Route443	Heerlen	11-50	16	10
7	E3 Benelux	Ak	11-50	14	10
8	Immutec B.V	Kd	11-50	13	8
9	Emproof	Zx	11-50	12	7
10	Sirius Security	Bj	1-10	12	3
11	Sofecta Labs	Amsterdam	1-10	11	8
12	Siberson	Xv	11-50	11	6
13	Amitron It-Security	Db	11-50	10	6
14	Cert2connect	Ad	1-10	9	7
15	Waker Cyber Security	Zuidlaren	11-50	9	5
16	Data4 Cyber Security	Maastricht-Airport	11-50	8	7
17	Securiment	Amsterdam	11-50	8	2
18	Netkey Security	Zk	1-10	5	2
19	NEO Security	Amsterdam	11-50	5	1
20	Improves IT Security	Sliedrecht	1-10	4	3
21	Eviden Digital Security NL	Pl	201-500	4	1
22	Magic Stone Cyber Security BV	Amstelveen	1-10	4	1
23	Sinteg	Rotterdam	1-10	4	1
24	Tien Security	Mijdrecht	1-10	4	1
25	Securityhive	n/a	11-50	3	1

Showing 25 of 74 data security companies based in the Netherlands

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Data security companies based in the Netherlands at a glance

As of Aug 28, 2026

1-10Median size (employees)

AmsterdamLargest hub · 9 HQs

69Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

Data security companies by metro

Metro	Companies
Data security companies in Amsterdam	9
Data security companies in Rotterdam	4
Data security companies in Zoetermeer	2
Data security companies in Nijmegen	2
Data security companies in Drachten	2
Data security companies in Aa	2
Data security companies in Amersfoort	2
Data security companies in Db	2

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 “data security 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 data security companies are there based in the Netherlands?

There are 74 data security 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 data security companies?

Amsterdam leads with 9 headquartered companies, followed by Rotterdam (4) and Zoetermeer (2).

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 285 verified decision-maker contacts tracked across these 74 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.