Company lists · Data verified August 2026

Top 25 Cybersecurity and defense software companies based in the Netherlands

Name: Cybersecurity and defense software 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 96 companies tracked

There are 96 cybersecurity and defense software companies headquartered in the Netherlands (RevenueBase, August 2026). RevenueBase tracks 20,089 professional contacts across them, including 11,598 with verified work emails and 6,338 with mobile numbers. Amsterdam is the largest hub.

This list covers cybersecurity and defense software 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.

96Companies

20,089Contacts tracked

11,598Verified emails

6,338Mobile numbers

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The 25 largest cybersecurity and defense software companies based in the Netherlands

Ranked by team size

Top 25 of 96 cybersecurity and defense software 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	Palo Alto Networks	He	10001+	18,430	11,119
2	Fox-It	Gk	201-500	237	128
3	EYE Security	Den Haag	201-500	210	114
4	On2it Cybersecurity	Lj	51-200	83	44
5	Nedscaper	Amsterdam	51-200	59	37
6	Hunt & Hackett	The Hague	51-200	40	23
7	Bgtek Cyber Security	Xw	11-50	33	9
8	Un1quely	n/a	11-50	23	16
9	Threadstone Cyber Security	Km	11-50	23	13
10	Applied Risk	Ej	11-50	14	12
11	MODAT	n/a	11-50	13	6
12	Emproof	Zx	11-50	12	7
13	Sirius Security	Bj	1-10	12	3
14	Sofecta Labs	Amsterdam	1-10	11	8
15	Cert2connect	Ad	1-10	9	7
16	Waker Cyber Security	Zuidlaren	11-50	9	5
17	Data4 Cyber Security	Maastricht-Airport	11-50	8	7
18	Securiment	Amsterdam	11-50	8	2
19	Secian	Amsterdam	11-50	8	1
20	Attic Security	Cj	11-50	7	5
21	Nerium	Ae	1-10	7	4
22	Arma Instruments	Mijdrecht	51-200	7	3
23	Websec B.V	Cd	11-50	7	1
24	Absolute Security B.V	Bm	1-10	5	2
25	Netkey Security	Zk	1-10	5	2

Showing 25 of 96 cybersecurity and defense software companies based in the Netherlands

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Cybersecurity and defense software companies based in the Netherlands at a glance

As of Aug 28, 2026

11-50Median size (employees)

AmsterdamLargest hub · 12 HQs

6,338Contacts with mobile numbers

19Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

10001+

Cybersecurity and defense software companies by metro

Metro	Companies
Cybersecurity and defense software companies in Amsterdam	12
Cybersecurity and defense software companies in The Hague	4
Cybersecurity and defense software companies in Rotterdam	3
Cybersecurity and defense software companies in Groningen	2
Cybersecurity and defense software companies in Den Haag	2
Cybersecurity and defense software companies in Ad	2
Cybersecurity and defense software companies in Bj	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 “cybersecurity and defense software 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; 19 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 and defense software companies are there based in the Netherlands?

There are 96 cybersecurity and defense software companies headquartered in the Netherlands as of August 2026 (RevenueBase).

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 and defense software companies?

Amsterdam leads with 12 headquartered companies, followed by The Hague (4) and Rotterdam (3).

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 11,598 verified decision-maker contacts tracked across these 96 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.