Company lists · Data verified August 2026

Top 25 Cybersecurity consulting firms based in the Netherlands

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 597 companies tracked

There are 597 cybersecurity consulting firms headquartered in the Netherlands (RevenueBase, August 2026). RevenueBase tracks 23,341 professional contacts across them, including 12,794 with verified work emails and 6,519 with mobile numbers. Amsterdam is the largest hub.

This list covers cybersecurity consulting firms 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.

597Companies

23,341Contacts tracked

12,794Verified emails

6,519Mobile numbers

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The 25 largest cybersecurity consulting firms based in the Netherlands

Ranked by team size

Top 25 of 597 cybersecurity consulting firms 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	Outpost24	Xx	201-500	276	132
3	Fox-It	Gk	201-500	237	128
4	EYE Security	Den Haag	201-500	210	114
5	Conscia Nederland	Ah	201-500	153	119
6	Comsec	Amsterdam	51-200	140	17
7	Dataexpert	Pd	51-200	114	65
8	Pinewood	Xj	51-200	106	25
9	On2it Cybersecurity	Lj	51-200	83	44
10	Cuccibu	Eindhoven	51-200	79	1
11	Databalance	Re	51-200	60	36
12	Nedscaper	Amsterdam	51-200	59	37
13	Group 2000	Almelo	51-200	50	19
14	Iris ONE	Rosmalen	51-200	45	38
15	Hunt & Hackett	The Hague	51-200	40	23
16	Securify	Ca	11-50	38	27
17	Surelock IT Security Services	Woerden	11-50	37	33
18	Ultimum	Almere	51-200	31	6
19	The S-Unit	Utrecht	11-50	28	19
20	Cybermeister	Deventer	51-200	27	1
21	Lemonshark Cybersecurity	Utrecht	11-50	25	21
22	Vest Information Security	Al	11-50	23	16
23	Un1quely	n/a	11-50	23	16
24	Threadstone Cyber Security	Km	11-50	23	13
25	Flowerbed Engineering	Haarlem	11-50	21	13

Showing 25 of 597 cybersecurity consulting firms based in the Netherlands

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Cybersecurity consulting firms based in the Netherlands at a glance

As of Aug 28, 2026

1-10Median size (employees)

AmsterdamLargest hub · 58 HQs

6,519Contacts with mobile numbers

20Emails re-verified in last 30 days

Companies by employee count

1-10

437

11-50

117

51-200

201-500

501-1,000

1,001-5,000

10001+

Cybersecurity consulting firms by metro

Metro	Companies
Cybersecurity consulting firms in Amsterdam	58
Cybersecurity consulting firms in Utrecht	22
Cybersecurity consulting firms in Eindhoven	20
Cybersecurity consulting firms in Rotterdam	18
Cybersecurity consulting firms in The Hague	16
Cybersecurity consulting firms in Zoetermeer	11
Cybersecurity consulting firms in Amersfoort	10

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 consulting firms”, 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; 20 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 consulting firms are there based in the Netherlands?

There are 597 cybersecurity consulting firms 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 consulting firms?

Amsterdam leads with 58 headquartered companies, followed by Utrecht (22) and Eindhoven (20).

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 12,794 verified decision-maker contacts tracked across these 597 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.