Company lists · Data verified August 2026

Top 25 Cybersecurity consulting agencies based in the Netherlands

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 620 companies tracked

There are 620 cybersecurity consulting agencies headquartered in the Netherlands (RevenueBase, August 2026). RevenueBase tracks 5,115 professional contacts across them, including 1,759 with verified work emails and 290 with mobile numbers. Amsterdam is the largest hub.

This list covers cybersecurity consulting agencies 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.

620Companies

5,115Contacts tracked

1,759Verified emails

290Mobile numbers

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The 25 largest cybersecurity consulting agencies based in the Netherlands

Ranked by team size

Top 25 of 620 cybersecurity consulting agencies 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	Outpost24	Xx	201-500	276	132
2	Fox-It	Gk	201-500	237	128
3	EYE Security	Den Haag	201-500	210	114
4	Conscia Nederland	Ah	201-500	153	119
5	Comsec	Amsterdam	51-200	140	17
6	Freshminds	Zl	51-200	138	64
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	Nemesys ICT Groep	Oud-Beijerland	51-200	33	16
17	Ferwerda Beveiliging	Groningen	11-50	30	9
18	Cybermeister	Deventer	51-200	27	1
19	Lemonshark Cybersecurity	Utrecht	11-50	25	21
20	Un1quely	n/a	11-50	23	16
21	Vest Information Security	Al	11-50	23	16
22	Harbers Group By Alistar	Lichtenvoorde	11-50	23	14
23	Threadstone Cyber Security	Km	11-50	23	13
24	Flowerbed Engineering	Haarlem	11-50	21	13
25	Purasec B.V	Zwolle	11-50	21	13

Showing 25 of 620 cybersecurity consulting agencies based in the Netherlands

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 1,759 reachable decision-makers.

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Cybersecurity consulting agencies based in the Netherlands at a glance

As of Aug 28, 2026

1-10Median size (employees)

AmsterdamLargest hub · 57 HQs

290Contacts with mobile numbers

1Emails re-verified in last 30 days

Companies by employee count

1-10

452

11-50

124

51-200

201-500

501-1,000

1,001-5,000

Cybersecurity consulting agencies by metro

Metro	Companies
Cybersecurity consulting agencies in Amsterdam	57
Cybersecurity consulting agencies in Utrecht	20
Cybersecurity consulting agencies in Eindhoven	20
Cybersecurity consulting agencies in The Hague	19
Cybersecurity consulting agencies in Rotterdam	18
Cybersecurity consulting agencies in Zoetermeer	12
Cybersecurity consulting agencies in Amersfoort	11

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 agencies”, 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; 1 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 agencies are there based in the Netherlands?

There are 620 cybersecurity consulting agencies headquartered in the Netherlands as of August 2026 (RevenueBase).

What is the largest company on this list?

Outpost24, headquartered in Xx, tops this list with the largest team on record.

Which city has the most cybersecurity consulting agencies?

Amsterdam leads with 57 headquartered companies, followed by Utrecht (20) 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 1,759 verified decision-maker contacts tracked across these 620 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.