Company lists · Data verified August 2026

Top 25 Data security consulting firms based in the Netherlands

Name: Data security 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 424 companies tracked

There are 424 data security consulting firms headquartered in the Netherlands (RevenueBase, August 2026). RevenueBase tracks 2,606 professional contacts across them, including 725 with verified work emails and 167 with mobile numbers. Amsterdam is the largest hub.

This list covers data security 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.

424Companies

2,606Contacts tracked

725Verified emails

167Mobile numbers

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The 25 largest data security consulting firms based in the Netherlands

Ranked by team size

Top 25 of 424 data security 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	Comsec	Amsterdam	51-200	140	17
2	Pinewood	Xj	51-200	106	25
3	Protiviti The Netherlands	Amsterdam	5,001-10,000	90	41
4	Cuccibu	Eindhoven	51-200	79	1
5	Divetro	La	51-200	62	35
6	Databalance	Re	51-200	60	36
7	Iris ONE	Rosmalen	51-200	45	38
8	Navaio IT Security	Haarlem	11-50	30	20
9	Ferwerda Beveiliging	Groningen	11-50	30	9
10	LBVD	Delft	11-50	24	5
11	Vest Information Security	Al	11-50	23	16
12	Threadstone Cyber Security	Km	11-50	23	13
13	Purasec B.V	Zwolle	11-50	21	13
14	Securesult	The Hague	11-50	19	8
15	Dongit	Xc	11-50	18	11
16	2-Control	Ba	11-50	18	10
17	VMB Security & Services	Ll	51-200	18	3
18	First Privacy	Amsterdam	11-50	17	10
19	Bitsiel	Groningen	11-50	16	12
20	Cyber Seals	Utrecht	11-50	15	9
21	E3 Benelux	Ak	11-50	14	10
22	Base Cyber Security	Ak	11-50	14	3
23	Immutec B.V	Kd	11-50	13	8
24	Schippers IT Your Digital Specialist	Oosterhout	11-50	13	8
25	Safetech P&r Groep	Jv	11-50	13	1

Showing 25 of 424 data security consulting firms based in the Netherlands

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Data security consulting firms based in the Netherlands at a glance

As of Aug 28, 2026

1-10Median size (employees)

AmsterdamLargest hub · 42 HQs

167Contacts with mobile numbers

1Emails re-verified in last 30 days

Companies by employee count

1-10

325

11-50

51-200

201-500

5,001-10,000

Data security consulting firms by metro

Metro	Companies
Data security consulting firms in Amsterdam	42
Data security consulting firms in Zoetermeer	11
Data security consulting firms in The Hague	11
Data security consulting firms in Utrecht	11
Data security consulting firms in Rotterdam	10
Data security consulting firms in Eindhoven	10
Data security consulting firms in Den Haag	8

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 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; 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 data security consulting firms are there based in the Netherlands?

There are 424 data security consulting firms headquartered in the Netherlands as of August 2026 (RevenueBase).

What is the largest company on this list?

Comsec, headquartered in Amsterdam, tops this list with the largest team on record.

Which city has the most data security consulting firms?

Amsterdam leads with 42 headquartered companies, followed by Zoetermeer (11) and The Hague (11).

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 725 verified decision-maker contacts tracked across these 424 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.