Company lists · Data verified August 2026

Top 17 Data security companies based in Belgium

Name: Data security companies based in Belgium
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 38 companies tracked

There are 38 data security companies headquartered in Belgium (RevenueBase, August 2026). RevenueBase tracks 3,944 professional contacts across them, including 2,196 with verified work emails and 65 with mobile numbers. Sint-Niklaas is the largest hub.

This list covers data security companies headquartered in Belgium, 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.

38Companies

3,944Contacts tracked

2,196Verified emails

65Mobile numbers

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The 17 largest data security companies based in Belgium

Ranked by team size

Top 17 of 38 data security companies based in Belgium, 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	Orange Cyberdefense	n/a	1,001-5,000	3,706	2,083
2	Xalient Benelux	Asse	201-500	74	53
3	Jimber	Oostkamp	11-50	21	13
4	Thales Cyber Solutions Belgium	n/a	11-50	20	1
5	Actwise	Kontich	11-50	18	10
6	MCG	Ottignies-Louvain-La-Neuve	1-10	16	8
7	Curios	n/a	1-10	10	4
8	Netcure	Zaventem	1-10	9	7
9	Brand Solutions Europe	Sint-Niklaas	1-10	8	4
10	Resilix	n/a	1-10	5	3
11	Icteryus	Gentbrugge	1-10	4	2
12	Infosec4you	Bruxelles Bruxelles	11-50	3	2
13	Threatproof	n/a	11-50	2	2
14	Odsc Sprl	Namur	1-10	2	1
15	Trust1team	n/a	1-10	2	1
16	Flowz-It Cyberprotection For Smes	n/a	1-10	1	1
17	Securenza	Genk	1-10	1	1

Showing 17 of 38 data security companies based in Belgium

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Data security companies based in Belgium at a glance

As of Aug 28, 2026

1-10Median size (employees)

Sint-NiklaasLargest hub · 2 HQs

65Contacts with mobile numbers

4Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

Data security companies by metro

Metro	Companies
Data security companies in Sint-Niklaas	2
Data security companies in Mont-Saint-Guibert	2
Data security companies in Brussels	2
Data security companies in Bruxelles Bruxelles	1
Data security companies in Ohain	1
Data security companies in Ghent	1
Data security companies in Asse	1

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 Belgium.
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; 4 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 Belgium?

There are 38 data security companies headquartered in Belgium as of August 2026 (RevenueBase).

What is the largest company on this list?

Orange Cyberdefense, headquartered in Belgium, tops this list with the largest team on record.

Which city has the most data security companies?

Sint-Niklaas leads with 2 headquartered companies, followed by Mont-Saint-Guibert (2) and Brussels (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 2,196 verified decision-maker contacts tracked across these 38 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.