Company lists · Data verified August 2026

Top 22 Cybersecurity threat detection companies based in Belgium

Name: Cybersecurity threat detection companies based in Belgium
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 56 companies tracked

There are 56 cybersecurity threat detection companies headquartered in Belgium (RevenueBase, August 2026). RevenueBase tracks 362 professional contacts across them, including 153 with verified work emails and 5 with mobile numbers. Brussels is the largest hub.

This list covers cybersecurity threat detection 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.

56Companies

362Contacts tracked

153Verified emails

5Mobile numbers

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The 22 largest cybersecurity threat detection companies based in Belgium

Ranked by team size

Top 22 of 56 cybersecurity threat detection 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	Xalient Benelux	Asse	201-500	74	53
2	Osavul	n/a	11-50	27	19
3	Sertalink	Belsele	11-50	27	13
4	Jimber	Oostkamp	11-50	21	13
5	Thales Cyber Solutions Belgium	n/a	11-50	20	1
6	Actwise	Kontich	11-50	18	10
7	MCG	Ottignies-Louvain-La-Neuve	1-10	16	8
8	Logstail	Brussels	1-10	12	2
9	Splynter	Kontich	1-10	10	8
10	Curios	n/a	1-10	10	4
11	Resilix	n/a	1-10	5	3
12	Apex Networks	Wingene	1-10	4	3
13	Icteryus	Gentbrugge	1-10	4	2
14	Dashan	Tournai	1-10	4	2
15	Infosec4you	Bruxelles Bruxelles	11-50	3	2
16	OZOOS	Waterloo	1-10	3	2
17	Threatproof	n/a	11-50	2	2
18	Kemsec	Vilvoorde	1-10	2	2
19	Layer 9 Networks	Sint-Amandsberg	1-10	2	1
20	Flowz-It Cyberprotection For Smes	n/a	1-10	1	1
21	Securenza	Genk	1-10	1	1
22	Justguard	Geel	1-10	1	1

Showing 22 of 56 cybersecurity threat detection companies based in Belgium

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Cybersecurity threat detection companies based in Belgium at a glance

As of Aug 28, 2026

1-10Median size (employees)

BrusselsLargest hub · 3 HQs

5Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

201-500

501-1,000

Cybersecurity threat detection companies by metro

Metro	Companies
Cybersecurity threat detection companies in Brussels	3
Cybersecurity threat detection companies in Kontich	2
Cybersecurity threat detection companies in Erpe-Mere	2
Cybersecurity threat detection companies in Mont-Saint-Guibert	2
Cybersecurity threat detection companies in Kortrijk	2
Cybersecurity threat detection companies in Wemmel	1
Cybersecurity threat detection companies in Lommel	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 “cybersecurity threat detection 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; 0 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 threat detection companies are there based in Belgium?

There are 56 cybersecurity threat detection companies headquartered in Belgium as of August 2026 (RevenueBase).

What is the largest company on this list?

Xalient Benelux, headquartered in Asse, tops this list with the largest team on record.

Which city has the most cybersecurity threat detection companies?

Brussels leads with 3 headquartered companies, followed by Kontich (2) and Erpe-Mere (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 153 verified decision-maker contacts tracked across these 56 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.