Company lists · Data verified August 2026

Top 25 Cybersecurity companies in Belgium

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 252 companies tracked

Our directory lists 252 cybersecurity companies in Belgium, with 8,035 professional contacts and 2,679 email addresses. The list was last updated in August 2026, and Brussels is the single most-represented city among the companies listed.

Cybersecurity companies provide products and services that protect systems, networks, applications, devices, and data from unauthorized access, disruption, or misuse. This list covers companies that provide cybersecurity products, services, consulting, assessments, monitoring, incident response, or related protection for digital systems and data. Ranked by team size, largest first. Data current as of August 28, 2026.

252Companies

8,035Contacts tracked

2,679Verified emails

291Mobile numbers

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The 25 largest cybersecurity companies in Belgium

Ranked by team size

Top 25 of 252 cybersecurity companies 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	Intigriti	Antwerpen	n/a	658	81
3	Approach Cyber	Mechelen	51-200	93	48
4	Wibu-Systems	Zaventem	51-200	87	12
5	Phished	Leuven	11-50	76	55
6	Xalient Benelux	Asse	201-500	74	53
7	Skyforce	n/a	11-50	59	1
8	Leonardo Belgium	Grace-Hollogne	51-200	51	1
9	ACEN	Kontich	51-200	50	30
10	Secwise	Leuven	11-50	29	19
11	Osavul	n/a	11-50	27	19
12	Sertalink	Belsele	11-50	27	13
13	Jimber	Oostkamp	11-50	21	13
14	Upright Security	Kontich	11-50	21	13
15	Resilient Security	n/a	11-50	20	14
16	Thales Cyber Solutions Belgium	n/a	11-50	20	1
17	The Security Factory	Niel	11-50	19	12
18	Actwise	Kontich	11-50	18	10
19	Redsystem	Froyennes	11-50	18	7
20	Pretera	Brussels	11-50	18	6
21	Soterics, Your End-To-End Partner In OT Security	Kontich	11-50	10	4
22	Trium Security	Aarschot	11-50	9	4
23	Outpost24 Benelux Ex-Sweepatic	Leuven	11-50	8	4
24	4net	Mechelen	11-50	7	5
25	lisam.cloud	Ecaussinnes	11-50	6	5
26	Cyberplan	Oostkamp	11-50	6	4
27	Focal Point SRL	n/a	11-50	6	3
28	YASKA	Scheldewindeke	11-50	5	2

Showing 25 of 252 cybersecurity companies in Belgium

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Cybersecurity companies in Belgium at a glance

As of Aug 28, 2026

1-10Median size (employees)

BrusselsLargest hub · 28 HQs

291Contacts with mobile numbers

8Emails re-verified in last 30 days

Companies by employee count

1-10

187

11-50

51-200

201-500

501-1,000

1,001-5,000

Companies by metro

Metro	Companies
Cybersecurity companies in Brussels	28
Cybersecurity companies in Antwerp	15
Cybersecurity companies in Kontich	9
Cybersecurity companies in Leuven	7
Cybersecurity companies in Antwerpen	6
Cybersecurity companies in Gent	4
Cybersecurity companies in Mechelen	4

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 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; 8 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 companies are in the directory?

The directory lists 252 cybersecurity companies in Belgium.

Which city has the most cybersecurity companies?

Brussels is the single most-represented city among the cybersecurity companies on the list.

How many contacts are available for cybersecurity companies?

The directory includes 8,035 professional contacts and 2,679 email addresses for the listed cybersecurity companies.

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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.