Company lists · Data verified August 2026

Top 25 Cybersecurity engineers based in Belgium

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 122 companies tracked

There are 122 cybersecurity engineers headquartered in Belgium (RevenueBase, August 2026). RevenueBase tracks 4,437 professional contacts across them, including 2,378 with verified work emails and 82 with mobile numbers. Brussels is the largest hub.

This list covers cybersecurity engineers 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.

122Companies

4,437Contacts tracked

2,378Verified emails

82Mobile numbers

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The 25 largest cybersecurity engineers based in Belgium

Ranked by team size

Top 25 of 122 cybersecurity engineers 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	Approach Cyber	Mechelen	51-200	93	48
3	Xalient Benelux	Asse	201-500	74	53
4	ACEN	Kontich	51-200	50	30
5	Secwise	Leuven	11-50	29	19
6	Sertalink	Belsele	11-50	27	13
7	Resilient Security	n/a	11-50	20	14
8	Thales Cyber Solutions Belgium	n/a	11-50	20	1
9	Actwise	Kontich	11-50	18	10
10	Redsystem	Froyennes	11-50	18	7
11	MCG	Ottignies-Louvain-La-Neuve	1-10	16	8
12	Splynter	Kontich	1-10	10	8
13	Curios	n/a	1-10	10	4
14	Brand Solutions Europe	Sint-Niklaas	1-10	8	4
15	4net	Mechelen	11-50	7	5
16	Fox&fish Cyberdefense	Aarschot	1-10	6	5
17	Cyberplan	Oostkamp	11-50	6	4
18	Focal Point SRL	n/a	11-50	6	3
19	Guardis	Hannut	1-10	5	2
20	Qfirst Nis2	Bilzen	1-10	4	4
21	Safepoint	Zoutleeuw	1-10	4	2
22	Icteryus	Gentbrugge	1-10	4	2
23	Infosec4you	Bruxelles Bruxelles	11-50	3	2
24	Cybervalue	Leuven	1-10	3	2
25	Cybereyes	Antwerpen Flemish	1-10	3	1

Showing 25 of 122 cybersecurity engineers based in Belgium

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Cybersecurity engineers based in Belgium at a glance

As of Aug 28, 2026

1-10Median size (employees)

BrusselsLargest hub · 8 HQs

82Contacts with mobile numbers

4Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

Cybersecurity engineers by metro

Metro	Companies
Cybersecurity engineers in Brussels	8
Cybersecurity engineers in Kontich	5
Cybersecurity engineers in Mechelen	4
Cybersecurity engineers in Antwerp	4
Cybersecurity engineers in Gent	3
Cybersecurity engineers in Antwerpen	3
Cybersecurity engineers in Bilzen	2

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 engineers”, 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 cybersecurity engineers are there based in Belgium?

There are 122 cybersecurity engineers 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 cybersecurity engineers?

Brussels leads with 8 headquartered companies, followed by Kontich (5) and Mechelen (4).

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 2,378 verified decision-maker contacts tracked across these 122 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.