Company lists · Data verified August 2026

Top 25 Cybersecurity risk assessment firms based in Belgium

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 142 companies tracked

There are 142 cybersecurity risk assessment firms headquartered in Belgium (RevenueBase, August 2026). RevenueBase tracks 2,773 professional contacts across them, including 303 with verified work emails and 200 with mobile numbers. Brussels is the largest hub.

This list covers cybersecurity risk assessment firms 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.

142Companies

2,773Contacts tracked

303Verified emails

200Mobile numbers

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The 25 largest cybersecurity risk assessment firms based in Belgium

Ranked by team size

Top 25 of 142 cybersecurity risk assessment firms 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	Approach Cyber	Mechelen	51-200	93	48
2	Phished	Leuven	11-50	76	55
3	ACEN	Kontich	51-200	50	30
4	Secwise	Leuven	11-50	29	19
5	Sertalink	Belsele	11-50	27	13
6	Resilient Security	n/a	11-50	20	14
7	Thales Cyber Solutions Belgium	n/a	11-50	20	1
8	The Security Factory	Niel	11-50	19	12
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	Outpost24 Benelux Ex-Sweepatic	Leuven	11-50	8	4
15	Brand Solutions Europe	Sint-Niklaas	1-10	8	4
16	Fox&fish Cyberdefense	Aarschot	1-10	6	5
17	Cyberplan	Oostkamp	11-50	6	4
18	Defend-Ot	Kampenhout	1-10	6	4
19	Sectricity Outsmart Hackers	Belgium Netherlands	1-10	5	3
20	Guardis	Hannut	1-10	5	2
21	Cyberminute	n/a	1-10	5	2
22	Safepoint	Zoutleeuw	1-10	4	2
23	Icteryus	Gentbrugge	1-10	4	2
24	Infosec4you	Bruxelles Bruxelles	11-50	3	2
25	Cybervalue	Leuven	1-10	3	2

Showing 25 of 142 cybersecurity risk assessment firms based in Belgium

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Cybersecurity risk assessment firms based in Belgium at a glance

As of Aug 28, 2026

1-10Median size (employees)

BrusselsLargest hub · 13 HQs

200Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

107

11-50

51-200

201-500

1,001-5,000

Cybersecurity risk assessment firms by metro

Metro	Companies
Cybersecurity risk assessment firms in Brussels	13
Cybersecurity risk assessment firms in Antwerp	10
Cybersecurity risk assessment firms in Kontich	5
Cybersecurity risk assessment firms in Turnhout	4
Cybersecurity risk assessment firms in Leuven	4
Cybersecurity risk assessment firms in Antwerpen	4
Cybersecurity risk assessment firms in Mechelen	3

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 risk assessment firms”, 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 risk assessment firms are there based in Belgium?

There are 142 cybersecurity risk assessment firms headquartered in Belgium as of August 2026 (RevenueBase).

What is the largest company on this list?

Approach Cyber, headquartered in Mechelen, tops this list with the largest team on record.

Which city has the most cybersecurity risk assessment firms?

Brussels leads with 13 headquartered companies, followed by Antwerp (10) and Kontich (5).

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 303 verified decision-maker contacts tracked across these 142 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.