Company lists · Data refreshed September 2026

Top 24 Cybersecurity software companies based in Belgium

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

Compiled by the RevenueBase Data Team Data refreshed Sep 1, 2026 59 companies tracked

RevenueBase identified 59 cybersecurity software companies headquartered in Belgium as of September 2026 and tracks 6,175 professional contacts across them, including 2,226 with verified work emails and 247 with mobile numbers. Sint-Niklaas is the largest hub.

This list covers cybersecurity software companies headquartered in Belgium, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 1, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase Smart Search rating on every row Refreshed Sep 1, 2026 86% judged on-target in blind review

59Companies

6,175Contacts tracked

2,226Verified emails

247Mobile numbers

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The 24 largest cybersecurity software companies based in Belgium

Ranked by team size

Top 24 of 59 cybersecurity software companies based in Belgium, ranked by team size, largest first. Data refreshed Sep 1, 2026. RevenueBase Smart Search rates how each company's information relates to cybersecurity software companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Orange Cyberdefense	Partial evidence	Belgium	1,001-5,000	3,706 contacts →
	Partial evidence “Orange Cyberdefense is the expert cybersecurity business unit of the Orange Group.” Source: RevenueBase Database · checked Sep 1, 2026
2	Approach Cyber	Indirect evidence	Mechelen, Belgium	51-200	93 contacts →
	Indirect evidence “Approach Cyber is a trusted cyber resilience partner supporting organizations across Belgium and Switzerland.” Source: RevenueBase Database · checked Sep 1, 2026
3	Wibu-Systems	Strong evidence	Zaventem, Belgium	51-200	87 contacts →
	Strong evidence “Industrie40 and #IoT w/o #cybersecurity?#Software-powered business w/o a #licensing strategy?#CodeMeter drives a secure & prosperous smart future - we're hiring…” Source: RevenueBase Database · checked Sep 1, 2026
4	Osavul	Indirect evidence	Belgium	11-50	27 contacts →
	Indirect evidence “Osavul is a technology company that offers OSINT-powered AI solutions for situational awareness to empower governments, security organizations, and enterprises to effectively…” Source: RevenueBase Database · checked Sep 1, 2026
5	Jimber	Partial evidence	Oostkamp, Belgium	11-50	21 contacts →
	Partial evidence “Protecting companies of all sizes with user-friendly, innovative and affordable cybersecurity solutions.” Source: RevenueBase Database · checked Sep 1, 2026
6	Thales Cyber Solutions Belgium	Indirect evidence	Belgium	11-50	20 contacts →
	Indirect evidence “At Thales Cyber Solutions Belgium, we strive for security & privacy.” Source: RevenueBase Database · checked Sep 1, 2026
7	Actwise	Indirect evidence	Kontich, Belgium	11-50	18 contacts →
	Indirect evidence “ActWise is the partner of choice for securing your identities and protecting what matters most within your company.” Source: RevenueBase Database · checked Sep 1, 2026
8	MCG	Indirect evidence	Ottignies-Louvain-La-Neuve, Belgium	1-10	16 contacts →
	Indirect evidence “Notre collaboration vous permet de vous défendre face aux diverses cyberattaques complexes et structurées pour protéger vos actifs, hébergés en interne ou dans le Cloud, et ainsi…” Source: RevenueBase Database · checked Sep 1, 2026
9	Curios	Indirect evidence	Belgium	1-10	10 contacts →
	Indirect evidence “Curiosity is a powerful force.” Source: RevenueBase Database · checked Sep 1, 2026
10	Brand Solutions Europe	Partial evidence	Sint-Niklaas, Belgium	1-10	8 contacts →
	Partial evidence “Cybersecurity \| Algemene IT-diensten \| Digitale media Het digitale tijdperk heeft een enorme stroomversnelling gekend afgelopen jaren, dit is een trend die alleen nog maar zal…” Source: RevenueBase Database · checked Sep 1, 2026
11	Cyberplan	Partial evidence	Oostkamp, Belgium	11-50	6 contacts →
	Partial evidence “Wij geloven dat cybersecurity niet zo complex hoeft te zijn.” Source: RevenueBase Database · checked Sep 1, 2026
12	Resilix	Indirect evidence	Belgium	1-10	5 contacts →
	Indirect evidence “At Resilix, we focus on providing targeted security solutions designed from a pragmatic approach to best protect your organisation from today's complex threats.” Source: RevenueBase Database · checked Sep 1, 2026
13	Icteryus	Indirect evidence	Gentbrugge, Belgium	1-10	4 contacts →
	Indirect evidence “To protect global enterprises from emerging cyber security threats by delivering reliable and transparent services around the clock.” Source: RevenueBase Database · checked Sep 1, 2026
14	Infosec4you	Indirect evidence	Bruxelles Bruxelles, Belgium	11-50	3 contacts →
	Indirect evidence “INFOSEC4YOU est une Start-up spécialisée exclusivement dans la cybersécurité, nous protégeons les données, les entreprises et les citoyens contre la cybercriminalité et les…” Source: RevenueBase Database · checked Sep 1, 2026
15	OZOOS	Partial evidence	Waterloo, Belgium	1-10	3 contacts →
	Partial evidence “Ozoos stands as a trusted leader, delivering the most innovative and dependable cybersecurity technologies, backed by deep industry expertise and exceptional service, to empower…” Source: RevenueBase Database · checked Sep 1, 2026
16	Threatproof	Partial evidence	Belgium	11-50	2 contacts →
	Partial evidence “At Threatproof, our mission is to redefine cybersecurity for businesses of all sizes.” Source: RevenueBase Database · checked Sep 1, 2026
17	Kemsec	Indirect evidence	Vilvoorde, Belgium	1-10	2 contacts →
	Indirect evidence “KemSec provides a comprehensive portfolio of integrated cyber security solutions providing unified enterprise wide protection for operators of industrial environments.” Source: RevenueBase Database · checked Sep 1, 2026
18	Zerobit BV	Indirect evidence	Lubbeek, Belgium	1-10	2 contacts →
	Indirect evidence “Mission: ZeroBit wants to offer an 'end-to-end' security for all types of companies.” Source: RevenueBase Database · checked Sep 1, 2026
19	Layer 9 Networks	Indirect evidence	Sint-Amandsberg, Belgium	1-10	2 contacts →
	Indirect evidence “Layer 9 Networks aims to become a paramount network security partner that reflects premium value based on unsurpassed service, superior quality and the highest standards of…” Source: RevenueBase Database · checked Sep 1, 2026
20	Flowz-It Cyberprotection For Smes	Partial evidence	Belgium	1-10	1 contacts →
	Partial evidence “FlowZ-IT is your cybersecurity company assisting companies and public organizations in the Benelux.” Source: RevenueBase Database · checked Sep 1, 2026
21	Cyberfox	Partial evidence	Antwerp, Belgium	1-10	1 contacts →
	Partial evidence “Cybersecurity services for SMEs” Source: RevenueBase Database · checked Sep 1, 2026
22	Cybertronica	Indirect evidence	Kontich, Belgium	1-10	1 contacts →
	Indirect evidence “CyberTronica helps organizations secure their infrastructure.” Source: RevenueBase Database · checked Sep 1, 2026
23	Justguard	Partial evidence	Geel, Belgium	1-10	1 contacts →
	Partial evidence “Welcome to JustGuard: Empowering Cybersecurity for a Safer World!” Source: RevenueBase Database · checked Sep 1, 2026
24	Cyberxpert	Indirect evidence	Antwerpen, Belgium	1-10	1 contacts →
	Indirect evidence “For over 10 years, we have been helping our customers in all sectors to meet their needs.” Source: RevenueBase Database · checked Sep 1, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: cybersecurity software companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names cybersecurity software companies.
Partial evidence: Its own public description names part of cybersecurity software companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name cybersecurity software companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 24 of 59 cybersecurity software companies based in Belgium

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Cybersecurity software companies based in Belgium at a glance

As of Sep 1, 2026

36.0%Verified-email coverage

4.0%Mobile-number coverage

104.7Average contacts per company

1-10Median size (employees)

3.4%Largest-city concentration · Sint-Niklaas

Sep 1, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among cybersecurity software companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Belgium whose own description of what they do matches “cybersecurity software companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names cybersecurity software companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among cybersecurity software companies, and records with no verified work email. Companies headquartered outside Belgium are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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: Every listed company carries at least one verified work email, 2,226 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 1, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names cybersecurity software companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many cybersecurity software companies are there based in Belgium?

RevenueBase identified 59 cybersecurity software companies headquartered in Belgium as of September 2026, matched on each company's own description of what it does rather than its industry code.

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 software companies?

Sint-Niklaas leads with 2 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 2,226 verified decision-maker contacts tracked across these 59 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 1, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 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 with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.