Company lists · Data refreshed September 2026

Top 25 Cybersecurity service providers based in Belgium

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

Compiled by the RevenueBase Data Team Data refreshed Sep 1, 2026 244 companies tracked

RevenueBase identified 244 company matches for cybersecurity service providers associated with Belgium as of September 2026 and tracks 6,945 professional contacts across them, including 2,547 with verified work emails and 269 with mobile numbers. Brussels is the largest hub.

This list covers company matches for cybersecurity service providers associated with Belgium, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 1, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 SmartSearch · Exact Recorded Sep 1, 2026 How this list was built

244Companies

6,945Contacts tracked

2,547Verified emails

269Mobile numbers

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The 25 largest cybersecurity service providers based in Belgium

Ranked by team size

Top 25 of 244 company matches for cybersecurity service providers based in Belgium, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 1, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Orange Cyberdefense	Exact match	Belgium	1,001-5,000	3,706 contacts →
	Exact match “Orange Cyberdefense is the expert cybersecurity business unit of the Orange Group.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
2	Approach Cyber	Exact match	Mechelen, Belgium	51-200	93 contacts →
	Exact match “Approach Cyber is a trusted cyber resilience partner supporting organizations across Belgium and Switzerland.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
3	Xalient Benelux	Exact match	Asse, Belgium	201-500	74 contacts →
	Exact match “Xalient ondersteunt toonaangevende organisaties bij het beschermen van hun meest waardevolle middelen: hun medewerkers, applicaties en data.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
4	Toreon	Exact match	Antwerp, Belgium	51-200	67 contacts →
	Exact match “At Toreon, we believe that security is vital for people to live and work confidently, with trust in our digital society.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
5	ACEN	Exact match	Kontich, Belgium	51-200	50 contacts →
	Exact match “Tailored, end-to-end solutions, suited to your cybersecurity needs.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
6	Secwise	Exact match	Leuven, Belgium	11-50	29 contacts →
	Exact match “As Belgium’s largest Microsoft Security team and #1 Microsoft Gold Security Partner of the BeLux, we provide you a solid end-to-end security strategy to protect your organization…” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
7	Sertalink	Exact match	Belsele, Belgium	11-50	27 contacts →
	Exact match “Sertalink is a premier cybersecurity expert in Belgium and Luxembourg, serving as your organization's vigilant guardian in the digital world.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
8	Jimber	Exact match	Oostkamp, Belgium	11-50	21 contacts →
	Exact match “Protecting companies of all sizes with user-friendly, innovative and affordable cybersecurity solutions.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
9	Upright Security	Exact match	Kontich, Belgium	11-50	21 contacts →
	Exact match “As a strategic partner of Okta, SailPoint, Wiz, and Netskope, we deliver end-to-end cybersecurity across identity, cloud, and data.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
10	Resilient Security	Exact match	Belgium	11-50	20 contacts →
	Exact match “Resilient Security is your trusted partner in cybersecurity, bridging the gap between big consultancy firms and system integrators.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
11	Thales Cyber Solutions Belgium	Exact match	Belgium	11-50	20 contacts →
	Exact match “At Thales Cyber Solutions Belgium, we strive for security & privacy.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
12	Actwise	Exact match	Kontich, Belgium	11-50	18 contacts →
	Exact match “ActWise is the partner of choice for securing your identities and protecting what matters most within your company.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
13	Redsystem	Exact match	Froyennes, Belgium	11-50	18 contacts →
	Exact match “Our mission is to advise and support you in minimizing the attack surface that could threaten your business.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
14	Pretera	Exact match	Brussels, Belgium	11-50	18 contacts →
	Exact match “Pretera is an offensive security company offering a wide range of services such as network and application penetration testing, social engineering, and red teaming.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
15	Shield VZW	Exact match	Belgium	11-50	17 contacts →
	Exact match “SHIELD aims to proactively respond to the digital cybersecurity challenges of today and tomorrow.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
16	Ataya And Partners - HTP Group	Exact match	Ixelles, Belgium	11-50	11 contacts →
	Exact match “A&P offers consulting expertise in data protection, cybersecurity and IT & Digital governance” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
17	Soterics, Your End-To-End Partner In OT Security	Exact match	Kontich, Belgium	11-50	10 contacts →
	Exact match “Soterics is more than a service provider.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
18	Curios	Exact match	Belgium	1-10	10 contacts →
	Exact match “Curiosity is a powerful force.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
19	Brand Solutions Europe	Exact match	Sint-Niklaas, Belgium	1-10	8 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
20	4net	Exact match	Mechelen, Belgium	11-50	7 contacts →
	Exact match “The philosophy underlying our approach is one of open-mindedness and flexibility, whereby we do not restrict ourselves to any particular vendor or product, but instead remain…” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
21	Cyberplan	Exact match	Oostkamp, Belgium	11-50	6 contacts →
	Exact match “Wij geloven dat cybersecurity niet zo complex hoeft te zijn.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
22	Defend-Ot	Exact match	Kampenhout, Belgium	1-10	6 contacts →
	Exact match “Protecting What Keeps the World Running At Defend-OT, we specialize in cybersecurity for Operational Technology (OT) and forming the bridge between IT, helping organizations…” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
23	Focal Point SRL	Exact match	Belgium	11-50	6 contacts →
	Exact match “At Focal Point, we specialise in cyber defence capability development, cyber resilience, and operational readiness, helping governments, SOCs, and critical infrastructure…” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
24	Atendo I Secure	Exact match	Paal-Beringen, Belgium	1-10	6 contacts →
	Exact match “Highly skilled IT consultants with focus on network & security.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
25	S.A.F.E	Exact match	Aarschot, Belgium	1-10	6 contacts →
	Exact match “We help you protect your people, data and operations by delivering integrated consultancy, expert training and engineered solutions that safeguard your organisation from modern…” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “cybersecurity service providers”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 244 cybersecurity service providers based in Belgium

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Cybersecurity service providers based in Belgium at a glance

As of Sep 1, 2026

36.7%Verified-email coverage

3.9%Mobile-number coverage

28.5Average contacts per company

1-10Median size (employees)

9.0%Largest-city concentration · Brussels

Sep 1, 2026Page data refreshed

Companies by employee count

1-10

186

11-50

51-200

201-500

1,001-5,000

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with Belgium whose business descriptions match “cybersecurity service providers” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 2,547 professional contacts with verified work emails across the full matched dataset. 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.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “cybersecurity service providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many cybersecurity service providers are there based in Belgium?

RevenueBase identified 244 company matches for cybersecurity service providers associated with Belgium as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Orange Cyberdefense tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most cybersecurity service providers?

Brussels leads with 22 company records, followed by Antwerp (17) and Kontich (10).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 2,547 professional contacts with verified work emails tracked across these 244 companies; direct dials are available where recorded.

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 SmartSearch, 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.