Company lists · Data refreshed November 2026

Top 25 Data security consultants based in Belgium

RevenueBase identified 152 company matches for data security consultants associated with Belgium as of November 2026 and tracks 590 professional contacts across them, including 197 with verified work emails. Brussels is the largest hub.

This list covers company matches for data security consultants 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 November 5, 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 Nov 5, 2026 How this list was built
152Companies
590Contacts tracked
197Verified emails
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The 25 largest data security consultants based in Belgium

Ranked by team size
Top 25 of 152 company matches for data security consultants based in Belgium, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchAntwerp, BelgiumHQ recorded Nov 5, 202651-20070 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 · Nov 5, 2026 · View company records in RevenueBase
2Exact matchLeuven, BelgiumHQ recorded Nov 5, 202611-5029 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 · Nov 5, 2026 · View company records in RevenueBase
3Exact matchSt-niklaas, BelgiumHQ recorded Nov 5, 202611-5028 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 · Nov 5, 2026 · View company records in RevenueBase
4Exact matchTurnhout, BelgiumHQ recorded Nov 5, 202611-5023 contacts →

Exact match

“RST consultancy guides your company to the desired level of security.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5Exact matchAntwerp, BelgiumHQ recorded Nov 5, 202611-5020 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 · Nov 5, 2026 · View company records in RevenueBase
6Exact matchOttignies-louvain-la-neuve, BelgiumHQ recorded Nov 5, 20261-1018 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7Exact matchAntwerp, BelgiumHQ recorded Nov 5, 202611-5012 contacts →

Exact match

“Hapbit is a Digital Operations Partner for organisations where reliability matters.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8Exact matchBrussels, BelgiumHQ recorded Nov 5, 202611-5011 contacts →

Exact match

“A&P offers consulting expertise in data protection, cybersecurity and IT & Digital governance”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9Exact matchZaventem, BelgiumHQ recorded Nov 5, 20261-109 contacts →

Exact match

“In a world where everything is connected and people are online all the time, data and resources are distributed and mobile.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10Exact matchAntwerp, BelgiumHQ recorded Nov 5, 20261-109 contacts →

Exact match

“Curios is a boutique cybersecurity and compliance consultancy in Antwerp, serving enterprises across Belgium and Europe.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11Exact matchAarschot, BelgiumHQ recorded Nov 5, 20261-108 contacts →

Exact match

“Cybersecurity is mensenwerk.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12Exact matchKontich, BelgiumHQ recorded Nov 5, 20261-108 contacts →

Exact match

“At Splynter we want to help companies understand their adversaries and how to combat them.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13Exact matchSint-niklaas, BelgiumHQ recorded Nov 5, 20261-108 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 · Nov 5, 2026 · View company records in RevenueBase
14Exact matchLouvain-la-neuve, BelgiumHQ recorded Nov 5, 20261-107 contacts →

Exact match

“Expertise spécialisée : Nous sommes à la pointe au niveau des nouvelles technologies informatiques qui sont en perpétuelle évolution.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact matchPaal-beringen, BelgiumHQ recorded Nov 5, 20261-106 contacts →

Exact match

“Highly skilled IT consultants with focus on network & security.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16Exact matchMechelen, BelgiumHQ recorded Nov 5, 20261-105 contacts →

Exact match

“Apogado is a vendor-neutral company focusing on the multidisciplinary field of information security, privacy, and eGovernment.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17Exact matchAarschot, BelgiumHQ recorded Nov 5, 20261-105 contacts →

Exact match

“De Integrale veiligheidsaanpak.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18Exact matchBelgiumHQ recorded Nov 5, 202611-505 contacts →

Exact match

“At Thales Cyber Solutions Belgium, we strive for security & privacy.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19Exact matchBrussels, BelgiumHQ recorded Nov 5, 20261-104 contacts →

Exact match

“Leveraging our profound expertise in IT, Cybersecurity and Risk Management, DigiSôter aims to be your preferred partner in aligning these capabilities with your business needs.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20Exact matchAartselaar, BelgiumHQ recorded Nov 5, 20261-104 contacts →

Exact match

“w3 Solutions is a security integrator located in Belgium.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21Exact matchBruxelles Bruxelles, BelgiumHQ recorded Nov 5, 202611-503 contacts →

Exact match

“INFOSEC4YOU est une Start-up spécialisée exclusivement dans la cybersécurité, nous protégeons les données, les entreprises et les citoyens contre la cybercriminalité et les…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22Exact matchLeuven, BelgiumHQ recorded Nov 5, 20261-103 contacts →

Exact match

“He who defends everything, defends nothing” - No IT Security team can monitor every application, network, system and information asset that a company has, no incident response…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23Exact matchBilzen, BelgiumHQ recorded Nov 5, 20261-103 contacts →

Exact match

“Qfirst helps companies to protect their data through both technical solutions and by applying cyber security processes and frameworks to their processes and their IT…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24Exact matchSint-niklaas, BelgiumHQ recorded Nov 5, 20261-103 contacts →

Exact match

“At Spectre Advisory, we go beyond the basics of information security.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25Exact matchNamur, BelgiumHQ recorded Nov 5, 20261-103 contacts →

Exact match

“Plus de 25 ans d’expertise pour sécuriser vos personnes, vos biens et votre réputation Depuis 1997, Christophe Samyn, fondateur de l'entreprise, est actif dans la gestion des…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase

Showing 25 of 152 data security consultants based in Belgium

See the full list, filter by size, metro and specialty, and access 197 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Data security consultants based in Belgium at a glance

As of Nov 5, 2026
33.4%Verified-email coverage
3.9Average contacts per company
1-10Median size (employees)
11.8%Largest-city concentration · Brussels
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
124
11-50
23
51-200
3
1,001-5,000
1

Email recency for this list is measured worldwide rather than for Belgium, so it is reported there. Company counts and contact totals on this page are exact for Belgium, over 152 companies.

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 “data security consultants” 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 197 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 November 5, 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 “data security consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many data security consultants are there based in Belgium?

RevenueBase identified 152 company matches for data security consultants associated with Belgium as of November 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?

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

Which city has the most data security consultants?

Brussels leads with 18 company records, followed by Antwerp (10) and Ghent (4).

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 197 professional contacts with verified work emails tracked across these 152 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 November 5, 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.