Company lists · Data refreshed November 2026

Top 25 Managed security companies based in Belgium

RevenueBase identified 126 company matches for managed security companies associated with Belgium as of November 2026 and tracks 2,601 professional contacts across them, including 675 with verified work emails. Brussels is the largest hub.

This list covers company matches for managed security companies 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
126Companies
2,601Contacts tracked
675Verified emails
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The 25 largest managed security companies based in Belgium

Ranked by team size
Top 25 of 126 company matches for managed security companies 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 matchDiegem, BelgiumHQ recorded Nov 5, 20265,001-10,0001,449 contacts →

Exact match

“See a different world.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2Exact matchHasselt, BelgiumHQ recorded Nov 5, 202611-50100 contacts →

Exact match

“Voor ieder beveiligingsrisico de gepaste oplossing!”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3Exact matchMont-saint-guibert, BelgiumHQ recorded Nov 5, 202651-20095 contacts →

Exact match

“Approach Cyber is a trusted cyber resilience partner supporting organizations across Belgium and Switzerland.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4Exact matchHasselt, BelgiumHQ recorded Nov 5, 202651-20087 contacts →

Exact match

“Varel Security is een vergunde beveiligingsfirma met vestigingen in Hasselt, Gent, Antwerpen, Buggenhout, Doornik en Luik.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5Exact matchArlon, BelgiumHQ recorded Nov 5, 2026201-50059 contacts →

Exact match

“Entreprise De Gardiennage et de Surveillance”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6Exact matchWavre, BelgiumHQ recorded Nov 5, 202651-20043 contacts →

Exact match

“Bienvenue chez Optimalis Security S.A.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7Exact matchDiegem, BelgiumHQ recorded Nov 5, 202611-5034 contacts →

Exact match

“GDW Security is ready to serve everyone who values safety.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8Exact matchMerksem, BelgiumHQ recorded Nov 5, 202611-5034 contacts →

Exact match

“Voldoen aan elke verwachting van de klant: dát is de slogan van beveiligingsbedrijf Watchguard Security, al vijftien jaar lang uw specialist en partner in elektronische…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9Exact 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
10Exact 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
11Exact matchHulshout, BelgiumHQ recorded Nov 5, 20261-1023 contacts →

Exact match

“DC Security staat reeds meer dan 30 jaar garant voor een totaaloplossing inzake de beveiliging van particulieren en bedrijven.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12Exact matchIzegem, BelgiumHQ recorded Nov 5, 202651-20021 contacts →

Exact match

“VESTAGuard Security is een jong & dynamisch bewakingsbedrijf dat begrippen als veiligheidsgarantie, bescherming, zekerheid en vertrouwen hoog in het vaandel draagt.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13Exact 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
14Exact matchSint-niklaas, BelgiumHQ recorded Nov 5, 202611-5018 contacts →

Exact match

“MVH Security staat voor KWALITEIT – BETROUWBAARHEID – EERLIJKHEID - SOEPELHEID – SERVICE - SNELHEID Al deze troeven wensen wij dagelijks in te zetten voor zowel de particuliere…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact 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
16Exact matchBrugge, BelgiumHQ recorded Nov 5, 202611-5018 contacts →

Exact match

“Welkom bij Sentery Security, uw erkende partner in bewaking.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17Exact matchForest, BelgiumHQ recorded Nov 5, 202611-5015 contacts →

Exact match

“Votre sécurité, notre métier!”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18Exact matchMunkzwalm, BelgiumHQ recorded Nov 5, 202651-20014 contacts →

Exact match

“Gecertificeerd R&T Security is een professionele bewakingsonderneming, erkend door het Belgische Ministerie van Binnenlandse Zaken onder Vergunningsnr: 16.1136.12.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19Exact matchKontich, BelgiumHQ recorded Nov 5, 202611-5012 contacts →

Exact match

“Soterics is more than a service provider.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20Exact matchKontich, BelgiumHQ recorded Nov 5, 202611-5011 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 · Nov 5, 2026 · View company records in RevenueBase
21Exact matchEtterbeek, BelgiumHQ recorded Nov 5, 202611-5011 contacts →

Exact match

“VigiRisk is a security company who's help you to build sustainable security strategies.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22Exact matchZemst, BelgiumHQ recorded Nov 5, 202651-20010 contacts →

Exact match

“United Security Services is a young and dynamic security company that is able to adapt to every situation.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23Exact matchBrugge, BelgiumHQ recorded Nov 5, 20261-109 contacts →

Exact match

“Goozz is gespecialiseerd in de installatie en het onderhoud van inbraak- en branddetectiesystemen, camerabewaking en toegangscontrole.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24Exact 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
25Exact 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

Showing 25 of 126 managed security companies based in Belgium

See the full list, filter by size, metro and specialty, and access 675 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Managed security companies based in Belgium at a glance

As of Nov 5, 2026
26.0%Verified-email coverage
20.6Average contacts per company
1-10Median size (employees)
4.8%Largest-city concentration · Brussels
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
72
11-50
36
51-200
14
201-500
3
5,001-10,000
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 126 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 “managed security companies” 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 675 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 “managed security companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many managed security companies are there based in Belgium?

RevenueBase identified 126 company matches for managed security companies 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?

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

Which city has the most managed security companies?

Brussels leads with 6 company records, followed by Antwerp (4) and Kontich (3).

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 675 professional contacts with verified work emails tracked across these 126 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.