Company lists · Data refreshed September 2026

Top 25 Utility cybersecurity companies based in Belgium

RevenueBase identified 59 utility cybersecurity companies headquartered in Belgium as of September 2026 and tracks 383 professional contacts across them, including 138 with verified work emails and 7 with mobile numbers. Kontich is the largest hub.

This list covers utility cybersecurity 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 6, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 6, 2026 86% judged on-target in blind review
59Companies
383Contacts tracked
138Verified emails
7Mobile numbers
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The 25 largest utility cybersecurity companies based in Belgium

Ranked by team size
Top 25 of 59 utility cybersecurity companies based in Belgium, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to utility cybersecurity 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceAartselaar, BelgiumHQ checked Sep 6, 202651-200102 contacts →

Partial evidence

“Cybersecurity company Secutec was founded in 2005 and is considered an authority in the field of cybersecurity, threat intelligence, and incident response services tailored to…”

Source: RevenueBase Database · checked Sep 6, 2026
2Indirect evidenceMechelen, BelgiumHQ checked Sep 6, 202651-20023 contacts →

Indirect evidence

“AXS Guard (now part of Approach Cyber) provides sovereign, integrated cyber resilience solutions through its managed security platform-built and operated in Belgium.”

Source: RevenueBase Database · checked Sep 6, 2026
3Partial evidenceOostkamp, BelgiumHQ checked Sep 6, 202611-5022 contacts →

Partial evidence

“Protecting companies of all sizes with user-friendly, innovative and affordable cybersecurity solutions.”

Source: RevenueBase Database · checked Sep 6, 2026
4Indirect evidenceBelgiumHQ checked Sep 6, 202611-5020 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 6, 2026
5Partial evidenceBelgium France Luxembourg Netherlands, BelgiumHQ checked Sep 6, 202611-5019 contacts →

Partial evidence

“Cresco is your partner in cybersecurity.”

Source: RevenueBase Database · checked Sep 6, 2026
6Indirect evidenceKontich, BelgiumHQ checked Sep 6, 202611-5018 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 6, 2026
7Indirect evidenceOttignies-louvain-la-neuve, BelgiumHQ checked Sep 6, 20261-1016 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 6, 2026
8Indirect evidenceKontich, BelgiumHQ checked Sep 6, 202611-5010 contacts →

Indirect evidence

“Soterics is more than a service provider.”

Source: RevenueBase Database · checked Sep 6, 2026
9Partial evidenceAntwerp, BelgiumHQ checked Sep 6, 20261-1010 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 6, 2026
10Partial evidenceSint-niklaas, BelgiumHQ checked Sep 6, 20261-108 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 6, 2026
11Partial evidenceKampenhout, BelgiumHQ checked Sep 6, 20261-106 contacts →

Partial evidence

“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…”

Source: RevenueBase Database · checked Sep 6, 2026
12Partial evidenceOostkamp, BelgiumHQ checked Sep 6, 202611-506 contacts →

Partial evidence

“Wij geloven dat cybersecurity niet zo complex hoeft te zijn.”

Source: RevenueBase Database · checked Sep 6, 2026
13Indirect evidenceBruges, BelgiumHQ checked Sep 6, 20261-105 contacts →

Indirect evidence

“At, we understand the unique challenges of securing Operational Technology environments.”

Source: RevenueBase Database · checked Sep 6, 2026
14Indirect evidenceHasselt, BelgiumHQ checked Sep 6, 20261-105 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 6, 2026
15Indirect evidenceHannut, BelgiumHQ checked Sep 6, 20261-105 contacts →

Indirect evidence

“Guardis helps organizations design, secure and operate their IT infrastructure, from cloud-native environments to industrial systems.”

Source: RevenueBase Database · checked Sep 6, 2026
16Indirect evidenceMerelbeke, BelgiumHQ checked Sep 6, 202611-504 contacts →

Indirect evidence

“Your digital life belongs to you.”

Source: RevenueBase Database · checked Sep 6, 2026
17Indirect evidenceGentbrugge, BelgiumHQ checked Sep 6, 20261-104 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 6, 2026
18Indirect evidenceBruxelles Bruxelles, BelgiumHQ checked Sep 6, 202611-503 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 6, 2026
19Indirect evidenceLeuvensesteenweg, BelgiumHQ checked Sep 6, 20261-102 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 6, 2026
20Indirect evidenceNamur, BelgiumHQ checked Sep 6, 20261-102 contacts →

Indirect evidence

“Chez ODSC, nous accompagnons les entreprises dans la sécurisation de leurs actifs numériques à travers une approche complète et humaine de la cybersécurité.”

Source: RevenueBase Database · checked Sep 6, 2026
21Indirect evidenceLubbeek, BelgiumHQ checked Sep 6, 20261-102 contacts →

Indirect evidence

“Mission: ZeroBit wants to offer an 'end-to-end' security for all types of companies.”

Source: RevenueBase Database · checked Sep 6, 2026
22Indirect evidenceKontich, BelgiumHQ checked Sep 6, 20261-101 contacts →

Indirect evidence

“CyberTronica helps organizations secure their infrastructure.”

Source: RevenueBase Database · checked Sep 6, 2026
23Partial evidenceWaremme, BelgiumHQ checked Sep 6, 20261-101 contacts →

Partial evidence

“Cybersecurity specialization* At CyberInIT, we specialize in a full range of cybersecurity services, from in-depth security audits to the implementation of robust defense…”

Source: RevenueBase Database · checked Sep 6, 2026
24Partial evidencePlancenoit, BelgiumHQ checked Sep 6, 20261-101 contacts →

Partial evidence

“FlowZ-IT is your cybersecurity company assisting companies and public organizations in the Benelux.”

Source: RevenueBase Database · checked Sep 6, 2026
25Indirect evidenceGenk, BelgiumHQ checked Sep 6, 20261-101 contacts →

Indirect evidence

“We aim to improve the overall security posture and security practices of our clients.”

Source: RevenueBase Database · checked Sep 6, 2026

Showing 25 of 59 utility cybersecurity companies based in Belgium

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Utility cybersecurity companies based in Belgium at a glance

As of Sep 6, 2026
36.0%Verified-email coverage
1.8%Mobile-number coverage
6.5Average contacts per company
1-10Median size (employees)
5.1%Largest-city concentration · Kontich
Sep 6, 2026Page data refreshed

Companies by employee count

1-10
37
11-50
17
51-200
3
201-500
2

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

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 utility cybersecurity 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 “utility cybersecurity 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 utility cybersecurity 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 utility cybersecurity 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, 138 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 6, 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 utility cybersecurity 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 utility cybersecurity companies are there based in Belgium?

RevenueBase identified 59 utility cybersecurity 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?

Secutec, headquartered in Aartselaar, tops this list with the largest team on record.

Which city has the most utility cybersecurity companies?

Kontich leads with 3 headquartered companies, followed by Antwerp (2) and Brussels (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 138 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 6, 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.