Company lists · Data refreshed September 2026

Top 25 Industrial control system security firms based in Belgium

Name: Industrial control system security firms based in Belgium
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 76 companies tracked

RevenueBase identified 76 industrial control system security firms headquartered in Belgium as of September 2026 and tracks 988 professional contacts across them, including 433 with verified work emails. Antwerp is the largest hub.

This list covers industrial control system security firms 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 28, 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 28, 2026 86% judged on-target in blind review

76Companies

988Contacts tracked

433Verified emails

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The 25 largest industrial control system security firms based in Belgium

Ranked by team size

Top 25 of 76 industrial control system security firms based in Belgium, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to industrial control system security firms: 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	Nviso Security	Partial evidence	Brussels, BelgiumHQ checked Sep 28, 2026	201-500	315 contacts →
	Partial evidence “NVISO is a cyber security services firm composed of outstanding security professionals - each has a specific field of expertise, ranging from security research and risk management…” Source: RevenueBase Database · checked Sep 28, 2026
2	Approach Cyber	Indirect evidence	Mont-saint-guibert, BelgiumHQ checked Sep 28, 2026	51-200	88 contacts →
	Indirect evidence “Approach Cyber is a trusted cyber resilience partner supporting organizations across Belgium and Switzerland.” Source: RevenueBase Database · checked Sep 28, 2026
3	Alertis NV	Indirect evidence	Roeselare, BelgiumHQ checked Sep 28, 2026	51-200	85 contacts →
	Indirect evidence “Alertis NV is een van de belangrijkste spelers in branddetectie in Vlaanderen met een heldenteam van 125 gepassioneerde professionals.” Source: RevenueBase Database · checked Sep 28, 2026
4	Iss-Security	Indirect evidence	Linkebeek, BelgiumHQ checked Sep 28, 2026	11-50	28 contacts →
	Indirect evidence “Since its foundation more than 30 Years ago, ISS has been providing technologies that combine innovation, quality and reliability.” Source: RevenueBase Database · checked Sep 28, 2026
5	DC Security	Partial evidence	Hulshout, BelgiumHQ checked Sep 28, 2026	1-10	21 contacts →
	Partial evidence “DC Security staat reeds meer dan 30 jaar garant voor een totaaloplossing inzake de beveiliging van particulieren en bedrijven.” Source: RevenueBase Database · checked Sep 28, 2026
6	Thales Cyber Solutions Belgium	Partial evidence	BelgiumHQ checked Sep 28, 2026	11-50	20 contacts →
	Partial evidence “At Thales Cyber Solutions Belgium, we strive for security & privacy.” Source: RevenueBase Database · checked Sep 28, 2026
7	Cresco Cybersecurity	Indirect evidence	Belgium France Luxembourg Netherlands, BelgiumHQ checked Sep 28, 2026	11-50	19 contacts →
	Indirect evidence “Cresco is your partner in cybersecurity.” Source: RevenueBase Database · checked Sep 28, 2026
8	Rombit Solutions	Partial evidence	Antwerp, BelgiumHQ checked Sep 28, 2026	11-50	15 contacts →
	Partial evidence “Your Safety & Security partner!” Source: RevenueBase Database · checked Sep 28, 2026
9	MVH Security	Partial evidence	Sint-niklaas, BelgiumHQ checked Sep 28, 2026	11-50	15 contacts →
	Partial evidence “MVH Security staat voor KWALITEIT – BETROUWBAARHEID – EERLIJKHEID - SOEPELHEID – SERVICE - SNELHEID Al deze troeven wensen wij dagelijks in te zetten voor zowel de particuliere…” Source: RevenueBase Database · checked Sep 28, 2026
10	Cobra-Technology	Indirect evidence	Erpe-mere, BelgiumHQ checked Sep 28, 2026	11-50	12 contacts →
	Indirect evidence “Uw beveiligingsfirma in Oost-Vlaanderen ACTIEF IN 5 DOMEINEN In 2007 richtte Hans Rottiers de beveiligingsfirma Cobra Technology op.” Source: RevenueBase Database · checked Sep 28, 2026
11	Easi Network	Indirect evidence	Vise, BelgiumHQ checked Sep 28, 2026	1-10	11 contacts →
	Indirect evidence “EASI Network : Société de services et de conseils active dans les réseaux informatiques, IoT et télécoms à destination des entreprises et des institutions.” Source: RevenueBase Database · checked Sep 28, 2026
12	Soterics, Your End-To-End Partner In OT Security	Indirect evidence	Kontich, BelgiumHQ checked Sep 28, 2026	11-50	10 contacts →
	Indirect evidence “Soterics is more than a service provider.” Source: RevenueBase Database · checked Sep 28, 2026
13	Curios	Indirect evidence	Antwerp, BelgiumHQ checked Sep 28, 2026	1-10	10 contacts →
	Indirect evidence “Curios is a boutique cybersecurity and compliance consultancy in Antwerp, serving enterprises across Belgium and Europe.” Source: RevenueBase Database · checked Sep 28, 2026
14	Spinae	Strong evidence	Ghent, BelgiumHQ checked Sep 28, 2026	11-50	9 contacts →
	Strong evidence “Spinae provides independent advice and support to companies regarding information security, industrial control system security (ICS security) and computer networks.” Source: RevenueBase Database · checked Sep 28, 2026
15	Korelec Bvba	Indirect evidence	Kuurne, BelgiumHQ checked Sep 28, 2026	11-50	7 contacts →
	Indirect evidence “Korelec bvba is als erkende en INCERT-gecertificeerde beveiligingsonderneming B-1531 gespecialiseerd in ontwerp, installatie en onderhoud van inbraakbeveiliging, camerabewaking…” Source: RevenueBase Database · checked Sep 28, 2026
16	Goozz Security BV	Indirect evidence	Brugge, BelgiumHQ checked Sep 28, 2026	1-10	7 contacts →
	Indirect evidence “Goozz is gespecialiseerd in de installatie en het onderhoud van inbraak- en branddetectiesystemen, camerabewaking en toegangscontrole.” Source: RevenueBase Database · checked Sep 28, 2026
17	Defend-Ot	Indirect evidence	Kampenhout, BelgiumHQ checked Sep 28, 2026	1-10	6 contacts →
	Indirect 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 28, 2026
18	Firesafe Solutions BBS Engineering BV	Partial evidence	Kuurne, BelgiumHQ checked Sep 28, 2026	11-50	6 contacts →
	Partial evidence “Firesafe Solutions is gespecialiseerd in brandveiligheid en geïntegreerde beveiligingsoplossingen voor bedrijven, industrie, overheden en kritieke infrastructuur.” Source: RevenueBase Database · checked Sep 28, 2026
19	Aspida	Partial evidence	Bruges, BelgiumHQ checked Sep 28, 2026	1-10	5 contacts →
	Partial evidence “At, we understand the unique challenges of securing Operational Technology environments.” Source: RevenueBase Database · checked Sep 28, 2026
20	Sterkens Security NV	Partial evidence	Beerse, BelgiumHQ checked Sep 28, 2026	11-50	5 contacts →
	Partial evidence “Sterkens Security biedt u meer dan 40 jaar ervaring in beveiliging.” Source: RevenueBase Database · checked Sep 28, 2026
21	Guardis	Strong evidence	Hannut, BelgiumHQ checked Sep 28, 2026	1-10	5 contacts →
	Strong evidence “Guardis helps organizations design, secure and operate their IT infrastructure, from cloud-native environments to industrial systems.” Source: RevenueBase Database · checked Sep 28, 2026
22	Soteria	Partial evidence	Ghent, BelgiumHQ checked Sep 28, 2026	1-10	4 contacts →
	Partial evidence “Experten in IT en OT Cyberveiligheid - Cybersecurity diensten op maat van uw organisatie- Security doorlichtingen, audits, pen-tests - NIS2, Cyfun en ISO27001 begeleidingen -…” Source: RevenueBase Database · checked Sep 28, 2026
23	Mvdh Security	Partial evidence	Destelbergen, BelgiumHQ checked Sep 28, 2026	1-10	4 contacts →
	Partial evidence “MVDH Security levert en installeert beveiliging in een spectrum van toepassingen en configuraties.” Source: RevenueBase Database · checked Sep 28, 2026
24	Infosec4you	Partial evidence	Bruxelles Bruxelles, BelgiumHQ checked Sep 28, 2026	11-50	3 contacts →
	Partial 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 28, 2026
25	Cybervalue	Strong evidence	Leuven, BelgiumHQ checked Sep 28, 2026	1-10	3 contacts →
	Strong evidence “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…” Source: RevenueBase Database · checked Sep 28, 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: industrial control system security firms. 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 industrial control system security firms.
Partial evidence: Its own public description names part of industrial control system security firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name industrial control system security firms. 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 25 of 76 industrial control system security firms based in Belgium

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Industrial control system security firms based in Belgium at a glance

As of Sep 28, 2026

43.8%Verified-email coverage

13.0Average contacts per company

1-10Median size (employees)

5.3%Largest-city concentration · Antwerp

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 76 companies.

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 industrial control system security firms, 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 “industrial control system security firms”. 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 industrial control system security firms), 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 industrial control system security firms, 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, 433 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 28, 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 industrial control system security firms, 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 industrial control system security firms are there based in Belgium?

RevenueBase identified 76 industrial control system security firms 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?

Nviso Security, headquartered in Belgium, tops this list with the largest team on record.

Which city has the most industrial control system security firms?

Antwerp leads with 4 headquartered companies, followed by Brussels (3) 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 433 verified decision-maker contacts tracked across these 76 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 28, 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.