Company lists · Data refreshed September 2026
Top 25 Security consulting companies based in Belgium
RevenueBase identified 155 security consulting companies headquartered in Belgium as of September 2026 and tracks 2,743 professional contacts across them, including 981 with verified work emails and 37 with mobile numbers. Brussels is the largest hub.
This list covers security consulting 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, how directly it supports the match, 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 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.
The 25 largest security consulting companies based in Belgium
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,419 | ||||
“See a different world.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 2 | 315 | ||||
“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: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 3 | 96 | ||||
“Voor ieder beveiligingsrisico de gepaste oplossing!” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 4 | 87 | ||||
“Spotit is the trusted advisor for its customers and collaborates with them on innovative security & networking architectures that bring a big strategic advantage and insight.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 5 | 85 | ||||
“Alertis NV is een van de belangrijkste spelers in branddetectie in Vlaanderen met een heldenteam van 125 gepassioneerde professionals.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 6 | 70 | ||||
“Varel Security is een vergunde beveiligingsfirma met vestigingen in Hasselt, Gent, Antwerpen, Buggenhout, Doornik en Luik.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 7 | 67 | ||||
“At Toreon, we believe that security is vital for people to live and work confidently, with trust in our digital society.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 8 | 51 | ||||
“Het beveiligingsvraagstuk van uw gebouw en mensen is niet louter een technisch verhaal.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 9 | 32 | ||||
“The security experts for best-run companies with SAP systems.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 10 | 25 | ||||
“Mastering your own security empowers you to create a safer world for everyone.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 11 | 21 | ||||
“DC Security staat reeds meer dan 30 jaar garant voor een totaaloplossing inzake de beveiliging van particulieren en bedrijven.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 12 | 19 | ||||
“Inbraak- en brandbeveiliging / camerabewaking / buitenbeveiliging / toegangscontrole / bewaking: UW beveiliging op maat!” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 13 | 19 | ||||
“Cresco is your partner in cybersecurity.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 14 | 18 | ||||
“Resilient Security is your trusted partner in cybersecurity, bridging the gap between big consultancy firms and system integrators.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 15 | 17 | ||||
“RST consultancy guides your company to the desired level of security.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 16 | 12 | ||||
“Uw beveiligingsfirma in Oost-Vlaanderen ACTIEF IN 5 DOMEINEN In 2007 richtte Hans Rottiers de beveiligingsfirma Cobra Technology op.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 17 | 12 | ||||
“Operating in 90+ countries • Intelligence & Investigations provided by 100+ field agents • Offices in 8 countries • Client property protected: 1mln square miles Centry Global…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 18 | 11 | ||||
“AEW Security focuses on customised, comprehensive security solutions for professional environments.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 19 | 8 | ||||
“IBS existe depuis plus de 35 ans.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 20 | 7 | ||||
“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…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 21 | 6 | ||||
“Expertise spécialisée : Nous sommes à la pointe au niveau des nouvelles technologies informatiques qui sont en perpétuelle évolution.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 22 | 6 | ||||
“Qualitative Cyber Security and Advice.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 23 | 6 | ||||
“Highly skilled IT consultants with focus on network & security.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 24 | 6 | ||||
“We help you protect your people, data and operations by delivering integrated consultancy, expert training and engineered solutions that safeguard your organisation from modern…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 25 | 5 | ||||
“Sterkens Security biedt u meer dan 40 jaar ervaring in beveiliging.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 155 security consulting companies based in Belgium
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Security consulting companies based in Belgium at a glance
As of Sep 6, 2026Companies by employee count
Verified emails by last verification
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 security consulting companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in Belgium whose own description of what they do matches “security consulting companies”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among security consulting 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 an evidence 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, 981 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
How many security consulting companies are there based in Belgium?
RevenueBase identified 155 security consulting 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?
Securitas Belgium, headquartered in Belgium, tops this list with the largest team on record.
Which city has the most security consulting companies?
Brussels leads with 16 headquartered companies, followed by Antwerp (5) and Hasselt (5).
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 981 verified decision-maker contacts tracked across these 155 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 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.
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