Company lists · Data refreshed September 2026

Top 17 Multi-cloud security companies based in Belgium

RevenueBase identified 31 multi-cloud security companies headquartered in Belgium as of September 2026 and tracks 295 professional contacts across them, including 121 with verified work emails and 5 with mobile numbers. Brussels is the largest hub.

This list covers multi-cloud security 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 5, 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 5, 2026 86% judged on-target in blind review
31Companies
295Contacts tracked
121Verified emails
5Mobile numbers
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The 17 largest multi-cloud security companies based in Belgium

Ranked by team size
Top 17 of 31 multi-cloud security companies based in Belgium, ranked by team size, largest first. Data refreshed Sep 5, 2026. RevenueBase Smart Search rates how each company's information relates to multi-cloud security 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
1Indirect evidenceAartselaar, BelgiumHQ checked Sep 5, 202651-200102 contacts →

Indirect 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 5, 2026
2Partial evidenceLeuven, BelgiumHQ checked Sep 5, 202611-5028 contacts →

Partial evidence

“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…”

Source: RevenueBase Database · checked Sep 5, 2026
3Indirect evidenceSt-niklaas, BelgiumHQ checked Sep 5, 202611-5028 contacts →

Indirect evidence

“Sertalink is a premier cybersecurity expert in Belgium and Luxembourg, serving as your organization's vigilant guardian in the digital world.”

Source: RevenueBase Database · checked Sep 5, 2026
4Partial evidenceMechelen, BelgiumHQ checked Sep 5, 202651-20023 contacts →

Partial 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 5, 2026
5Partial evidenceKontich, BelgiumHQ checked Sep 5, 202611-5022 contacts →

Partial evidence

“As a strategic partner of Okta, SailPoint, Wiz, and Netskope, we deliver end-to-end cybersecurity across identity, cloud, and data.”

Source: RevenueBase Database · checked Sep 5, 2026
6Partial evidenceBelgiumHQ checked Sep 5, 202611-5020 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 5, 2026
7Partial evidenceKontich, BelgiumHQ checked Sep 5, 202611-5018 contacts →

Partial evidence

“ActWise is the partner of choice for securing your identities and protecting what matters most within your company.”

Source: RevenueBase Database · checked Sep 5, 2026
8Partial evidenceOttignies-louvain-la-neuve, BelgiumHQ checked Sep 5, 20261-1016 contacts →

Partial 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 5, 2026
9Indirect evidenceWingene, BelgiumHQ checked Sep 5, 20261-104 contacts →

Indirect evidence

“Een goed werkend netwerk is voor elk bedrijf van cruciaal belang.”

Source: RevenueBase Database · checked Sep 5, 2026
10Partial evidenceGentbrugge, BelgiumHQ checked Sep 5, 20261-104 contacts →

Partial evidence

“To protect global enterprises from emerging cyber security threats by delivering reliable and transparent services around the clock.”

Source: RevenueBase Database · checked Sep 5, 2026
11Indirect evidenceWaterloo, BelgiumHQ checked Sep 5, 20261-102 contacts →

Indirect evidence

“Ozoos stands as a trusted leader, delivering the most innovative and dependable cybersecurity technologies, backed by deep industry expertise and exceptional service, to empower…”

Source: RevenueBase Database · checked Sep 5, 2026
12Partial evidenceGhent, BelgiumHQ checked Sep 5, 20261-102 contacts →

Partial evidence

“Layer 9 Networks aims to become a paramount network security partner that reflects premium value based on unsurpassed service, superior quality and the highest standards of…”

Source: RevenueBase Database · checked Sep 5, 2026
13Partial evidenceNinove, BelgiumHQ checked Sep 5, 20261-101 contacts →

Partial evidence

“we secure your (cloud) business”

Source: RevenueBase Database · checked Sep 5, 2026
14Partial evidenceGenk, BelgiumHQ checked Sep 5, 20261-101 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 5, 2026
15Indirect evidenceAntwerpen, BelgiumHQ checked Sep 5, 20261-101 contacts →

Indirect evidence

“See decription BlueLine”

Source: RevenueBase Database · checked Sep 5, 2026
16Strong evidenceBrussels, BelgiumHQ checked Sep 5, 20261-101 contacts →

Strong evidence

“CSS BV is a Cloud Security Solutions Provider & Cyber Defense Services Company, providing specialized products & services focused on improving security of Benelux & EU Clients…”

Source: RevenueBase Database · checked Sep 5, 2026
17Partial evidenceLeuven, BelgiumHQ checked Sep 5, 20261-101 contacts →

Partial evidence

“Shift Left Security are true experts in application security.”

Source: RevenueBase Database · checked Sep 5, 2026

Showing 17 of 31 multi-cloud security companies based in Belgium

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Multi-cloud security companies based in Belgium at a glance

As of Sep 5, 2026
41.0%Verified-email coverage
1.7%Mobile-number coverage
9.5Average contacts per company
1-10Median size (employees)
9.7%Largest-city concentration · Brussels
Sep 5, 2026Page data refreshed

Companies by employee count

1-10
23
11-50
6
51-200
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 multi-cloud security 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 “multi-cloud security 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 multi-cloud security 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 multi-cloud security 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, 121 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 5, 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 multi-cloud security 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 multi-cloud security companies are there based in Belgium?

RevenueBase identified 31 multi-cloud security 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 multi-cloud security companies?

Brussels leads with 3 headquartered companies, followed by Kontich (2) and Leuven (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 121 verified decision-maker contacts tracked across these 31 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 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 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.