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, how directly it supports the match, 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 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 HQ checked on every row Match evidence 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. Evidence rates how directly each company's own description names multi-cloud security companies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1
SecutecIndirect evidence
Aartselaar, BelgiumHQ checked Sep 5, 202651-200102

“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: company website · checked Sep 5, 2026
2
SecwisePartial evidence
Leuven, BelgiumHQ checked Sep 5, 202611-5028

“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: company website · checked Sep 5, 2026
3
SertalinkIndirect evidence
St-niklaas, BelgiumHQ checked Sep 5, 202611-5028

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

Source: company website · checked Sep 5, 2026
4
AXS GuardPartial evidence
Mechelen, BelgiumHQ checked Sep 5, 202651-20023

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

Source: company website · checked Sep 5, 2026
5
Upright SecurityPartial evidence
Kontich, BelgiumHQ checked Sep 5, 202611-5022

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

Source: company website · checked Sep 5, 2026
6BelgiumHQ checked Sep 5, 202611-5020

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

Source: company website · checked Sep 5, 2026
7
Actwise, An Acen CompanyPartial evidence
Kontich, BelgiumHQ checked Sep 5, 202611-5018

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

Source: company website · checked Sep 5, 2026
8
MCGPartial evidence
Ottignies-louvain-la-neuve, BelgiumHQ checked Sep 5, 20261-1016

“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: company website · checked Sep 5, 2026
9
Apex NetworksIndirect evidence
Wingene, BelgiumHQ checked Sep 5, 20261-104

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

Source: company website · checked Sep 5, 2026
10
IcteryusPartial evidence
Gentbrugge, BelgiumHQ checked Sep 5, 20261-104

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

Source: company website · checked Sep 5, 2026
11
OZOOSIndirect evidence
Waterloo, BelgiumHQ checked Sep 5, 20261-102

“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: company website · checked Sep 5, 2026
12
Layer 9 NetworksPartial evidence
Ghent, BelgiumHQ checked Sep 5, 20261-102

“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: company website · checked Sep 5, 2026
13
DfenditPartial evidence
Ninove, BelgiumHQ checked Sep 5, 20261-101

“we secure your (cloud) business”

Source: company website · checked Sep 5, 2026
14
SecurenzaPartial evidence
Genk, BelgiumHQ checked Sep 5, 20261-101

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

Source: company website · checked Sep 5, 2026
15
Metastore NetherlandsIndirect evidence
Antwerpen, BelgiumHQ checked Sep 5, 20261-101

“See decription BlueLine”

Source: company website · checked Sep 5, 2026
16Brussels, BelgiumHQ checked Sep 5, 20261-101

“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: company website · checked Sep 5, 2026
17
Shift Left SecurityPartial evidence
Leuven, BelgiumHQ checked Sep 5, 20261-101

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

Source: company website · 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
1-10Median size (employees)
BrusselsLargest hub · 3 HQs
5Contacts with mobile numbers
Sep 5, 2026Data refreshed

Companies by employee count

1-10
23
11-50
6
51-200
2

Verified emails by last verification

0–30
114
31–60
7
61–90
0
90–180
0
180+
0

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 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 “multi-cloud security 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 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 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, 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

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 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.