Company lists · Data refreshed September 2026
Top 24 Security testing companies based in Belgium
RevenueBase identified 61 company matches for security testing companies associated with Belgium as of September 2026 and tracks 1,329 professional contacts across them, including 695 with verified work emails and 90 with mobile numbers. Brussels is the largest hub.
This list covers company matches for security testing companies associated with Belgium, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. 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 24 largest security testing companies based in Belgium
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 315 contacts → | ||||
Exact match “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…” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 2 | 163 contacts → | ||||
Exact match “Guardsquare offers the most complete approach to mobile application security on the market.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 3 | 154 contacts → | ||||
Exact match “From vulnerability management to penetration testing, secure everything you build, host, and run with Aikido.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 4 | 21 contacts → | ||||
Exact match “The main goal of the Security Factory is to test/assess the current security maturity level of clients.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 5 | 20 contacts → | ||||
Exact match “At Thales Cyber Solutions Belgium, we strive for security & privacy.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 6 | 19 contacts → | ||||
Exact match “Cresco is your partner in cybersecurity.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 7 | 18 contacts → | ||||
Exact match “Our mission is to advise and support you in minimizing the attack surface that could threaten your business.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 8 | 10 contacts → | ||||
Exact match “Curios is a boutique cybersecurity and compliance consultancy in Antwerp, serving enterprises across Belgium and Europe.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 9 | 8 contacts → | ||||
Exact match “At Splynter we want to help companies understand their adversaries and how to combat them.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 10 | 6 contacts → | ||||
Exact match “Wij geloven dat cybersecurity niet zo complex hoeft te zijn.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 11 | 5 contacts → | ||||
Exact match “Most companies discover a security gap only after a breach.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 12 | 5 contacts → | ||||
Exact match “Guardis helps organizations design, secure and operate their IT infrastructure, from cloud-native environments to industrial systems.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 13 | 3 contacts → | ||||
Exact match “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…” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 14 | 2 contacts → | ||||
Exact match “In today’s world, Information Technology is clearly a part of how companies manage and do their business.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 15 | 2 contacts → | ||||
Exact match “Chez ODSC, nous accompagnons les entreprises dans la sécurisation de leurs actifs numériques à travers une approche complète et humaine de la cybersécurité.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 16 | 1 contacts → | ||||
Exact match “Secureness staat garant voor het beveiligen van uw omgeving.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 17 | 1 contacts → | ||||
Exact match “Cybersecurity specialization* At CyberInIT, we specialize in a full range of cybersecurity services, from in-depth security audits to the implementation of robust defense…” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 18 | 1 contacts → | ||||
Exact match “Testing software is absolutely essential to ensure that your product is top-notch and performs exactly as it should.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 19 | 1 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 20 | 1 contacts → | ||||
Exact match “Make an immediate tangible impact on the cybersecurity posture of your organization by leveraging the expertise of real hackers!” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 21 | 1 contacts → | ||||
Exact match “Specialized IT company focused on Offensive Security, Penetration Testing and IT Security Strategic consulting.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 22 | 1 contacts → | ||||
Exact match “Our passion for security runs deep and wide.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 23 | 1 contacts → | ||||
Exact match “For over 10 years, we have been helping our customers in all sectors to meet their needs.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 24 | 1 contacts → | ||||
Exact match “We aim to improve the overall security posture and security practices of our clients.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “security testing companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 24 of 61 security testing companies based in Belgium
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Security testing companies based in Belgium at a glance
As of Sep 6, 2026Companies by employee count
Freshness & accuracy
How recently the business emails on this list were verified
Email last verified
How this list was built
The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.
- 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
- Company records associated with Belgium whose business descriptions match “security testing companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
- RevenueBase SmartSearch
- Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
- Public preview
- The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
- Match quality
- RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
- 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 displayed company carries at least one verified work email. RevenueBase tracks 695 professional contacts with verified work emails across the full matched dataset. 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.
- Record context
- Company records and descriptions can change. Check the company's website for its current services and locations.
Frequently asked
What is RevenueBase SmartSearch?
RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “security testing companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many security testing companies are there based in Belgium?
RevenueBase identified 61 company matches for security testing companies associated with Belgium as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.
What is the largest company on this list?
Nviso Security tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most security testing companies?
Brussels leads with 7 company records, followed by Antwerp (4) and Genk (3).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 695 professional contacts with verified work emails tracked across these 61 companies; direct dials are available where recorded.
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.
Ready to reach these companies? Verified emails and direct dials for all 61 security testing companies based in Belgium. Start with a free account, no credit card.
Download this list →Related lists
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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.
More company lists
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- Security testing companies based in the United States
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Company intelligence · public preview
Top 24 security testing companies based in Belgium
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 61 matching company records for security testing companies based in Belgium, with 1,329 tracked contacts and 695 verified work emails.
This public preview shows 24 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 24 security testing companies based in Belgium
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Nviso Securitynviso.euHQ: Brussels, BelgiumReported employees: 201-500 | Brussels, Belgium | 201-500 | Exact match | 315 contacts → |
“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…” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Guardsquareguardsquare.comHQ: Leuven, BelgiumReported employees: 51-200 | Leuven, Belgium | 51-200 | Exact match | 163 contacts → |
“Guardsquare offers the most complete approach to mobile application security on the market.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Aikido Securityaikido.devHQ: Ghent, BelgiumReported employees: 201-500 | Ghent, Belgium | 201-500 | Exact match | 154 contacts → |
“From vulnerability management to penetration testing, secure everything you build, host, and run with Aikido.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  The Security Factorythesecurityfactory.beHQ: Niel, BelgiumReported employees: 11-50 | Niel, Belgium | 11-50 | Exact match | 21 contacts → |
“The main goal of the Security Factory is to test/assess the current security maturity level of clients.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Thales Cyber Solutions Belgiumexcellium-services.com HQ: BelgiumReported employees: 11-50 | Belgium | 11-50 | Exact match | 20 contacts → |
“At Thales Cyber Solutions Belgium, we strive for security & privacy.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Cresco Cybersecuritycresco.beHQ: Belgium France Luxembourg Netherlands, BelgiumReported employees: 11-50 | Belgium France Luxembourg Netherlands, Belgium | 11-50 | Exact match | 19 contacts → |
“Cresco is your partner in cybersecurity.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Redsystemredsystem.ioHQ: Froyennes, BelgiumReported employees: 11-50 | Froyennes, Belgium | 11-50 | Exact match | 18 contacts → |
“Our mission is to advise and support you in minimizing the attack surface that could threaten your business.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Curioscurios-it.euHQ: Antwerp, BelgiumReported employees: 1-10 | Antwerp, Belgium | 1-10 | Exact match | 10 contacts → |
“Curios is a boutique cybersecurity and compliance consultancy in Antwerp, serving enterprises across Belgium and Europe.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Splyntersplynter.beHQ: Kontich, BelgiumReported employees: 1-10 | Kontich, Belgium | 1-10 | Exact match | 8 contacts → |
“At Splynter we want to help companies understand their adversaries and how to combat them.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Cyberplancyberplan.beHQ: Oostkamp, BelgiumReported employees: 11-50 | Oostkamp, Belgium | 11-50 | Exact match | 6 contacts → |
“Wij geloven dat cybersecurity niet zo complex hoeft te zijn.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Sectricity Outsmart Hackerssectricity.comHQ: Belgium Netherlands United Kingdom, BelgiumReported employees: 1-10 | Belgium Netherlands United Kingdom, Belgium | 1-10 | Exact match | 5 contacts → |
“Most companies discover a security gap only after a breach.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Guardisguardis.comHQ: Hannut, BelgiumReported employees: 1-10 | Hannut, Belgium | 1-10 | Exact match | 5 contacts → |
“Guardis helps organizations design, secure and operate their IT infrastructure, from cloud-native environments to industrial systems.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Cybervaluecybervalue.netHQ: Leuven, BelgiumReported employees: 1-10 | Leuven, Belgium | 1-10 | Exact match | 3 contacts → |
“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…” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Quintes BVquintes.beHQ: Sint-gillis-waas, BelgiumReported employees: 1-10 | Sint-gillis-waas, Belgium | 1-10 | Exact match | 2 contacts → |
“In today’s world, Information Technology is clearly a part of how companies manage and do their business.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Odsc Sprlodsc.beHQ: Namur, BelgiumReported employees: 1-10 | Namur, Belgium | 1-10 | Exact match | 2 contacts → |
“Chez ODSC, nous accompagnons les entreprises dans la sécurisation de leurs actifs numériques à travers une approche complète et humaine de la cybersécurité.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Securenesssecureness.be HQ: Kortrijk, BelgiumReported employees: 1-10 | Kortrijk, Belgium | 1-10 | Exact match | 1 contacts → |
“Secureness staat garant voor het beveiligen van uw omgeving.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Cyberinitcyberinit.beHQ: Waremme, BelgiumReported employees: 1-10 | Waremme, Belgium | 1-10 | Exact match | 1 contacts → |
“Cybersecurity specialization* At CyberInIT, we specialize in a full range of cybersecurity services, from in-depth security audits to the implementation of robust defense…” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Be-Sure Consultingbe-sure.beHQ: Eigenbilzen, BelgiumReported employees: 1-10 | Eigenbilzen, Belgium | 1-10 | Exact match | 1 contacts → |
“Testing software is absolutely essential to ensure that your product is top-notch and performs exactly as it should.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Blue Canarybluecanary.beHQ: Bruges, BelgiumReported employees: 1-10 | Bruges, Belgium | 1-10 | Exact match | 1 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 20 |  Cybernoobcybernoob.ioHQ: Wallifornia, BelgiumReported employees: 1-10 | Wallifornia, Belgium | 1-10 | Exact match | 1 contacts → |
“Make an immediate tangible impact on the cybersecurity posture of your organization by leveraging the expertise of real hackers!” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  RED Fuse Securityredfuse-security.comHQ: Le Roeulx, BelgiumReported employees: 1-10 | Le Roeulx, Belgium | 1-10 | Exact match | 1 contacts → |
“Specialized IT company focused on Offensive Security, Penetration Testing and IT Security Strategic consulting.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Achillex BVachillex.beHQ: Brussels, BelgiumReported employees: 1-10 | Brussels, Belgium | 1-10 | Exact match | 1 contacts → |
“Our passion for security runs deep and wide.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Cyberxpertcyberxpert.beHQ: Brussels, BelgiumReported employees: 1-10 | Brussels, Belgium | 1-10 | Exact match | 1 contacts → |
“For over 10 years, we have been helping our customers in all sectors to meet their needs.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Securenzasecurenza.beHQ: Genk, BelgiumReported employees: 1-10 | Genk, Belgium | 1-10 | Exact match | 1 contacts → |
“We aim to improve the overall security posture and security practices of our clients.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 24 of 61 company matches
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Security testing companies: dataset insights
September 6, 2026These summaries describe recorded coverage in this saved dataset. Coverage describes records in RevenueBase, rather than a census of every business in this market.
Reported company sizes
61 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Freshness & accuracy
How recently the business emails on this list were verified
Email last verified
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
Coverage describes records in RevenueBase, rather than a census of every business in this market.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for security testing companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many security testing companies did RevenueBase find based in Belgium?
The saved snapshot records 61 matching company records, 1,329 tracked contacts and 695 verified emails. The public preview displays 24 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Security testing companies by geography
- Security testing companies based in the United States
- Security testing companies based in the United Kingdom
- Security testing companies based in Canada
- Security testing companies based in France
- Security testing companies based in Germany
- Security testing companies based in Brazil
- Security testing companies based in Australia
- Security testing companies based in the Netherlands
- Security testing companies based in Spain
- Security testing companies based in Israel
- Security testing companies based in Poland
- Security testing companies based in Italy
Browse the directory
Cite this list
RevenueBase Data Team. Top 24 security testing companies based in Belgium. Snapshot: September 6, 2026. https://revenuebase.ai/companies/security-testing-companies/belgium.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Security testing companies based in the United States
- Security testing companies based in the United Kingdom
- Security testing companies based in Canada
- Security testing companies based in France
- Security testing companies based in Germany
- Security testing companies based in Brazil
Company intelligence · public preview
Top 24 security testing companies based in Belgium
RevenueBase records 61 matching company records for security testing companies based in Belgium, with 1,329 tracked contacts and 695 verified work emails.
This public preview shows 24 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 24 security testing companies based in Belgium
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Nviso Securitynviso.eu HQ: Brussels, BelgiumReported employees: 201-500 | Brussels, Belgium | 201-500 | Exact match | 315 contacts → |
“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…” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Guardsquareguardsquare.com HQ: Leuven, BelgiumReported employees: 51-200 | Leuven, Belgium | 51-200 | Exact match | 163 contacts → |
“Guardsquare offers the most complete approach to mobile application security on the market.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Aikido Securityaikido.dev HQ: Ghent, BelgiumReported employees: 201-500 | Ghent, Belgium | 201-500 | Exact match | 154 contacts → |
“From vulnerability management to penetration testing, secure everything you build, host, and run with Aikido.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | The Security Factorythesecurityfactory.be HQ: Niel, BelgiumReported employees: 11-50 | Niel, Belgium | 11-50 | Exact match | 21 contacts → |
“The main goal of the Security Factory is to test/assess the current security maturity level of clients.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Thales Cyber Solutions Belgiumexcellium-services.com HQ: BelgiumReported employees: 11-50 | Belgium | 11-50 | Exact match | 20 contacts → |
“At Thales Cyber Solutions Belgium, we strive for security & privacy.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Cresco Cybersecuritycresco.be HQ: Belgium France Luxembourg Netherlands, BelgiumReported employees: 11-50 | Belgium France Luxembourg Netherlands, Belgium | 11-50 | Exact match | 19 contacts → |
“Cresco is your partner in cybersecurity.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Redsystemredsystem.io HQ: Froyennes, BelgiumReported employees: 11-50 | Froyennes, Belgium | 11-50 | Exact match | 18 contacts → |
“Our mission is to advise and support you in minimizing the attack surface that could threaten your business.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Curioscurios-it.eu HQ: Antwerp, BelgiumReported employees: 1-10 | Antwerp, Belgium | 1-10 | Exact match | 10 contacts → |
“Curios is a boutique cybersecurity and compliance consultancy in Antwerp, serving enterprises across Belgium and Europe.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Splyntersplynter.be HQ: Kontich, BelgiumReported employees: 1-10 | Kontich, Belgium | 1-10 | Exact match | 8 contacts → |
“At Splynter we want to help companies understand their adversaries and how to combat them.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Cyberplancyberplan.be HQ: Oostkamp, BelgiumReported employees: 11-50 | Oostkamp, Belgium | 11-50 | Exact match | 6 contacts → |
“Wij geloven dat cybersecurity niet zo complex hoeft te zijn.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Sectricity Outsmart Hackerssectricity.com HQ: Belgium Netherlands United Kingdom, BelgiumReported employees: 1-10 | Belgium Netherlands United Kingdom, Belgium | 1-10 | Exact match | 5 contacts → |
“Most companies discover a security gap only after a breach.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Guardisguardis.com HQ: Hannut, BelgiumReported employees: 1-10 | Hannut, Belgium | 1-10 | Exact match | 5 contacts → |
“Guardis helps organizations design, secure and operate their IT infrastructure, from cloud-native environments to industrial systems.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Cybervaluecybervalue.net HQ: Leuven, BelgiumReported employees: 1-10 | Leuven, Belgium | 1-10 | Exact match | 3 contacts → |
“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…” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Quintes BVquintes.be HQ: Sint-gillis-waas, BelgiumReported employees: 1-10 | Sint-gillis-waas, Belgium | 1-10 | Exact match | 2 contacts → |
“In today’s world, Information Technology is clearly a part of how companies manage and do their business.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Odsc Sprlodsc.be HQ: Namur, BelgiumReported employees: 1-10 | Namur, Belgium | 1-10 | Exact match | 2 contacts → |
“Chez ODSC, nous accompagnons les entreprises dans la sécurisation de leurs actifs numériques à travers une approche complète et humaine de la cybersécurité.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Securenesssecureness.be HQ: Kortrijk, BelgiumReported employees: 1-10 | Kortrijk, Belgium | 1-10 | Exact match | 1 contacts → |
“Secureness staat garant voor het beveiligen van uw omgeving.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Cyberinitcyberinit.be HQ: Waremme, BelgiumReported employees: 1-10 | Waremme, Belgium | 1-10 | Exact match | 1 contacts → |
“Cybersecurity specialization* At CyberInIT, we specialize in a full range of cybersecurity services, from in-depth security audits to the implementation of robust defense…” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Be-Sure Consultingbe-sure.be HQ: Eigenbilzen, BelgiumReported employees: 1-10 | Eigenbilzen, Belgium | 1-10 | Exact match | 1 contacts → |
“Testing software is absolutely essential to ensure that your product is top-notch and performs exactly as it should.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Blue Canarybluecanary.be HQ: Bruges, BelgiumReported employees: 1-10 | Bruges, Belgium | 1-10 | Exact match | 1 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 20 | Cybernoobcybernoob.io HQ: Wallifornia, BelgiumReported employees: 1-10 | Wallifornia, Belgium | 1-10 | Exact match | 1 contacts → |
“Make an immediate tangible impact on the cybersecurity posture of your organization by leveraging the expertise of real hackers!” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | RED Fuse Securityredfuse-security.com HQ: Le Roeulx, BelgiumReported employees: 1-10 | Le Roeulx, Belgium | 1-10 | Exact match | 1 contacts → |
“Specialized IT company focused on Offensive Security, Penetration Testing and IT Security Strategic consulting.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Achillex BVachillex.be HQ: Brussels, BelgiumReported employees: 1-10 | Brussels, Belgium | 1-10 | Exact match | 1 contacts → |
“Our passion for security runs deep and wide.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Cyberxpertcyberxpert.be HQ: Brussels, BelgiumReported employees: 1-10 | Brussels, Belgium | 1-10 | Exact match | 1 contacts → |
“For over 10 years, we have been helping our customers in all sectors to meet their needs.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Securenzasecurenza.be HQ: Genk, BelgiumReported employees: 1-10 | Genk, Belgium | 1-10 | Exact match | 1 contacts → |
“We aim to improve the overall security posture and security practices of our clients.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 24 of 61 company matches
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Security testing companies: dataset insights
September 6, 2026These summaries describe recorded coverage in this saved dataset. Coverage describes records in RevenueBase, rather than a census of every business in this market.
Reported company sizes
61 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Freshness & accuracy
How recently the business emails on this list were verified
Email last verified
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
Coverage describes records in RevenueBase, rather than a census of every business in this market.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for security testing companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many security testing companies did RevenueBase find based in Belgium?
The saved snapshot records 61 matching company records, 1,329 tracked contacts and 695 verified emails. The public preview displays 24 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
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Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 24 security testing companies based in Belgium. Snapshot: September 6, 2026. https://revenuebase.ai/companies/security-testing-companies/belgium.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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