Company lists · Data refreshed October 2026

Top 25 Cybersecurity services firms based in Portugal

RevenueBase identified 87 company matches for cybersecurity services firms associated with Portugal as of October 2026 and tracks 802 professional contacts across them, including 365 with verified work emails. Lisbon is the largest hub.

This list covers company matches for cybersecurity services firms associated with Portugal, 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 October 1, 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 RevenueBase SmartSearch · Exact Recorded Oct 1, 2026 How this list was built
87Companies
802Contacts tracked
365Verified emails
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The 25 largest cybersecurity services firms based in Portugal

Ranked by team size
Top 25 of 87 company matches for cybersecurity services firms based in Portugal, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 1, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchErmesinde, PortugalHQ recorded Oct 1, 202651-200129 contacts →

Exact match

“Fundada em 2002, a SECURNET dedica-se à integração de tecnologias de informação, prestando um conjunto de serviços técnicos especializados de consultoria e auditoria, engenharia…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
2Exact matchPorto, PortugalHQ recorded Oct 1, 202651-200105 contacts →

Exact match

“A VisionWare é uma empresa 100% portuguesa, fundada em 2005 e altamente especializada em Segurança de Informação: Cibersegurança, TI, investigação forense, compliance, privacidade…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
3Exact matchLisbon, PortugalHQ recorded Oct 1, 202651-20096 contacts →

Exact match

“A LAYER8 é uma empresa de Segurança da Informação e Gestão de Conformidade dedicada à proteção dos seus ativos digitais e à garantia da conformidade regulamentar.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
4Exact matchAlfragide, PortugalHQ recorded Oct 1, 202611-5056 contacts →

Exact match

“CyberSafe is a Portuguese company focused on cybersecurity.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
5Exact matchLisbon, PortugalHQ recorded Oct 1, 202611-5043 contacts →

Exact match

“Chief Security Officers it's a company of the group Art of Knowledge, specialized in the field of information security.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
6Exact matchLisbon, PortugalHQ recorded Oct 1, 202651-20040 contacts →

Exact match

“DefensePoint builds secure software and delivers cybersecurity services for regulated industries - defense, finance, healthcare, and energy.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
7Exact matchVila Nova De Gaia, PortugalHQ recorded Oct 1, 202611-5025 contacts →

Exact match

“Your partner for IT managed services and cybersecurity.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
8Exact matchLisbon, PortugalHQ recorded Oct 1, 202611-5025 contacts →

Exact match

“AnubisNetworks is an Email CyberSecurity company.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
9Exact matchAlmada, PortugalHQ recorded Oct 1, 202651-20020 contacts →

Exact match

“A ITGest IS é uma empresa especializada em infraestruturas tecnológicas, serviços geridos (IT Managed Services) e cibersegurança, posicionando-se como um parceiro estratégico na…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
10Exact matchSão João Da Madeira, PortugalHQ recorded Oct 1, 202611-5017 contacts →

Exact match

“Cyber1 is an information technology company that presents solutions in the areas of Cyber Security, IoT, Data Protection, Cloud Computing and Cryptocurrency Security.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
11Exact matchViana Do Castelo, PortugalHQ recorded Oct 1, 202651-20013 contacts →

Exact match

“Established from the ground up in 2016 by Cybersecurity Professionals, CyberArm is unique in its goal of simplifying cybersecurity for all organizations.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
12Exact matchBraga, PortugalHQ recorded Oct 1, 202611-5012 contacts →

Exact match

“Rolling Space is an IT company.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
13Exact matchLoulé, PortugalHQ recorded Oct 1, 20261-1011 contacts →

Exact match

“Empresa Especializada em Cibersegurança, Proteção de Dados e Integração de Tecnologias - Cyber Security as a Service (CSaaS)”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
14Exact matchLisbon, PortugalHQ recorded Oct 1, 202611-5010 contacts →

Exact match

“We are consulting services company specialising in cyber security with a focus on Application Security & GRC.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
15Exact matchLeiria, PortugalHQ recorded Oct 1, 20261-1010 contacts →

Exact match

“LockEM offers small and medium-sized businesses a robust cyber resilience solution that not only quickly restores operations after a cyberattack, but also ensures compliance with…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
16Exact matchTrofa, PortugalHQ recorded Oct 1, 20261-109 contacts →

Exact match

“We focus on implementing IT Solutions tailored to the needs of our customers.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
17Exact matchPorto, PortugalHQ recorded Oct 1, 20261-108 contacts →

Exact match

“CyberX - The Ethical Hacking Services, a top Portuguese company specializing in security audits, offers services including Penetration Testing (pentest), Code Analysis (SAST)…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
18Exact matchPorto, PortugalHQ recorded Oct 1, 202611-507 contacts →

Exact match

“Established in 2018 as a spinoff of ITSector, SecuritySide is a Portuguese firm founded by a seasoned group of fintech specialists.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
19Exact matchLisbon, PortugalHQ recorded Oct 1, 20261-105 contacts →

Exact match

“Somos uma empresa de tecnologias da informação especializada na área de Cybersecurity Awareness e pretendemos ocupar o nosso espaço neste mercado como a primeira empresa dedicada…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
20Exact matchPorto, PortugalHQ recorded Oct 1, 20261-104 contacts →

Exact match

“A Switch Digital Consulting (SDC) é uma consultora especializada em cibersegurança, focada na definição e implementação de estratégias que reforçam a resiliência digital.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
21Exact matchPorto, PortugalHQ recorded Oct 1, 20261-103 contacts →

Exact match

“Empower businesses and organizations to take control of their online security and protect against cyber threats.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
22Exact matchPonta Delgada, PortugalHQ recorded Oct 1, 202611-503 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
23Exact matchQueluz-de-baixo, PortugalHQ recorded Oct 1, 20261-103 contacts →

Exact match

“We provide IT managed services, computer security consulting and other associated services.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
24Exact matchOdivelas, PortugalHQ recorded Oct 1, 20261-103 contacts →

Exact match

“3|Strategy helps organizations get ready for cyber threats.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
25Exact matchLisbon, PortugalHQ recorded Oct 1, 202611-502 contacts →

Exact match

“Sysvalue is specialized in consulting, integration and security services.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase

Showing 25 of 87 cybersecurity services firms based in Portugal

See the full list, filter by size, metro and specialty, and access 365 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Cybersecurity services firms based in Portugal at a glance

As of Oct 1, 2026
45.5%Verified-email coverage
9.2Average contacts per company
1-10Median size (employees)
31.0%Largest-city concentration · Lisbon
Oct 1, 2026Page data refreshed

Companies by employee count

1-10
55
11-50
25
51-200
7

Email recency for this list is measured worldwide rather than for Portugal, so it is reported there. Company counts and contact totals on this page are exact for Portugal, over 87 companies.

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 Portugal whose business descriptions match “cybersecurity services firms” 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 365 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 October 1, 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 “cybersecurity services firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many cybersecurity services firms are there based in Portugal?

RevenueBase identified 87 company matches for cybersecurity services firms associated with Portugal as of October 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?

Securnet tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most cybersecurity services firms?

Lisbon leads with 27 company records, followed by Porto (8) and Alfragide (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 365 professional contacts with verified work emails tracked across these 87 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 October 1, 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.