Company lists · Data refreshed September 2026

Top 25 Cybersecurity companies based in Portugal

Name: Cybersecurity companies based in Portugal
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 14, 2026 121 companies tracked

Our directory lists 121 cybersecurity companies based in Portugal, with 1,320 professional contacts and 458 email addresses. The list was last updated in September 2026, and Lisbon is the single most-represented city among the companies listed.

Cybersecurity companies provide products and services that protect systems, networks, applications, devices, and data from unauthorized access, disruption, or misuse. This list covers companies that provide cybersecurity products, services, consulting, assessments, monitoring, incident response, or related protection for digital systems and data. Ranked by team size, largest first. Data current as of September 14, 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 14, 2026 86% judged on-target in blind review

121Companies

1,320Contacts tracked

458Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest cybersecurity companies based in Portugal

Ranked by team size

Top 25 of 121 cybersecurity companies based in Portugal, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to cybersecurity 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Securnet	Indirect evidence	Ermesinde, PortugalHQ checked Sep 14, 2026	51-200	129 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 14, 2026
2	Armis Group	Indirect evidence	Porto, PortugalHQ checked Sep 14, 2026	201-500	115 contacts →
	Indirect evidence “ARMIS is a technology group with more than 19 years of history, dedicated to innovation, development and implementation of solutions that improve the growth of its clients.” Source: RevenueBase Database · checked Sep 14, 2026
3	Visionware	Indirect evidence	Porto, PortugalHQ checked Sep 14, 2026	51-200	105 contacts →
	Indirect evidence “A VisionWare é uma empresa 100% portuguesa, fundada em 2005 e altamente especializada em Segurança de Informação: Cibersegurança, TI, investigação forense, compliance, privacidade…” Source: RevenueBase Database · checked Sep 14, 2026
4	Layer8	Indirect evidence	Lisbon, PortugalHQ checked Sep 14, 2026	51-200	96 contacts →
	Indirect evidence “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.” Source: RevenueBase Database · checked Sep 14, 2026
5	Cybersafe	Strong evidence	Alfragide, PortugalHQ checked Sep 14, 2026	11-50	56 contacts →
	Strong evidence “CyberSafe is a Portuguese company focused on cybersecurity.” Source: RevenueBase Database · checked Sep 14, 2026
6	Chief Security Officers, SA	Indirect evidence	Lisboa, PortugalHQ checked Sep 14, 2026	11-50	43 contacts →
	Indirect evidence “Chief Security Officers it's a company of the group Art of Knowledge, specialized in the field of information security.” Source: RevenueBase Database · checked Sep 14, 2026
7	Ethiack	Indirect evidence	Coimbra, PortugalHQ checked Sep 14, 2026	11-50	42 contacts →
	Indirect evidence “Security teams don't lack vulnerabilities.” Source: RevenueBase Database · checked Sep 14, 2026
8	Defensepoint	Strong evidence	Lisbon, PortugalHQ checked Sep 14, 2026	51-200	40 contacts →
	Strong evidence “DefensePoint builds secure software and delivers cybersecurity services for regulated industries - defense, finance, healthcare, and energy.” Source: RevenueBase Database · checked Sep 14, 2026
9	Next IT	Strong evidence	Vila Nova De Gaia, PortugalHQ checked Sep 14, 2026	11-50	25 contacts →
	Strong evidence “Your partner for IT managed services and cybersecurity.” Source: RevenueBase Database · checked Sep 14, 2026
10	Anubisnetworks	Strong evidence	Lisbon, PortugalHQ checked Sep 14, 2026	11-50	25 contacts →
	Strong evidence “AnubisNetworks is an Email CyberSecurity company.” Source: RevenueBase Database · checked Sep 14, 2026
11	Itgest IS	Indirect evidence	Almada, PortugalHQ checked Sep 14, 2026	51-200	20 contacts →
	Indirect evidence “A ITGest IS é uma empresa especializada em infraestruturas tecnológicas, serviços geridos (IT Managed Services) e cibersegurança, posicionando-se como um parceiro estratégico na…” Source: RevenueBase Database · checked Sep 14, 2026
12	Arturai	Indirect evidence	Matosinhos, PortugalHQ checked Sep 14, 2026	11-50	17 contacts →
	Indirect evidence “Arturai is a leading Multicloud Security company with operations in Portugal, Spain, Italy, Switzerland, Germany, Austria, France, UK and Ireland.” Source: RevenueBase Database · checked Sep 14, 2026
13	Cyber1 Group	Indirect evidence	São João Da Madeira, PortugalHQ checked Sep 14, 2026	11-50	17 contacts →
	Indirect evidence “Cyber1 is an information technology company that presents solutions in the areas of Cyber Security, IoT, Data Protection, Cloud Computing and Cryptocurrency Security.” Source: RevenueBase Database · checked Sep 14, 2026
14	Cyberarm	Strong evidence	Viana Do Castelo, PortugalHQ checked Sep 14, 2026	51-200	13 contacts →
	Strong evidence “Established from the ground up in 2016 by Cybersecurity Professionals, CyberArm is unique in its goal of simplifying cybersecurity for all organizations.” Source: RevenueBase Database · checked Sep 14, 2026
15	Aegis Authentication Technologies	Indirect evidence	Talaide, PortugalHQ checked Sep 14, 2026	11-50	12 contacts →
	Indirect evidence “Your Shield in the Authentication Realm” Source: RevenueBase Database · checked Sep 14, 2026
16	Rolling Space	Indirect evidence	Braga, PortugalHQ checked Sep 14, 2026	11-50	12 contacts →
	Indirect evidence “Rolling Space is an IT company.” Source: RevenueBase Database · checked Sep 14, 2026
17	Cyberprotech	Indirect evidence	Loulé, PortugalHQ checked Sep 14, 2026	1-10	11 contacts →
	Indirect evidence “Empresa Especializada em Cibersegurança, Proteção de Dados e Integração de Tecnologias - Cyber Security as a Service (CSaaS)” Source: RevenueBase Database · checked Sep 14, 2026
18	Balwurk	Indirect evidence	Lisbon, PortugalHQ checked Sep 14, 2026	11-50	10 contacts →
	Indirect evidence “We are consulting services company specialising in cyber security with a focus on Application Security & GRC.” Source: RevenueBase Database · checked Sep 14, 2026
19	Lockem	Indirect evidence	Leiria, PortugalHQ checked Sep 14, 2026	1-10	10 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 14, 2026
20	MGVSI	Indirect evidence	Trofa, PortugalHQ checked Sep 14, 2026	1-10	9 contacts →
	Indirect evidence “We focus on implementing IT Solutions tailored to the needs of our customers.” Source: RevenueBase Database · checked Sep 14, 2026
21	Skill & Reach	Indirect evidence	Porto, PortugalHQ checked Sep 14, 2026	1-10	8 contacts →
	Indirect evidence “A Cyber Risk Management and Quantification company, helping mid to large businesses improve security, compliance and operational resilience” Source: RevenueBase Database · checked Sep 14, 2026
22	Cyberx, LDA	Indirect evidence	Porto, PortugalHQ checked Sep 14, 2026	1-10	8 contacts →
	Indirect evidence “CyberX - The Ethical Hacking Services, a top Portuguese company specializing in security audits, offers services including Penetration Testing (pentest), Code Analysis (SAST)…” Source: RevenueBase Database · checked Sep 14, 2026
23	Securityside, Cybersecurity Services	Indirect evidence	Porto, PortugalHQ checked Sep 14, 2026	11-50	7 contacts →
	Indirect evidence “Established in 2018 as a spinoff of ITSector, SecuritySide is a Portuguese firm founded by a seasoned group of fintech specialists.” Source: RevenueBase Database · checked Sep 14, 2026
24	Thales Edisoft Portugal	Indirect evidence	Paco De Arcos, PortugalHQ checked Sep 14, 2026	201-500	6 contacts →
	Indirect evidence “Thales Edisoft Portugal is a company which promotes and delivers innovative solutions that enhance its customer’s critical systems´ security, on land, sea, air, space and…” Source: RevenueBase Database · checked Sep 14, 2026
25	Cyberawareness	Strong evidence	Lisbon, PortugalHQ checked Sep 14, 2026	1-10	5 contacts →
	Strong evidence “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…” Source: RevenueBase Database · checked Sep 14, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: cybersecurity companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names cybersecurity companies.
Partial evidence: Its own public description names part of cybersecurity companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name cybersecurity companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 121 cybersecurity companies based in Portugal

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 458 reachable decision-makers.

Free signup · no credit card

View the full list →

Cybersecurity companies based in Portugal at a glance

As of Sep 14, 2026

34.7%Verified-email coverage

10.9Average contacts per company

1-10Median size (employees)

15.7%Largest-city concentration · Lisbon

Sep 14, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

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 121 companies.

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 cybersecurity 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 Portugal whose own description of what they do matches “cybersecurity 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 cybersecurity 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 cybersecurity companies, and records with no verified work email. Companies headquartered outside Portugal 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, 458 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 14, 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 cybersecurity companies are in the directory?

The directory lists 121 cybersecurity companies based in Portugal.

Which city has the most cybersecurity companies?

Lisbon is the single most-represented city among the cybersecurity companies on the list.

How many contacts are available for cybersecurity companies?

The directory includes 1,320 professional contacts and 458 email addresses for the listed cybersecurity companies.

Ready to reach these companies? Verified emails and direct dials for all 121 cybersecurity companies based in Portugal. Start with a free account, no credit card.

Download this list →

Related lists

Cybersecurity companies by geography

Browse the directory

Browse: Companies home · All Portugal lists · All Cybersecurity companies lists · New lists

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.