Company lists · Data refreshed September 2026

Top 25 Cybersecurity platforms based in Portugal

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

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 109 companies tracked

RevenueBase identified 109 cybersecurity platforms headquartered in Portugal as of September 2026 and tracks 916 professional contacts across them, including 371 with verified work emails. Lisbon is the largest hub.

This list covers cybersecurity platforms headquartered in Portugal, 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 28, 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 28, 2026 86% judged on-target in blind review

109Companies

916Contacts tracked

371Verified emails

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The 25 largest cybersecurity platforms based in Portugal

Ranked by team size

Top 25 of 109 cybersecurity platforms based in Portugal, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to cybersecurity platforms: 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	Visionware	Indirect evidence	Porto, PortugalHQ checked Sep 28, 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 28, 2026
2	Layer8	Indirect evidence	Lisbon, PortugalHQ checked Sep 28, 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 28, 2026
3	Cybersafe	Partial evidence	Alfragide, PortugalHQ checked Sep 28, 2026	11-50	56 contacts →
	Partial evidence “CyberSafe is a Portuguese company focused on cybersecurity.” Source: RevenueBase Database · checked Sep 28, 2026
4	Grupo Microsegur	Indirect evidence	Lisboa, PortugalHQ checked Sep 28, 2026	11-50	45 contacts →
	Indirect evidence “A Microsegur celebra 29 anos de experiência consolidada nos mercados de Portugal e Angola, posicionando-se como uma empresa de Engenharia em Soluções Integradas de Tecnologia.” Source: RevenueBase Database · checked Sep 28, 2026
5	Chief Security Officers, SA	Indirect evidence	Lisboa, PortugalHQ checked Sep 28, 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 28, 2026
6	Ethiack	Indirect evidence	Coimbra, PortugalHQ checked Sep 28, 2026	11-50	42 contacts →
	Indirect evidence “Security teams don't lack vulnerabilities.” Source: RevenueBase Database · checked Sep 28, 2026
7	Defensepoint	Partial evidence	Lisbon, PortugalHQ checked Sep 28, 2026	51-200	40 contacts →
	Partial evidence “DefensePoint builds secure software and delivers cybersecurity services for regulated industries - defense, finance, healthcare, and energy.” Source: RevenueBase Database · checked Sep 28, 2026
8	Next IT	Partial evidence	Vila Nova De Gaia, PortugalHQ checked Sep 28, 2026	11-50	25 contacts →
	Partial evidence “Your partner for IT managed services and cybersecurity.” Source: RevenueBase Database · checked Sep 28, 2026
9	Anubisnetworks	Partial evidence	Lisbon, PortugalHQ checked Sep 28, 2026	11-50	25 contacts →
	Partial evidence “AnubisNetworks is an Email CyberSecurity company.” Source: RevenueBase Database · checked Sep 28, 2026
10	Arturai	Indirect evidence	Matosinhos, PortugalHQ checked Sep 28, 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 28, 2026
11	Cyber1 Group	Indirect evidence	São João Da Madeira, PortugalHQ checked Sep 28, 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 28, 2026
12	Agora SYS	Indirect evidence	Lisbon, PortugalHQ checked Sep 28, 2026	11-50	15 contacts →
	Indirect evidence “AGORA is a software engineering company focused on developing applications for physical security services and management.” Source: RevenueBase Database · checked Sep 28, 2026
13	Cyberarm	Partial evidence	Viana Do Castelo, PortugalHQ checked Sep 28, 2026	51-200	13 contacts →
	Partial 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 28, 2026
14	The Rock	Indirect evidence	Gouveia, PortugalHQ checked Sep 28, 2026	1-10	13 contacts →
	Indirect evidence “The Rock pretende desenvolver um ecossistema ligado à cibersegurança e promover as boas práticas de segurança de informação através do desenvolvimento das seguintes áreas -…” Source: RevenueBase Database · checked Sep 28, 2026
15	Aegis Authentication Technologies	Indirect evidence	Talaide, PortugalHQ checked Sep 28, 2026	11-50	12 contacts →
	Indirect evidence “Your Shield in the Authentication Realm” Source: RevenueBase Database · checked Sep 28, 2026
16	Rolling Space	Indirect evidence	Braga, PortugalHQ checked Sep 28, 2026	11-50	12 contacts →
	Indirect evidence “Rolling Space is an IT company.” Source: RevenueBase Database · checked Sep 28, 2026
17	Cyberprotech	Indirect evidence	Loulé, PortugalHQ checked Sep 28, 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 28, 2026
18	Lockem	Indirect evidence	Leiria, PortugalHQ checked Sep 28, 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 28, 2026
19	Officelan	Indirect evidence	Canas De Senhorim, PortugalHQ checked Sep 28, 2026	11-50	8 contacts →
	Indirect evidence “soluções de redes LAN, Wi-Fi e 5G.tecnologia para eventos.cibersegurança e sistemas de informação.MikroTik.Ubiquiti.Grandstream.Alta Labs” Source: RevenueBase Database · checked Sep 28, 2026
20	Cyberx, LDA	Indirect evidence	Porto, PortugalHQ checked Sep 28, 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 28, 2026
21	Securityside, Cybersecurity Services	Indirect evidence	Porto, PortugalHQ checked Sep 28, 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 28, 2026
22	Partneer	Indirect evidence	Lisbon City, PortugalHQ checked Sep 28, 2026	201-500	7 contacts →
	Indirect evidence “Welcome to Partneer.” Source: RevenueBase Database · checked Sep 28, 2026
23	Diamwall	Strong evidence	Lisboa, PortugalHQ checked Sep 28, 2026	1-10	6 contacts →
	Strong evidence “DiamWall is a global CDN and cybersecurity platform with automated DDoS mitigation and WAF.” Source: RevenueBase Database · checked Sep 28, 2026
24	Rootkey	Indirect evidence	Lisbon, PortugalHQ checked Sep 28, 2026	1-10	6 contacts →
	Indirect evidence “ROOTKey is a cyber resilience company building resilience through blockchain.” Source: RevenueBase Database · checked Sep 28, 2026
25	Cesicp	Indirect evidence	Lisbon, PortugalHQ checked Sep 28, 2026	11-50	5 contacts →
	Indirect evidence “O CESICP [Centro de Estudos em Segurança de Informação, Cibersegurança e Privacidade] integra na sua estrutura um observatório que visa implementar e manter um sistema de recolha…” Source: RevenueBase Database · checked Sep 28, 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 platforms. 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 platforms.
Partial evidence: Its own public description names part of cybersecurity platforms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name cybersecurity platforms. 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 109 cybersecurity platforms based in Portugal

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Cybersecurity platforms based in Portugal at a glance

As of Sep 28, 2026

40.5%Verified-email coverage

8.4Average contacts per company

1-10Median size (employees)

17.4%Largest-city concentration · Lisbon

Sep 28, 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 109 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 platforms, 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 platforms”. 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 platforms), 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 platforms, 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, 371 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 28, 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 cybersecurity platforms, 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 cybersecurity platforms are there based in Portugal?

RevenueBase identified 109 cybersecurity platforms headquartered in Portugal 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?

Visionware, headquartered in Porto, tops this list with the largest team on record.

Which city has the most cybersecurity platforms?

Lisbon leads with 19 headquartered companies, followed by Lisboa (17) and Porto (10).

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 371 verified decision-maker contacts tracked across these 109 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 28, 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.