Company lists · Data refreshed September 2026
Top 25 Secure software development companies based in Portugal
RevenueBase identified 95 secure software development companies headquartered in Portugal as of September 2026 and tracks 1,103 professional contacts across them, including 321 with verified work emails and 50 with mobile numbers. Lisboa is the largest hub.
This list covers secure software development companies 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, how directly it supports the match, and when it was last checked. 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 25 largest secure software development companies based in Portugal
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 129 | ||||
“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: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 2 | Armis GroupPartial evidence | 115 | |||
“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: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 3 | 105 | ||||
“A Decsis é uma empresa de tecnologia fundada em 1994 que ajuda empresas a prosperarem com soluções de TI personalizadas e confiáveis.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 4 | 70 | ||||
“At ORBCOM, we are passionate about technology and innovation.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 5 | 43 | ||||
“Chief Security Officers it's a company of the group Art of Knowledge, specialized in the field of information security.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 6 | 40 | ||||
“DefensePoint builds secure software and delivers cybersecurity services for regulated industries - defense, finance, healthcare, and energy.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 7 | 38 | ||||
“We love solving deep technical problems.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 8 | Basetx ConsultingPartial evidence | 28 | |||
“A Base TX é uma empresa especializada no desenvolvimento e implementação de Software de Gestão, Infra-Estruturas e Segurança.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 9 | 25 | ||||
“Your partner for IT managed services and cybersecurity.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 10 | SeegnoIndirect evidence | 17 | |||
“Launched in October 2008, Seegno is the coming together of skilled individuals with different backgrounds, but a shared vision.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 11 | 17 | ||||
“Cyber1 is an information technology company that presents solutions in the areas of Cyber Security, IoT, Data Protection, Cloud Computing and Cryptocurrency Security.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 12 | 14 | ||||
“Eficiência operacional e segura.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 13 | 13 | ||||
“Established from the ground up in 2016 by Cybersecurity Professionals, CyberArm is unique in its goal of simplifying cybersecurity for all organizations.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 14 | 10 | ||||
“We are consulting services company specialising in cyber security with a focus on Application Security & GRC.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 15 | 10 | ||||
“IT related.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 16 | MGVSIIndirect evidence | 9 | |||
“We focus on implementing IT Solutions tailored to the needs of our customers.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 17 | 8 | ||||
“A PROXSYS SOLUTIONS é uma empresa integradora de soluções tecnológicas, com vasta experiência na área de Sistemas de Informação e Segurança.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 18 | 7 | ||||
“Established in 2018 as a spinoff of ITSector, SecuritySide is a Portuguese firm founded by a seasoned group of fintech specialists.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 19 | 6 | ||||
“Juntando o know-how de várias áreas e ramos das tecnologias de informação com a experiência profissional adquirida em projetos com empresas como Blaupunkt, Bosch Rexroth, Optimus…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 20 | Wide ShiftIndirect evidence | 5 | |||
“Soluções para empresas” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 21 | 7logIndirect evidence | 4 | |||
Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 22 | 4 | ||||
“A Switch Digital Consulting (SDC) é uma consultora especializada em cibersegurança, focada na definição e implementação de estratégias que reforçam a resiliência digital.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 23 | Way2inovIndirect evidence | 4 | |||
“A WAY2INOV como o nome indica proporciona-lhe um caminho para a inovação.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 24 | 4 | ||||
“Technology and Information Security” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 25 | NextviewPartial evidence | 3 | |||
“A Nextview é uma empresa de consultoria informática e desenvolvimento de software.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 95 secure software development companies based in Portugal
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Secure software development companies based in Portugal at a glance
As of Sep 6, 2026Companies by employee count
Verified emails by last verification
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 secure software development 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 Portugal whose own description of what they do matches “secure software development 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 secure software development 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 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, 321 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 6, 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 secure software development companies are there based in Portugal?
RevenueBase identified 95 secure software development companies 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?
Securnet, headquartered in Ermesinde, tops this list with the largest team on record.
Which city has the most secure software development companies?
Lisboa leads with 15 headquartered companies, followed by Porto (12) and Lisbon (11).
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 321 verified decision-maker contacts tracked across these 95 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 6, 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.
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