Company lists · Data refreshed September 2026
Top 24 Security firms based in Portugal
RevenueBase identified 115 security firms headquartered in Portugal as of September 2026 and tracks 4,642 professional contacts across them, including 253 with verified work emails and 123 with mobile numbers. Lisboa is the largest hub.
This list covers security firms 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 24 largest security firms based in Portugal
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 641 | ||||
“Na Securitas protegemos habitações, locais de trabalho e comunidades.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 2 | 584 | ||||
“A Trablisa ESEGUR - Serviços de Segurança, S.A.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 3 | 448 | ||||
“A Prestibel opera no mercado desde 1985 e é especializada na prestação de serviços de segurança privada, tanto na vertente da vigilância humana como na vertente de vigilância…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 4 | Grupo 8 - SegurançaIndirect evidence | 250 | |||
“De origem exclusivamente privada e nacional.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 5 | Powershield- Segurança Privada S.AIndirect evidence | 213 | |||
“Com mais de uma década de experiência no setor de Segurança e Vigilância Humana e Eletrónica, a PowerSHIELD afirma-se como uma referência nacional no setor da segurança privada.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 6 | 120 | ||||
“A COPS – Companhia Operacional de Segurança, LDA.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 7 | 70 | ||||
“Engenharia de Segurança O Grupo Global Segurança foi fundado em 1985, e é actualmente um dos mais antigos na actividade da segurança.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 8 | 31 | ||||
“Há mais de 20 anos no mercado da segurança privada.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 9 | 22 | ||||
“Com atividade desde somos uma empresa especializada em Projetos, Comercialização, Instalação e Manutenção de equipamentos e sistemas de SEGURANÇA ELETRÓNICA e de COMBATE A…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 10 | 13 | ||||
“Founded in 1993 as a Distribution-oriented company for the Electronic Security Specialists.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 11 | 8 | ||||
“A Trialarmes Lda.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 12 | 6 | ||||
“Casmar Electrónica começou a sua atividade como distribuidor de produtos de segurança em 1978 em Barcelona, e em 2005 inicia a sua internacionalização com a abertura física da sua…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 13 | 6 | ||||
“A VIGION – Inovação e Segurança é uma empresa de destaque e referência no mercado nacional pela forma revolucionária como veio inovar e otimizar os sistemas de segurança.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 14 | 6 | ||||
“A SOC · Segurança Privada é uma empresa especializada na análise e prevenção de riscos, no desenvolvimento de Soluções e Serviços na área da Segurança e Vigilância.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 15 | 5 | ||||
“A Horalarme iniciou a sua atividade a 6 de fevereiro de 2003 e apresenta-se enquanto empresa instaladora de sistemas de alarme de intrusão, de incêndio, de circuitos fechados de…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 16 | 5 | ||||
“Empresa certificada em instalação e manutenção a sistemas de alarme de intrusão; incêndios; videovigilância, extintores; controlo de acessos e outros.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 17 | 3 | ||||
“A 4SFTIS – Soluções Integradas de Segurança (4Safety®) é uma empresa especializada e certificada na instalação, manutenção e assistência técnica a inúmeros sistemas de segurança…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 18 | 3 | ||||
Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 19 | 3 | ||||
“A AES é uma associação de empregadores, fundada em 1990, com o objetivo de promover, entre os associados e ao nível de todo o setor da Segurança Privada, princípios de deontologia…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 20 | Voam HistóriasIndirect evidence | 2 | |||
Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 21 | TecnifirIndirect evidence | 2 | |||
Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 22 | 2 | ||||
“Composta por pessoas com um longo caminho percorrido como Técnicos de Segurança Eletrónica nas áreas de Security e Safety, a MGLR conta com mais de 40 Anos de experiência no setor…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 23 | 1 | ||||
“Projetamos soluções de segurança eletrônica para empresas e habitação: Alarmes de Intrusão Alarmes de Incêndio Videovigilancia Controlo de Acessos Videoporteiros Apostamos na mais…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 24 | Alarval-Sistemas DE Segurança LDAIndirect evidence | 1 | |||
Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
Showing 24 of 115 security firms based in Portugal
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Security firms 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 security firms, 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 “security firms”. 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 security firms, 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, 253 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 security firms are there based in Portugal?
RevenueBase identified 115 security firms 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?
Securitas Portugal, headquartered in Linda-A-Velha, tops this list with the largest team on record.
Which city has the most security firms?
Lisboa leads with 15 headquartered companies, followed by Vila Nova De Gaia (6) and Amadora (4).
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 253 verified decision-maker contacts tracked across these 115 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.