Company lists · Data refreshed September 2026
Top 25 Security monitoring services based in Brazil
RevenueBase identified 1,375 security monitoring services headquartered in Brazil as of September 2026 and tracks 23,580 professional contacts across them, including 1,867 with verified work emails and 299 with mobile numbers. Sao Paulo is the largest hub.
This list covers security monitoring services headquartered in Brazil, 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 security monitoring services based in Brazil
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,331 | ||||
“A Embrasil é especializada em oferecer serviços garantindos de segurança patrimonial para diversos seguimentos do mercado: bancos, indústrias, escolas, redes de varejo, comércios…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 2 | 617 | ||||
“O Grupo Khronos é referência nacional em soluções integradas de segurança, tecnologia e IoT.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 3 | 607 | ||||
“O grupo Anjos da Guarda iniciou atividades na década de 80.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 4 | 563 | ||||
“Empresa especializada em soluções personalizadas de Segurança Privada, contando com serviços de Vigilância Patrimonial, Segurança Pessoal e Segurança Eletrônica.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 5 | 399 | ||||
“A SAFEWAY empresa que integra a plataforma de cibersegurança do Grupo Stefanini se une a Protega.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 6 | 321 | ||||
“A empresa oferece profissionais qualificados para diversas funções, entre elas, portaria e/ou controlador de acesso, auxiliar de serviços gerais, zeladoria, atendente, auxiliar…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 7 | 285 | ||||
“Grupo SEI - is a facilities services company based out of Brazil.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 8 | 230 | ||||
“We are a young company, founded in 2019 in Brazil, with the aim of bringing an innovative approach to the information security market, with state-of-the-art proprietary and…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 9 | 215 | ||||
“O nosso trabalho é proteger o seu.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 10 | Vectra Consultoria E ServiçosIndirect evidence | 208 | |||
“Para descomplicar a vida de nossos clientes precisamos de profissionais altamente capacitados e com muita vontade de fazer a diferença.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 11 | 207 | ||||
“Há mais de 15 anos no mercado, a Nexus Vigilância está presente em mais de 600 cidades, distribuídas entre os estados de Minas Gerais, Rio de Janeiro, São Paulo e Espírito Santo…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 12 | Stefanini CyberPartial evidence | 206 | |||
“Leader in Managed Security Services, recognized by ISG Provider Lens, and an integral part of the cybersecurity ecosystem of the Stefanini Group.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 13 | 171 | ||||
“Referência nacional em gestão e tecnologia de segurança, a AutoDefesa Brasil Atua com uma abordagem 360°, oferecendo soluções inovadoras que vão desde a concepção até a…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 14 | Alforge Seguranca PatrimonialPartial evidence | 165 | |||
“Alforge Seguranca Patrimonial is a security and investigations company based out of Rua Jonatas de Vasconcelos 60, Recife, Pernambuco, Brazil.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 15 | 158 | ||||
“Future has been active in the information security market since 1997, bringing confidentiality, integrity, availability and compliance to our customers.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 16 | 141 | ||||
“O GrupoSEG é uma empresa pernambucana líder no mercado de vigilância eletrônica, com sede no Recife-PE e filiais no interior do Estado e nas capitais do Nordeste.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 17 | 132 | ||||
“Há 27 anos no mercado, o Grupo Dimensão vem trabalhando e se aperfeiçoando para oferecer as melhores soluções em serviços tais como; Administração de Condomínios, Sistemas de…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 18 | 127 | ||||
“Inspirar confiança é a meta que guia todas as nossas ações.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 19 | 120 | ||||
“A Sekron Digital é uma das principais empresas de segurança eletrônica e monitoramento corporativo do Brasil, com atuação nacional e mais de 30 anos de experiência na proteção de…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 20 | 119 | ||||
“Empresa de Segurança Eletrônica, Monitoramento, Rastreamento, Portaria Remota e facilites.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 21 | 118 | ||||
“Fundada em 2002, a Network Secure nasceu com uma missão clara: proteger empresas brasileiras contra riscos digitais.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 22 | Grupo Força TarefaIndirect evidence | 114 | |||
“O Grupo Força Tarefa desenvolve soluções personalizadas de segurança patrimonial, atuando com os serviços de vigilância armada, portaria, portaria virtual e monitoramento de…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 23 | 110 | ||||
“A company specialized in Property Surveillance, Electronic Monitoring, Risk Analysis, Security Projects, and Facilities Services for a wide range of institutions, commercial…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 24 | 93 | ||||
“A High Link é uma empresa de segurança especializada em sistemas eletrônicos integrados.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 25 | Intersept-Porteiros Vigilantes Limpeza E ConservacaoIndirect evidence | 92 | |||
Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 1,375 security monitoring services based in Brazil
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Security monitoring services based in Brazil 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 monitoring services, 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 Brazil whose own description of what they do matches “security monitoring services”. 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 monitoring services, and records with no verified work email. Companies headquartered outside Brazil 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, 1,867 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.
Security monitoring services by metro
- Security monitoring services in Sao Paulo276
- Security monitoring services in Rio De Janeiro76
- Security monitoring services in Curitiba47
- Security monitoring services in Belo Horizonte44
- Security monitoring services in Porto Alegre34
- Security monitoring services in Campinas28
Frequently asked
How many security monitoring services are there based in Brazil?
RevenueBase identified 1,375 security monitoring services headquartered in Brazil 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?
Embrasil Segurança E Serviços, headquartered in Curitiba, tops this list with the largest team on record.
Which city has the most security monitoring services?
Sao Paulo leads with 276 headquartered companies, followed by Rio De Janeiro (76) and Curitiba (47).
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 1,867 verified decision-maker contacts tracked across these 1,375 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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