Company lists · Data refreshed September 2026
Top 25 Network security monitoring companies based in Brazil
RevenueBase identified 261 network security monitoring companies headquartered in Brazil as of September 2026 and tracks 3,121 professional contacts across them, including 774 with verified work emails and 52 with mobile numbers. Sao Paulo is the largest hub.
This list covers network security monitoring companies 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 5, 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 network security monitoring companies based in Brazil
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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 5, 2026Thanks. The Data Team will review it. | |||||
| 2 | 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 5, 2026Thanks. The Data Team will review it. | |||||
| 3 | 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 5, 2026Thanks. The Data Team will review it. | |||||
| 4 | 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 5, 2026Thanks. The Data Team will review it. | |||||
| 5 | 119 | ||||
“Empresa de Segurança Eletrônica, Monitoramento, Rastreamento, Portaria Remota e facilites.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 6 | 118 | ||||
“Fundada em 2002, a Network Secure nasceu com uma missão clara: proteger empresas brasileiras contra riscos digitais.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 7 | 70 | ||||
“Com mais de duas décadas de atuação, a OL Tecnologia se consolida como líder em Segurança da Informação, Cloud Security e Monitoramento, oferecendo um portfólio robusto de…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 8 | 62 | ||||
“O seu parceiro ideal para garantir a segurança da sua jornada digital, a CPD vai além da simples prestação de serviços de Segurança da Informação e Infraestrutura.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 9 | 60 | ||||
“Com mais de 25 anos de mercado, a NetSafe Corp é especialista em segurança da informação.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 10 | 58 | ||||
“Leadcomm is a unique player in the Brazilian market, operating in the "One Stop Shop" format for Digital Security, offering a complete and leading range of solutions, products…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 11 | Telcomanager TechnologiesStrong evidence | 52 | |||
“Telcomanager is a company specialized in the development of network management and monitoring systems.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 12 | 51 | ||||
“A VIWSEC foi fundada em para proteção de serviços corporativos e de e-commerce no início da Internet empresarial no Brasil.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 13 | 44 | ||||
“Cyber threats grow in an advanced and strategic way every day, resulting in great risks for businesses.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 14 | 43 | ||||
“Fundada em 1998, a MD é uma empresa reconhecida no mercado por oferecer soluções mais eficientes em proteção de dados, cibersegurança, nuvem, infraestrutura, monitoramento e…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 15 | 42 | ||||
“As mudanças e a evolução da Tecnologia da Informação são constantes.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 16 | 42 | ||||
“A Sentinela Security é uma empresa gaúcha, fundada em 2004.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 17 | 38 | ||||
“A Gruppen oferece ao mercado as melhores soluções de segurança, dos mais renomados fabricantes globais.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 18 | 33 | ||||
“Com mais de 13 anos de trajetória, a You IT é referência nacional em infraestrutura de tecnologia segura e soluções avançadas de cibersegurança.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 19 | 32 | ||||
“Desde 2004, a Strema tem um compromisso claro: proteger empresas contra as ameaças digitais que evoluem todos os dias.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 20 | 32 | ||||
“Empresa consolidada em segurança da informação, atuando em projetos customizados de acordo com a necessidade do cliente, visando a prevenção de ameaças, otimizando performance e…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 21 | 32 | ||||
“A It4us Cyber Security atua no mercado corporativo e possui uma trajetória de Sucesso na monitoração ativa de nossos clientes, com seu profissionalismo, qualidade e principalmente…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 22 | 32 | ||||
“Empresa Especialistas em CyberSecurity.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 23 | NetlogicIndirect evidence | 31 | |||
“30 anos e muita tecnologia pela frente.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 24 | 25 | ||||
“A XLOGIC é a sua aliada em cibersegurança e oferece soluções completas e integradas - serviços, produtos e estratégia.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 25 | Protect SolutionsIndirect evidence | 24 | |||
“A Protect Solutions é uma Consultoria de Segurança da Informação que se destaca por prover Soluções em Segurança, Infraestrutura de Redes e Comunicação de TI.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 261 network security monitoring companies based in Brazil
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Network security monitoring companies based in Brazil at a glance
As of Sep 5, 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 network security monitoring 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 Brazil whose own description of what they do matches “network security monitoring 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 network security monitoring companies, 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, 774 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 5, 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.
Network security monitoring companies by metro
- Network security monitoring companies in Sao Paulo75
Frequently asked
How many network security monitoring companies are there based in Brazil?
RevenueBase identified 261 network security monitoring companies 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?
Oplium, headquartered in Rio De Janeiro, tops this list with the largest team on record.
Which city has the most network security monitoring companies?
Sao Paulo leads with 75 headquartered companies, followed by Rio De Janeiro (19) and Belo Horizonte (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 774 verified decision-maker contacts tracked across these 261 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 5, 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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