Company lists · Data refreshed September 2026
Top 25 Security research firms based in Brazil
RevenueBase identified 278 security research firms headquartered in Brazil as of September 2026 and tracks 3,308 professional contacts across them, including 820 with verified work emails and 50 with mobile numbers. Sao Paulo is the largest hub.
This list covers security research firms 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 research firms based in Brazil
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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. | |||||
| 2 | 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. | |||||
| 3 | 215 | ||||
“O nosso trabalho é proteger o seu.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 4 | 135 | ||||
“We are pioneers in offering digital solutions for forensics, digital forensic investigation, information security, anti-fraud and auditing for law enforcement, public security…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 5 | 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. | |||||
| 6 | 91 | ||||
“HackerSec is a Brazilian cybersecurity company, founded in 2011 and headquartered in São Paulo, Brazil.” Source: company website · checked Sep 6, 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 6, 2026Thanks. The Data Team will review it. | |||||
| 8 | 69 | ||||
“Conviso is an application security specialist and a reference in AppSec.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 9 | 53 | ||||
“Há mais de duas décadas, somos mais do que uma provedora de segurança cibernética, e sim a força estratégica na proteção de ambientes críticos e no aumento da maturidade em…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 10 | 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 6, 2026Thanks. The Data Team will review it. | |||||
| 11 | 48 | ||||
“Há mais de 30 anos no mercado de Consultoria em Segurança, o GRUPO UNICAD se tornou uma empresa referência no setor.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 12 | 44 | ||||
“Cyber threats grow in an advanced and strategic way every day, resulting in great risks for businesses.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 13 | 42 | ||||
“As mudanças e a evolução da Tecnologia da Informação são constantes.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 14 | 37 | ||||
“As Ameaças Cibernéticas afetam categoricamente todos os ramos de negócios no mundo.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 15 | 37 | ||||
“Há 13 anos a GuardCenter governa operações de proteção de cargas em todo o Brasil: conecta cada viagem a fornecedores homologados, coordena a execução em tempo real e devolve ao…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 16 | 32 | ||||
“We are a cybersecurity and privacy consultancy startup based in Brazil, leveraging over 30 years of our founder’s experience to deliver high-quality security and privacy…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 17 | 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 6, 2026Thanks. The Data Team will review it. | |||||
| 18 | 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 6, 2026Thanks. The Data Team will review it. | |||||
| 19 | 25 | ||||
“A XLOGIC é a sua aliada em cibersegurança e oferece soluções completas e integradas - serviços, produtos e estratégia.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 20 | 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 6, 2026Thanks. The Data Team will review it. | |||||
| 21 | 23 | ||||
“Há 20 anos na LDC Soluções, nossa missão é liderar o cenário da cibersegurança, oferecendo soluções inovadoras em Tecnologia de Segurança de Redes e Internet, Disponibilidade e…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 22 | 23 | ||||
“Consultoria de tecnologia especializada em cybersecurity, alinhada com as melhores práticas de segurança e performance, com um time de especialistas certificados para oferecer…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 23 | 21 | ||||
“Na era digital, a cibersegurança não é uma opção, é uma necessidade estratégica.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 24 | 20 | ||||
“Proteja seu negócio com segurança avançada.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 25 | 19 | ||||
“Altaica IT Services é uma consultoria especializada em segurança da informação.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 278 security research firms based in Brazil
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Security research firms 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 research 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 Brazil whose own description of what they do matches “security research 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 research firms, 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, 820 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 research firms by metro
- Security research firms in Sao Paulo101
Frequently asked
How many security research firms are there based in Brazil?
RevenueBase identified 278 security research firms 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?
Grupo SEI Segurança E Inteligência, headquartered in Serra, tops this list with the largest team on record.
Which city has the most security research firms?
Sao Paulo leads with 101 headquartered companies, followed by Rio De Janeiro (20) and Belo Horizonte (15).
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 820 verified decision-maker contacts tracked across these 278 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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