Company lists · Data refreshed September 2026

Top 25 Defense cybersecurity companies based in Brazil

Name: Defense cybersecurity companies based in Brazil
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 1, 2026 379 companies tracked

RevenueBase identified 379 company matches for defense cybersecurity companies associated with Brazil as of September 2026 and tracks 4,557 professional contacts across them, including 1,325 with verified work emails and 202 with mobile numbers. Sao Paulo is the largest hub.

This list covers company matches for defense cybersecurity companies associated with Brazil, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 1, 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 1, 2026 How this list was built

379Companies

4,557Contacts tracked

1,325Verified emails

202Mobile numbers

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The 25 largest defense cybersecurity companies based in Brazil

Ranked by team size

Top 25 of 379 company matches for defense cybersecurity companies based in Brazil, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 1, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Neosecure By SEK	Exact match	Sao Paulo, Brazil	501-1,000	416 contacts →
	Exact match “Con más de 20 años de experiencia, 750 colaboradores y una base de más de 650 clientes en la región, operamos en los mercados de Brasil, Chile, Argentina, Colombia y Perú, donde…” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
2	Safeway	Exact match	Rio De Janeiro, Brazil	201-500	397 contacts →
	Exact match “A SAFEWAY empresa que integra a plataforma de cibersegurança do Grupo Stefanini se une a Protega.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
3	Oplium	Exact match	Rio De Janeiro, Brazil	201-500	228 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
4	Redbelt Security	Exact match	Sao Paulo, Brazil	51-200	214 contacts →
	Exact match “O nosso trabalho é proteger o seu.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
5	CG ONE	Exact match	Sao Paulo, Brazil	51-200	119 contacts →
	Exact match “Somos a CG One, a evolução da marca Compugraf.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
6	Network Secure	Exact match	Fortaleza, Brazil	51-200	116 contacts →
	Exact match “Fundada em 2002, a Network Secure nasceu com uma missão clara: proteger empresas brasileiras contra riscos digitais.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
7	Foregenix	Exact match	Sao Paulo, Brazil	51-200	80 contacts →
	Exact match “When your business relies on security, compliance and a strong reputation for taking care of your customers, you need a partner that understands your ethos, your challenges and…” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
8	Altasnet	Exact match	Belo Horizonte, Brazil	51-200	71 contacts →
	Exact match “Somos referência no mercado nacional como integradora de soluções de TI em empresas privadas e governo.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
9	Bricon IT Solutions	Exact match	Sao Paulo, Brazil	51-200	57 contacts →
	Exact match “A Bricon é uma empresa de soluções para a área de Cyber Segurança e tecnologia da informação que atua orientada a viabilizar as estratégias de negócios de seus clientes…” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
10	Actar Peers Group	Exact match	Campinas, Brazil	51-200	55 contacts →
	Exact match “A ACTAR utiliza a criatividade e inteligência para transformar tecnologia em soluções de múltipla complexidade para Design de Redes e Segurança Digital.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
11	Dfense	Exact match	Sao Paulo, Brazil	51-200	55 contacts →
	Exact match “Segurança não é só blindagem, é confiança que acelera o negócio.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
12	RSEC	Exact match	Brasilia, Brazil	51-200	55 contacts →
	Exact match “Somos una compañía de consultoría especializada en Ciberseguridad, la cual provee asesoría, implementación y operación de los programas de Seguridad, que soportan la estrategia de…” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
13	Berghem	Exact match	Sao Paulo, Brazil	51-200	54 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
14	Cylk Technologing	Exact match	Sao Paulo, Brazil	51-200	49 contacts →
	Exact match “A CYLK Technologing se dedica àqueles profissionais e empresas que estão sempre se aperfeiçoando, que buscam soluções de TI criativas e inovadoras para reduzir custos, mitigar…” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
15	Itprotect Brasil	Exact match	Belem, Brazil	11-50	46 contacts →
	Exact match “A iTProtect oferece proteção cibernética de ponta, com soluções sob medida e atendimento próximo, garantindo o nível de segurança exato de segurança que as organizações precisam…” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
16	Next4sec Security Intelligence	Exact match	Sao Paulo, Brazil	51-200	43 contacts →
	Exact match “Cyber threats grow in an advanced and strategic way every day, resulting in great risks for businesses.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
17	BĒNCE	Exact match	Curitiba, Brazil	11-50	42 contacts →
	Exact match “As mudanças e a evolução da Tecnologia da Informação são constantes.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
18	Jc2sec	Exact match	Sao Paulo, Brazil	51-200	41 contacts →
	Exact match “HISTÓRIA A JC2SEC nasceu com a missão de prover soluções de segurança da informação para ambientes corporativos.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
19	UPX	Exact match	Campinas, Brazil	51-200	38 contacts →
	Exact match “UPX is an American technology company headquartered in the USA.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
20	Ibestsec Segurança DA Informação	Exact match	Barueri, Brazil	51-200	35 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
21	Qriar Technologies	Exact match	Sao Paulo, Brazil	11-50	34 contacts →
	Exact match “QRIAR is a cybersecurity company focused on enabling customers to connect people and devices to data and information in a practical and secure way.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
22	Pacific SEC	Exact match	Belo Horizonte, Brazil	51-200	34 contacts →
	Exact match “As Ameaças Cibernéticas afetam categoricamente todos os ramos de negócios no mundo.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
23	It4us Cyber Security	Exact match	Sao Paulo, Brazil	51-200	34 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
24	Safenet Tecnologia Ltda	Exact match	Rio De Janeiro, Brazil	51-200	29 contacts →
	Exact match “A Safenet Tecnologia é referência no mercado de segurança eletrônica.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
25	Focaldata	Exact match	Barueri, Brazil	11-50	27 contacts →
	Exact match “We are an innovative technology solutions company focused on cybersecurity.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “defense cybersecurity companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 379 defense cybersecurity companies based in Brazil

See the full list, filter by size, metro and specialty, and access 1,325 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Defense cybersecurity companies based in Brazil at a glance

As of Sep 1, 2026

29.1%Verified-email coverage

4.4%Mobile-number coverage

12.0Average contacts per company

11-50Median size (employees)

33.5%Largest-city concentration · Sao Paulo

Sep 1, 2026Page data refreshed

Companies by employee count

1-10

181

11-50

156

51-200

201-500

501-1,000

5,001-10,000

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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: Company records associated with Brazil whose business descriptions match “defense cybersecurity companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 1,325 professional contacts with verified work emails across the full matched dataset. 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 1, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Defense cybersecurity companies by metro

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “defense cybersecurity companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many defense cybersecurity companies are there based in Brazil?

RevenueBase identified 379 company matches for defense cybersecurity companies associated with Brazil as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Neosecure By SEK tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most defense cybersecurity companies?

Sao Paulo leads with 127 company records, followed by Rio De Janeiro (35) and Brasilia (17).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 1,325 professional contacts with verified work emails tracked across these 379 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 1, 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.