Company lists · Data refreshed September 2026

Top 25 Network security companies based in Brazil

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

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 347 companies tracked

RevenueBase identified 347 network security companies headquartered in Brazil as of September 2026 and tracks 4,908 professional contacts across them, including 1,429 with verified work emails and 204 with mobile numbers. Sao Paulo is the largest hub.

This list covers network security 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.

How to read this list HQ checked on every row Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review

347Companies

4,908Contacts tracked

1,429Verified emails

204Mobile numbers

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The 25 largest network security companies based in Brazil

Ranked by team size

Top 25 of 347 network security companies based in Brazil, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names network security companies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	SafewayIndirect evidence	Sao Paulo, BrazilHQ checked Sep 5, 2026	201-500	399
	“A SAFEWAY empresa que integra a plataforma de cibersegurança do Grupo Stefanini se une a Protega.” Source: company website · checked Sep 5, 2026
2	SEK Security Ecosystem KnowledgeIndirect evidence	Barueri, BrazilHQ checked Sep 5, 2026	501-1,000	394
	“Com mais de duas décadas de atuação e presença sólida no Brasil, Chile, Argentina, Colômbia e Peru, a SEK é referência em cibersegurança na América Latina.” Source: company website · checked Sep 5, 2026
3	OpliumPartial evidence	Sao Paulo, BrazilHQ checked Sep 5, 2026	201-500	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, 2026
4	Stefanini CyberPartial evidence	Sao Paulo, BrazilHQ checked Sep 5, 2026	501-1,000	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, 2026
5	Future TechnologiesPartial evidence	Petrópolis, BrazilHQ checked Sep 5, 2026	51-200	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, 2026
6	CG ONEIndirect evidence	São Paulo, BrazilHQ checked Sep 5, 2026	51-200	121
	“Somos a CG One, a evolução da marca Compugraf.” Source: company website · checked Sep 5, 2026
7	Network SecurePartial evidence	Fortaleza, BrazilHQ checked Sep 5, 2026	51-200	118
	“Fundada em 2002, a Network Secure nasceu com uma missão clara: proteger empresas brasileiras contra riscos digitais.” Source: company website · checked Sep 5, 2026
8	NetsecurityIndirect evidence	São Paulo, BrazilHQ checked Sep 5, 2026	51-200	108
	“Somos uma empresa especializada em Segurança da Informação, prestamos serviços especializados e comercializamos produtos de excelência desde o fim da década de 90, a fim de…” Source: company website · checked Sep 5, 2026
9	HackersecIndirect evidence	Barueri, BrazilHQ checked Sep 5, 2026	51-200	91
	“HackerSec is a Brazilian cybersecurity company, founded in 2011 and headquartered in São Paulo, Brazil.” Source: company website · checked Sep 5, 2026
10	EVALIndirect evidence	Sao Paulo, BrazilHQ checked Sep 5, 2026	51-200	89
	“Eval is a technology company that specializes in eletronica signatures, authentication, data protection and artificial intelligence.” Source: company website · checked Sep 5, 2026
11	BlockbitIndirect evidence	Sao Paulo, BrazilHQ checked Sep 5, 2026	51-200	80
	“A Blockbit é uma líder em soluções de cibersegurança, dedicada a proteger organizações de todos os tamanhos contra ameaças, vulnerabilidades e ataques, sejam internos ou externos…” Source: company website · checked Sep 5, 2026
12	OL TecnologiaPartial evidence	São Paulo, BrazilHQ checked Sep 5, 2026	51-200	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, 2026
13	Netsafe CorpIndirect evidence	Sao Paulo, BrazilHQ checked Sep 5, 2026	11-50	60
	“Com mais de 25 anos de mercado, a NetSafe Corp é especialista em segurança da informação.” Source: company website · checked Sep 5, 2026
14	Leadcomm SecurityPartial evidence	São Paulo, BrazilHQ checked Sep 5, 2026	51-200	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, 2026
15	DfenseIndirect evidence	São Paulo, BrazilHQ checked Sep 5, 2026	51-200	56
	“Segurança não é só blindagem, é confiança que acelera o negócio.” Source: company website · checked Sep 5, 2026
16	BerghemIndirect evidence	São Paulo, BrazilHQ checked Sep 5, 2026	51-200	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 5, 2026
17	ViwsecIndirect evidence	Barueri, BrazilHQ checked Sep 5, 2026	11-50	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, 2026
18	Cylk TechnologingIndirect evidence	São Paulo, BrazilHQ checked Sep 5, 2026	51-200	47
	“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…” Source: company website · checked Sep 5, 2026
19	I DOIndirect evidence	Rio De Janeiro, BrazilHQ checked Sep 5, 2026	11-50	47
	Source: company website · checked Sep 5, 2026
20	Novared BrasilIndirect evidence	São Paulo, BrazilHQ checked Sep 5, 2026	51-200	46
	“A NovaRed está escrevendo o futuro da cibersegurança!” Source: company website · checked Sep 5, 2026
21	BAITZIndirect evidence	Jaboticabal, BrazilHQ checked Sep 5, 2026	11-50	44
	“É com imenso prazer que apresentamos a Baitz, uma empresa de tecnologia com uma década de experiência.” Source: company website · checked Sep 5, 2026
22	Next4sec Security IntelligenceIndirect evidence	São Paulo, BrazilHQ checked Sep 5, 2026	51-200	44
	“Cyber threats grow in an advanced and strategic way every day, resulting in great risks for businesses.” Source: company website · checked Sep 5, 2026
23	BĒNCEIndirect evidence	Porto Alegre, BrazilHQ checked Sep 5, 2026	11-50	42
	“As mudanças e a evolução da Tecnologia da Informação são constantes.” Source: company website · checked Sep 5, 2026
24	Sentinela Security IntelligencePartial evidence	Porto Alegre, BrazilHQ checked Sep 5, 2026	11-50	42
	“A Sentinela Security é uma empresa gaúcha, fundada em 2004.” Source: company website · checked Sep 5, 2026
25	UPXIndirect evidence	Campinas, BrazilHQ checked Sep 5, 2026	51-200	40
	“UPX is an American technology company headquartered in the USA.” Source: company website · checked Sep 5, 2026

Showing 25 of 347 network security companies based in Brazil

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Network security companies based in Brazil at a glance

As of Sep 5, 2026

11-50Median size (employees)

Sao PauloLargest hub · 119 HQs

204Contacts with mobile numbers

Sep 5, 2026Data refreshed

Companies by employee count

1-10

170

11-50

134

51-200

201-500

501-1,000

5,001-10,000

Verified emails by last verification

0–30

1,325

31–60

61–90

90–180

180+

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 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 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 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, 1,429 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 companies by metro

Network security companies in Sao Paulo119

Frequently asked

How many network security companies are there based in Brazil?

RevenueBase identified 347 network security 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?

Safeway, headquartered in Sao Paulo, tops this list with the largest team on record.

Which city has the most network security companies?

Sao Paulo leads with 119 headquartered companies, followed by Rio De Janeiro (24) and Brasilia (14).

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 1,429 verified decision-maker contacts tracked across these 347 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.