Company lists · Data refreshed September 2026

Top 25 Cybersecurity contractors based in Brazil

Name: Cybersecurity contractors based in Brazil
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 1,044 companies tracked

RevenueBase identified 1,044 cybersecurity contractors headquartered in Brazil as of September 2026 and tracks 13,431 professional contacts across them, including 3,234 with verified work emails. Sao Paulo is the largest hub.

This list covers cybersecurity contractors 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 21, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 RevenueBase Smart Search rating on every row Refreshed Sep 21, 2026 86% judged on-target in blind review

1,044Companies

13,431Contacts tracked

3,234Verified emails

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The 25 largest cybersecurity contractors based in Brazil

Ranked by team size

Top 25 of 1,044 cybersecurity contractors based in Brazil, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to cybersecurity contractors: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Safeway	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 21, 2026	201-500	399 contacts →
	Indirect evidence “A SAFEWAY empresa que integra a plataforma de cibersegurança do Grupo Stefanini se une a Protega.” Source: RevenueBase Database · checked Sep 21, 2026
2	SEK Security Ecosystem Knowledge	Indirect evidence	Barueri, BrazilHQ checked Sep 21, 2026	501-1,000	394 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 21, 2026
3	ASPER	Indirect evidence	São Paulo, BrazilHQ checked Sep 21, 2026	201-500	329 contacts →
	Indirect evidence “A Asper é a principal MSSP do Brasil e a empresa de Cibersegurança que mais cresce no país atualmente.” Source: RevenueBase Database · checked Sep 21, 2026
4	Grupo SEI Segurança E Inteligência	Indirect evidence	Serra, BrazilHQ checked Sep 21, 2026	1,001-5,000	285 contacts →
	Indirect evidence “Grupo SEI - is a facilities services company based out of Brazil.” Source: RevenueBase Database · checked Sep 21, 2026
5	SOLOR	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 21, 2026	201-500	260 contacts →
	Indirect evidence “A Solor protege, opera e evolui ambientes críticos com inteligência e automação.” Source: RevenueBase Database · checked Sep 21, 2026
6	Oplium	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 21, 2026	201-500	230 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 21, 2026
7	Redbelt Security	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 21, 2026	51-200	215 contacts →
	Indirect evidence “O nosso trabalho é proteger o seu.” Source: RevenueBase Database · checked Sep 21, 2026
8	Stefanini Cyber	Partial evidence	Sao Paulo, BrazilHQ checked Sep 21, 2026	501-1,000	206 contacts →
	Partial evidence “Leader in Managed Security Services, recognized by ISG Provider Lens, and an integral part of the cybersecurity ecosystem of the Stefanini Group.” Source: RevenueBase Database · checked Sep 21, 2026
9	Agility	Indirect evidence	São Paulo, BrazilHQ checked Sep 21, 2026	51-200	189 contacts →
	Indirect evidence “Oferecemos soluções avançadas em Infraestrutura de TI, Cibersegurança e Inteligência Artificial, projetadas para ambientes de missão crítica e alta complexidade tecnológica.” Source: RevenueBase Database · checked Sep 21, 2026
10	SCSEG	Indirect evidence	Palhoça, BrazilHQ checked Sep 21, 2026	51-200	148 contacts →
	Indirect evidence “Com 19 anos de atuação no mercado brasileiro, o Grupo SCSEG se orgulha em ser referência nos segmentos de Segurança Humana e Eletrônica, além da Terceirização de Serviços…” Source: RevenueBase Database · checked Sep 21, 2026
11	Under Protection	Indirect evidence	Pinhais - Alphaville, BrazilHQ checked Sep 21, 2026	51-200	127 contacts →
	Indirect evidence “Inspirar confiança é a meta que guia todas as nossas ações.” Source: RevenueBase Database · checked Sep 21, 2026
12	CG ONE	Indirect evidence	São Paulo, BrazilHQ checked Sep 21, 2026	51-200	121 contacts →
	Indirect evidence “Somos a CG One, a evolução da marca Compugraf.” Source: RevenueBase Database · checked Sep 21, 2026
13	NTS - Segurança	Indirect evidence	Natal, BrazilHQ checked Sep 21, 2026	201-500	119 contacts →
	Indirect evidence “Empresa de Segurança Eletrônica, Monitoramento, Rastreamento, Portaria Remota e facilites.” Source: RevenueBase Database · checked Sep 21, 2026
14	Network Secure	Indirect evidence	Fortaleza, BrazilHQ checked Sep 21, 2026	51-200	118 contacts →
	Indirect evidence “Fundada em 2002, a Network Secure nasceu com uma missão clara: proteger empresas brasileiras contra riscos digitais.” Source: RevenueBase Database · checked Sep 21, 2026
15	Strati	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 21, 2026	51-200	113 contacts →
	Indirect evidence “Somos o integrador estratégico que empresas de médio porte escolhem para simplificar a gestão de TI e proteger o negócio com infraestrutura gerenciada, segurança cibernética e…” Source: RevenueBase Database · checked Sep 21, 2026
16	Netsecurity	Indirect evidence	São Paulo, BrazilHQ checked Sep 21, 2026	51-200	108 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 21, 2026
17	Inorpel Cybersecurity	Partial evidence	Cabedelo, BrazilHQ checked Sep 21, 2026	51-200	104 contacts →
	Partial evidence “A Inorpel CyberSecurity é uma empresa brasileira especializada em soluções integradas de cibersegurança, com sólida trajetória no setor de tecnologia e foco na proteção de ativos…” Source: RevenueBase Database · checked Sep 21, 2026
18	Hackersec	Partial evidence	Barueri, BrazilHQ checked Sep 21, 2026	51-200	91 contacts →
	Partial evidence “HackerSec is a Brazilian cybersecurity company, founded in 2011 and headquartered in São Paulo, Brazil.” Source: RevenueBase Database · checked Sep 21, 2026
19	Alleasy	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 21, 2026	51-200	90 contacts →
	Indirect evidence “Presente no mercado desde 1995, a Alleasy oferece nacionalmente serviços especializados em Segurança de Tecnologia da Informação, além de Alocação de Recursos e Hunting para a…” Source: RevenueBase Database · checked Sep 21, 2026
20	EVAL	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 21, 2026	51-200	89 contacts →
	Indirect evidence “Eval is a technology company that specializes in eletronica signatures, authentication, data protection and artificial intelligence.” Source: RevenueBase Database · checked Sep 21, 2026
21	Blockbit	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 21, 2026	51-200	80 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 21, 2026
22	Securityfirst	Indirect evidence	São Paulo, BrazilHQ checked Sep 21, 2026	51-200	79 contacts →
	Indirect evidence “Consultoria especializada em:_Cybersecurity O SOC mais inovador do Brasil!” Source: RevenueBase Database · checked Sep 21, 2026
23	Alert System	Indirect evidence	Santo Amaro, BrazilHQ checked Sep 21, 2026	51-200	71 contacts →
	Indirect evidence “Fundada em a Alert é uma empresa de tecnologia da segurança que oferece soluções completas, personalizadas e de última geração capazes de aumentar a proteção em indústrias…” Source: RevenueBase Database · checked Sep 21, 2026
24	Altasnet	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 21, 2026	51-200	71 contacts →
	Indirect evidence “Somos referência no mercado nacional como integradora de soluções de TI em empresas privadas e governo.” Source: RevenueBase Database · checked Sep 21, 2026
25	TI Safe Segurança Cibernética	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 21, 2026	11-50	70 contacts →
	Indirect evidence “A TI Safe é referência nacional em segurança cibernética para infraestruturas críticas, com foco em Sistemas Ciberfísicos (CPS).” Source: RevenueBase Database · checked Sep 21, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: cybersecurity contractors. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names cybersecurity contractors.
Partial evidence: Its own public description names part of cybersecurity contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name cybersecurity contractors. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 1,044 cybersecurity contractors based in Brazil

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Cybersecurity contractors based in Brazil at a glance

As of Sep 21, 2026

24.1%Verified-email coverage

12.9Average contacts per company

1-10Median size (employees)

31.7%Largest-city concentration · Sao Paulo

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

547

11-50

369

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

Email recency for this list is measured worldwide rather than for Brazil, so it is reported there. Company counts and contact totals on this page are exact for Brazil, over 1,044 companies.

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 cybersecurity contractors, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search 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 Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Brazil whose own description of what they do matches “cybersecurity contractors”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names cybersecurity contractors), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among cybersecurity contractors, 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 its RevenueBase Smart Search 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, 3,234 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 21, 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.

Cybersecurity contractors by metro

Cybersecurity contractors in Sao Paulo331
Cybersecurity contractors in Rio De Janeiro77
Cybersecurity contractors in Belo Horizonte40
Cybersecurity contractors in Brasilia37
Cybersecurity contractors in Curitiba29
Cybersecurity contractors in Barueri27

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names cybersecurity contractors, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many cybersecurity contractors are there based in Brazil?

RevenueBase identified 1,044 cybersecurity contractors 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 cybersecurity contractors?

Sao Paulo leads with 331 headquartered companies, followed by Rio De Janeiro (77) and Belo Horizonte (40).

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 3,234 verified decision-maker contacts tracked across these 1,044 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 21, 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 Smart Search, 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.