Company lists · Data refreshed September 2026

Top 25 Cybersecurity companies for communications based in Brazil

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

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 503 companies tracked

RevenueBase identified 503 cybersecurity companies for communications headquartered in Brazil as of September 2026 and tracks 6,576 professional contacts across them, including 1,723 with verified work emails. Sao Paulo is the largest hub.

This list covers cybersecurity companies for communications 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 28, 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 28, 2026 86% judged on-target in blind review

503Companies

6,576Contacts tracked

1,723Verified emails

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The 25 largest cybersecurity companies for communications based in Brazil

Ranked by team size

Top 25 of 503 cybersecurity companies for communications based in Brazil, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to cybersecurity companies for communications: 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	Dígitro Tecnologia	Indirect evidence	Florianópolis, BrazilHQ checked Sep 28, 2026	201-500	413 contacts →
	Indirect evidence “Dígitro started as a startup and has grown into a company with over 300 employees, clients, and operations throughout Brazil and Latin America.” Source: RevenueBase Database · checked Sep 28, 2026
2	Safeway	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 28, 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 28, 2026
3	Oplium	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 28, 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 28, 2026
4	Método Telecom	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 28, 2026	51-200	224 contacts →
	Indirect evidence “Com 35 anos de atuação, a Método Telecom consolidou uma trajetória marcada pela especialização em soluções de comunicação corporativa.” Source: RevenueBase Database · checked Sep 28, 2026
5	Redbelt Security	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 28, 2026	51-200	215 contacts →
	Indirect evidence “O nosso trabalho é proteger o seu.” Source: RevenueBase Database · checked Sep 28, 2026
6	Stefanini Cyber	Partial evidence	Sao Paulo, BrazilHQ checked Sep 28, 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 28, 2026
7	CG ONE	Indirect evidence	São Paulo, BrazilHQ checked Sep 28, 2026	51-200	121 contacts →
	Indirect evidence “Somos a CG One, a evolução da marca Compugraf.” Source: RevenueBase Database · checked Sep 28, 2026
8	Hackersec	Partial evidence	Barueri, BrazilHQ checked Sep 28, 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 28, 2026
9	EVAL	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 28, 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 28, 2026
10	Blockbit	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 28, 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 28, 2026
11	Altasnet	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 28, 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 28, 2026
12	Loomy Smart Solutions	Indirect evidence	Jundiaí, BrazilHQ checked Sep 28, 2026	51-200	63 contacts →
	Indirect evidence “Soluções Inteligentes em Segurança e Telecomunicações para empreendimentos.” Source: RevenueBase Database · checked Sep 28, 2026
13	Netsafe Corp	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 28, 2026	11-50	60 contacts →
	Indirect evidence “Com mais de 25 anos de mercado, a NetSafe Corp é especialista em segurança da informação.” Source: RevenueBase Database · checked Sep 28, 2026
14	Xsite Segurança DA Informação	Indirect evidence	Salvador, BrazilHQ checked Sep 28, 2026	51-200	60 contacts →
	Indirect evidence “A XSITE é uma empresa com mais de 20 anos de experiência na área de Segurança da Informação.” Source: RevenueBase Database · checked Sep 28, 2026
15	Leadcomm Security	Indirect evidence	São Paulo, BrazilHQ checked Sep 28, 2026	51-200	58 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 28, 2026
16	Fasthelp Segurança DA Informação	Indirect evidence	Brasília, BrazilHQ checked Sep 28, 2026	51-200	58 contacts →
	Indirect evidence “Fundada em 2003, com sede em Brasília/DF e presente em todo território nacional, a FastHelp oferece soluções líderes de mercado no segmento de Segurança da Informação e…” Source: RevenueBase Database · checked Sep 28, 2026
17	Dfense	Indirect evidence	São Paulo, BrazilHQ checked Sep 28, 2026	51-200	56 contacts →
	Indirect evidence “Segurança não é só blindagem, é confiança que acelera o negócio.” Source: RevenueBase Database · checked Sep 28, 2026
18	Actar Peers Group	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 28, 2026	51-200	55 contacts →
	Indirect evidence “A ACTAR utiliza a criatividade e inteligência para transformar tecnologia em soluções de múltipla complexidade para Design de Redes e Segurança Digital.” Source: RevenueBase Database · checked Sep 28, 2026
19	Berghem	Indirect evidence	São Paulo, BrazilHQ checked Sep 28, 2026	51-200	53 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 28, 2026
20	Viwsec	Indirect evidence	Barueri, BrazilHQ checked Sep 28, 2026	11-50	51 contacts →
	Indirect evidence “A VIWSEC foi fundada em para proteção de serviços corporativos e de e-commerce no início da Internet empresarial no Brasil.” Source: RevenueBase Database · checked Sep 28, 2026
21	M3corp	Indirect evidence	São Paulo, BrazilHQ checked Sep 28, 2026	51-200	48 contacts →
	Indirect evidence “A M3Corp é um distribuidor com qualidade em serviços e atendimento diferenciado.” Source: RevenueBase Database · checked Sep 28, 2026
22	Cylk Technologing	Indirect evidence	São Paulo, BrazilHQ checked Sep 28, 2026	51-200	47 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 28, 2026
23	Novared Brasil	Indirect evidence	São Paulo, BrazilHQ checked Sep 28, 2026	51-200	46 contacts →
	Indirect evidence “A NovaRed está escrevendo o futuro da cibersegurança!” Source: RevenueBase Database · checked Sep 28, 2026
24	Dinamo Networks	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 28, 2026	11-50	45 contacts →
	Indirect evidence “Uma marca forte, com a única missão de proteger sua empresa sempre.” Source: RevenueBase Database · checked Sep 28, 2026
25	BAITZ	Indirect evidence	Jaboticabal, BrazilHQ checked Sep 28, 2026	11-50	44 contacts →
	Indirect evidence “É com imenso prazer que apresentamos a Baitz, uma empresa de tecnologia com uma década de experiência.” Source: RevenueBase Database · checked Sep 28, 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 companies for communications. 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 companies for communications.
Partial evidence: Its own public description names part of cybersecurity companies for communications, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name cybersecurity companies for communications. 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 503 cybersecurity companies for communications based in Brazil

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Cybersecurity companies for communications based in Brazil at a glance

As of Sep 28, 2026

26.2%Verified-email coverage

13.1Average contacts per company

1-10Median size (employees)

28.4%Largest-city concentration · Sao Paulo

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

253

11-50

190

51-200

201-500

501-1,000

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 503 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 companies for communications, 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 companies for communications”. 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 companies for communications), 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 companies for communications, 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, 1,723 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 28, 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 companies for communications by metro

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 companies for communications, 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 companies for communications are there based in Brazil?

RevenueBase identified 503 cybersecurity companies for communications 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?

Dígitro Tecnologia, headquartered in Florianopolis, tops this list with the largest team on record.

Which city has the most cybersecurity companies for communications?

Sao Paulo leads with 143 headquartered companies, followed by Rio De Janeiro (44) and Brasilia (23).

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 1,723 verified decision-maker contacts tracked across these 503 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 28, 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.