Company lists · Data refreshed September 2026

Top 25 Network security installation contractors based in Brazil

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

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 772 companies tracked

RevenueBase identified 772 network security installation contractors headquartered in Brazil as of September 2026 and tracks 4,534 professional contacts across them, including 843 with verified work emails. Sao Paulo is the largest hub.

This list covers network security installation 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 29, 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 29, 2026 86% judged on-target in blind review

772Companies

4,534Contacts tracked

843Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest network security installation contractors based in Brazil

Ranked by team size

Top 25 of 772 network security installation contractors based in Brazil, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to network security installation 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	Stefanini Cyber	Partial evidence	Sao Paulo, BrazilHQ checked Sep 29, 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 29, 2026
2	Atgb Sistemas Integrados	Indirect evidence	Campinas, BrazilHQ checked Sep 29, 2026	201-500	145 contacts →
	Indirect evidence “Estruturada para atender em todo o território nacional, a ATGB Sistemas atua desde a etapa de projeto à implantação e manutenção de sistemas de Automação Predial, CFTV, Controle…” Source: RevenueBase Database · checked Sep 29, 2026
3	Veotex Sistemas Tecnológicos	Indirect evidence	Sp - Rj - Bh, BrazilHQ checked Sep 29, 2026	51-200	72 contacts →
	Indirect evidence “A VEOTEX é uma empresa nacional consolidada no setor de segurança há mais de 10 anos e temos como missão disponibilizar aos nossos clientes as melhores soluções integradas de…” Source: RevenueBase Database · checked Sep 29, 2026
4	OL Tecnologia	Partial evidence	São Paulo, BrazilHQ checked Sep 29, 2026	51-200	70 contacts →
	Partial evidence “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: RevenueBase Database · checked Sep 29, 2026
5	Scunna	Indirect evidence	Porto Alegre, BrazilHQ checked Sep 29, 2026	51-200	69 contacts →
	Indirect evidence “No mercado desde 1988, a Suportec começou sua atuação como prestadora de serviços de suporte técnico em mainframes.” Source: RevenueBase Database · checked Sep 29, 2026
6	9net IT Security	Indirect evidence	São Paulo, BrazilHQ checked Sep 29, 2026	51-200	61 contacts →
	Indirect evidence “Cuidamos da segurança e TI para que o foco e investimento de sua empresa estejam em seus negócios!” Source: RevenueBase Database · checked Sep 29, 2026
7	Netsafe Corp	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 29, 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 29, 2026
8	Xsite Segurança DA Informação	Indirect evidence	Salvador, BrazilHQ checked Sep 29, 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 29, 2026
9	Fasthelp Segurança DA Informação	Indirect evidence	Brasília, BrazilHQ checked Sep 29, 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 29, 2026
10	Trust Control	Indirect evidence	Fortaleza, BrazilHQ checked Sep 29, 2026	51-200	52 contacts →
	Indirect evidence “A Trust Control, empresa do Grupo Lanlink criada em 2009 com intuito de focar em soluções de segurança, iniciou suas atividades herdando um legado de uma equipe técnica e…” Source: RevenueBase Database · checked Sep 29, 2026
11	Parxtech	Indirect evidence	São Paulo, BrazilHQ checked Sep 29, 2026	51-200	52 contacts →
	Indirect evidence “Fundada em 1992 com o propósito de prover soluções nas áreas de Conectividade e Tecnologia da informação, uma empresa 100% nacional, com sede na cidade de São Paulo.” Source: RevenueBase Database · checked Sep 29, 2026
12	Niva Tecnologia DA Informação Ltda	Indirect evidence	Brasília, BrazilHQ checked Sep 29, 2026	51-200	51 contacts →
	Indirect evidence “A Niva Tecnologia da Informação é uma empresa integradora de soluções complexas no segmento de TI, sendo especializada em três vertentes: Segurança da Informação, Segurança…” Source: RevenueBase Database · checked Sep 29, 2026
13	GHT	Indirect evidence	Campinas, BrazilHQ checked Sep 29, 2026	n/a	50 contacts →
	Indirect evidence “A GHT Tecnologia é uma empresa especializada em Infraestrutura e segurança de redes para pequenas e médias empresas e conta com a experiência consolidada de seus colaboradores…” Source: RevenueBase Database · checked Sep 29, 2026
14	TDEC	Strong evidence	São Paulo, BrazilHQ checked Sep 29, 2026	51-200	49 contacts →
	Strong evidence “A TDec Network Group atua desde 1992 como um integrador de redes locais, remotas e wi-fi, com forte atuação na área de segurança de redes e Cyber Security.” Source: RevenueBase Database · checked Sep 29, 2026
15	Next4sec Security Intelligence	Indirect evidence	São Paulo, BrazilHQ checked Sep 29, 2026	51-200	44 contacts →
	Indirect evidence “Cyber threats grow in an advanced and strategic way every day, resulting in great risks for businesses.” Source: RevenueBase Database · checked Sep 29, 2026
16	Ostec Business Security	Partial evidence	Tubarão, BrazilHQ checked Sep 29, 2026	51-200	39 contacts →
	Partial evidence “At OSTEC we crave building solutions for modern information security challenges.” Source: RevenueBase Database · checked Sep 29, 2026
17	Gruppen IT Security	Indirect evidence	Porto Alegre, BrazilHQ checked Sep 29, 2026	51-200	38 contacts →
	Indirect evidence “A Gruppen oferece ao mercado as melhores soluções de segurança, dos mais renomados fabricantes globais.” Source: RevenueBase Database · checked Sep 29, 2026
18	Raidbr	Indirect evidence	Caxias Do Sul, BrazilHQ checked Sep 29, 2026	11-50	38 contacts →
	Indirect evidence “A Raidbr é uma empresa de Segurança Digital e Soluções de TI com +24 anos de experiência, focada em reduzir incidentes, paradas e risco operacional com um modelo de atuação…” Source: RevenueBase Database · checked Sep 29, 2026
19	Route Security	Indirect evidence	Votorantim, BrazilHQ checked Sep 29, 2026	11-50	34 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026
20	Full Service Soluções Completas EM Tecnologia	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 29, 2026	51-200	32 contacts →
	Indirect evidence “Empresa Especialistas em CyberSecurity.” Source: RevenueBase Database · checked Sep 29, 2026
21	A.R. Strium Solução EM Sistemas E Segurança Ltda	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 29, 2026	n/a	31 contacts →
	Indirect evidence “A.R.” Source: RevenueBase Database · checked Sep 29, 2026
22	Netlogic	Indirect evidence	São Paulo, BrazilHQ checked Sep 29, 2026	11-50	31 contacts →
	Indirect evidence “30 anos e muita tecnologia pela frente.” Source: RevenueBase Database · checked Sep 29, 2026
23	Protech360	Indirect evidence	Porto Alegre, BrazilHQ checked Sep 29, 2026	11-50	29 contacts →
	Indirect evidence “Com uma equipe altamente especializada e tecnologia confiável, a Protech desenvolve e implementa projetos nas áreas de Segurança Eletrônica que atendem a necessidades e exigências…” Source: RevenueBase Database · checked Sep 29, 2026
24	Safenet Tecnologia Ltda	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 29, 2026	51-200	29 contacts →
	Indirect evidence “A Safenet Tecnologia é referência no mercado de segurança eletrônica.” Source: RevenueBase Database · checked Sep 29, 2026
25	DMSYS	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 29, 2026	51-200	27 contacts →
	Indirect evidence “Para materializar boas ideias e fazer história, é preciso mais que competência, é preciso ter valores.” Source: RevenueBase Database · checked Sep 29, 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: network security installation 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 network security installation contractors.
Partial evidence: Its own public description names part of network security installation contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name network security installation 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 772 network security installation contractors based in Brazil

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 843 reachable decision-makers.

Free signup · no credit card

View the full list →

Network security installation contractors based in Brazil at a glance

As of Sep 29, 2026

18.6%Verified-email coverage

5.9Average contacts per company

1-10Median size (employees)

21.4%Largest-city concentration · Sao Paulo

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

508

11-50

208

51-200

201-500

501-1,000

10001+

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 772 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 network security installation 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 “network security installation 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 network security installation 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 network security installation 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, 843 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 29, 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 installation contractors 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 network security installation 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 network security installation contractors are there based in Brazil?

RevenueBase identified 772 network security installation 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?

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

Which city has the most network security installation contractors?

Sao Paulo leads with 165 headquartered companies, followed by Rio De Janeiro (62) and Curitiba (25).

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 843 verified decision-maker contacts tracked across these 772 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 29, 2026.

Ready to reach these companies? Verified emails and direct dials for all 772 network security installation contractors based in Brazil. Start with a free account, no credit card.

Download this list →

Related lists

Network security installation contractors by geography

Browse the directory

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.