Company lists · Data refreshed September 2026
Top 25 Critical infrastructure security services based in Brazil
RevenueBase identified 479 company matches for critical infrastructure security services associated with Brazil as of September 2026 and tracks 9,428 professional contacts across them, including 1,431 with verified work emails. Sao Paulo is the largest hub.
This list covers company matches for critical infrastructure security services 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 27, 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.
The 25 largest critical infrastructure security services based in Brazil
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,361 contacts → | ||||
Exact match “O Grupo Comando G8 é referência nacional na implantação e operação de soluções integradas em segurança e serviços.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 2 | 399 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 27, 2026 · View company records in RevenueBase | |||||
| 3 | 304 contacts → | ||||
Exact match “Há mais de 25 anos no mercado, com atuação nacional e com uma estrutura moderna, o Grupo Liberdade tem se destacado na execução de serviços de segurança que não se limitam a…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 4 | 285 contacts → | ||||
Exact match “Grupo SEI - is a facilities services company based out of Brazil.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 5 | 230 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 27, 2026 · View company records in RevenueBase | |||||
| 6 | 215 contacts → | ||||
Exact match “O nosso trabalho é proteger o seu.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 7 | 206 contacts → | ||||
Exact match “Leader in Managed Security Services, recognized by ISG Provider Lens, and an integral part of the cybersecurity ecosystem of the Stefanini Group.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 8 | 189 contacts → | ||||
Exact match “Oferecemos soluções avançadas em Infraestrutura de TI, Cibersegurança e Inteligência Artificial, projetadas para ambientes de missão crítica e alta complexidade tecnológica.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 9 | 171 contacts → | ||||
Exact match “Referência nacional em gestão e tecnologia de segurança, a AutoDefesa Brasil Atua com uma abordagem 360°, oferecendo soluções inovadoras que vão desde a concepção até a…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 10 | 158 contacts → | ||||
Exact match “Future has been active in the information security market since 1997, bringing confidentiality, integrity, availability and compliance to our customers.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 11 | 148 contacts → | ||||
Exact match “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…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 12 | 127 contacts → | ||||
Exact match “Inspirar confiança é a meta que guia todas as nossas ações.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 13 | 120 contacts → | ||||
Exact match “Aeon Security is a technology integrator, project developer and service provider for the critical infrastructure industries.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 14 | 120 contacts → | ||||
Exact match “A Sekron Digital é uma das principais empresas de segurança eletrônica e monitoramento corporativo do Brasil, com atuação nacional e mais de 30 anos de experiência na proteção de…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 15 | 106 contacts → | ||||
Exact match “A ICTS Security é reconhecida a quase 3 décadas pela excelência em consultoria de serviços de inteligência e segurança.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 16 | 71 contacts → | ||||
Exact match “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…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 17 | 70 contacts → | ||||
Exact match “A TI Safe é referência nacional em segurança cibernética para infraestruturas críticas, com foco em Sistemas Ciberfísicos (CPS).” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 18 | 70 contacts → | ||||
Exact match “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…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 19 | 69 contacts → | ||||
Exact match “No mercado desde 1988, a Suportec começou sua atuação como prestadora de serviços de suporte técnico em mainframes.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 20 | 66 contacts → | ||||
Exact match “A QOS é especialista em Gestão de Riscos Cibernéticos e Conscientização de Segurança.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 21 | 62 contacts → | ||||
Exact match “O seu parceiro ideal para garantir a segurança da sua jornada digital, a CPD vai além da simples prestação de serviços de Segurança da Informação e Infraestrutura.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 22 | 61 contacts → | ||||
Exact match “Cuidamos da segurança e TI para que o foco e investimento de sua empresa estejam em seus negócios!” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 23 | 61 contacts → | ||||
Exact match “Desde sua fundação em 1987 a GS se especializou em Sistemas de Segurança.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 24 | 59 contacts → | ||||
Exact match “Empresa sólida com ampla experiência em Infraestrutura em TI e Comunicações, Segurança da Informação e Segurança física.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 25 | 58 contacts → | ||||
Exact match “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…” Recorded in the RevenueBase company graph · Sep 27, 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 “critical infrastructure security services”. 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 479 critical infrastructure security services based in Brazil
See the full list, filter by size, metro and specialty, and access 1,431 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Critical infrastructure security services based in Brazil at a glance
As of Sep 27, 2026Companies by employee count
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 479 companies.
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 “critical infrastructure security services” 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 1,431 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 27, 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.
Critical infrastructure security services 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 “critical infrastructure security services”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many critical infrastructure security services are there based in Brazil?
RevenueBase identified 479 company matches for critical infrastructure security services 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?
Comando G8 tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most critical infrastructure security services?
Sao Paulo leads with 155 company records, followed by Rio De Janeiro (45) and Brasilia (15).
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 1,431 professional contacts with verified work emails tracked across these 479 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 27, 2026.
Ready to reach these companies? Verified emails and direct dials for all 479 critical infrastructure security services based in Brazil. Start with a free account, no credit card.
Download this list →Related lists
Critical infrastructure security services by geography
- Critical infrastructure security services based in Brisbane, Australia
- Critical infrastructure security services based in Melbourne, Australia
- Critical infrastructure security services based in Sydney, Australia
- Critical infrastructure security services based in Rio De Janeiro, Brazil
- Critical infrastructure security services based in Sao Paulo, Brazil
- Critical infrastructure security services based in Calgary, Canada
- Critical infrastructure security services based in Montreal, Canada
- Critical infrastructure security services based in Ottawa, Canada
- Critical infrastructure security services based in Toronto, Canada
- Critical infrastructure security services based in Santiago, Chile
- Critical infrastructure security services based in Paris, France
- Critical infrastructure security services based in Berlin, Germany
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.
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- Critical infrastructure security services based in Brisbane, Australia
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Company intelligence · public preview
Top 25 critical infrastructure security services based in Brazil
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 479 matching company records for critical infrastructure security services based in Brazil, with 9,428 tracked contacts and 1,431 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 27, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 critical infrastructure security services based in Brazil
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Comando G8comandog8.com.brHQ: São Paulo, BrazilReported employees: 5,001-10,000 | São Paulo, Brazil | 5,001-10,000 | Exact match | 1,361 contacts → |
“O Grupo Comando G8 é referência nacional na implantação e operação de soluções integradas em segurança e serviços.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Safewaysafewayconsultoria.comHQ: Sao Paulo, BrazilReported employees: 201-500 | Sao Paulo, Brazil | 201-500 | Exact match | 399 contacts → |
“A SAFEWAY empresa que integra a plataforma de cibersegurança do Grupo Stefanini se une a Protega.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Grupo Liberdadegrupoliberdade.com.brHQ: São Paulo, BrazilReported employees: 1,001-5,000 | São Paulo, Brazil | 1,001-5,000 | Exact match | 304 contacts → |
“Há mais de 25 anos no mercado, com atuação nacional e com uma estrutura moderna, o Grupo Liberdade tem se destacado na execução de serviços de segurança que não se limitam a…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Grupo SEI Segurança E Inteligênciaseiinteligencia.com.brHQ: Serra, BrazilReported employees: 1,001-5,000 | Serra, Brazil | 1,001-5,000 | Exact match | 285 contacts → |
“Grupo SEI - is a facilities services company based out of Brazil.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Opliumoplium.comHQ: Sao Paulo, BrazilReported employees: 201-500 | Sao Paulo, Brazil | 201-500 | Exact match | 230 contacts → |
“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 description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Redbelt Securityredbelt.com.brHQ: Sao Paulo, BrazilReported employees: 51-200 | Sao Paulo, Brazil | 51-200 | Exact match | 215 contacts → |
“O nosso trabalho é proteger o seu.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Stefanini Cyberstefaninicyber.comHQ: Sao Paulo, BrazilReported employees: 501-1,000 | Sao Paulo, Brazil | 501-1,000 | Exact match | 206 contacts → |
“Leader in Managed Security Services, recognized by ISG Provider Lens, and an integral part of the cybersecurity ecosystem of the Stefanini Group.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Agilitysomosagility.com.brHQ: São Paulo, BrazilReported employees: 51-200 | São Paulo, Brazil | 51-200 | Exact match | 189 contacts → |
“Oferecemos soluções avançadas em Infraestrutura de TI, Cibersegurança e Inteligência Artificial, projetadas para ambientes de missão crítica e alta complexidade tecnológica.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Autodefesa Brasilautodefesabrasil.com.brHQ: Campinas, BrazilReported employees: 201-500 | Campinas, Brazil | 201-500 | Exact match | 171 contacts → |
“Referência nacional em gestão e tecnologia de segurança, a AutoDefesa Brasil Atua com uma abordagem 360°, oferecendo soluções inovadoras que vão desde a concepção até a…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Future Technologiesfuture.com.brHQ: Petrópolis, BrazilReported employees: 51-200 | Petrópolis, Brazil | 51-200 | Exact match | 158 contacts → |
“Future has been active in the information security market since 1997, bringing confidentiality, integrity, availability and compliance to our customers.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  SCSEGscseg.com.brHQ: Palhoça, BrazilReported employees: 51-200 | Palhoça, Brazil | 51-200 | Exact match | 148 contacts → |
“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…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Under Protectionunderprotection.com.brHQ: Pinhais - Alphaville, BrazilReported employees: 51-200 | Pinhais - Alphaville, Brazil | 51-200 | Exact match | 127 contacts → |
“Inspirar confiança é a meta que guia todas as nossas ações.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Aeon Securityaeon.com.brHQ: Niterói, BrazilReported employees: 51-200 | Niterói, Brazil | 51-200 | Exact match | 120 contacts → |
“Aeon Security is a technology integrator, project developer and service provider for the critical infrastructure industries.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Sekron Digital Brasilsekrondigital.com.brHQ: Sao Paulo, BrazilReported employees: 51-200 | Sao Paulo, Brazil | 51-200 | Exact match | 120 contacts → |
“A Sekron Digital é uma das principais empresas de segurança eletrônica e monitoramento corporativo do Brasil, com atuação nacional e mais de 30 anos de experiência na proteção de…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Icts Securityictssecurity.com.br HQ: Sao Paulo, BrazilReported employees: 51-200 | Sao Paulo, Brazil | 51-200 | Exact match | 106 contacts → |
“A ICTS Security é reconhecida a quase 3 décadas pela excelência em consultoria de serviços de inteligência e segurança.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Alert Systemalertsystem.com.brHQ: Santo Amaro, BrazilReported employees: 51-200 | Santo Amaro, Brazil | 51-200 | Exact match | 71 contacts → |
“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…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  TI Safe Segurança Cibernéticatisafe.comHQ: Rio De Janeiro, BrazilReported employees: 11-50 | Rio De Janeiro, Brazil | 11-50 | Exact match | 70 contacts → |
“A TI Safe é referência nacional em segurança cibernética para infraestruturas críticas, com foco em Sistemas Ciberfísicos (CPS).” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  OL Tecnologiaol-tecnologia.com.brHQ: São Paulo, BrazilReported employees: 51-200 | São Paulo, Brazil | 51-200 | Exact match | 70 contacts → |
“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…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Scunnascunna.comHQ: Porto Alegre, BrazilReported employees: 51-200 | Porto Alegre, Brazil | 51-200 | Exact match | 69 contacts → |
“No mercado desde 1988, a Suportec começou sua atuação como prestadora de serviços de suporte técnico em mainframes.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  QOS Tecnologiaqostecnologia.com.brHQ: Recife, BrazilReported employees: 11-50 | Recife, Brazil | 11-50 | Exact match | 66 contacts → |
“A QOS é especialista em Gestão de Riscos Cibernéticos e Conscientização de Segurança.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  CPDcpd.com.brHQ: Brasília, BrazilReported employees: 51-200 | Brasília, Brazil | 51-200 | Exact match | 62 contacts → |
“O seu parceiro ideal para garantir a segurança da sua jornada digital, a CPD vai além da simples prestação de serviços de Segurança da Informação e Infraestrutura.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  9net IT Security9net.com.brHQ: São Paulo, BrazilReported employees: 51-200 | São Paulo, Brazil | 51-200 | Exact match | 61 contacts → |
“Cuidamos da segurança e TI para que o foco e investimento de sua empresa estejam em seus negócios!” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Golden Servicegservice.com.brHQ: Teresópolis, BrazilReported employees: 51-200 | Teresópolis, Brazil | 51-200 | Exact match | 61 contacts → |
“Desde sua fundação em 1987 a GS se especializou em Sistemas de Segurança.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Arcade Tecnologiaarcade.com.brHQ: Brasília, BrazilReported employees: 51-200 | Brasília, Brazil | 51-200 | Exact match | 59 contacts → |
“Empresa sólida com ampla experiência em Infraestrutura em TI e Comunicações, Segurança da Informação e Segurança física.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Fasthelp Segurança DA Informaçãofasthelp.com.brHQ: Brasília, BrazilReported employees: 51-200 | Brasília, Brazil | 51-200 | Exact match | 58 contacts → |
“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…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 479 company matches
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Critical infrastructure security services: dataset insights
September 27, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
478 records in the displayed employee bands.
1 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 479 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 27, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Critical infrastructure security services by metro
Questions about this company list
What does Exact match mean for critical infrastructure security services?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many critical infrastructure security services did RevenueBase find based in Brazil?
The saved snapshot records 479 matching company records, 9,428 tracked contacts and 1,431 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 27, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Critical infrastructure security services by geography
- Critical infrastructure security services based in Brisbane, Australia
- Critical infrastructure security services based in Melbourne, Australia
- Critical infrastructure security services based in Sydney, Australia
- Critical infrastructure security services based in Rio De Janeiro, Brazil
- Critical infrastructure security services based in Sao Paulo, Brazil
- Critical infrastructure security services based in Calgary, Canada
- Critical infrastructure security services based in Montreal, Canada
- Critical infrastructure security services based in Ottawa, Canada
- Critical infrastructure security services based in Toronto, Canada
- Critical infrastructure security services based in Santiago, Chile
- Critical infrastructure security services based in Paris, France
- Critical infrastructure security services based in Berlin, Germany
Cite this list
RevenueBase Data Team. Top 25 critical infrastructure security services based in Brazil. Snapshot: September 27, 2026. https://revenuebase.ai/companies/critical-infrastructure-security-services/brazil.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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- Critical infrastructure security services based in Brisbane, Australia
- Critical infrastructure security services based in Melbourne, Australia
- Critical infrastructure security services based in Sydney, Australia
- Critical infrastructure security services based in Rio De Janeiro, Brazil
- Critical infrastructure security services based in Sao Paulo, Brazil
- Critical infrastructure security services based in Calgary, Canada
Company intelligence · public preview
Top 25 critical infrastructure security services based in Brazil
RevenueBase records 479 matching company records for critical infrastructure security services based in Brazil, with 9,428 tracked contacts and 1,431 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 27, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 critical infrastructure security services based in Brazil
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Comando G8comandog8.com.br HQ: São Paulo, BrazilReported employees: 5,001-10,000 | São Paulo, Brazil | 5,001-10,000 | Exact match | 1,361 contacts → |
“O Grupo Comando G8 é referência nacional na implantação e operação de soluções integradas em segurança e serviços.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Safewaysafewayconsultoria.com HQ: Sao Paulo, BrazilReported employees: 201-500 | Sao Paulo, Brazil | 201-500 | Exact match | 399 contacts → |
“A SAFEWAY empresa que integra a plataforma de cibersegurança do Grupo Stefanini se une a Protega.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Grupo Liberdadegrupoliberdade.com.br HQ: São Paulo, BrazilReported employees: 1,001-5,000 | São Paulo, Brazil | 1,001-5,000 | Exact match | 304 contacts → |
“Há mais de 25 anos no mercado, com atuação nacional e com uma estrutura moderna, o Grupo Liberdade tem se destacado na execução de serviços de segurança que não se limitam a…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Grupo SEI Segurança E Inteligênciaseiinteligencia.com.br HQ: Serra, BrazilReported employees: 1,001-5,000 | Serra, Brazil | 1,001-5,000 | Exact match | 285 contacts → |
“Grupo SEI - is a facilities services company based out of Brazil.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Opliumoplium.com HQ: Sao Paulo, BrazilReported employees: 201-500 | Sao Paulo, Brazil | 201-500 | Exact match | 230 contacts → |
“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 description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Redbelt Securityredbelt.com.br HQ: Sao Paulo, BrazilReported employees: 51-200 | Sao Paulo, Brazil | 51-200 | Exact match | 215 contacts → |
“O nosso trabalho é proteger o seu.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Stefanini Cyberstefaninicyber.com HQ: Sao Paulo, BrazilReported employees: 501-1,000 | Sao Paulo, Brazil | 501-1,000 | Exact match | 206 contacts → |
“Leader in Managed Security Services, recognized by ISG Provider Lens, and an integral part of the cybersecurity ecosystem of the Stefanini Group.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Agilitysomosagility.com.br HQ: São Paulo, BrazilReported employees: 51-200 | São Paulo, Brazil | 51-200 | Exact match | 189 contacts → |
“Oferecemos soluções avançadas em Infraestrutura de TI, Cibersegurança e Inteligência Artificial, projetadas para ambientes de missão crítica e alta complexidade tecnológica.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Autodefesa Brasilautodefesabrasil.com.br HQ: Campinas, BrazilReported employees: 201-500 | Campinas, Brazil | 201-500 | Exact match | 171 contacts → |
“Referência nacional em gestão e tecnologia de segurança, a AutoDefesa Brasil Atua com uma abordagem 360°, oferecendo soluções inovadoras que vão desde a concepção até a…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Future Technologiesfuture.com.br HQ: Petrópolis, BrazilReported employees: 51-200 | Petrópolis, Brazil | 51-200 | Exact match | 158 contacts → |
“Future has been active in the information security market since 1997, bringing confidentiality, integrity, availability and compliance to our customers.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | SCSEGscseg.com.br HQ: Palhoça, BrazilReported employees: 51-200 | Palhoça, Brazil | 51-200 | Exact match | 148 contacts → |
“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…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Under Protectionunderprotection.com.br HQ: Pinhais - Alphaville, BrazilReported employees: 51-200 | Pinhais - Alphaville, Brazil | 51-200 | Exact match | 127 contacts → |
“Inspirar confiança é a meta que guia todas as nossas ações.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Aeon Securityaeon.com.br HQ: Niterói, BrazilReported employees: 51-200 | Niterói, Brazil | 51-200 | Exact match | 120 contacts → |
“Aeon Security is a technology integrator, project developer and service provider for the critical infrastructure industries.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Sekron Digital Brasilsekrondigital.com.br HQ: Sao Paulo, BrazilReported employees: 51-200 | Sao Paulo, Brazil | 51-200 | Exact match | 120 contacts → |
“A Sekron Digital é uma das principais empresas de segurança eletrônica e monitoramento corporativo do Brasil, com atuação nacional e mais de 30 anos de experiência na proteção de…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Icts Securityictssecurity.com.br HQ: Sao Paulo, BrazilReported employees: 51-200 | Sao Paulo, Brazil | 51-200 | Exact match | 106 contacts → |
“A ICTS Security é reconhecida a quase 3 décadas pela excelência em consultoria de serviços de inteligência e segurança.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Alert Systemalertsystem.com.br HQ: Santo Amaro, BrazilReported employees: 51-200 | Santo Amaro, Brazil | 51-200 | Exact match | 71 contacts → |
“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…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | TI Safe Segurança Cibernéticatisafe.com HQ: Rio De Janeiro, BrazilReported employees: 11-50 | Rio De Janeiro, Brazil | 11-50 | Exact match | 70 contacts → |
“A TI Safe é referência nacional em segurança cibernética para infraestruturas críticas, com foco em Sistemas Ciberfísicos (CPS).” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | OL Tecnologiaol-tecnologia.com.br HQ: São Paulo, BrazilReported employees: 51-200 | São Paulo, Brazil | 51-200 | Exact match | 70 contacts → |
“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…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Scunnascunna.com HQ: Porto Alegre, BrazilReported employees: 51-200 | Porto Alegre, Brazil | 51-200 | Exact match | 69 contacts → |
“No mercado desde 1988, a Suportec começou sua atuação como prestadora de serviços de suporte técnico em mainframes.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | QOS Tecnologiaqostecnologia.com.br HQ: Recife, BrazilReported employees: 11-50 | Recife, Brazil | 11-50 | Exact match | 66 contacts → |
“A QOS é especialista em Gestão de Riscos Cibernéticos e Conscientização de Segurança.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | CPDcpd.com.br HQ: Brasília, BrazilReported employees: 51-200 | Brasília, Brazil | 51-200 | Exact match | 62 contacts → |
“O seu parceiro ideal para garantir a segurança da sua jornada digital, a CPD vai além da simples prestação de serviços de Segurança da Informação e Infraestrutura.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | 9net IT Security9net.com.br HQ: São Paulo, BrazilReported employees: 51-200 | São Paulo, Brazil | 51-200 | Exact match | 61 contacts → |
“Cuidamos da segurança e TI para que o foco e investimento de sua empresa estejam em seus negócios!” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Golden Servicegservice.com.br HQ: Teresópolis, BrazilReported employees: 51-200 | Teresópolis, Brazil | 51-200 | Exact match | 61 contacts → |
“Desde sua fundação em 1987 a GS se especializou em Sistemas de Segurança.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Arcade Tecnologiaarcade.com.br HQ: Brasília, BrazilReported employees: 51-200 | Brasília, Brazil | 51-200 | Exact match | 59 contacts → |
“Empresa sólida com ampla experiência em Infraestrutura em TI e Comunicações, Segurança da Informação e Segurança física.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Fasthelp Segurança DA Informaçãofasthelp.com.br HQ: Brasília, BrazilReported employees: 51-200 | Brasília, Brazil | 51-200 | Exact match | 58 contacts → |
“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…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 479 company matches
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Critical infrastructure security services: dataset insights
September 27, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
478 records in the displayed employee bands.
1 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 479 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 27, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Critical infrastructure security services by metro
Questions about this company list
What does Exact match mean for critical infrastructure security services?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many critical infrastructure security services did RevenueBase find based in Brazil?
The saved snapshot records 479 matching company records, 9,428 tracked contacts and 1,431 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 27, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Critical infrastructure security services by geography
- Critical infrastructure security services based in Brisbane, Australia
- Critical infrastructure security services based in Melbourne, Australia
- Critical infrastructure security services based in Sydney, Australia
- Critical infrastructure security services based in Rio De Janeiro, Brazil
- Critical infrastructure security services based in Sao Paulo, Brazil
- Critical infrastructure security services based in Calgary, Canada
- Critical infrastructure security services based in Montreal, Canada
- Critical infrastructure security services based in Ottawa, Canada
- Critical infrastructure security services based in Toronto, Canada
- Critical infrastructure security services based in Santiago, Chile
- Critical infrastructure security services based in Paris, France
- Critical infrastructure security services based in Berlin, Germany
Cite this list
RevenueBase Data Team. Top 25 critical infrastructure security services based in Brazil. Snapshot: September 27, 2026. https://revenuebase.ai/companies/critical-infrastructure-security-services/brazil.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Critical infrastructure security services based in Brisbane, Australia
- Critical infrastructure security services based in Melbourne, Australia
- Critical infrastructure security services based in Sydney, Australia
- Critical infrastructure security services based in Rio De Janeiro, Brazil
- Critical infrastructure security services based in Sao Paulo, Brazil
- Critical infrastructure security services based in Calgary, Canada