Company lists · Data refreshed September 2026
Top 25 Surveillance and monitoring companies based in Brazil
RevenueBase identified 1,421 surveillance and monitoring companies headquartered in Brazil as of September 2026 and tracks 16,597 professional contacts across them, including 809 with verified work emails. Sao Paulo is the largest hub.
This list covers surveillance and monitoring companies headquartered in Brazil, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 22, 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.
The 25 largest surveillance and monitoring companies based in Brazil
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 842 contacts → | ||||
Indirect evidence “Proguarda é segurança.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 2 | 607 contacts → | ||||
Indirect evidence “O grupo Anjos da Guarda iniciou atividades na década de 80.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 3 | 563 contacts → | ||||
Indirect evidence “Empresa especializada em soluções personalizadas de Segurança Privada, contando com serviços de Vigilância Patrimonial, Segurança Pessoal e Segurança Eletrônica.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 4 | 321 contacts → | ||||
Indirect evidence “A empresa oferece profissionais qualificados para diversas funções, entre elas, portaria e/ou controlador de acesso, auxiliar de serviços gerais, zeladoria, atendente, auxiliar…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 5 | 260 contacts → | ||||
Indirect evidence “A JFL Alarmes é reconhecida como a maior fabricante de alarmes e cercas elétricas do Brasil, uma empresa 100% brasileira que desenvolve um vasto leque de produtos de alta…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 6 | 171 contacts → | ||||
Indirect evidence “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…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 7 | 159 contacts → | ||||
Indirect evidence “O Grupo Combate carrega quase três décadas de trajetória marcada por excelência e dedicação, consolidando-se como referência em segurança privada na Paraíba e em todo o Nordeste.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 8 | 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 22, 2026Thanks. The Data Team will review it. | |||||
| 9 | 141 contacts → | ||||
Indirect evidence “O GrupoSEG é uma empresa pernambucana líder no mercado de vigilância eletrônica, com sede no Recife-PE e filiais no interior do Estado e nas capitais do Nordeste.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 10 | 120 contacts → | ||||
Indirect evidence “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…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 11 | 118 contacts → | ||||
Partial evidence “In business since Info4 is known as one of the best companies for media monitoring and analytics in Brazil, ranking among the ten largest PR/Communication agencies in the country…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 12 | 110 contacts → | ||||
Strong evidence “A company specialized in Property Surveillance, Electronic Monitoring, Risk Analysis, Security Projects, and Facilities Services for a wide range of institutions, commercial…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 13 | 93 contacts → | ||||
Indirect evidence “Autobras is one of the best options in the country in installation and maintenance of electronic systems for security and building automation.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 14 | 93 contacts → | ||||
Indirect evidence “A High Link é uma empresa de segurança especializada em sistemas eletrônicos integrados.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 15 | 91 contacts → | ||||
Indirect evidence “Uma empresa com foco em liderar pela excelência em serviços.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 16 | 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 22, 2026Thanks. The Data Team will review it. | |||||
| 17 | 71 contacts → | ||||
Indirect evidence “A Alarmtek atua no mercado brasileiro de Sistemas Eletrônicos de segurança e monitoramento desde 1998.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 18 | 71 contacts → | ||||
Indirect evidence “Radcom Alarmes, Monitoramento de Alarmes e Imagens 24 horas.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 19 | 66 contacts → | ||||
Indirect evidence “Telealarme Brasil is an information technology and services company based out of Brazil.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 20 | 62 contacts → | ||||
Indirect evidence “Empresa especializada no segmento de Segurança Eletrônica, voltada a Alarme, CFTV - circuito fechado de televisão e rastreamento veicular, nas respectivas áreas atua com o…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 21 | 61 contacts → | ||||
Indirect evidence “Desde sua fundação em 1987 a GS se especializou em Sistemas de Segurança.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 22 | 56 contacts → | ||||
Indirect evidence “Há 28 anos a Vigillare presta serviços de segurança através de monitoramento, rastreamento, vídeo monitoramento, com suporte operacional 24 horas por dia, contando com uma equipe…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 23 | 55 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 24 | 54 contacts → | ||||
Indirect evidence “A Estrela Sistemas Eletrônicos é uma empresa integrante do Grupo Estrela.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 25 | 50 contacts → | ||||
Indirect evidence “A SEMAX - Segurança Máxima com mais de 20 anos de experiência nos segmentos de telecomunicações e segurança eletrônica.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
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: surveillance and monitoring companies. 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 surveillance and monitoring companies.
- Partial evidence
- Its own public description names part of surveillance and monitoring companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name surveillance and monitoring companies. 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 1,421 surveillance and monitoring companies based in Brazil
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Surveillance and monitoring companies based in Brazil at a glance
As of Sep 22, 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 1,421 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 surveillance and monitoring companies, 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 “surveillance and monitoring companies”. 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 surveillance and monitoring companies), 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 surveillance and monitoring companies, and records with no verified work email. Companies headquartered outside Brazil are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and 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, 809 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 22, 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.
Surveillance and monitoring companies by metro
- Surveillance and monitoring companies in Sao Paulo248
- Surveillance and monitoring companies in Rio De Janeiro86
- Surveillance and monitoring companies in Belo Horizonte54
- Surveillance and monitoring companies in Curitiba41
- Surveillance and monitoring companies in Porto Alegre33
- Surveillance and monitoring companies in Campinas30
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 surveillance and monitoring companies, 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 surveillance and monitoring companies are there based in Brazil?
RevenueBase identified 1,421 surveillance and monitoring companies headquartered in Brazil as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Proguarda Vigilância E Segurança, headquartered in Aparecida De Goiania, tops this list with the largest team on record.
Which city has the most surveillance and monitoring companies?
Sao Paulo leads with 248 headquartered companies, followed by Rio De Janeiro (86) and Belo Horizonte (54).
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 809 verified decision-maker contacts tracked across these 1,421 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 22, 2026.
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Surveillance and monitoring companies by geography
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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.
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