Company lists · Data refreshed November 2026

Top 25 Monitored security services based in Brazil

RevenueBase identified 741 company matches for monitored security services associated with Brazil as of November 2026 and tracks 11,757 professional contacts across them, including 507 with verified work emails. Sao Paulo is the largest hub.

This list covers company matches for monitored 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 November 5, 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 5, 2026 How this list was built
741Companies
11,757Contacts tracked
507Verified emails
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The 25 largest monitored security services based in Brazil

Ranked by team size
Top 25 of 741 company matches for monitored security services based in Brazil, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchSão José, BrazilHQ recorded Nov 5, 20261,001-5,000677 contacts →

Exact match

“O Grupo Khronos é referência nacional em soluções integradas de segurança, tecnologia e IoT.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2Exact matchBelo Horizonte, BrazilHQ recorded Nov 5, 20261,001-5,000669 contacts →

Exact match

“O grupo Anjos da Guarda iniciou atividades na década de 80.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3Exact matchPorto Alegre, BrazilHQ recorded Nov 5, 2026201-500566 contacts →

Exact match

“A base de um sólido relacionamento deve estar sempre alicerçada em um valor: confiança.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4Exact matchSantos, BrazilHQ recorded Nov 5, 20261,001-5,000375 contacts →

Exact match

“A empresa oferece profissionais qualificados para diversas funções, entre elas, portaria e/ou controlador de acesso, auxiliar de serviços gerais, zeladoria, atendente, auxiliar…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5Exact matchSerra, BrazilHQ recorded Nov 5, 20261,001-5,000306 contacts →

Exact match

“Grupo SEI - is a facilities services company based out of Brazil.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6Exact matchCampinas, BrazilHQ recorded Nov 5, 2026201-500183 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 · Nov 5, 2026 · View company records in RevenueBase
7Exact matchRecife, BrazilHQ recorded Nov 5, 2026501-1,000167 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8Exact matchSao Paulo, BrazilHQ recorded Nov 5, 2026n/a158 contacts →

Exact match

“Atende Portaria é uma Central de Portaria Remota e de Monitoramento de Alarmes e Imagens com atuação em diversos estados do Brasil, através de franquias.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9Exact matchSao Paulo, BrazilHQ recorded Nov 5, 202651-200154 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 · Nov 5, 2026 · View company records in RevenueBase
10Exact matchNatal, BrazilHQ recorded Nov 5, 2026201-500140 contacts →

Exact match

“Empresa de Segurança Eletrônica, Monitoramento, Rastreamento, Portaria Remota e facilites.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11Exact matchRio De Janeiro, BrazilHQ recorded Nov 5, 2026501-1,000112 contacts →

Exact match

“A company specialized in Property Surveillance, Electronic Monitoring, Risk Analysis, Security Projects, and Facilities Services for a wide range of institutions, commercial…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12Exact matchSão Paulo, BrazilHQ recorded Nov 5, 202651-200105 contacts →

Exact match

“Uma empresa com foco em liderar pela excelência em serviços.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13Exact matchCuritiba, BrazilHQ recorded Nov 5, 202651-20098 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14Exact matchSão Paulo, BrazilHQ recorded Nov 5, 2026501-1,00091 contacts →

Exact match

“Nascemos com a missão de proporcionar a integração harmoniosa entre seres humanos e tecnologia, a fim de oferecer soluções abrangentes para a proteção de pessoas e patrimônios.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact matchSão José, BrazilHQ recorded Nov 5, 202651-20090 contacts →

Exact match

“A High Link é uma empresa de segurança especializada em sistemas eletrônicos integrados.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16Exact matchSao Paulo, BrazilHQ recorded Nov 5, 202651-20079 contacts →

Exact match

“Radcom Alarmes, Monitoramento de Alarmes e Imagens 24 horas.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17Exact matchSão Paulo, BrazilHQ recorded Nov 5, 202651-20065 contacts →

Exact match

“Empresa especializada no segmento de Segurança Eletrônica, voltada a Alarme, CFTV - circuito fechado de televisão e rastreamento veicular, nas respectivas áreas atua com o…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18Exact matchPelotas, BrazilHQ recorded Nov 5, 202651-20059 contacts →

Exact match

“Telealarme Brasil is an information technology and services company based out of Brazil.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19Exact matchSanta Maria, BrazilHQ recorded Nov 5, 2026201-50057 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20Exact matchRecife, BrazilHQ recorded Nov 5, 202651-20046 contacts →

Exact match

“Somos um grupo genuinamente Pernambucano, pioneiro e líder em Torres de Monitoramento e Portaria Remota.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21Exact matchVotorantim, BrazilHQ recorded Nov 5, 202611-5039 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22Exact matchSao Paulo, BrazilHQ recorded Nov 5, 202651-20036 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23Exact matchSanta Maria, BrazilHQ recorded Nov 5, 202651-20035 contacts →

Exact match

“O cuidado que você merece!”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24Exact matchBelo Horizonte, BrazilHQ recorded Nov 5, 202651-20034 contacts →

Exact match

“O SAM (Sistema Autônomo de Monitoramento) é uma solução de segurança móvel e independente, ideal para áreas remotas.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25Exact matchSalvador, BrazilHQ recorded Nov 5, 202651-20033 contacts →

Exact match

“O Grupo Alerta foi fundado em 2005 com o objetivo de oferecer soluções eficazes na prevenção de assaltos e roubos.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase

Showing 25 of 741 monitored security services based in Brazil

See the full list, filter by size, metro and specialty, and access 507 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Monitored security services based in Brazil at a glance

As of Nov 5, 2026
4.3%Verified-email coverage
15.9Average contacts per company
11-50Median size (employees)
15.5%Largest-city concentration · Sao Paulo
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
313
11-50
260
51-200
109
201-500
18
501-1,000
10
1,001-5,000
7
5,001-10,000
1

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 741 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 “monitored 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 507 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 November 5, 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.

Monitored 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 “monitored security services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many monitored security services are there based in Brazil?

RevenueBase identified 741 company matches for monitored security services associated with Brazil as of November 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?

Grupo Khronos tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most monitored security services?

Sao Paulo leads with 115 company records, followed by Rio De Janeiro (30) and Curitiba (28).

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 507 professional contacts with verified work emails tracked across these 741 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 November 5, 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 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.