Company lists · Data refreshed September 2026

Top 25 Perimeter security services based in Brazil

Name: Perimeter security services based in Brazil
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 267 companies tracked

RevenueBase identified 267 perimeter security services headquartered in Brazil as of September 2026 and tracks 8,342 professional contacts across them, including 292 with verified work emails and 43 with mobile numbers. Sao Paulo is the largest hub.

This list covers perimeter security services 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, how directly it supports the match, and when it was last checked. Data refreshed September 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 HQ checked on every row Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review

267Companies

8,342Contacts tracked

292Verified emails

43Mobile numbers

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The 25 largest perimeter security services based in Brazil

Ranked by team size

Top 25 of 267 perimeter security services based in Brazil, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names perimeter security services: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	Fort KnoxIndirect evidence	São Paulo, BrazilHQ checked Sep 5, 2026	5,001-10,000	563
	“Empresa especializada em soluções personalizadas de Segurança Privada, contando com serviços de Vigilância Patrimonial, Segurança Pessoal e Segurança Eletrônica.” Source: company website · checked Sep 5, 2026
2	Seguro SegurançaIndirect evidence	Fortaleza, BrazilHQ checked Sep 5, 2026	1,001-5,000	515
	“Desde 2012, a Seguro atua com excelência, oferecendo soluções completas em Segurança Patrimonial, Terceirização de Mão de Obra e Segurança Eletrônica.” Source: company website · checked Sep 5, 2026
3	Grupo SEI Segurança E InteligênciaIndirect evidence	Serra, BrazilHQ checked Sep 5, 2026	1,001-5,000	285
	“Grupo SEI - is a facilities services company based out of Brazil.” Source: company website · checked Sep 5, 2026
4	Grupo CombateIndirect evidence	João Pessoa, BrazilHQ checked Sep 5, 2026	501-1,000	159
	“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: company website · checked Sep 5, 2026
5	Gruposeg OficialIndirect evidence	Recife, BrazilHQ checked Sep 5, 2026	501-1,000	141
	“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: company website · checked Sep 5, 2026
6	NTS - SegurançaIndirect evidence	Natal, BrazilHQ checked Sep 5, 2026	201-500	119
	“Empresa de Segurança Eletrônica, Monitoramento, Rastreamento, Portaria Remota e facilites.” Source: company website · checked Sep 5, 2026
7	DotsegIndirect evidence	Sao Paulo, BrazilHQ checked Sep 5, 2026	501-1,000	96
	“A DOTSEG nasceu com foco na entrega de soluções em segurança eletrônica, terceirização de mão de obra e segurança patrimonial em condomínios.” Source: company website · checked Sep 5, 2026
8	Prodetech GroupIndirect evidence	São Paulo, BrazilHQ checked Sep 5, 2026	501-1,000	87
	“PRODETECH Segurança e Serviços Há mais de 26 anos, a PRODETECH é referência em soluções integradas de segurança e serviços, destacando-se pela excelência, inovação e compromisso…” Source: company website · checked Sep 5, 2026
9	Gentt Segurança E FacilitiesIndirect evidence	São Paulo, BrazilHQ checked Sep 5, 2026	501-1,000	83
	“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.” Source: company website · checked Sep 5, 2026
10	Alert SystemIndirect evidence	Santo Amaro, BrazilHQ checked Sep 5, 2026	51-200	71
	“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…” Source: company website · checked Sep 5, 2026
11	A.R. Strium Solução EM Sistemas E Segurança LtdaIndirect evidence	Sao Paulo, BrazilHQ checked Sep 5, 2026	n/a	31
	“A.R.” Source: company website · checked Sep 5, 2026
12	Satélite Segurança EletrônicaIndirect evidence	Uberaba, BrazilHQ checked Sep 5, 2026	11-50	26
	“A Satélite Segurança Eletrônica é uma empresa que atua mais há mais de 25 anos no mercado de segurança eletrônica de Uberaba, Minas Gerais.” Source: company website · checked Sep 5, 2026
13	Sepa Seguranca EletronicaIndirect evidence	Santo André, BrazilHQ checked Sep 5, 2026	11-50	24
	Source: company website · checked Sep 5, 2026
14	Sitela Soluções EM FechamentosPartial evidence	Campinas, BrazilHQ checked Sep 5, 2026	51-200	13
	“Fundada em 1986, a Sitela reuniu uma equipe de profissionais ligados ao setor de produção e montagem de alambrados e gradis e proteção perimetral em geral em busca da excelência…” Source: company website · checked Sep 5, 2026
15	Cava Vigilância E Segurança LtdaIndirect evidence	Sao Paulo, BrazilHQ checked Sep 5, 2026	11-50	13
	“Fundada em 1983, a Cava Vigilância e Segurança é uma empresa especializada em vigilância patrimonial com foco na inovação, comprometimento e atendimento personalizado, visando a…” Source: company website · checked Sep 5, 2026
16	Qualiguard Portaria RemotaPartial evidence	Santos, BrazilHQ checked Sep 5, 2026	11-50	10
	“QualiGuard - Portaria Remota is a security company based out of Av.” Source: company website · checked Sep 5, 2026
17	Lasetronik Sistemas EletronicosIndirect evidence	Curitiba, BrazilHQ checked Sep 5, 2026	11-50	9
	Source: company website · checked Sep 5, 2026
18	Grupo MagavIndirect evidence	Curitiba, BrazilHQ checked Sep 5, 2026	11-50	7
	“Atuamos no desenvolvimento de soluções de segurança para empreendimentos Residenciais, Comerciais, Instituições de Ensino, Hospitalares, Shoppings, Industrias, Eventos e Agro.” Source: company website · checked Sep 5, 2026
19	RP GestãoIndirect evidence	São Paulo, BrazilHQ checked Sep 5, 2026	51-200	7
	“Terceirização de Serviços - Portaria - Limpeza - Segurança Eletrônica - Portaria Remota” Source: company website · checked Sep 5, 2026
20	Celffort Serviços E MonitoramentoIndirect evidence	São Paulo, BrazilHQ checked Sep 5, 2026	51-200	6
	“A Celffort Serviços de Segurança e Monitoramento Ltda.” Source: company website · checked Sep 5, 2026
21	LasetronikIndirect evidence	Curitiba, BrazilHQ checked Sep 5, 2026	11-50	6
	Source: company website · checked Sep 5, 2026
22	Grupo IK Safety SolutionIndirect evidence	São Paulo, BrazilHQ checked Sep 5, 2026	11-50	5
	“O GRUPO IK SAFETY SOLUTION, surgiu com a finalidade de trazer soluções eficientes e atender seus clientes com serviços personalizados com acompanhamento técnico e tático por…” Source: company website · checked Sep 5, 2026
23	WR Tecnologia Digital LtdaIndirect evidence	Belo Horizonte, BrazilHQ checked Sep 5, 2026	1-10	5
	“Com mais de 35 anos de experiência no mercado de grandes Projetos de Engenharia, os profissionais da WR Tecnologia Digital oferecem as melhores soluções em Sistema de Detecção e…” Source: company website · checked Sep 5, 2026
24	SafegateIndirect evidence	Rio De Janeiro, BrazilHQ checked Sep 5, 2026	1-10	2
	“Especializada em Portaria remota/virtual, A Safegate traz inovação e tecnologia para condomínios residenciais, condomínios comerciais, empresas e residências com uma enorme…” Source: company website · checked Sep 5, 2026
25	BR Lock SecuritPartial evidence	Sao Paulo, BrazilHQ checked Sep 5, 2026	1-10	2
	“BR LOCK SECURIT is a company based out of Brazil.” Source: company website · checked Sep 5, 2026

Showing 25 of 267 perimeter security services based in Brazil

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Perimeter security services based in Brazil at a glance

As of Sep 5, 2026

11-50Median size (employees)

Sao PauloLargest hub · 47 HQs

43Contacts with mobile numbers

Sep 5, 2026Data refreshed

Companies by employee count

1-10

102

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

Verified emails by last verification

0–30

266

31–60

61–90

90–180

180+

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 perimeter security services, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Brazil whose own description of what they do matches “perimeter security services”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among perimeter security services, 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 an evidence 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, 292 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 5, 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.

Perimeter security services by metro

Perimeter security services in Sao Paulo47

Frequently asked

How many perimeter security services are there based in Brazil?

RevenueBase identified 267 perimeter security services 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?

Fort Knox, headquartered in Sao Paulo, tops this list with the largest team on record.

Which city has the most perimeter security services?

Sao Paulo leads with 47 headquartered companies, followed by Rio De Janeiro (11) and Belo Horizonte (9).

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 292 verified decision-maker contacts tracked across these 267 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 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.