Company lists · Data refreshed September 2026

Top 25 Operational technology security companies based in Brazil

Name: Operational technology security companies based in Brazil
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 52 companies tracked

RevenueBase identified 52 operational technology security companies headquartered in Brazil as of September 2026 and tracks 1,014 professional contacts across them, including 336 with verified work emails and 13 with mobile numbers. Sao Paulo is the largest hub.

This list covers operational technology security 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, 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

52Companies

1,014Contacts tracked

336Verified emails

13Mobile numbers

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The 25 largest operational technology security companies based in Brazil

Ranked by team size

Top 25 of 52 operational technology security companies based in Brazil, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names operational technology security companies: 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	Concert TechnologiesStrong evidence	Belo Horizonte, BrazilHQ checked Sep 5, 2026	201-500	179
	“We are a business group focused on Operational Technology (OT) solutions, formed by two business units, Concert Engenharia and Concert Lab, and the startup thingable.” Source: company website · checked Sep 5, 2026
2	SecurityfirstIndirect evidence	São Paulo, BrazilHQ checked Sep 5, 2026	51-200	79
	“Consultoria especializada em:_Cybersecurity O SOC mais inovador do Brasil!” Source: company website · checked Sep 5, 2026
3	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
4	Alarmtek Tecnologia Autodefesa LtdaIndirect evidence	Barueri, BrazilHQ checked Sep 5, 2026	51-200	71
	“A Alarmtek atua no mercado brasileiro de Sistemas Eletrônicos de segurança e monitoramento desde 1998.” Source: company website · checked Sep 5, 2026
5	TI Safe Segurança CibernéticaIndirect evidence	Rio De Janeiro, BrazilHQ checked Sep 5, 2026	11-50	70
	“A TI Safe é referência nacional em segurança cibernética para infraestruturas críticas, com foco em Sistemas Ciberfísicos (CPS).” Source: company website · checked Sep 5, 2026
6	Vortex SecurityIndirect evidence	São Paulo, BrazilHQ checked Sep 5, 2026	51-200	68
	“Somos uma empresa brasileira especializada em Cibersegurança, com atuação em SOC, MSS e consultoria para ambientes corporativos e industriais (IT e OT).” Source: company website · checked Sep 5, 2026
7	Netsafe CorpIndirect evidence	Sao Paulo, BrazilHQ checked Sep 5, 2026	11-50	60
	“Com mais de 25 anos de mercado, a NetSafe Corp é especialista em segurança da informação.” Source: company website · checked Sep 5, 2026
8	ViwsecIndirect evidence	Barueri, BrazilHQ checked Sep 5, 2026	11-50	51
	“A VIWSEC foi fundada em para proteção de serviços corporativos e de e-commerce no início da Internet empresarial no Brasil.” Source: company website · checked Sep 5, 2026
9	Sentinela Security IntelligencePartial evidence	Porto Alegre, BrazilHQ checked Sep 5, 2026	11-50	42
	“A Sentinela Security é uma empresa gaúcha, fundada em 2004.” Source: company website · checked Sep 5, 2026
10	World Zone TecnologiaIndirect evidence	Rio De Janeiro, BrazilHQ checked Sep 5, 2026	11-50	30
	“DA World Zone Tecnologia é especializada em cibersegurança, conectividade, cloud, OT & IoT e serviços gerenciados, ajudando organizações a transformar tecnologia em vantagem…” Source: company website · checked Sep 5, 2026
11	NEIndirect evidence	Rio De Janeiro, BrazilHQ checked Sep 5, 2026	11-50	23
	“Somos a NE, uma das empresas de tecnologia que mais cresce no país criada através da paixão pela tecnologia e inovação, especializada em consultoria e soluções de cibersegurança.” Source: company website · checked Sep 5, 2026
12	Avanzi TecnologiaIndirect evidence	São Paulo, BrazilHQ checked Sep 5, 2026	51-200	19
	“Com mais de 18 anos de expertise no mercado de tecnologia, nós, da Avanzi, estamos presentes em cerca de 480 cidades para garantir a segurança das operações de nossos clientes.” Source: company website · checked Sep 5, 2026
13	Heimdallr CybersecurityIndirect evidence	Cuiabá, BrazilHQ checked Sep 5, 2026	11-50	13
	“Comercializamos produtos e serviços de cibersegurança para empresas nas áreas de indústria, comércio, agronegócio, educação, saúde, governo, segurança pública, cooperativas e…” Source: company website · checked Sep 5, 2026
14	Automation Security And ServicesIndirect evidence	Belo Horizonte, BrazilHQ checked Sep 5, 2026	51-200	12
	Source: company website · checked Sep 5, 2026
15	Secure TecnologiaStrong evidence	Sao Paulo, BrazilHQ checked Sep 5, 2026	11-50	10
	“Secure Tecnologia is a company specialized in corporate cybersecurity, security operations, and strategic technology consulting, with active presence in Manaus, São Paulo, and…” Source: company website · checked Sep 5, 2026
16	Five IT SolutionsIndirect evidence	Porto Alegre, BrazilHQ checked Sep 5, 2026	11-50	10
	“A Five IT presta Consultoria de Tecnologia com os melhores players globais, especializada em Segurança da Informação, Infraestrutura e Cloud.” Source: company website · checked Sep 5, 2026
17	GroupnetStrong evidence	Rio De Janeiro, BrazilHQ checked Sep 5, 2026	51-200	7
	“Groupnet is a 24/7 Operational Technology Operations Center capable of monitoring our customers in the infrastructure, security and application layers, as well as providing…” Source: company website · checked Sep 5, 2026
18	Apollo Soluções EM TIIndirect evidence	São Paulo, BrazilHQ checked Sep 5, 2026	11-50	5
	“Somos uma empresa líder em serviços de Tecnologia da Informação e Segurança da Informação, impulsionada pela inovação e excelência.” Source: company website · checked Sep 5, 2026
19	Data Carrier NetworksIndirect evidence	Barueri, BrazilHQ checked Sep 5, 2026	11-50	4
	“Com mais de 15 anos, somos especialistas em soluções de cibersegurança, cloud computing, infraestrutura de TI, conectividade e IoT.” Source: company website · checked Sep 5, 2026
20	ITISEIndirect evidence	Guarulhos, BrazilHQ checked Sep 5, 2026	1-10	4
	“A ITISE é uma empresa 100% nacional, fundada em que atua no mercado de TI, especializada em prover soluções de cibersegurança.” Source: company website · checked Sep 5, 2026
21	ZenwallIndirect evidence	Santa Cruz Do Sul, BrazilHQ checked Sep 5, 2026	1-10	3
	“Somos especialistas em cibersegurança, comprometidos em entregar as melhores soluções de segurança para empresas de diferentes tamanhos e ramos de atuação.” Source: company website · checked Sep 5, 2026
22	Outbase Next-Gen SolutionsIndirect evidence	Serra, BrazilHQ checked Sep 5, 2026	11-50	3
	“A Outbase é uma provedora de soluções de IoT e tecnologia operacional com sede no Brasil e atuação em toda a América Latina.” Source: company website · checked Sep 5, 2026
23	Solvian TecnologiaIndirect evidence	Campinas, BrazilHQ checked Sep 5, 2026	11-50	3
	“A Solvian Tecnologia é uma empresa jovem, originada da motivação em integrar conhecimento e inovação para gerar soluções diferenciadas nos mercados de Facilities, Óleo e Gás e…” Source: company website · checked Sep 5, 2026
24	Cyber BRPartial evidence	Sao Paulo, BrazilHQ checked Sep 5, 2026	1-10	2
	“Somos uma consultoria especializada em proteção cibernética de ambientes industriais (ICS/SCADA/OT/IIOT Security).” Source: company website · checked Sep 5, 2026
25	CAMEIndirect evidence	Londrina, BrazilHQ checked Sep 5, 2026	1-10	2
	“A CameIT é especialista em cibersegurança e infraestrutura de TI, ajudando empresas a reduzir riscos, fortalecer sua operação e alinhar tecnologia aos objetivos do negócio.” Source: company website · checked Sep 5, 2026

Showing 25 of 52 operational technology security companies based in Brazil

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Operational technology security companies based in Brazil at a glance

As of Sep 5, 2026

11-50Median size (employees)

Sao PauloLargest hub · 12 HQs

13Contacts with mobile numbers

Sep 5, 2026Data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

Verified emails by last verification

0–30

313

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 operational technology security companies, 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 “operational technology security companies”. 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 operational technology security 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 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, 336 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.

Frequently asked

How many operational technology security companies are there based in Brazil?

RevenueBase identified 52 operational technology security 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?

Concert Technologies, headquartered in Belo Horizonte, tops this list with the largest team on record.

Which city has the most operational technology security companies?

Sao Paulo leads with 12 headquartered companies, followed by Rio De Janeiro (5) and Barueri (4).

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 336 verified decision-maker contacts tracked across these 52 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.