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, its RevenueBase Smart Search rating, 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 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating 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. RevenueBase Smart Search rates how each company's information relates to operational technology security companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Concert Technologies	Strong evidence	Belo Horizonte, BrazilHQ checked Sep 5, 2026	201-500	179 contacts →
	Strong evidence “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: RevenueBase Database · checked Sep 5, 2026
2	Securityfirst	Indirect evidence	São Paulo, BrazilHQ checked Sep 5, 2026	51-200	79 contacts →
	Indirect evidence “Consultoria especializada em:_Cybersecurity O SOC mais inovador do Brasil!” Source: RevenueBase Database · checked Sep 5, 2026
3	Alert System	Indirect evidence	Santo Amaro, BrazilHQ checked Sep 5, 2026	51-200	71 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 5, 2026
4	Alarmtek Tecnologia Autodefesa Ltda	Indirect evidence	Barueri, BrazilHQ checked Sep 5, 2026	51-200	71 contacts →
	Indirect evidence “A Alarmtek atua no mercado brasileiro de Sistemas Eletrônicos de segurança e monitoramento desde 1998.” Source: RevenueBase Database · checked Sep 5, 2026
5	TI Safe Segurança Cibernética	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 5, 2026	11-50	70 contacts →
	Indirect evidence “A TI Safe é referência nacional em segurança cibernética para infraestruturas críticas, com foco em Sistemas Ciberfísicos (CPS).” Source: RevenueBase Database · checked Sep 5, 2026
6	Vortex Security	Indirect evidence	São Paulo, BrazilHQ checked Sep 5, 2026	51-200	68 contacts →
	Indirect evidence “Somos uma empresa brasileira especializada em Cibersegurança, com atuação em SOC, MSS e consultoria para ambientes corporativos e industriais (IT e OT).” Source: RevenueBase Database · checked Sep 5, 2026
7	Netsafe Corp	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 5, 2026	11-50	60 contacts →
	Indirect evidence “Com mais de 25 anos de mercado, a NetSafe Corp é especialista em segurança da informação.” Source: RevenueBase Database · checked Sep 5, 2026
8	Viwsec	Indirect evidence	Barueri, BrazilHQ checked Sep 5, 2026	11-50	51 contacts →
	Indirect evidence “A VIWSEC foi fundada em para proteção de serviços corporativos e de e-commerce no início da Internet empresarial no Brasil.” Source: RevenueBase Database · checked Sep 5, 2026
9	Sentinela Security Intelligence	Partial evidence	Porto Alegre, BrazilHQ checked Sep 5, 2026	11-50	42 contacts →
	Partial evidence “A Sentinela Security é uma empresa gaúcha, fundada em 2004.” Source: RevenueBase Database · checked Sep 5, 2026
10	World Zone Tecnologia	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 5, 2026	11-50	30 contacts →
	Indirect evidence “DA World Zone Tecnologia é especializada em cibersegurança, conectividade, cloud, OT & IoT e serviços gerenciados, ajudando organizações a transformar tecnologia em vantagem…” Source: RevenueBase Database · checked Sep 5, 2026
11	NE	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 5, 2026	11-50	23 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 5, 2026
12	Avanzi Tecnologia	Indirect evidence	São Paulo, BrazilHQ checked Sep 5, 2026	51-200	19 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 5, 2026
13	Heimdallr Cybersecurity	Indirect evidence	Cuiabá, BrazilHQ checked Sep 5, 2026	11-50	13 contacts →
	Indirect evidence “Comercializamos produtos e serviços de cibersegurança para empresas nas áreas de indústria, comércio, agronegócio, educação, saúde, governo, segurança pública, cooperativas e…” Source: RevenueBase Database · checked Sep 5, 2026
14	Automation Security And Services	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 5, 2026	51-200	12 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 5, 2026
15	Secure Tecnologia	Strong evidence	Sao Paulo, BrazilHQ checked Sep 5, 2026	11-50	10 contacts →
	Strong evidence “Secure Tecnologia is a company specialized in corporate cybersecurity, security operations, and strategic technology consulting, with active presence in Manaus, São Paulo, and…” Source: RevenueBase Database · checked Sep 5, 2026
16	Five IT Solutions	Indirect evidence	Porto Alegre, BrazilHQ checked Sep 5, 2026	11-50	10 contacts →
	Indirect evidence “A Five IT presta Consultoria de Tecnologia com os melhores players globais, especializada em Segurança da Informação, Infraestrutura e Cloud.” Source: RevenueBase Database · checked Sep 5, 2026
17	Groupnet	Strong evidence	Rio De Janeiro, BrazilHQ checked Sep 5, 2026	51-200	7 contacts →
	Strong evidence “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: RevenueBase Database · checked Sep 5, 2026
18	Apollo Soluções EM TI	Indirect evidence	São Paulo, BrazilHQ checked Sep 5, 2026	11-50	5 contacts →
	Indirect evidence “Somos uma empresa líder em serviços de Tecnologia da Informação e Segurança da Informação, impulsionada pela inovação e excelência.” Source: RevenueBase Database · checked Sep 5, 2026
19	Data Carrier Networks	Indirect evidence	Barueri, BrazilHQ checked Sep 5, 2026	11-50	4 contacts →
	Indirect evidence “Com mais de 15 anos, somos especialistas em soluções de cibersegurança, cloud computing, infraestrutura de TI, conectividade e IoT.” Source: RevenueBase Database · checked Sep 5, 2026
20	ITISE	Indirect evidence	Guarulhos, BrazilHQ checked Sep 5, 2026	1-10	4 contacts →
	Indirect evidence “A ITISE é uma empresa 100% nacional, fundada em que atua no mercado de TI, especializada em prover soluções de cibersegurança.” Source: RevenueBase Database · checked Sep 5, 2026
21	Zenwall	Indirect evidence	Santa Cruz Do Sul, BrazilHQ checked Sep 5, 2026	1-10	3 contacts →
	Indirect evidence “Somos especialistas em cibersegurança, comprometidos em entregar as melhores soluções de segurança para empresas de diferentes tamanhos e ramos de atuação.” Source: RevenueBase Database · checked Sep 5, 2026
22	Outbase Next-Gen Solutions	Indirect evidence	Serra, BrazilHQ checked Sep 5, 2026	11-50	3 contacts →
	Indirect evidence “A Outbase é uma provedora de soluções de IoT e tecnologia operacional com sede no Brasil e atuação em toda a América Latina.” Source: RevenueBase Database · checked Sep 5, 2026
23	Solvian Tecnologia	Indirect evidence	Campinas, BrazilHQ checked Sep 5, 2026	11-50	3 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 5, 2026
24	Cyber BR	Partial evidence	Sao Paulo, BrazilHQ checked Sep 5, 2026	1-10	2 contacts →
	Partial evidence “Somos uma consultoria especializada em proteção cibernética de ambientes industriais (ICS/SCADA/OT/IIOT Security).” Source: RevenueBase Database · checked Sep 5, 2026
25	CAME	Indirect evidence	Londrina, BrazilHQ checked Sep 5, 2026	1-10	2 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 5, 2026

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: operational technology security 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 operational technology security companies.
Partial evidence: Its own public description names part of operational technology security companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name operational technology security 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 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

33.1%Verified-email coverage

1.3%Mobile-number coverage

19.5Average contacts per company

11-50Median size (employees)

23.1%Largest-city concentration · Sao Paulo

Sep 5, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

3130–30

2331–60

061–90

090–180

0180+

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 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 “operational technology security 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 operational technology security 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 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 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, 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

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 operational technology security 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 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 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.