Company lists · Data refreshed November 2026

Top 14 Data security engineers based in Rio De Janeiro, Brazil

RevenueBase identified 44 company matches for data security engineers associated with Rio De Janeiro, Brazil as of November 2026 and tracks 652 professional contacts across them, including 59 with verified work emails. Across Brazil, Sao Paulo is the largest hub for this category (192 companies); Rio De Janeiro follows with 44.

This list covers company matches for data security engineers associated with Rio De Janeiro, 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
44Companies
652Contacts tracked
59Verified emails
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The 14 largest data security engineers based in Rio De Janeiro, Brazil

Ranked by team size
Top 14 of 44 company matches for data security engineers based in Rio De Janeiro, 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 matchRio De Janeiro, BrazilHQ recorded Nov 5, 202611-5051 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2Exact matchRio De Janeiro, BrazilHQ recorded Nov 5, 202651-20026 contacts →

Exact match

“Para materializar boas ideias e fazer história, é preciso mais que competência, é preciso ter valores.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3Exact matchRio De Janeiro, BrazilHQ recorded Nov 5, 202611-5023 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4Exact matchRio De Janeiro, BrazilHQ recorded Nov 5, 202611-509 contacts →

Exact match

“Segurança que pensa à frente.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5Exact matchRio De Janeiro, BrazilHQ recorded Nov 5, 202611-507 contacts →

Exact match

“Fundada em 2003, a ISBrasil conta com uma vasta experiência no mercado tecnológico e se solidificou pelo trabalho eficiente que oferece aos seus clientes.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6Exact matchRio De Janeiro, BrazilHQ recorded Nov 5, 202611-506 contacts →

Exact match

“A Unidade 37 é uma empresa que atua no ramo de segurança cibernética ofensiva, ajudando empresas dos mais diversos setores a se protegerem contra ameaças cibernéticas.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7Exact matchRio De Janeiro, BrazilHQ recorded Nov 5, 202611-505 contacts →

Exact match

“Apoiar empresas em relação aos desafios de segurança de TI e infra.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8Exact matchRio De Janeiro, BrazilHQ recorded Nov 5, 202611-505 contacts →

Exact match

“A Cloud Technology nasceu em 2010, afim de trazer novas soluções globais em Segurança da Informação para o mercado brasileiro.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9Exact matchRio De Janeiro, BrazilHQ recorded Nov 5, 20261-102 contacts →

Exact match

“Sua empresa de segurança - Especializações- Tecnologia - Segurança da computação - Consultoria - Governaça de TI - Entre outras!”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10Exact matchRio De Janeiro, BrazilHQ recorded Nov 5, 20261-102 contacts →

Exact match

“A Infocosta Tecnologia atua há mais de 6 anos de ajudando empresas a estruturarem, protegerem e simplificarem seus ambientes de TI.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11Exact matchRio De Janeiro, BrazilHQ recorded Nov 5, 20261-102 contacts →

Exact match

“Uma consultoria focada em segurança de dados e projetos especiais de TI, com soluções para proteção e monitoramento de rede, estações, servidores e infraestrutura de cloud.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12Exact matchRio De Janeiro, BrazilHQ recorded Nov 5, 202611-501 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13Exact matchRio De Janeiro, BrazilHQ recorded Nov 5, 20261-101 contacts →

Exact match

“A Green Hat Segurança da Informação surgiu como uma spin-off corporativa da Clavis Segurança da Informação com o objetivo de explorar, executar e desenvolver exclusivamente…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14Exact matchRio De Janeiro, BrazilHQ recorded Nov 5, 20261-101 contacts →

Exact match

“Doutornet Technology: Protecting Your Digital Future At Doutornet Technology, we specialize in cybersecurity and system automation, dedicated to protecting and optimizing our…”

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

Showing 14 of 44 data security engineers based in Rio De Janeiro, Brazil

See the full list, filter by size, metro and specialty, and access 59 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Data security engineers based in Rio De Janeiro, Brazil at a glance

As of Nov 5, 2026
9.0%Verified-email coverage
14.8Average contacts per company
1-10Median size (employees)
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
23
11-50
17
51-200
3
201-500
1

Email recency for this list is measured across the whole Brazil list rather than for Rio De Janeiro, so it is reported there. Company counts and contact totals on this page are exact for Rio De Janeiro, over 44 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 Rio De Janeiro, Brazil whose business descriptions match “data security engineers” 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 59 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.

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

How many data security engineers are there based in Rio De Janeiro, Brazil?

RevenueBase identified 44 company matches for data security engineers associated with Rio De Janeiro, 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?

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

Which city in Brazil has the most data security engineers?

Sao Paulo leads Brazil with 192 company records, followed by Rio De Janeiro (44) and Brasilia (26).

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 59 professional contacts with verified work emails tracked across these 44 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.