Company lists · Data refreshed October 2026

Top 8 Medical diagnostic services based in Rio De Janeiro, Brazil

RevenueBase identified 70 company matches for medical diagnostic services associated with Rio De Janeiro, Brazil as of October 2026 and tracks 2,036 professional contacts across them, including 86 with verified work emails. Across Brazil, Sao Paulo is the largest hub for this category (154 companies); Rio De Janeiro follows with 70.

This list covers company matches for medical diagnostic services 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 October 27, 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 Oct 27, 2026 How this list was built
70Companies
2,036Contacts tracked
86Verified emails
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The 8 largest medical diagnostic services based in Rio De Janeiro, Brazil

Ranked by team size
Top 8 of 70 company matches for medical diagnostic services based in Rio De Janeiro, Brazil, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 27, 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 Oct 27, 2026201-500251 contacts →

Exact match

“A ProEcho é uma empresa especializada no diagnóstico por imagem, fundada no Rio de Janeiro em 1989.”

Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
2Exact matchRio De Janeiro, BrazilHQ recorded Oct 27, 2026501-1,000239 contacts →

Exact match

“O Centro Médico Pastore foi fundado com o objetivo de oferecer um serviço médico de alta qualidade e um atendimento acima das expectativas, de forma ética e a um preço acessível.”

Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
3Exact matchRio De Janeiro, BrazilHQ recorded Oct 27, 202651-20098 contacts →

Exact match

“A Saúde Ápice tem 20 anos de uma história de tradição e qualidade no segmento da saúde.”

Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
4Exact matchRio De Janeiro, BrazilHQ recorded Oct 27, 202651-20082 contacts →

Exact match

“NOSSO TEMPO É DEDICADO A VOCÊ A Fonte Imagem é uma clínica de diagnóstico por imagem que tem como sócios médicos com um sonho em comum: praticar a medicina valorizando os…”

Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
5Exact matchRio De Janeiro, BrazilHQ recorded Oct 27, 202651-20051 contacts →

Exact match

“A VEUS é uma empresa de serviços na área da Tecnologia da Informação voltada para o mercado da Saúde nacional.”

Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
6Exact matchRio De Janeiro, BrazilHQ recorded Oct 27, 202611-5021 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
7Exact matchRio De Janeiro, BrazilHQ recorded Oct 27, 202611-504 contacts →

Exact match

“Somos uma empresa com 24 anos de história, fundada por uma mulher com o sonho de ter seu próprio laboratório.”

Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
8Exact matchRio De Janeiro, BrazilHQ recorded Oct 27, 202611-502 contacts →

Exact match

“Desde o início, nosso foco tem sido inovar na área de diagnóstico médico, proporcionando soluções que atendem às necessidades individuais de hospitais, clínicas, médicos e…”

Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase

Showing 8 of 70 medical diagnostic services based in Rio De Janeiro, Brazil

See the full list, filter by size, metro and specialty, and access 86 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Medical diagnostic services based in Rio De Janeiro, Brazil at a glance

As of Oct 27, 2026
4.2%Verified-email coverage
29.1Average contacts per company
11-50Median size (employees)
Oct 27, 2026Page data refreshed

Companies by employee count

1-10
23
11-50
33
51-200
7
201-500
2
501-1,000
2
1,001-5,000
1
5,001-10,000
1
10001+
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 70 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 “medical diagnostic 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 86 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 October 27, 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 “medical diagnostic services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many medical diagnostic services are there based in Rio De Janeiro, Brazil?

RevenueBase identified 70 company matches for medical diagnostic services associated with Rio De Janeiro, Brazil as of October 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?

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

Which city in Brazil has the most medical diagnostic services?

Sao Paulo leads Brazil with 154 company records, followed by Rio De Janeiro (70) and Belo Horizonte (46).

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 86 professional contacts with verified work emails tracked across these 70 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 October 27, 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.