Company lists · Data refreshed September 2026

Top 25 Medical oncology practices based in Brazil

Name: Medical oncology practices based in Brazil
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 199 companies tracked

RevenueBase identified 199 medical oncology practices headquartered in Brazil as of September 2026 and tracks 8,431 professional contacts across them, including 726 with verified work emails. Sao Paulo is the largest hub.

This list covers medical oncology practices 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 17, 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 17, 2026 86% judged on-target in blind review

199Companies

8,431Contacts tracked

726Verified emails

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The 25 largest medical oncology practices based in Brazil

Ranked by team size

Top 25 of 199 medical oncology practices based in Brazil, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to medical oncology practices: 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	Oncologia D'or	Partial evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	1,001-5,000	761 contacts →
	Partial evidence “Fundada em 2011, a Oncologia D’Or é composta por clínicas focadas no diagnóstico e tratamento do câncer e de doenças hematológicas, com padrão de qualidade reconhecido…” Source: RevenueBase Database · checked Sep 17, 2026
2	Ibcc Oncologia	Partial evidence	São Paulo, BrazilHQ checked Sep 17, 2026	1,001-5,000	686 contacts →
	Partial evidence “Fundada em 1.968, o IBCC Oncologia é conhecida por ser um Centro de Tratamento Oncológico de alta complexidade e possuir um Centro de Pesquisa Clínica com mais de 130 estudos…” Source: RevenueBase Database · checked Sep 17, 2026
3	Instituto Goiano DE Oncologia E Hematologia Ingoh	Indirect evidence	Goiânia, BrazilHQ checked Sep 17, 2026	201-500	294 contacts →
	Indirect evidence “O INGOH é um lugar onde cada vida conta.” Source: RevenueBase Database · checked Sep 17, 2026
4	Oncologia Americas	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	201-500	269 contacts →
	Indirect evidence “Com quase três décadas de experiência no combate ao câncer, oferecemos uma linha completa de cuidados, do diagnóstico ao tratamento, em um modelo de assistência que une…” Source: RevenueBase Database · checked Sep 17, 2026
5	Hemolabor	Indirect evidence	Goiânia, BrazilHQ checked Sep 17, 2026	201-500	240 contacts →
	Indirect evidence “Há cinco décadas, o Hemolabor tem um propósito que atravessa gerações: cuidar da vida em todas as suas fases.” Source: RevenueBase Database · checked Sep 17, 2026
6	Cetus Oncologia	Partial evidence	Belo Horizonte, BrazilHQ checked Sep 17, 2026	51-200	106 contacts →
	Partial evidence “Desde 2006, a clínica Cetus Oncologia viabiliza soluções em diagnóstico e tratamento de câncer, com unidades em Belo Horizonte, Betim e Contagem.” Source: RevenueBase Database · checked Sep 17, 2026
7	Hemomed Oncologia E Hematologia	Partial evidence	São Paulo, BrazilHQ checked Sep 17, 2026	51-200	96 contacts →
	Partial evidence “A Hemomed Oncologia, com base em 20 anos de experiência na gestão de Oncologia, monitora rigorosamente seus processos através de protocolos institucionais, equipe especializada e…” Source: RevenueBase Database · checked Sep 17, 2026
8	Pronutrir Oncologia E Nutrição	Partial evidence	Fortaleza, BrazilHQ checked Sep 17, 2026	51-200	93 contacts →
	Partial evidence “A Pronutrir atua em Oncologia Clínica e Cirúrgica e tem equipe com especialistas de praticamente todas as áreas afins à Oncologia.” Source: RevenueBase Database · checked Sep 17, 2026
9	Instituto DO Radium DE Campinas Ltda	Partial evidence	Campinas, BrazilHQ checked Sep 17, 2026	51-200	78 contacts →
	Partial evidence “Instituto do Radium de Campinas (Radium Instituto de Oncologia) é um centro de tratamento oncológico, localizado na Av.” Source: RevenueBase Database · checked Sep 17, 2026
10	Clínica Soma	Indirect evidence	Florianópolis, BrazilHQ checked Sep 17, 2026	201-500	75 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
11	Cebrom Medicina Oncológica	Partial evidence	Goiania, BrazilHQ checked Sep 17, 2026	51-200	64 contacts →
	Partial evidence “CEBROM foi inaugurado em abril de 1998 com o objetivo de oferecer um tratamento de alta qualidade técnica na área de Oncologia.” Source: RevenueBase Database · checked Sep 17, 2026
12	Centro DE Oncologia DO Paraná	Indirect evidence	Curitiba, BrazilHQ checked Sep 17, 2026	51-200	58 contacts →
	Indirect evidence “Desde 1991 dedicando-se ao tratamento de câncer.” Source: RevenueBase Database · checked Sep 17, 2026
13	Instituto DE Câncer DE Brasilia	Partial evidence	Brasília, BrazilHQ checked Sep 17, 2026	51-200	57 contacts →
	Partial evidence “Além de oferecer o mais moderno e adequado tratamento ao paciente com câncer, o ICB Medicina Especializada disponibiliza profissionais altamente capacitados, em diferentes…” Source: RevenueBase Database · checked Sep 17, 2026
14	Honcord	Indirect evidence	Goiânia, BrazilHQ checked Sep 17, 2026	51-200	54 contacts →
	Indirect evidence “A Honcord é um centro de saúde especializado em atendimento oncológico, hematológico e hemoterápico.” Source: RevenueBase Database · checked Sep 17, 2026
15	CIONC	Partial evidence	Curitiba, BrazilHQ checked Sep 17, 2026	11-50	50 contacts →
	Partial evidence “O Centro Integrado de Oncologia de Curitiba – CIONC atua desde 2005 no tratamento do câncer.” Source: RevenueBase Database · checked Sep 17, 2026
16	Instituto DO Câncer Brasil- IC Brasil	Indirect evidence	Três Lagoas, BrazilHQ checked Sep 17, 2026	11-50	39 contacts →
	Indirect evidence “Quem somos: O Instituto do Câncer Brasil é uma empresa médica especializada na criação e gerenciamento de serviços oncológicos em todo o território nacional.” Source: RevenueBase Database · checked Sep 17, 2026
17	CECAN	Indirect evidence	Piracicaba, BrazilHQ checked Sep 17, 2026	51-200	26 contacts →
	Indirect evidence “Atendimento integral a Pacientes com diagnóstico de Câncer.” Source: RevenueBase Database · checked Sep 17, 2026
18	CEOF	Partial evidence	Florianópilis, BrazilHQ checked Sep 17, 2026	11-50	25 contacts →
	Partial evidence “O CEOF – Centro Especializado de Oncologia de Florianópolis – foi criado pelo oncologista Marcelo Collaço Paulo, com o objetivo de oferecer aos pacientes e profissionais de saúde…” Source: RevenueBase Database · checked Sep 17, 2026
19	Grupo Oncolog Medicamentos Especiais	Partial evidence	São Caetano Do Sul, BrazilHQ checked Sep 17, 2026	11-50	23 contacts →
	Partial evidence “Medicamentos Especiais” Source: RevenueBase Database · checked Sep 17, 2026
20	Liga Paranaense DE Combate AO C̢ncer	Indirect evidence	Curitiba, BrazilHQ checked Sep 17, 2026	51-200	23 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
21	Oncocamp	Partial evidence	Campinas, BrazilHQ checked Sep 17, 2026	11-50	19 contacts →
	Partial evidence “A Oncocamp é uma clinica de atendimento multidisciplinar em Oncologia e atende pacientes com diagnóstico de Câncer, atuando também no diagnóstico precoce.” Source: RevenueBase Database · checked Sep 17, 2026
22	Hematologica	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 17, 2026	11-50	19 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
23	Oncotrata Clínica Médica	Indirect evidence	Porto Alegre, BrazilHQ checked Sep 17, 2026	11-50	17 contacts →
	Indirect evidence “A Oncotrata é uma clínica médica referência nos tratamentos oncológico e imunobiológico cujo propósito é oferecer o mais avançado tratamento médico aliado às terapias…” Source: RevenueBase Database · checked Sep 17, 2026
24	Oncomed Clinica Oncologica	Indirect evidence	Niterói, BrazilHQ checked Sep 17, 2026	51-200	17 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
25	Centro Oncológico Devita	Partial evidence	Sorocaba, BrazilHQ checked Sep 17, 2026	11-50	17 contacts →
	Partial evidence “Desde sua fundação, em 2012, o Centro Oncológico Devita é referência em Sorocaba e região em atendimento humanizado e de excelência em Oncologia.” Source: RevenueBase Database · checked Sep 17, 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: medical oncology practices. 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 medical oncology practices.
Partial evidence: Its own public description names part of medical oncology practices, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name medical oncology practices. 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 199 medical oncology practices based in Brazil

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Medical oncology practices based in Brazil at a glance

As of Sep 17, 2026

8.6%Verified-email coverage

42.4Average contacts per company

11-50Median size (employees)

11.1%Largest-city concentration · Sao Paulo

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

Email recency for this list is measured worldwide rather than for Brazil, so it is reported there. Company counts and contact totals on this page are exact for Brazil, over 199 companies.

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 medical oncology practices, 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 “medical oncology practices”. 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 medical oncology practices), 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 medical oncology practices, 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, 726 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 17, 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 medical oncology practices, 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 medical oncology practices are there based in Brazil?

RevenueBase identified 199 medical oncology practices 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?

Oncologia D'or, headquartered in Rio De Janeiro, tops this list with the largest team on record.

Which city has the most medical oncology practices?

Sao Paulo leads with 22 headquartered companies, followed by Curitiba (9) and Fortaleza (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 726 verified decision-maker contacts tracked across these 199 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 17, 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.