Company lists · Data refreshed September 2026
Top 25 Cancer treatment companies worldwide
RevenueBase identified 1,333 cancer treatment companies worldwide as of September 2026 and tracks 96,480 professional contacts across them, including 24,090 with verified work emails. The United States is the largest market and San Diego the largest hub.
This list covers cancer treatment companies worldwide, 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 19, 2026. Country and city lists for cancer treatment companies follow the table.
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.
The 25 largest cancer treatment companies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 8,815 contacts → | ||||
Partial evidence “At Varian, a Siemens Healthineers company, we envision a world without fear of cancer.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 4,956 contacts → | ||||
Partial evidence “Fred Hutch is an independent, nonprofit organization that also serves as the cancer program for UW Medicine.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 2,911 contacts → | ||||
Indirect evidence “Na década de 1960, o único hospital especializado para tratamento de câncer estava na capital do estado de São Paulo e os pacientes que apareciam com a doença, no Hospital São…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 2,135 contacts → | ||||
Indirect evidence “Effective March 17, 2025, The U.S.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 1,919 contacts → | ||||
Partial evidence “GenesisCare is a provider of integrated cancer care in Australia, Spain, and the U.K.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 1,580 contacts → | ||||
Indirect evidence “At Novartis, our mission is to discover new ways to improve and extend people's lives.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 1,447 contacts → | ||||
Partial evidence “Novocure is a global oncology company working to extend survival in some of the most aggressive forms of cancer through the development and commercialization of its innovative…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 1,443 contacts → | ||||
Indirect evidence “Icon Group is a leading integrated healthcare provider with global reach across Australia, New Zealand, ASEAN, the United Kingdom and Germany.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 1,426 contacts → | ||||
Strong evidence “Every Exelixis employee is united in an ambitious cause: to transform science into new treatments that give cancer patients and their families hope for the future.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 1,364 contacts → | ||||
Strong evidence “The IEO European Institute of Oncology is a Research Hospital (IRCCS) dedicated to the treatment of cancer.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 1,021 contacts → | ||||
Partial evidence “HealthCare Global Enterprises Ltd, headquartered in Bangalore is India's largest Cancer Care Provider.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 879 contacts → | ||||
Partial evidence “We are Revolutionaries – passionate in our singular pursuit of discovering, developing and delivering innovative, targeted medicines for patients living with cancer.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 816 contacts → | ||||
Partial evidence “Following the merger of long-time partners, Fred Hutchinson Cancer Research Center and Seattle Cancer Care Alliance to form Fred Hutchinson Cancer Center, this page will no longer…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 709 contacts → | ||||
Indirect evidence “VERSION FRANCAISE Centre multidisciplinaire intégré, unique en Belgique et reconnu internationalement, l’Institut Jules Bordet est un hôpital entièrement consacré aux patients…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 686 contacts → | ||||
Indirect 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 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 683 contacts → | ||||
Partial evidence “UT MD ANDERSON CANCER CENTER is a hospital & health care company based out of 1515 HOLCOMBE BLVD, Houston, Texas, United States.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 677 contacts → | ||||
Indirect evidence “The Menarini Group ("Menarini"), a leading Italian pharmaceutical and diagnostics company, and Stemline Therapeutics, Inc.("Stemline"), a wholly-owned subsidiary of the Menarini…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 632 contacts → | ||||
Indirect evidence “Arcus Biosciences is a rapidly growing, clinical-stage, global biopharmaceutical company developing differentiated molecules and combination medicines that may have the potential…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 630 contacts → | ||||
Indirect evidence “Onco360 is recognized as one of the nation's leading independent specialty pharmacies dedicated exclusively to oncology and rare disease patients.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 523 contacts → | ||||
Indirect evidence “Welcome to Cytecare Hospitals, the leading patient-centric healthcare provider in Bangalore, India.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 428 contacts → | ||||
Indirect evidence “Headquartered in Madrid, PharmaMar is a biopharmaceutical company, focused on oncology and committed to research and development which takes its inspiration from the sea to…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 418 contacts → | ||||
Partial evidence “It is estimated that there are 2.25 million cases of cancer in India every year, which doubles every 10 years.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 406 contacts → | ||||
Strong evidence “Founded in 2001, we are a clinical stage biotech company committed to bringing novel and effective therapeutics for the treatment of cancer.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 405 contacts → | ||||
Indirect evidence “The mission of Taiho Oncology, Inc.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 404 contacts → | ||||
Partial evidence “Founded in 2007, The Oncology Institute (NASDAQ: TOI) is advancing oncology by delivering highly specialized, value-based cancer care in the community setting.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
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: cancer treatment 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 cancer treatment companies.
- Partial evidence
- Its own public description names part of cancer treatment companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name cancer treatment 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 1,333 cancer treatment companies worldwide
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Cancer treatment companies worldwide at a glance
As of Sep 19, 2026Companies by employee count
Email recency is reported on each country list linked below.
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 cancer treatment 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.
- Coverage
- Every country. Country and city lists for cancer treatment companies are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “cancer treatment 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 cancer treatment 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 cancer treatment companies, and records with no verified work email.
- 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, 24,090 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 19, 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.
Cancer treatment companies by location
5 lists · largest firstEvery Cancer treatment companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
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 cancer treatment 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 cancer treatment companies are there worldwide?
RevenueBase identified 1,333 cancer treatment companies worldwide 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?
Varian, headquartered in Palo Alto, tops this list with the largest team on record.
Which country has the most cancer treatment companies?
The United States leads with 481 companies, followed by Brazil (102) and India (102). Every cancer treatment companies list by country and city is linked on this page.
Which city has the most cancer treatment companies?
San Diego leads with 27 headquartered companies, followed by New York (22) and Cambridge (20).
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 24,090 verified decision-maker contacts tracked across these 1,333 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 19, 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.