Company lists · Data refreshed September 2026
Top 25 Oncology pharmaceutical manufacturers worldwide
RevenueBase identified 456 oncology pharmaceutical manufacturers worldwide as of September 2026 and tracks 50,557 professional contacts across them, including 13,204 with verified work emails and 0 with mobile numbers. The United States is the largest market and Mumbai the largest hub.
This list covers oncology pharmaceutical manufacturers 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 17, 2026. Country and city lists for oncology pharmaceutical manufacturers 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 oncology pharmaceutical manufacturers worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 3,973 contacts → | ||||
Indirect evidence “At Daiichi Sankyo, we create essential medicine for longer, better lives.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 2 | 3,881 contacts → | ||||
Indirect evidence “Hospira is now part of Pfizer Inc.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 3 | 3,041 contacts → | ||||
Partial evidence “HETERO LABS LIMITED - India is a pharmaceuticals company based out of India.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 4 | 2,570 contacts → | ||||
Indirect evidence “At Eisai Inc, human health care (hhc) is our goal.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 5 | 2,135 contacts → | ||||
Indirect evidence “Effective March 17, 2025, The U.S.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 6 | 2,098 contacts → | ||||
Indirect evidence “We have merged with Bristol Myers Squibb creating a leading biopharma company, ideally positioned to discover, develop and deliver innovative medicines for patients fighting…” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 7 | 1,502 contacts → | ||||
Partial evidence “Eugia Pharma Specialties Ltd, a fully integrated subsidiary of Aurobindo Pharma, specializes in general injectables and oncology, boasting a comprehensive portfolio that spans…” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 8 | 1,426 contacts → | ||||
Indirect 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 17, 2026Thanks. The Data Team will review it. | |||||
| 9 | 885 contacts → | ||||
Partial evidence “Purdue and its subsidiaries develop, manufacture and market medications to meet the evolving needs of healthcare professionals, patients, and caregivers.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 10 | 857 contacts → | ||||
Indirect evidence “Seagen is now part of Pfizer!” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 11 | 677 contacts → | ||||
Partial 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 17, 2026Thanks. The Data Team will review it. | |||||
| 12 | 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 17, 2026Thanks. The Data Team will review it. | |||||
| 13 | 630 contacts → | ||||
Partial 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 17, 2026Thanks. The Data Team will review it. | |||||
| 14 | 605 contacts → | ||||
Partial evidence “SAMARTH LIFE SCIENCES PRIVATE LIMITED is a innovative life science company that researches, develop, manufactures and markets a broad range of life saving critical drugs and other…” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 15 | 529 contacts → | ||||
Indirect evidence “Celon Labs is a leader in the development and marketing of specialty products which serve niche therapy areas.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 16 | 482 contacts → | ||||
Partial evidence “Deciphera, a member of Ono Pharmaceutical Co, Ltd, is a commercial-stage biopharmaceutical company focused on discovering, developing and delivering novel, innovative medicines to…” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 17 | 467 contacts → | ||||
Indirect evidence “In the peculiar twist of fate, India boasts the title of "The world's third-largest producer of generic drugs.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 18 | 408 contacts → | ||||
Indirect evidence “MacroGenics is a leader in the discovery and development of innovative medicines that utilize our next generation antibody-based technologies.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 19 | 406 contacts → | ||||
Indirect 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 17, 2026Thanks. The Data Team will review it. | |||||
| 20 | 405 contacts → | ||||
Partial evidence “The mission of Taiho Oncology, Inc.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 21 | 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 17, 2026Thanks. The Data Team will review it. | |||||
| 22 | 370 contacts → | ||||
Partial evidence “Delcure Lifesciences Limited is an Indian branded formulations pharmaceutical company with global alliances and is working towards bringing differentiated products and services…” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 23 | 336 contacts → | ||||
Partial evidence “Syndax Pharmaceuticals is a commercial-stage biopharmaceutical company advancing innovative cancer therapies.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 24 | 335 contacts → | ||||
Indirect evidence “Neon Antibiotics Pvt.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 25 | 296 contacts → | ||||
Indirect evidence “ADC Therapeutics is a commercial-stage global pioneer in the field of antibody drug conjugates (ADCs).” Source: RevenueBase Database · checked Sep 17, 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: oncology pharmaceutical manufacturers. 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 oncology pharmaceutical manufacturers.
- Partial evidence
- Its own public description names part of oncology pharmaceutical manufacturers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name oncology pharmaceutical manufacturers. 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 456 oncology pharmaceutical manufacturers worldwide
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Oncology pharmaceutical manufacturers worldwide at a glance
As of Sep 17, 2026Companies by employee count
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 oncology pharmaceutical manufacturers, 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
- 4 countries, largest first: the United States, India, China, the United Kingdom. Country and city lists for oncology pharmaceutical manufacturers are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “oncology pharmaceutical manufacturers”. 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 oncology pharmaceutical manufacturers), 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 oncology pharmaceutical manufacturers, 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, 13,204 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.
Oncology pharmaceutical manufacturers by location
4 lists · largest firstEvery Oncology pharmaceutical manufacturers 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 oncology pharmaceutical manufacturers, 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 oncology pharmaceutical manufacturers are there worldwide?
RevenueBase identified 456 oncology pharmaceutical manufacturers 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?
Daiichi Sankyo US, headquartered in Basking Ridge Basking Ridge, tops this list with the largest team on record.
Which country has the most oncology pharmaceutical manufacturers?
The United States leads with 206 companies, followed by India (151) and China (71). Every oncology pharmaceutical manufacturers list by country and city is linked on this page.
Which city has the most oncology pharmaceutical manufacturers?
Mumbai leads with 28 headquartered companies, followed by New Delhi (21) and San Diego (14).
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 13,204 verified decision-maker contacts tracked across these 456 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.