Company lists · Data refreshed September 2026
Top 25 Chemotherapy drug manufacturers worldwide
RevenueBase identified 75 chemotherapy drug manufacturers worldwide as of September 2026 and tracks 11,851 professional contacts across them, including 2,474 with verified work emails and 0 with mobile numbers. India is the largest market and Mumbai the largest hub.
This list covers chemotherapy drug 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 16, 2026. Country and city lists for chemotherapy drug 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 chemotherapy drug manufacturers worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 2,570 contacts → | ||||
Indirect evidence “At Eisai Inc, human health care (hhc) is our goal.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 2 | 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 16, 2026Thanks. The Data Team will review it. | |||||
| 3 | 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 16, 2026Thanks. The Data Team will review it. | |||||
| 4 | 405 contacts → | ||||
Indirect evidence “The mission of Taiho Oncology, Inc.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 5 | 335 contacts → | ||||
Indirect evidence “Neon Antibiotics Pvt.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 6 | 223 contacts → | ||||
Indirect evidence “Loxo@Lilly aims to create medicines that make life better for all those affected by cancer around the world.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 7 | 193 contacts → | ||||
Indirect evidence “WE'RE ALL IN FOR FIGHT AGAINST CANCER Partner Therapeutics is devoted to developing and commercializing cancer medicines and combination therapies that can make a meaningful…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 8 | 186 contacts → | ||||
Indirect evidence “California Cancer Associates for Research and Excellence (cCARE), is the largest full-service, private oncology practice in California.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 9 | 186 contacts → | ||||
Partial evidence “Beta Drugs Ltd.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 10 | 182 contacts → | ||||
Partial evidence “Headquartered in Chennai, India, Teyro Labs is a fast-growing Oncology Product Manufacturing company with a major focus on development and manufacture of IP led niche finished…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 11 | 141 contacts → | ||||
Strong evidence “Leading Manufacturer Exporter of Anticancer Drug formulation of sterile injections and oral solid dosage form” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 12 | 127 contacts → | ||||
Indirect evidence “Eagle is a fully integrated pharmaceutical company with research and development, clinical, manufacturing and commercial expertise.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 13 | 107 contacts → | ||||
Partial evidence “Oncology Supply, a part of Cencora (formerly AmerisourceBergen), has distributed chemotherapy and supportive care products for nearly 40 years to independent oncology practices…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 14 | 101 contacts → | ||||
Partial evidence “Getwell incepted in year 1985, has been working dedicatedly towards innovating, discovering, developing, manufacturing world-class oncology drugs.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 15 | 88 contacts → | ||||
Indirect evidence “Manufacturing and Marketing of Cytotoxic/ Anticancer/ Oncology and Antiviral medicine in all dosage forms like Tablets, Capsules, Liquid Injection, Lyophilised Injection and…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 16 | 57 contacts → | ||||
Indirect evidence “UPDATE: January 1, 2024 - Astex US is now part of Taiho Oncology, Inc.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 17 | 55 contacts → | ||||
Indirect evidence “Empowering lives through innovative healthcare solutions Established in 1991 by visionary entrepreneur Mr.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 18 | 54 contacts → | ||||
Partial evidence “DAVA Oncology was founded in 2007 with the goal of facilitating successful cancer drug development by providing innovative solutions and services to the pharmaceutical and…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 19 | 54 contacts → | ||||
Strong evidence “Zuvius Lifesciences, the manufacturer of the widest range of Anticancer Drugs in the world.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 20 | 27 contacts → | ||||
Indirect evidence “EFFECTIVE, ATTESTED, AND APPROVED MEDICINES | QUALITY STANDARDS HIGH-QUALITY FINISHED DOSAGES FORMULATION | SOLID ORALS (COATED TABLETS, UNCOATED TABLETS, HARD GELATIN CAPSULES)…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 21 | 26 contacts → | ||||
Partial evidence “At Sayre Therapeutics, we focus on bringing hitherto unavailable novel medicines, drug-delivery devices, companion diagnostics and diagnostic imaging agents to medical…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 22 | 17 contacts → | ||||
Indirect evidence “Checkpoint Therapeutics is revolutionizing the way novel treatments for cancer patients are developed.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 23 | 15 contacts → | ||||
Indirect evidence “In July 2021, MorphoSys acquired Constellation Pharmaceuticals.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 24 | 14 contacts → | ||||
Indirect evidence “ESPERER stands for hope.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 25 | 13 contacts → | ||||
Indirect evidence “Symbion Lifesciences stands as a pioneering pharmaceutical firm in Gujarat, driven by innovation and a steadfast commitment to groundbreaking research and superior healthcare…” Source: RevenueBase Database · checked Sep 16, 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: chemotherapy drug 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 chemotherapy drug manufacturers.
- Partial evidence
- Its own public description names part of chemotherapy drug manufacturers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name chemotherapy drug 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 75 chemotherapy drug manufacturers worldwide
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Chemotherapy drug manufacturers worldwide at a glance
As of Sep 16, 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 chemotherapy drug 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
- 2 countries, largest first: India, the United States. Country and city lists for chemotherapy drug manufacturers are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “chemotherapy drug 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 chemotherapy drug 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 chemotherapy drug 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, 2,474 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 16, 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.
Chemotherapy drug manufacturers by location
2 lists · largest firstEvery Chemotherapy drug 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 chemotherapy drug 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 chemotherapy drug manufacturers are there worldwide?
RevenueBase identified 75 chemotherapy drug 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?
Eisai US, headquartered in Nutley, tops this list with the largest team on record.
Which country has the most chemotherapy drug manufacturers?
India leads with 48 companies, followed by the United States (27). Every chemotherapy drug manufacturers list by country and city is linked on this page.
Which city has the most chemotherapy drug manufacturers?
Mumbai leads with 8 headquartered companies, followed by New Delhi (8) and Hyderabad (4).
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 2,474 verified decision-maker contacts tracked across these 75 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 16, 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.