Company lists · Data refreshed September 2026

Top 25 Oncology drug developers based in the United States

RevenueBase identified 929 oncology drug developers headquartered in the United States as of September 2026 and tracks 49,092 professional contacts across them, including 19,296 with verified work emails. San Diego is the largest hub.

This list covers oncology drug developers headquartered in the United States, 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 20, 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 20, 2026 86% judged on-target in blind review
929Companies
49,092Contacts tracked
19,296Verified emails
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The 25 largest oncology drug developers based in the United States

Ranked by team size
Top 25 of 929 oncology drug developers based in the United States, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to oncology drug developers: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceSanta Monica, CA, United StatesHQ checked Sep 20, 20261,001-5,0003,766 contacts →

Indirect evidence

“At Kite, a Gilead Company, our singular focus is achieving cures with cell therapy.”

Source: RevenueBase Database · checked Sep 20, 2026
2Indirect evidenceCambridge, MA, United StatesHQ checked Sep 20, 2026n/a2,135 contacts →

Indirect evidence

“Effective March 17, 2025, The U.S.”

Source: RevenueBase Database · checked Sep 20, 2026
3Indirect evidenceAlameda, CA, United StatesHQ checked Sep 20, 20261,001-5,0001,426 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 20, 2026
4Indirect evidenceRedwood City, CA, United StatesHQ checked Sep 20, 20261,001-5,000879 contacts →

Indirect 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 20, 2026
5Partial evidenceNashville, TN, United StatesHQ checked Sep 20, 2026501-1,000868 contacts →

Partial evidence

“Sarah Cannon Research Institute (SCRI) is one of the world’s leading oncology research organizations, conducting community-based clinical trials.”

Source: RevenueBase Database · checked Sep 20, 2026
6Indirect evidenceBothell, WA, United StatesHQ checked Sep 20, 20261,001-5,000857 contacts →

Indirect evidence

“Seagen is now part of Pfizer!”

Source: RevenueBase Database · checked Sep 20, 2026
7Indirect evidenceSeattle, WA, United StatesHQ checked Sep 20, 20261,001-5,000816 contacts →

Indirect 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 20, 2026
8Partial evidenceAlexandria, VA, United StatesHQ checked Sep 20, 2026201-500751 contacts →

Partial evidence

“Founded in 1964, the American Society of Clinical Oncology (ASCO) is committed to making a world of difference in cancer care.”

Source: RevenueBase Database · checked Sep 20, 2026
9Indirect evidenceHouston, TX, United StatesHQ checked Sep 20, 2026n/a683 contacts →

Indirect 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 20, 2026
10Indirect evidenceNew York, NY, United StatesHQ checked Sep 20, 2026501-1,000677 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 20, 2026
11Indirect evidenceSeal Beach, CA, United StatesHQ checked Sep 20, 2026501-1,000637 contacts →

Indirect evidence

“Dendreon is a commercial-stage biopharmaceutical company and pioneer in the development of immunotherapy.”

Source: RevenueBase Database · checked Sep 20, 2026
12Indirect evidenceHayward, CA, United StatesHQ checked Sep 20, 2026501-1,000632 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 20, 2026
13Partial evidenceLouisville, KY, United StatesHQ checked Sep 20, 2026501-1,000630 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 20, 2026
14Indirect evidenceWaltham, MA, United StatesHQ checked Sep 20, 2026201-500482 contacts →

Indirect 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 20, 2026
15Indirect evidenceWoburn, MA, United StatesHQ checked Sep 20, 2026201-500479 contacts →

Indirect evidence

“Replimune's mission is to revolutionize cancer treatment with therapies designed to activate a powerful and durable full-body anti-tumor response.”

Source: RevenueBase Database · checked Sep 20, 2026
16Partial evidenceSan Diego, CA, United StatesHQ checked Sep 20, 20261,001-5,000441 contacts →

Partial evidence

“Crown Bioscience, a JSR Life Sciences company, is a global contract research organization (CRO) providing discovery, preclinical, and translational platforms to advance oncology…”

Source: RevenueBase Database · checked Sep 20, 2026
17Indirect evidenceMillbrae, CA, United StatesHQ checked Sep 20, 2026201-500423 contacts →

Indirect evidence

“Eikon Therapeutics is a late-stage clinical biopharmaceutical company advancing a pipeline of potential therapies for patients with unmet medical needs.”

Source: RevenueBase Database · checked Sep 20, 2026
18Indirect evidenceRockville, MD, United StatesHQ checked Sep 20, 2026201-500408 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 20, 2026
19Partial evidencePrinceton, NJ, United StatesHQ checked Sep 20, 2026201-500405 contacts →

Partial evidence

“The mission of Taiho Oncology, Inc.”

Source: RevenueBase Database · checked Sep 20, 2026
20Indirect evidenceNew York, NY, United StatesHQ checked Sep 20, 202651-200336 contacts →

Indirect evidence

“Syndax Pharmaceuticals is a commercial-stage biopharmaceutical company advancing innovative cancer therapies.”

Source: RevenueBase Database · checked Sep 20, 2026
21Indirect evidencePrinceton, NJ, United StatesHQ checked Sep 20, 202651-200316 contacts →

Indirect evidence

“UroGen Pharma is a biotech company that builds novel solutions to revolutionize the way specialty cancers and urologic diseases are treated – because patients deserve better…”

Source: RevenueBase Database · checked Sep 20, 2026
22Partial evidenceSan Diego, CA, United StatesHQ checked Sep 20, 2026201-500294 contacts →

Partial evidence

“Kura Oncology is a commercial-stage biopharmaceutical company committed to discovering and developing innovative precision medicines to help patients with cancer lead better…”

Source: RevenueBase Database · checked Sep 20, 2026
23Indirect evidenceSouth San Francisco, CA, United StatesHQ checked Sep 20, 2026201-500282 contacts →

Indirect evidence

“Sutro Biopharma, Inc, is relentlessly focused on the discovery and development of precisely designed cancer therapeutics to transform what science can do for patients.”

Source: RevenueBase Database · checked Sep 20, 2026
24Partial evidenceChicago, IL, United StatesHQ checked Sep 20, 2026201-500280 contacts →

Partial evidence

“Vaniam Group is the integrated oncology organization built for what’s next, built on twenty years of scientific depth, sustained engagement across the oncology community, and…”

Source: RevenueBase Database · checked Sep 20, 2026
25Indirect evidenceSan Antonio, TX, United StatesHQ checked Sep 20, 2026201-500267 contacts →

Indirect evidence

“At The START Center for Cancer Care our mission is to deliver high-quality care for our patients, accelerate the development of new cancer treatments, and provide hope for those…”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 25 of 929 oncology drug developers based in the United States

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Oncology drug developers based in the United States at a glance

As of Sep 20, 2026
39.3%Verified-email coverage
52.8Average contacts per company
11-50Median size (employees)
7.5%Largest-city concentration · San Diego
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
424
11-50
304
51-200
120
201-500
36
501-1,000
21
1,001-5,000
15
5,001-10,000
3
10001+
4

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 929 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 oncology drug developers, 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 the United States whose own description of what they do matches “oncology drug developers”. 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 drug developers), 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 drug developers, and records with no verified work email. Companies headquartered outside United States 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, 19,296 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 20, 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 oncology drug developers, 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 drug developers are there based in the United States?

RevenueBase identified 929 oncology drug developers headquartered in the United States 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?

Kite Pharma, headquartered in Santa Monica, tops this list with the largest team on record.

Which city has the most oncology drug developers?

San Diego leads with 70 headquartered companies, followed by Cambridge (58) and New York (48).

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 19,296 verified decision-maker contacts tracked across these 929 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 20, 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.