Company lists · Data refreshed September 2026

Top 25 Oncology companies based in the United States

Name: Oncology companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 2,033 companies tracked

RevenueBase identified 2,033 oncology companies headquartered in the United States as of September 2026 and tracks 211,566 professional contacts across them, including 89,183 with verified work emails. San Diego is the largest hub.

This list covers oncology companies 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

2,033Companies

211,566Contacts tracked

89,183Verified emails

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The 25 largest oncology companies based in the United States

Ranked by team size

Top 25 of 2,033 oncology companies 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 companies: 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	Bristol Myers Squibb	Indirect evidence	Lawrence Township, NJ, United StatesHQ checked Sep 20, 2026	10001+	36,379 contacts →
	Indirect evidence “At Bristol Myers Squibb, we work every day to transform patients’ lives through science.” Source: RevenueBase Database · checked Sep 20, 2026
2	Gilead Sciences	Indirect evidence	Foster City, CA, United StatesHQ checked Sep 20, 2026	10001+	13,864 contacts →
	Indirect evidence “At Gilead, we set – and achieve – bold ambitions to create a healthier world for all people.” Source: RevenueBase Database · checked Sep 20, 2026
3	Varian	Indirect evidence	Palo Alto, CA, United StatesHQ checked Sep 20, 2026	10001+	8,815 contacts →
	Indirect evidence “At Varian, a Siemens Healthineers company, we envision a world without fear of cancer.” Source: RevenueBase Database · checked Sep 20, 2026
4	Dana-Farber Cancer Institute	Indirect evidence	Boston, MA, United StatesHQ checked Sep 20, 2026	1,001-5,000	8,287 contacts →
	Indirect evidence “Dana-Farber Cancer Institute is committed to providing expert, compassionate care to children and adults with cancer, while advancing the understanding, treatment, cure, and…” Source: RevenueBase Database · checked Sep 20, 2026
5	Exact Sciences	Indirect evidence	Madison, WI, United StatesHQ checked Sep 20, 2026	5,001-10,000	5,907 contacts →
	Indirect evidence “Exact Sciences is now @Abbott.” Source: RevenueBase Database · checked Sep 20, 2026
6	Fred Hutch	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 20, 2026	1,001-5,000	4,956 contacts →
	Indirect evidence “Fred Hutch is an independent, nonprofit organization that also serves as the cancer program for UW Medicine.” Source: RevenueBase Database · checked Sep 20, 2026
7	Driver	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 20, 2026	n/a	4,014 contacts →
	Indirect evidence “Based in San Francisco and Shanghai, Driver is a technology platform that connects cancer patients to treatments and knowledge, all over the world, to get more life.” Source: RevenueBase Database · checked Sep 20, 2026
8	Kite Pharma	Indirect evidence	Santa Monica, CA, United StatesHQ checked Sep 20, 2026	1,001-5,000	3,766 contacts →
	Indirect evidence “At Kite, a Gilead Company, our singular focus is achieving cures with cell therapy.” Source: RevenueBase Database · checked Sep 20, 2026
9	Guardant Health	Indirect evidence	Palo Alto, CA, United StatesHQ checked Sep 20, 2026	1,001-5,000	3,321 contacts →
	Indirect evidence “Guardant Health is a leading precision medicine company focused on guarding wellness and giving every person more time free from cancer.” Source: RevenueBase Database · checked Sep 20, 2026
10	Florida Cancer Specialists & Research Institute	Strong evidence	Fort Myers, FL, United StatesHQ checked Sep 20, 2026	1,001-5,000	2,591 contacts →
	Strong evidence “Founded in 1984, Florida Cancer Specialists & Research Institute (FCS) is the largest independent medical oncology/hematology practice in the United States.” Source: RevenueBase Database · checked Sep 20, 2026
11	Eisai US	Indirect evidence	Nutley, NJ, United StatesHQ checked Sep 20, 2026	1,001-5,000	2,570 contacts →
	Indirect evidence “At Eisai Inc, human health care (hhc) is our goal.” Source: RevenueBase Database · checked Sep 20, 2026
12	Beigene	Indirect evidence	Cambridge, MA, United StatesHQ checked Sep 20, 2026	n/a	2,135 contacts →
	Indirect evidence “Effective March 17, 2025, The U.S.” Source: RevenueBase Database · checked Sep 20, 2026
13	Curium Pharma	Indirect evidence	Boston, MA, United StatesHQ checked Sep 20, 2026	1,001-5,000	1,959 contacts →
	Indirect evidence “Curium is the global leader in nuclear medicine, providing life-changing diagnostics and treatment to patients all over the world.” Source: RevenueBase Database · checked Sep 20, 2026
14	Precision For Medicine	Indirect evidence	Bethesda, MD, United StatesHQ checked Sep 20, 2026	1,001-5,000	1,781 contacts →
	Indirect evidence “Precision for Medicine is an industry-leading global clinical research services organization, purpose-built to improve the clinical research and development process for new…” Source: RevenueBase Database · checked Sep 20, 2026
15	Foundation Medicine	Indirect evidence	Boston, MA, United StatesHQ checked Sep 20, 2026	1,001-5,000	1,747 contacts →
	Indirect evidence “Foundation Medicine is a global, patient-focused precision medicine company delivering high-quality, transformative diagnostic solutions in cancer and other diseases.” Source: RevenueBase Database · checked Sep 20, 2026
16	Neogenomics Laboratories	Indirect evidence	Fort Myers, FL, United StatesHQ checked Sep 20, 2026	1,001-5,000	1,678 contacts →
	Indirect evidence “Our vision: A world where every cancer treatment decision is as personal as the patient.” Source: RevenueBase Database · checked Sep 20, 2026
17	Caris Life Sciences	Indirect evidence	Irving, TX, United StatesHQ checked Sep 20, 2026	1,001-5,000	1,556 contacts →
	Indirect evidence “Caris Life Sciences® (Caris) is the leading next-generation TechBio company and precision medicine pioneer that is actively developing and delivering innovative solutions to…” Source: RevenueBase Database · checked Sep 20, 2026
18	Flatiron Health	Indirect evidence	New York, NY, United StatesHQ checked Sep 20, 2026	1,001-5,000	1,516 contacts →
	Indirect evidence “Flatiron Health’s mission is to improve and extend lives by learning from the experience of every person with cancer.” Source: RevenueBase Database · checked Sep 20, 2026
19	Exelixis	Indirect evidence	Alameda, CA, United StatesHQ checked Sep 20, 2026	1,001-5,000	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 20, 2026
20	Lantheus	Indirect evidence	Bedford, MA, United StatesHQ checked Sep 20, 2026	501-1,000	1,278 contacts →
	Indirect evidence “Lantheus is the leading radiopharmaceutical-focused company, delivering life-changing science to enable clinicians to Find, Fight and Follow disease to deliver better patient…” Source: RevenueBase Database · checked Sep 20, 2026
21	GRAIL	Indirect evidence	Menlo Park, CA, United StatesHQ checked Sep 20, 2026	1,001-5,000	1,037 contacts →
	Indirect evidence “Our mission is to detect cancer early, when it can be cured.” Source: RevenueBase Database · checked Sep 20, 2026
22	Accuray	Indirect evidence	Madison, WI, United StatesHQ checked Sep 20, 2026	501-1,000	1,021 contacts →
	Indirect evidence “We work passionately to expand the curative power of radiation therapy to improve as many lives as possible.#AccurayExpandRT #CyberKnife #Radixact #TomoTherapy #AccurayExchange” Source: RevenueBase Database · checked Sep 20, 2026
23	Iovance Biotherapeutics, INC	Indirect evidence	San Carlos, CA, United StatesHQ checked Sep 20, 2026	501-1,000	985 contacts →
	Indirect evidence “Iovance Biotherapeutics (NASDAQ: IOVA) aims to be the global leader in innovating, developing and delivering tumor infiltrating lymphocyte (TIL) therapies for patients with cancer.” Source: RevenueBase Database · checked Sep 20, 2026
24	21st Century Oncology	Indirect evidence	Fort Myers, FL, United StatesHQ checked Sep 20, 2026	1,001-5,000	925 contacts →
	Indirect evidence “At GenesisCare, we offer multidisciplinary personalized cancer treatments based on individual patient needs.” Source: RevenueBase Database · checked Sep 20, 2026
25	Revolution Medicines	Indirect evidence	Redwood City, CA, United StatesHQ checked Sep 20, 2026	1,001-5,000	879 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

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 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 oncology companies.
Partial evidence: Its own public description names part of oncology companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name oncology 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 2,033 oncology companies based in the United States

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Oncology companies based in the United States at a glance

As of Sep 20, 2026

42.2%Verified-email coverage

104.1Average contacts per company

11-50Median size (employees)

5.1%Largest-city concentration · San Diego

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

822

11-50

642

51-200

336

201-500

106

501-1,000

1,001-5,000

5,001-10,000

10001+

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 2,033 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 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.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “oncology 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 oncology 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 oncology companies, 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, 89,183 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.

Oncology companies by metro

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 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 oncology companies are there based in the United States?

RevenueBase identified 2,033 oncology companies 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?

Bristol Myers Squibb, headquartered in Lawrence Township, tops this list with the largest team on record.

Which city has the most oncology companies?

San Diego leads with 104 headquartered companies, followed by Cambridge (91) and New York (83).

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 89,183 verified decision-maker contacts tracked across these 2,033 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.