Company lists · Data refreshed September 2026
Top 25 Oncology medication distributors based in the United States
RevenueBase identified 125 oncology medication distributors headquartered in the United States as of September 2026 and tracks 40,037 professional contacts across them, including 12,490 with verified work emails. Austin is the largest hub.
This list covers oncology medication distributors 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 15, 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.
The 25 largest oncology medication distributors based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 29,843 contacts → | ||||
Partial evidence “Cardinal Health is a distributor of pharmaceuticals and specialty products; a supplier of home-health and direct-to-patient products and services; an operator of nuclear…” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,479 contacts → | ||||
Indirect evidence “Founded in 1988, Enterprises, Inc.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 3 | 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 15, 2026Thanks. The Data Team will review it. | |||||
| 4 | 504 contacts → | ||||
Indirect evidence “Meet the preeminent national specialty pharmacy backing up the ‘fast & easy’ promise with the Power of 2.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 5 | 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 15, 2026Thanks. The Data Team will review it. | |||||
| 6 | 401 contacts → | ||||
Indirect evidence “Known for specialty pharmaceutical distribution and innovative technology, ASD Healthcare provides 24/7 ordering to both pharmacies and health systems providers to ensure patients…” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 7 | 238 contacts → | ||||
Indirect evidence “Biologics by McKesson is an independent specialty pharmacy.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 8 | 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 15, 2026Thanks. The Data Team will review it. | |||||
| 9 | 215 contacts → | ||||
Partial evidence “Nuvation Bio is a global oncology company focused on tackling some of the toughest challenges in cancer treatment with the goal of developing therapies that create a profound…” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 10 | 194 contacts → | ||||
Indirect evidence “Since 1987, TopRx has had one goal: provide customized solutions and outstanding customer support within the generic pharmaceutical industry.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 11 | 186 contacts → | ||||
Partial evidence “California Cancer Associates for Research and Excellence (cCARE), is the largest full-service, private oncology practice in California.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 12 | 183 contacts → | ||||
Partial evidence “Morris & Dickson is the industry’s largest independent full-line and specialty pharmaceutical distributor with a singular focus of reliable, next-day delivery of drugs and related…” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 13 | 121 contacts → | ||||
Partial evidence “Tennessee Cancer Specialists, formed in 2004 through a merger between two well-regarded, Knoxville-based oncology groups-Cancer Care of East Tennessee and East Tennessee Oncology…” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 14 | 117 contacts → | ||||
Partial evidence “Founded in 1967, The Harvard Drug Group has become the second largest generics-focused pharmaceutical distributor in the United States.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 15 | 115 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 16 | 111 contacts → | ||||
Partial evidence “Masters is a national drug distributor specializing in saving time and money for independent, chain, and specialty pharmacies, as well as LTCs and mail-order pharmacies.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 17 | 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 15, 2026Thanks. The Data Team will review it. | |||||
| 18 | 98 contacts → | ||||
Partial evidence “We are a national Specialty Pharmacy company providing medications and support services to patients, prescribers, payers and manufacturers.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 19 | 97 contacts → | ||||
Partial evidence “STAQ Pharma | 503B Outsourcing Supplier Strengthening the Healthcare Supply Chain Our mission is to ensure the reliable supply of critical medications, reducing drug shortages and…” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 20 | 76 contacts → | ||||
Partial evidence “Athenex is a global specialty oncology pharmaceutical company focused on the development and commercialization of next generation therapies for cancer diseases and supportive…” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 21 | 58 contacts → | ||||
Partial evidence “Besse Medical, a part of Cencora (formerly AmerisourceBergen), is one of the nation's largest and most trusted distributors of pharmaceuticals, vaccines, biological and basic…” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 22 | 56 contacts → | ||||
Partial evidence “Independent Pharmacy Distributor is a licensed pharmaceutical wholesaler that distributes FDA approved generic, brand and Over-the Counter products.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 23 | 50 contacts → | ||||
Partial evidence “Prodigy Health, headquartered in Austin, TX, is a national distributor that provides streamlined access to both specialty and generic pharmaceuticals through cutting-edge…” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 24 | 42 contacts → | ||||
Partial evidence “Atlantic Biologicals is a premier distributor of brand, generic and critical care pharmaceuticals.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 25 | 39 contacts → | ||||
Strong evidence “Numed is a NABP-accredited generic medication distributor specializing in Long Term Care, independently owned, and hospital pharmacies.” Source: RevenueBase Database · checked Sep 15, 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 medication distributors. 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 medication distributors.
- Partial evidence
- Its own public description names part of oncology medication distributors, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name oncology medication distributors. 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 125 oncology medication distributors based in the United States
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Oncology medication distributors based in the United States at a glance
As of Sep 15, 2026Companies by employee count
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 125 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 medication distributors, 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 medication distributors”. 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 medication distributors), 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 medication distributors, 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, 12,490 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 15, 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 medication distributors, 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 medication distributors are there based in the United States?
RevenueBase identified 125 oncology medication distributors 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?
Cardinal Health, headquartered in Dublin, tops this list with the largest team on record.
Which city has the most oncology medication distributors?
Austin leads with 3 headquartered companies, followed by Miami (3) and Nashville (3).
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 12,490 verified decision-maker contacts tracked across these 125 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 15, 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.
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