Company lists · Data refreshed September 2026

Top 25 Rare disease pharmaceutical companies based in the United States

RevenueBase identified 362 company matches for rare disease pharmaceutical companies associated with the United States as of September 2026 and tracks 190,245 professional contacts across them, including 81,950 with verified work emails. New York is the largest hub.

This list covers company matches for rare disease pharmaceutical companies associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 17, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 17, 2026 How this list was built
362Companies
190,245Contacts tracked
81,950Verified emails
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The 25 largest rare disease pharmaceutical companies based in the United States

Ranked by team size
Top 25 of 362 company matches for rare disease pharmaceutical companies based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchLawrence Township, NJ, United StatesHQ recorded Sep 17, 202610001+36,379 contacts →

Exact match

“At Bristol Myers Squibb, we work every day to transform patients’ lives through science.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
2Exact matchTitusville, NJ, United StatesHQ recorded Sep 17, 202610001+26,637 contacts →

Exact match

“At Johnson & Johnson Innovative Medicine, we innovate with purpose, to lead where medicine is going.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
3Exact matchSouth San Francisco, CA, United StatesHQ recorded Sep 17, 202610001+17,217 contacts →

Exact match

“About Genentech We're passionate about finding solutions for people facing the world's most difficult-to-treat conditions.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
4Exact matchTarrytown, NY, United StatesHQ recorded Sep 17, 202610001+16,043 contacts →

Exact match

“At Regeneron we believe that when the right idea finds the right team, powerful change is possible.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5Exact matchCambridge, MA, United StatesHQ recorded Sep 17, 20265,001-10,00010,389 contacts →

Exact match

“Founded in 1978, Biogen is a leading biotechnology company that pioneers innovative science to deliver new medicines to transform patients’ lives and to create value for…”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6Exact matchBoston, MA, United StatesHQ recorded Sep 17, 20265,001-10,0008,099 contacts →

Exact match

“Vertex is a global biotechnology company that invests in scientific innovation to create transformative medicines for people with serious diseases and has made significant…”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7Exact matchBoston, MA, United StatesHQ recorded Sep 17, 20261,001-5,0006,136 contacts →

Exact match

“Alexion, AstraZeneca Rare Disease is focused on pioneering new possibilities for the rare disease community.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8Exact matchSan Rafael, CA, United StatesHQ recorded Sep 17, 20261,001-5,0003,943 contacts →

Exact match

“Founded in 1997, BioMarin is a global biotechnology company dedicated to transforming lives through genetic discovery.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9Exact matchNutley, NJ, United StatesHQ recorded Sep 17, 20261,001-5,0002,570 contacts →

Exact match

“At Eisai Inc, human health care (hhc) is our goal.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10Exact matchBoston, MA, United StatesHQ recorded Sep 17, 20261,001-5,0001,578 contacts →

Exact match

“We aspire to create, improve and prolong life for people living with difficult-to-treat conditions like infertility, multiple sclerosis and cancer.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
11Exact matchMorrisville, NC, United StatesHQ recorded Sep 17, 202610001+1,569 contacts →

Exact match

“Syneos Health® is a leading fully integrated biopharmaceutical solutions organization built to accelerate customer success.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12Exact matchNovato, CA, United StatesHQ recorded Sep 17, 20261,001-5,0001,556 contacts →

Exact match

“Leading with purpose.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13Exact matchBridgewater Township, NJ, United StatesHQ recorded Sep 17, 20261,001-5,0001,512 contacts →

Exact match

“Insmed is a people-rst global biopharmaceutical company striving to deliver rst- and best-in-class therapies to transform the lives of patients facing serious diseases.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14Exact matchWarren, NJ, United StatesHQ recorded Sep 17, 2026501-1,0001,212 contacts →

Exact match

“PTC is a patient-centered biopharmaceutical company focused on discovering, developing & commercializing medicine for children and adults living with rare and serious disease.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15Exact matchStamford, CT, United StatesHQ recorded Sep 17, 2026501-1,000885 contacts →

Exact match

“Purdue and its subsidiaries develop, manufacture and market medications to meet the evolving needs of healthcare professionals, patients, and caregivers.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16Exact matchPalo Alto, CA, United StatesHQ recorded Sep 17, 2026501-1,000837 contacts →

Exact match

“We exist to bring transformative medicines to people living with genetic conditions.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17Exact matchWaltham, MA, United StatesHQ recorded Sep 17, 2026501-1,000823 contacts →

Exact match

“Apellis is now part of Biogen.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18Exact matchWoburn, MA, United StatesHQ recorded Sep 17, 2026501-1,000790 contacts →

Exact match

“Azurity Pharmaceuticals is a privately held global pharmaceutical company dedicated to redefining medicine for the real world.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19Exact matchPrinceton, NJ, United StatesHQ recorded Sep 17, 2026501-1,000727 contacts →

Exact match

“Kyowa Kirin is a global specialty pharmaceutical company that applies state-of-the-art biotechnologies to discover and deliver novel medicines.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20Exact matchPasadena, CA, United StatesHQ recorded Sep 17, 2026501-1,000657 contacts →

Exact match

“Arrowhead Pharmaceuticals is a clinical stage, Nasdaq listed (ticker ARWR) company developing medicines that treat intractable diseases by silencing the genes that cause them.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21Exact matchPrinceton, NJ, United StatesHQ recorded Sep 17, 2026501-1,000625 contacts →

Exact match

“ANI Pharmaceuticals, Inc.(Nasdaq: ANIP) is a diversified biopharmaceutical company committed to its mission of “Serving Patients, Improving Lives" by developing, manufacturing…”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22Exact matchCambridge, MA, United StatesHQ recorded Sep 17, 2026501-1,000603 contacts →

Exact match

“Agios is a commercial-stage biopharmaceutical company dedicated to redefining the future of rare disease treatment.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23Exact matchPittsburgh, PA, United StatesHQ recorded Sep 17, 2026501-1,000582 contacts →

Exact match

“PANTHERx Rare makes rare disease care more hyper-personalized and less overwhelming by focusing relentlessly on each patient and each therapy.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24Exact matchWashington, DC, United StatesHQ recorded Sep 17, 2026201-500575 contacts →

Exact match

“Vanda is a leading global biopharmaceutical company focused on the development and commercialization of innovative therapies to address high unmet medical needs and improve the…”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25Exact matchWaltham, MA, United StatesHQ recorded Sep 17, 2026201-500548 contacts →

Exact match

“At AMAG, aiming higher is in our DNA.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase

Showing 25 of 362 rare disease pharmaceutical companies based in the United States

See the full list, filter by size, metro and specialty, and access 81,950 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Rare disease pharmaceutical companies based in the United States at a glance

As of Sep 17, 2026
43.1%Verified-email coverage
525.5Average contacts per company
11-50Median size (employees)
5.5%Largest-city concentration · New York
Sep 17, 2026Page data refreshed

Companies by employee count

1-10
124
11-50
107
51-200
60
201-500
35
501-1,000
14
1,001-5,000
10
5,001-10,000
3
10001+
7

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 362 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with the United States whose business descriptions match “rare disease pharmaceutical companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 81,950 professional contacts with verified work emails across the full matched dataset. 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.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “rare disease pharmaceutical companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many rare disease pharmaceutical companies are there based in the United States?

RevenueBase identified 362 company matches for rare disease pharmaceutical companies associated with the United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Bristol Myers Squibb tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most rare disease pharmaceutical companies?

New York leads with 20 company records, followed by Boston (17) and San Diego (13).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 81,950 professional contacts with verified work emails tracked across these 362 companies; direct dials are available where recorded.

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 SmartSearch, 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.