Company lists · Data refreshed September 2026

Top 25 Orphan drug companies based in the United States

RevenueBase identified 329 company matches for orphan drug companies associated with the United States as of September 2026 and tracks 152,407 professional contacts across them, including 62,091 with verified work emails. Boston is the largest hub.

This list covers company matches for orphan drug 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 20, 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 20, 2026 How this list was built
329Companies
152,407Contacts tracked
62,091Verified emails
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The 25 largest orphan drug companies based in the United States

Ranked by team size
Top 25 of 329 company matches for orphan drug companies based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 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 matchTitusville, NJ, United StatesHQ recorded Sep 20, 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 20, 2026 · View company records in RevenueBase
2Exact matchMorrisville, NC, United StatesHQ recorded Sep 20, 202610001+18,228 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 20, 2026 · View company records in RevenueBase
3Exact matchSouth San Francisco, CA, United StatesHQ recorded Sep 20, 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 20, 2026 · View company records in RevenueBase
4Exact matchTarrytown, NY, United StatesHQ recorded Sep 20, 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 20, 2026 · View company records in RevenueBase
5Exact matchBoston, MA, United StatesHQ recorded Sep 20, 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 20, 2026 · View company records in RevenueBase
6Exact matchSan Rafael, CA, United StatesHQ recorded Sep 20, 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 20, 2026 · View company records in RevenueBase
7Exact matchNutley, NJ, United StatesHQ recorded Sep 20, 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 20, 2026 · View company records in RevenueBase
8Exact matchBethesda, MD, United StatesHQ recorded Sep 20, 20261,001-5,0001,781 contacts →

Exact match

“Precision for Medicine is an industry-leading global clinical research services organization, purpose-built to improve the clinical research and development process for new…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9Exact matchBoston, MA, United StatesHQ recorded Sep 20, 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 20, 2026 · View company records in RevenueBase
10Exact matchNovato, CA, United StatesHQ recorded Sep 20, 20261,001-5,0001,556 contacts →

Exact match

“Leading with purpose.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11Exact matchBridgewater Township, NJ, United StatesHQ recorded Sep 20, 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 20, 2026 · View company records in RevenueBase
12Exact matchWarren, NJ, United StatesHQ recorded Sep 20, 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 20, 2026 · View company records in RevenueBase
13Exact matchCovington, KY, United StatesHQ recorded Sep 20, 20261,001-5,0001,043 contacts →

Exact match

“CTI Clinical Trial and Consulting Services is a global, privately held, research service organization, delivering a complete spectrum of clinical trial and consulting services…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
14Exact matchStamford, CT, United StatesHQ recorded Sep 20, 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 20, 2026 · View company records in RevenueBase
15Exact matchPalo Alto, CA, United StatesHQ recorded Sep 20, 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 20, 2026 · View company records in RevenueBase
16Exact matchWoburn, MA, United StatesHQ recorded Sep 20, 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 20, 2026 · View company records in RevenueBase
17Exact matchPasadena, CA, United StatesHQ recorded Sep 20, 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 20, 2026 · View company records in RevenueBase
18Exact matchPrinceton, NJ, United StatesHQ recorded Sep 20, 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 20, 2026 · View company records in RevenueBase
19Exact matchCambridge, MA, United StatesHQ recorded Sep 20, 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 20, 2026 · View company records in RevenueBase
20Exact matchPittsburgh, PA, United StatesHQ recorded Sep 20, 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 20, 2026 · View company records in RevenueBase
21Exact matchWashington, DC, United StatesHQ recorded Sep 20, 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 20, 2026 · View company records in RevenueBase
22Exact matchWaltham, MA, United StatesHQ recorded Sep 20, 2026201-500548 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
23Exact matchCary, NC, United StatesHQ recorded Sep 20, 2026201-500513 contacts →

Exact match

“Chiesi USA, Inc, headquartered in Cary, N.C, is a specialty pharmaceutical company focused on commercialization of products for the hospital, rare disease and target office-based…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
24Exact matchWaltham, MA, United StatesHQ recorded Sep 20, 2026201-500497 contacts →

Exact match

“Ardelyx is a commercial-stage biopharmaceutical company focused on the development and commercialization of innovative medicines that meet significant unmet medical needs.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
25Exact matchSan Diego, CA, United StatesHQ recorded Sep 20, 2026201-500491 contacts →

Exact match

“Our mission is to identify, develop and deliver life-changing therapies to people living with rare disease.#InRareForLife Community Guidelines…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase

Showing 25 of 329 orphan drug companies based in the United States

See the full list, filter by size, metro and specialty, and access 62,091 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Orphan drug companies based in the United States at a glance

As of Sep 20, 2026
40.7%Verified-email coverage
463.2Average contacts per company
11-50Median size (employees)
4.3%Largest-city concentration · Boston
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
107
11-50
104
51-200
51
201-500
30
501-1,000
14
1,001-5,000
12
5,001-10,000
1
10001+
8

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 329 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 “orphan drug 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 62,091 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 20, 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 “orphan drug companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many orphan drug companies are there based in the United States?

RevenueBase identified 329 company matches for orphan drug 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?

Johnson & Johnson Innovative Medicine tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most orphan drug companies?

Boston leads with 14 company records, followed by New York (14) and San Diego (11).

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 62,091 professional contacts with verified work emails tracked across these 329 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 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 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.