Company lists · Data refreshed September 2026

Top 25 Orphan drug developers worldwide

RevenueBase identified 252 company matches for orphan drug developers worldwide as of September 2026 and tracks 23,330 professional contacts across them, including 10,884 with verified work emails. The United States is the largest market and Cambridge the largest hub.

This list covers company matches for orphan drug developers worldwide, 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. Country and city lists for orphan drug developers follow the table.

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
252Companies
23,330Contacts tracked
10,884Verified emails
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The 25 largest orphan drug developers worldwide

Ranked by team size
Top 25 of 252 company matches for orphan drug developers worldwide, 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 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
2Exact matchDublin, GermanyHQ recorded Sep 20, 20261,001-5,0003,593 contacts →

Exact match

“Jazz Pharmaceuticals plc (Nasdaq: JAZZ), is a global biopharmaceutical company whose purpose is to innovate to transform the lives of patients and their families.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3Exact matchMilan, ItalyHQ recorded Sep 20, 20261,001-5,0002,789 contacts →

Exact match

“Recordati has been at the forefront of life-enhancing and life-changing medicines for 100 years.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
4Exact 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
5Exact 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
6Exact 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
7Exact 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
8Exact matchMaple Grove, MN, United StatesHQ recorded Sep 20, 202651-200395 contacts →

Exact match

“Upsher‑Smith is the commercial arm of the Bora Group, focused on developing, marketing, and distributing pharmaceutical products that make a real difference for patients.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9Exact matchFoster City, CA, United StatesHQ recorded Sep 20, 2026201-500374 contacts →

Exact match

“Mirum Pharmaceuticals is a leading rare disease company with a global footprint of approved products and a broad pipeline of investigational medicines.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10Exact matchMiami, FL, United StatesHQ recorded Sep 20, 2026201-500259 contacts →

Exact match

“Summit Mission Statement: To build a viable, long-lasting health care organization that assumes full responsibility for designing, developing, trial execution and enrollment…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11Exact matchHoofddorp, NetherlandsHQ recorded Sep 20, 2026201-500221 contacts →

Exact match

“Nordic Pharma is a privately owned, medium-size, fully integrated Pharma company with a history of internal product development and acquisitions.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
12Exact matchBeccar, ArgentinaHQ recorded Sep 20, 2026201-500217 contacts →

Exact match

“Focused on complex therapies and orphan diseases, Varifarma is a company which is devoted to improving the patients' quality of life.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
13Exact matchChicago, IL, United StatesHQ recorded Sep 20, 202651-200189 contacts →

Exact match

“Founded in 2003, CG Life is a specialized pharma agency built for the unique challenges of bringing therapies for rare and hard-to-treat diseases to market, where traditional…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
14Exact matchCoral Gables, FL, United StatesHQ recorded Sep 20, 202651-200185 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
15Exact matchAthens, GreeceHQ recorded Sep 20, 202651-200175 contacts →

Exact match

“GENESIS Pharma is a European biopharmaceutical company specializing in the commercialization of innovative pharmaceutical products for serious and rare diseases.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16Exact matchUnited StatesHQ recorded Sep 20, 202651-200137 contacts →

Exact match

“Centessa Pharmaceuticals plc, a wholly owned subsidiary of Eli Lilly and Company, is developing a portfolio of orexin receptor 2 (OX2R) agonists for the potential treatment of…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
17Exact matchParis, FranceHQ recorded Sep 20, 202651-200118 contacts →

Exact match

“Transforming Rare Disease Treatment At Orphalan we identify, develop, and provide access to innovative treatments for patients with rare diseases to make a positive and meaningful…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
18Exact matchCambridge, MA, United StatesHQ recorded Sep 20, 202651-200116 contacts →

Exact match

“Pioneering Medicines, Flagship Pioneering’s in house drug discovery and development unit, is dedicated to conceiving and developing a broad portfolio of life-changing treatments…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
19Exact matchCampbell, CA, United StatesHQ recorded Sep 20, 202611-50114 contacts →

Exact match

“With demonstrated clinical development and commercialization expertise, VIVUS is dedicated to addressing the therapeutic needs of patients with serious medical conditions and…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20Exact matchVero Beach, FL, United StatesHQ recorded Sep 20, 202651-20098 contacts →

Exact match

“QOL Medical is a specialty biopharmaceutical company dedicated to improving the quality of life for patients with rare diseases, for their families, and for the physicians and…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
21Exact matchCambridge, MA, United StatesHQ recorded Sep 20, 202651-20084 contacts →

Exact match

“We are a clinical-stage biopharmaceutical company focused on improving the lives of patients with genetically defined diseases in areas of high unmet medical need, with an initial…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
22Exact matchLugano, SwitzerlandHQ recorded Sep 20, 202651-20080 contacts →

Exact match

“ADIENNE is an integrated biopharmaceutical group of companies based in Lugano, Switzerland, with a proprietary portfolio of orphan-designated marketed medicinal product, clinical…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
23Exact matchBoston, MA, United StatesHQ recorded Sep 20, 202651-20078 contacts →

Exact match

“We are a purpose-driven, commercial-stage company with a late-stage pipeline committed to redefining what is possible in bringing life-changing therapies to people living with…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
24Exact matchBogotá, ColombiaHQ recorded Sep 20, 202651-20074 contacts →

Exact match

“Valentech is a specialized Latin American healthcare company focused on enabling patient access to innovative therapies for high‑burden rare diseases across Central and South…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
25Exact matchHemel Hempstead, United KingdomHQ recorded Sep 20, 2026201-50070 contacts →

Exact match

“We are committed to transforming the lives of people affected by cancer or rare disease, globally.”

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

Showing 25 of 252 orphan drug developers worldwide

See the full list, filter by size, metro and specialty, and access 10,884 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Orphan drug developers worldwide at a glance

As of Sep 20, 2026
46.7%Verified-email coverage
92.6Average contacts per company
11-50Median size (employees)
2.8%Largest-city concentration · Cambridge
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
90
11-50
82
51-200
46
201-500
19
501-1,000
4
1,001-5,000
9
10001+
1

Email recency is reported on each country list linked below.

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.
Coverage
Every country. Country and city lists for orphan drug developers are linked below.
What qualifies
Company records worldwide whose business descriptions match “orphan drug developers” 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. 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 10,884 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.

Orphan drug developers by location

1 lists · largest first

Every Orphan drug developers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 developers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many orphan drug developers are there worldwide?

RevenueBase identified 252 company matches for orphan drug developers worldwide 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?

Alexion Pharmaceuticals, INC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most orphan drug developers?

The United States leads with 95 companies. Every orphan drug developers list by country and city is linked on this page.

Which city has the most orphan drug developers?

Cambridge leads with 7 company records, followed by London (7) and New York (6).

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 10,884 professional contacts with verified work emails tracked across these 252 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.