Company lists · Data refreshed September 2026

Top 25 Rare disease organizations worldwide

RevenueBase identified 783 company matches for rare disease organizations worldwide as of September 2026 and tracks 19,341 professional contacts across them, including 9,489 with verified work emails. The United States is the largest market and Paris the largest hub.

This list covers company matches for rare disease organizations 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 21, 2026. Country and city lists for rare disease organizations 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 21, 2026 How this list was built
783Companies
19,341Contacts tracked
9,489Verified emails
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The 25 largest rare disease organizations worldwide

Ranked by team size
Top 25 of 783 company matches for rare disease organizations worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 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 21, 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 21, 2026 · View company records in RevenueBase
2Exact matchNovato, CA, United StatesHQ recorded Sep 21, 20261,001-5,0001,556 contacts →

Exact match

“Leading with purpose.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
3Exact matchWarren, NJ, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
4Exact matchLeiden, NetherlandsHQ recorded Sep 21, 2026201-500976 contacts →

Exact match

“Pharming Group is a global biopharmaceutical company dedicated to transforming the lives of patients with rare, debilitating, and life-threatening diseases.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5Exact matchCambridge, MA, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
6Exact matchPittsburgh, PA, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
7Exact matchEvry, FranceHQ recorded Sep 21, 2026201-500571 contacts →

Exact match

“L’AFM-Téléthon est une association de parents et de malades qui mène un combat sans relâche contre des maladies génétiques, rares et lourdement invalidantes.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8Exact matchSan Diego, CA, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
9Exact matchLondon, United KingdomHQ recorded Sep 21, 2026201-500409 contacts →

Exact match

“LifeArc® is a self-funded medical research organisation with one clear purpose – transforming the lives of people living with rare diseases and drug-resistant infections.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10Exact matchPozzuoli, ItalyHQ recorded Sep 21, 2026201-500257 contacts →

Exact match

“TIGEM is a leading research institute dedicated to uncovering the molecular mechanisms of rare genetic diseases and translating these discoveries into innovative therapies, with a…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11Exact matchBeccar, ArgentinaHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
12Exact matchCambridge, United KingdomHQ recorded Sep 21, 202651-200196 contacts →

Exact match

“We’re committed to supporting patients and their caregivers in every way we can.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13Exact matchCoral Gables, FL, United StatesHQ recorded Sep 21, 202651-200185 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14Exact matchPensacola, FL, United StatesHQ recorded Sep 21, 202651-200168 contacts →

Exact match

“Bionews is a digital health solutions company dedicated to empowering more than 50 rare disease communities with trusted information, news, and connections.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15Exact matchDanbury, CT, United StatesHQ recorded Sep 21, 202651-200156 contacts →

Exact match

“The National Organization for Rare Disorders (NORD), a 501(c)(3) organization, is an independent patient advocacy organization dedicated to helping individuals with rare diseases…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16Exact matchParis, FranceHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
17Exact matchHovås, SwedenHQ recorded Sep 21, 2026201-500110 contacts →

Exact match

“Ågrenska is a national centre of competence for rare diseases and other disabilities.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18Exact matchCambridge, MA, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
19Exact matchDublin City, United StatesHQ recorded Sep 21, 2026201-50083 contacts →

Exact match

“Amryt Pharma was acquired by Chiesi Farmaceutici S.p.A.(“Chiesi”) April 12, 2023.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
20Exact matchWashington, DC, United StatesHQ recorded Sep 21, 202611-5081 contacts →

Exact match

“The EveryLife Foundation for Rare Diseases is powered by the rare disease community to improve health outcomes by driving change through evidence-based policy, leading…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21Exact matchBoston, MA, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
22Exact matchParis, FranceHQ recorded Sep 21, 202611-5075 contacts →

Exact match

“EURORDIS-Rare Diseases Europe is a unique, non-profit alliance of over rare disease patient organisations from more than 70 countries that work together to improve the lives of…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23Exact matchHemel Hempstead, United KingdomHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
24Exact matchConcord, MA, United StatesHQ recorded Sep 21, 202651-20065 contacts →

Exact match

“ITF Therapeutics is the US-based rare disease division of Italfarmaco S.p.A.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25Exact matchNew York, NY, United StatesHQ recorded Sep 21, 202611-5063 contacts →

Exact match

“This is a time of great hope for individuals with complex diseases such as NF1 and their families.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase

Showing 25 of 783 rare disease organizations worldwide

See the full list, filter by size, metro and specialty, and access 9,489 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Rare disease organizations worldwide at a glance

As of Sep 21, 2026
49.1%Verified-email coverage
24.7Average contacts per company
1-10Median size (employees)
2.7%Largest-city concentration · Paris
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
535
11-50
165
51-200
48
201-500
20
501-1,000
7
1,001-5,000
6
5,001-10,000
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 rare disease organizations are linked below.
What qualifies
Company records worldwide whose business descriptions match “rare disease organizations” 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 9,489 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 21, 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.

Rare disease organizations by location

4 lists · largest first

Every Rare disease organizations 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 “rare disease organizations”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many rare disease organizations are there worldwide?

RevenueBase identified 783 company matches for rare disease organizations 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 rare disease organizations?

The United States leads with 223 companies, followed by France (72) and the United Kingdom (47). Every rare disease organizations list by country and city is linked on this page.

Which city has the most rare disease organizations?

Paris leads with 21 company records, followed by Cambridge (12) and London (12).

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 9,489 professional contacts with verified work emails tracked across these 783 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 21, 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.