Company lists · Data refreshed September 2026

Top 25 Patient advocacy organizations worldwide

RevenueBase identified 911 company matches for patient advocacy organizations worldwide as of September 2026 and tracks 7,580 professional contacts across them, including 2,541 with verified work emails. The United States is the largest market and Washington the largest hub.

This list covers company matches for patient advocacy 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 20, 2026. Country and city lists for patient advocacy 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 20, 2026 How this list was built
911Companies
7,580Contacts tracked
2,541Verified emails
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The 25 largest patient advocacy organizations worldwide

Ranked by team size
Top 25 of 911 company matches for patient advocacy organizations 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 matchRedwood City, CA, United StatesHQ recorded Sep 20, 2026201-500572 contacts →

Exact match

“Healthcare is impossibly complex, and most people are left to navigate it alone.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
2Exact matchBrussels, BelgiumHQ recorded Sep 20, 2026501-1,000351 contacts →

Exact match

“Solidaris Brabant jouit de la confiance de plus de affiliés, et milite pour l’accès aux soins de santé de qualité pour tous, rendu possible grâce au principe de solidarité.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3Exact matchSunrise, FL, United StatesHQ recorded Sep 20, 2026501-1,000253 contacts →

Exact match

“BeneLynk is a national social care advocate for managed care companies.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
4Exact matchDanbury, CT, United StatesHQ recorded Sep 20, 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 20, 2026 · View company records in RevenueBase
5Exact matchUtrecht, NetherlandsHQ recorded Sep 20, 202651-200105 contacts →

Exact match

“Patiëntenfederatie Nederland zet zich in voor het 'Realiseren van vraaggestuurde zorg voor patiënten en consumenten vanuit het patiëntenperspectief, uitgaande van solidariteit…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6Exact matchUtrecht, NetherlandsHQ recorded Sep 20, 202611-5088 contacts →

Exact match

“LOC Zeggenschap in zorg is er voor cliëntenraden in de geestelijke gezondheidszorg, maatschappelijke opvang, thuiszorg, verpleging & verzorging, verslavingszorg en welzijn.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
7Exact matchAmsterdam, NetherlandsHQ recorded Sep 20, 202611-5087 contacts →

Exact match

“Cliëntenbelang Amsterdam is een onafhankelijke belangenbehartiger met een duidelijk doel: de kwaliteit van leven verbeteren van mensen die dat hard nodig hebben.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
8Exact matchHelena, MT, United StatesHQ recorded Sep 20, 202651-20083 contacts →

Exact match

“Mountain Pacific is a well established, nonprofit organization that connects specialized services, education, training and support to health care systems and communities that seek…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9Exact matchHastings, United KingdomHQ recorded Sep 20, 202651-20078 contacts →

Exact match

“As an independent charity, all of the services we provide are free and confidential.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10Exact matchUtrecht, NetherlandsHQ recorded Sep 20, 202651-20077 contacts →

Exact match

“Kwaliteit van zorg verbeteren vanuit cliëntenperspectief?”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11Exact matchOrlando, FL, United StatesHQ recorded Sep 20, 202651-20076 contacts →

Exact match

“At HealthFund Solutions, we are an advocate to uninsured patients and a partner to hospitals and healthcare providers.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
12Exact matchParis, FranceHQ recorded Sep 20, 202651-20076 contacts →

Exact match

“France Assos Santé est le nom choisi par l’Union nationale des associations agréées d’usagers du système de santé afin de faire connaître son action comme organisation de…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
13Exact matchParis, FranceHQ recorded Sep 20, 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 20, 2026 · View company records in RevenueBase
14Exact matchTilburg, NetherlandsHQ recorded Sep 20, 202651-20074 contacts →

Exact match

“We gaan verder onder de naam Zorgbelang Inclusief🤝 Samen blijven we ons inzetten om de stem van inwoners, patiënten en cliënten écht te laten tellen.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
15Exact matchWashington, DC, United StatesHQ recorded Sep 20, 202611-5073 contacts →

Exact match

“For more than 30 years, Families USA has been the trusted voice for America’s health care consumers.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16Exact matchBoston, United StatesHQ recorded Sep 20, 202611-5066 contacts →

Exact match

“CISCRP is a first-of-its-kind 501(c)3 nonprofit organization dedicated to educating and informing the public about clinical research participation and the role that each party…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
17Exact matchJohannesburg, South AfricaHQ recorded Sep 20, 2026201-50058 contacts →

Exact match

“Treatment Action Campaign (TAC) is a membership-based organisation, founded in 1998 as a movement representing users of the public healthcare system, particularly those living…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
18Exact matchWashington, DC, United StatesHQ recorded Sep 20, 202611-5053 contacts →

Exact match

“The Alliance for Regenerative Medicine (ARM) is the leading international advocacy organization championing the benefits of engineered cell therapies and genetic medicines for…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
19Exact matchAccrington, United KingdomHQ recorded Sep 20, 202651-20048 contacts →

Exact match

“Our charity has been delivering best practice health and social care advocacy from its Lancashire base since 1998.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20Exact matchParis, FranceHQ recorded Sep 20, 2026n/a48 contacts →

Exact match

“RoseUp association est une association d'intérêt général (loi 1901) qui accompagne, informe et défends les droits des malades de cancer”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
21Exact matchCleveland, OH, United StatesHQ recorded Sep 20, 202611-5048 contacts →

Exact match

“Ohio Citizen Action organizes and mobilizes people to advocate for public interests.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
22Exact matchUtrecht, NetherlandsHQ recorded Sep 20, 202611-5045 contacts →

Exact match

“NFK komt op voor de belangen van mensen die kanker hebben (gehad) en hun naasten.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
23Exact matchUtrecht, NetherlandsHQ recorded Sep 20, 2026n/a44 contacts →

Exact match

“De patiëntenvereniging voor (ex-)borstkankerpatiënten, mensen met erfelijke/familiaire aanleg en hun naasten.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
24Exact matchSurry Hills, AustraliaHQ recorded Sep 20, 202611-5042 contacts →

Exact match

“The Older Persons Advocacy Network is a national network comprised of nine state and territory organisations that have successfully delivered information, education and individual…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
25Exact matchSão Paulo, BrazilHQ recorded Sep 20, 202611-5042 contacts →

Exact match

“O Instituto Oncoguia, uma associação sem fins lucrativos tem como missão ajudar o paciente com câncer a viver melhor por meio de informação de qualidade e do empoderamento da…”

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

Showing 25 of 911 patient advocacy organizations worldwide

See the full list, filter by size, metro and specialty, and access 2,541 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Patient advocacy organizations worldwide at a glance

As of Sep 20, 2026
33.5%Verified-email coverage
8.3Average contacts per company
1-10Median size (employees)
4.6%Largest-city concentration · Washington
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
660
11-50
187
51-200
41
201-500
6
501-1,000
5
1,001-5,000
3
5,001-10,000
1
10001+
5

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 patient advocacy organizations are linked below.
What qualifies
Company records worldwide whose business descriptions match “patient advocacy 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 2,541 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.

Patient advocacy organizations by location

5 lists · largest first

Every Patient advocacy 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 “patient advocacy organizations”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many patient advocacy organizations are there worldwide?

RevenueBase identified 911 company matches for patient advocacy 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?

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

Which country has the most patient advocacy organizations?

The United States leads with 335 companies, followed by the United Kingdom (53) and the Netherlands (38). Every patient advocacy organizations list by country and city is linked on this page.

Which city has the most patient advocacy organizations?

Washington leads with 42 company records, followed by London (10) and New York (10).

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 2,541 professional contacts with verified work emails tracked across these 911 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.