Company lists · Data refreshed November 2026

Top 25 Donor organizations worldwide

RevenueBase identified 4,076 company matches for donor organizations worldwide as of November 2026 and tracks 91,342 professional contacts across them, including 22,259 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for donor 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 November 6, 2026. Country and city lists for donor 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 Nov 6, 2026 How this list was built
4,076Companies
91,342Contacts tracked
22,259Verified emails
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The 25 largest donor organizations worldwide

Ranked by team size
Top 25 of 4,076 company matches for donor organizations worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 matchGeneva, NY, SwitzerlandHQ recorded Nov 6, 202610001+14,115 contacts →

Exact match

“Médecins Sans Frontières (MSF) is an international, independent, medical humanitarian organisation working to provide medical assistance to people affected by conflict, epidemics…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchPortland, OR, United StatesHQ recorded Nov 6, 20261,001-5,0006,760 contacts →

Exact match

“The world is more fragile than ever.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchWest Melbourne, United StatesHQ recorded Nov 6, 20261,001-5,0002,192 contacts →

Exact match

“Australian Red Cross Lifeblood is a division of the Australian Red Cross.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchMandaluyong City, PhilippinesHQ recorded Nov 6, 2026501-1,0002,015 contacts →

Exact match

“The Philippine Red Cross is a non-profit, donor-funded, volunteer, humanitarian organization.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchPrague, Czech RepublicHQ recorded Nov 6, 20261,001-5,0001,652 contacts →

Exact match

“We are a non-governmental, non-profit organisation based on the ideas of humanism, freedom, equality and solidarity.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchNew York, NY, United StatesHQ recorded Nov 6, 2026501-1,0001,137 contacts →

Exact match

“GiveDirectly allows governments, foundations, and individual donors to provide direct cash transfers to people living in extreme poverty.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchThe Hague, NetherlandsHQ recorded Nov 6, 2026201-500884 contacts →

Exact match

“Cordaid is an internationally operating value-based emergency relief and development organisation, working in and on fragility.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchSão Paulo, BrazilHQ recorded Nov 6, 2026501-1,000826 contacts →

Exact match

“É uma Organização Beneficente sem fins lucrativos, que atua na área de hemoterapia, promovendo a captação de doadores, coleta, análise e processamento do sangue e, posteriormente…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchCologne, GermanyHQ recorded Nov 6, 2026501-1,000782 contacts →

Exact match

“Malteser International is the humanitarian relief agency of the Sovereign Order of Malta.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchCopenhagen, DenmarkHQ recorded Nov 6, 2026201-500684 contacts →

Exact match

“NIRAS International Development Consulting is one of Europe's largest development consulting firms.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchHelsinki, FinlandHQ recorded Nov 6, 20261,001-5,000610 contacts →

Exact match

“We believe in everyone’s right to peace, quality education and sustainable livelihoods, and we work with the most vulnerable people, regardless of their religious beliefs, ethnic…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchBurwood East, AustraliaHQ recorded Nov 6, 2026501-1,000600 contacts →

Exact match

“Connecting Australians who want to help those who need support, World Vision is the thread that brings people together to create meaningful change for children.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchSan Dimas, CA, United StatesHQ recorded Nov 6, 202651-200563 contacts →

Exact match

“The Buddhist Tzu Chi Foundation (Tzu Chi USA) is a volunteer-based international non-governmental organization established by Dharma Master Cheng Yen in Hualien, Taiwan, in 1966.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchLondon, United KingdomHQ recorded Nov 6, 2026201-500555 contacts →

Exact match

“Anthony Nolan saves the lives of people with blood cancer.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchEpsom, New ZealandHQ recorded Nov 6, 2026501-1,000519 contacts →

Exact match

“New Zealand Blood Service (NZBS) was created on 1 July 1998 to provide the people of New Zealand with safe, appropriate and timely access to blood and tissue products and related…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchLondon, United KingdomHQ recorded Nov 6, 2026201-500507 contacts →

Exact match

“Together, we give more.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchBoston, KY, United StatesHQ recorded Nov 6, 2026501-1,000491 contacts →

Exact match

“Fidelity Charitable® is an independent 501(c)(3) public charity that has helped donors support over nonprofit organizations with over $118 billion in grants with our donor-advised…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchNottingham, United KingdomHQ recorded Nov 6, 2026201-500481 contacts →

Exact match

“In 1993, a community in Nottingham, moved by the devastation of the Bosnian war, sprang into action.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchSan Antonio, TX, United StatesHQ recorded Nov 6, 2026501-1,000480 contacts →

Exact match

“BioBridge Global, a San Antonio-based 501(c)(3) nonprofit, integrates donor-to-patient services to enable the future of biotherapeutic solutions, including blood, tissue and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchAzusa, CA, United StatesHQ recorded Nov 6, 2026201-500450 contacts →

Exact match

“OneLegacy is the non-profit organization dedicated to saving lives through organ and tissue donation in the seven-county greater Los Angeles area.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchEast Jakarta, IndonesiaHQ recorded Nov 6, 2026201-500406 contacts →

Exact match

“On July 22, 2008, PKPU was registered with the United Nations as an NGO with a "Special Consultative Status with the Economic Social Council".”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchHouston, TX, United StatesHQ recorded Nov 6, 2026201-500371 contacts →

Exact match

“LifeGift is a nonprofit, 501(c)(3) health services organization.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchMadrid, SpainHQ recorded Nov 6, 2026501-1,000369 contacts →

Exact match

“WESSER and PARTNER, multinacional líder en Europa en la captación de fondos Face to Face (fundraising), especializada en el ámbito de las ONG.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchNashville, CA, United StatesHQ recorded Nov 6, 2026501-1,000364 contacts →

Exact match

“DCI Donor Services’ family of companies includes DCI Donor Service Tissue Bank and organ procurement organizations in California, New Mexico and Tennessee.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchItalyHQ recorded Nov 6, 202651-200350 contacts →

Exact match

“The Associazione Volontari Italiani del Sangue (AVIS)("Association of Voluntary Italian Blood Donors") is the major Italian non-profit and charitable organization for blood…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 4,076 donor organizations worldwide

See the full list, filter by size, metro and specialty, and access 22,259 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Donor organizations worldwide at a glance

As of Nov 6, 2026
24.4%Verified-email coverage
22.4Average contacts per company
1-10Median size (employees)
2.3%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
2,338
11-50
1,026
51-200
407
201-500
141
501-1,000
66
1,001-5,000
27
5,001-10,000
5
10001+
15

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 donor organizations are linked below.
What qualifies
Company records worldwide whose business descriptions match “donor 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 22,259 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 November 6, 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.

Donor organizations by location

24 lists · largest first

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

Countries

Cities

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

How many donor organizations are there worldwide?

RevenueBase identified 4,076 company matches for donor organizations worldwide as of November 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?

Médecins Sans Frontières MSF tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most donor organizations?

The United States leads with 1,033 companies, followed by the United Kingdom (219) and India (204). Every donor organizations list by country and city is linked on this page.

Which city has the most donor organizations?

London leads with 95 company records, followed by New York (71) and Toronto (36).

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 22,259 professional contacts with verified work emails tracked across these 4,076 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 November 6, 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.