Company lists · Data refreshed September 2026

Top 25 Ngos worldwide

RevenueBase identified 5,065 ngos worldwide as of September 2026 and tracks 244,186 professional contacts across them, including 41,465 with verified work emails. The United States is the largest market and London the largest hub.

This list covers ngos worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 20, 2026. Country and city lists for ngos follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 20, 2026 86% judged on-target in blind review
5,065Companies
244,186Contacts tracked
41,465Verified emails
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The 25 largest ngos worldwide

Ranked by team size
Top 25 of 5,065 ngos worldwide, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to ngos: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceMorristown, NJ, United StatesHQ checked Sep 20, 2026n/a24,886 contacts →

Indirect evidence

“International Mission of Mercy (IMM) was founded in 1991 by Satish Mehtani, a veteran of disaster relief missions in Kuwait, Japan and at the World Trade Center following…”

Source: RevenueBase Database · checked Sep 20, 2026
2Indirect evidenceLondon, United KingdomHQ checked Sep 20, 202610001+12,037 contacts →

Indirect evidence

“World Vision is the largest child-focused private charity in the world.”

Source: RevenueBase Database · checked Sep 20, 2026
3Indirect evidenceAtlanta, GA, United StatesHQ checked Sep 20, 20265,001-10,0008,336 contacts →

Indirect evidence

“CARE is a leading humanitarian global organization.”

Source: RevenueBase Database · checked Sep 20, 2026
4Indirect evidenceWoking, United KingdomHQ checked Sep 20, 20265,001-10,0007,703 contacts →

Indirect evidence

“Plan International is an independent development and humanitarian organisation that stands with girls to tear down barriers, save lives and build a world where equality for girls…”

Source: RevenueBase Database · checked Sep 20, 2026
5Indirect evidenceBaltimore, MD, United StatesHQ checked Sep 20, 20265,001-10,0007,565 contacts →

Indirect evidence

“Catholic Relief Services is the official international humanitarian agency of the Catholic community in the United States.”

Source: RevenueBase Database · checked Sep 20, 2026
6Indirect evidenceOxford, United KingdomHQ checked Sep 20, 20265,001-10,0007,001 contacts →

Indirect evidence

“Oxfam is a vibrant global movement of dedicated people fighting poverty - together.”

Source: RevenueBase Database · checked Sep 20, 2026
7Indirect evidencePortland, OR, United StatesHQ checked Sep 20, 20261,001-5,0006,863 contacts →

Indirect evidence

“The world is more fragile than ever.”

Source: RevenueBase Database · checked Sep 20, 2026
8Indirect evidenceOslo, NorwayHQ checked Sep 20, 202610001+5,482 contacts →

Indirect evidence

“The Norwegian Refugee Council (NRC) is a global humanitarian organisation helping people forced to flee.”

Source: RevenueBase Database · checked Sep 20, 2026
9Indirect evidenceCopenhagen, DenmarkHQ checked Sep 20, 20265,001-10,0005,109 contacts →

Indirect evidence

“Since 1956, we support displaced people in their pursuit of a dignified life.”

Source: RevenueBase Database · checked Sep 20, 2026
10Indirect evidenceLos Angeles, CA, United StatesHQ checked Sep 20, 20265,001-10,0004,409 contacts →

Indirect evidence

“International Medical Corps is a global first responder that delivers emergency medical and related services to those affected by conflict, disaster and disease, no matter where…”

Source: RevenueBase Database · checked Sep 20, 2026
11Indirect evidenceMontreuil, FranceHQ checked Sep 20, 20261,001-5,0003,600 contacts →

Indirect evidence

“Created in 1979, Action contre la Faim is a non-governmental organization that fights against hunger.”

Source: RevenueBase Database · checked Sep 20, 2026
12Indirect evidenceDublin 2, IrelandHQ checked Sep 20, 20261,001-5,0002,987 contacts →

Indirect evidence

“Concern Worldwide is an international humanitarian organisation dedicated to tackling poverty and suffering in the world’s poorest countries.”

Source: RevenueBase Database · checked Sep 20, 2026
13Indirect evidenceLondon, South AfricaHQ checked Sep 20, 2026501-1,0002,143 contacts →

Indirect evidence

“Founded in 1972, ActionAid has been fighting poverty worldwide for over 30 years.”

Source: RevenueBase Database · checked Sep 20, 2026
14Indirect evidenceRome, ItalyHQ checked Sep 20, 20261,001-5,0002,023 contacts →

Indirect evidence

“INTERSOS is an independent, non-profit organization which, through its own humanitarian operators, intervenes to effectively answer the needs of people in serious crises…”

Source: RevenueBase Database · checked Sep 20, 2026
15Indirect evidenceElkhart, IN, United StatesHQ checked Sep 20, 2026501-1,0001,976 contacts →

Indirect evidence

“Church World Service is a faith-based organization transforming communities around the globe through just and sustainable responses to hunger, poverty, displacement and disaster.”

Source: RevenueBase Database · checked Sep 20, 2026
16Indirect evidenceWashington D.c., DC, United StatesHQ checked Sep 20, 20265,001-10,0001,938 contacts →

Indirect evidence

“Relief International partners with communities impacted by conflict, climate change, and disaster to save lives, build greater resilience, and promote long-term health and…”

Source: RevenueBase Database · checked Sep 20, 2026
17Indirect evidenceClichy, FranceHQ checked Sep 20, 20261,001-5,0001,863 contacts →

Indirect evidence

“The NGO SOLIDARITÉS INTERNATIONAL assists populations affected by conflicts and violence, epidemics, natural or climate-related disasters and economic collapse.”

Source: RevenueBase Database · checked Sep 20, 2026
18Indirect evidencePhoenix, AZ, United StatesHQ checked Sep 20, 20261,001-5,0001,737 contacts →

Indirect evidence

“Food for the Hungry is a Christian humanitarian organization ending all forms of human poverty by providing life-changing development programs, disaster relief, and advocacy.”

Source: RevenueBase Database · checked Sep 20, 2026
19Indirect evidenceAsnières Sur Seine, FranceHQ checked Sep 20, 20261,001-5,0001,621 contacts →

Indirect evidence

“Première Urgence Internationale is a non-profit, non-political, non-religious international NGO.”

Source: RevenueBase Database · checked Sep 20, 2026
20Indirect evidencePrague, Czech RepublicHQ checked Sep 20, 20261,001-5,0001,604 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 20, 2026
21Indirect evidenceSilver Spring, MD, United StatesHQ checked Sep 20, 20261,001-5,0001,550 contacts →

Indirect evidence

“ADRA knows that beginnings are difficult.”

Source: RevenueBase Database · checked Sep 20, 2026
22Indirect evidenceDen Haag, NetherlandsHQ checked Sep 20, 2026501-1,0001,539 contacts →

Indirect evidence

“Helping people in need.”

Source: RevenueBase Database · checked Sep 20, 2026
23Indirect evidenceWashington, DC, United StatesHQ checked Sep 20, 2026501-1,0001,336 contacts →

Indirect evidence

“Pact is an international nonprofit that works across the world building solutions for human development that are evidence-based, data-driven, and owned by the communities we serve.”

Source: RevenueBase Database · checked Sep 20, 2026
24Indirect evidenceLahore, PakistanHQ checked Sep 20, 202610001+1,225 contacts →

Indirect evidence

“Alkhidmat Foundation Pakistan is a continuation of half a century old tradition of relief and philanthropic work.”

Source: RevenueBase Database · checked Sep 20, 2026
25Indirect evidenceBethesda, MD, United StatesHQ checked Sep 20, 20261,001-5,0001,225 contacts →

Indirect evidence

“At Global Communities, we know lasting change starts locally.”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 25 of 5,065 ngos worldwide

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Ngos worldwide at a glance

As of Sep 20, 2026
17.0%Verified-email coverage
48.2Average contacts per company
11-50Median size (employees)
1.8%Largest-city concentration · London
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
1,867
11-50
1,625
51-200
873
201-500
368
501-1,000
142
1,001-5,000
107
5,001-10,000
37
10001+
36

Email recency is reported on each country list linked below.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among ngos, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
Coverage
Every country. Country and city lists for ngos are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “ngos”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names ngos), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among ngos, and records with no verified work email.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 41,465 across the full list. 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.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Ngos by location

27 lists · largest first

Every Ngos 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 Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names ngos, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many ngos are there worldwide?

RevenueBase identified 5,065 ngos worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

International Mission Of Mercy IMM, headquartered in Morristown, tops this list with the largest team on record.

Which country has the most ngos?

The United States leads with 477 companies, followed by India (453) and Nigeria (284). Every ngos list by country and city is linked on this page.

Which city has the most ngos?

London leads with 89 headquartered companies, followed by Nairobi (56) and New Delhi (54).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 41,465 verified decision-maker contacts tracked across these 5,065 companies.

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 Smart Search, 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.