Company lists · Data refreshed September 2026

Top 25 International development organizations worldwide

Name: International development organizations worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 7,369 companies tracked

RevenueBase identified 7,369 international development organizations worldwide as of September 2026 and tracks 319,756 professional contacts across them, including 75,551 with verified work emails. The United States is the largest market and London the largest hub.

This list covers international development organizations 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 international development organizations 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

7,369Companies

319,756Contacts tracked

75,551Verified emails

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The 25 largest international development organizations worldwide

Ranked by team size

Top 25 of 7,369 international development organizations worldwide, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to international development organizations: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	The World Bank	Indirect evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	10001+	23,003 contacts →
	Indirect evidence “The World Bank is a vital source of financial and technical assistance to developing countries around the world.” Source: RevenueBase Database · checked Sep 20, 2026
2	Deutsche Gesellschaft FÜR Internationale Zusammenarbeit GIZ Gmbh	Strong evidence	Bonn, GermanyHQ checked Sep 20, 2026	10001+	19,111 contacts →
	Strong evidence “As a service provider in the field of international cooperation for sustainable development and international education work, we are dedicated to shaping a future worth living…” Source: RevenueBase Database · checked Sep 20, 2026
3	UNDP	Partial evidence	New York, NY, United StatesHQ checked Sep 20, 2026	10001+	18,629 contacts →
	Partial evidence “The United Nations Development Programme works in nearly 170 countries and territories, helping to achieve the eradication of poverty, and the reduction of inequalities and…” Source: RevenueBase Database · checked Sep 20, 2026
4	IFC	Partial evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	1,001-5,000	8,388 contacts →
	Partial evidence “IFC, a member of the World Bank Group, is the largest global development institution focused exclusively on the private sector in developing countries.” Source: RevenueBase Database · checked Sep 20, 2026
5	UNOPS	Partial evidence	Copenhagen, DenmarkHQ checked Sep 20, 2026	5,001-10,000	7,216 contacts →
	Partial evidence “UNOPS helps the UN and its partners provide peace and security, humanitarian and development solutions.” Source: RevenueBase Database · checked Sep 20, 2026
6	Mercy Corps	Indirect evidence	Portland, OR, United StatesHQ checked Sep 20, 2026	1,001-5,000	6,863 contacts →
	Indirect evidence “The world is more fragile than ever.” Source: RevenueBase Database · checked Sep 20, 2026
7	NEOM	Partial evidence	Neom, Saudi ArabiaHQ checked Sep 20, 2026	1,001-5,000	6,828 contacts →
	Partial evidence “NEOM is a visionary, multi-generational development shaping a new model for sustainable living, economic opportunity, and human progress.” Source: RevenueBase Database · checked Sep 20, 2026
8	Japan International Cooperation Agency Jica	Partial evidence	Tokyo, JapanHQ checked Sep 20, 2026	1,001-5,000	4,379 contacts →
	Partial evidence “Established as an independent administrative institution under the law concerning the Independent Administrative Institution Japan International Cooperation Agency (Law No.” Source: RevenueBase Database · checked Sep 20, 2026
9	Viva RIO	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 20, 2026	5,001-10,000	3,402 contacts →
	Indirect evidence “O Viva Rio é uma organização comprometida com a pesquisa, o trabalho de campo e a formulação de políticas públicas com o objetivo de promover a cultura de paz e a inclusão social.” Source: RevenueBase Database · checked Sep 20, 2026
10	Concern Worldwide	Partial evidence	Dublin 2, IrelandHQ checked Sep 20, 2026	1,001-5,000	2,987 contacts →
	Partial 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
11	Expertise France	Partial evidence	Paris, FranceHQ checked Sep 20, 2026	501-1,000	2,465 contacts →
	Partial evidence “Expertise France is a public agency and a key actor in international technical cooperation.” Source: RevenueBase Database · checked Sep 20, 2026
12	International Fund For Agricultural Development Ifad	Partial evidence	Rome, ItalyHQ checked Sep 20, 2026	501-1,000	2,383 contacts →
	Partial evidence “IFAD is the only international financial institution exclusively focused on rural transformation.” Source: RevenueBase Database · checked Sep 20, 2026
13	SNV	Partial evidence	The Hague, NetherlandsHQ checked Sep 20, 2026	1,001-5,000	2,374 contacts →
	Partial evidence “SNV is a global development partner, deeply rooted in the countries where we operate.” Source: RevenueBase Database · checked Sep 20, 2026
14	Actionaid	Indirect evidence	London, South AfricaHQ checked Sep 20, 2026	501-1,000	2,143 contacts →
	Indirect evidence “Founded in 1972, ActionAid has been fighting poverty worldwide for over 30 years.” Source: RevenueBase Database · checked Sep 20, 2026
15	Enabel	Partial evidence	Brussels, BelgiumHQ checked Sep 20, 2026	1,001-5,000	1,930 contacts →
	Partial evidence “Enabel is the Belgian agency for international cooperation.” Source: RevenueBase Database · checked Sep 20, 2026
16	Tyréns AB	Partial evidence	SwedenHQ checked Sep 20, 2026	1,001-5,000	1,916 contacts →
	Partial evidence “Tyréns is one of Sweden’s leading community development consultancies.” Source: RevenueBase Database · checked Sep 20, 2026
17	People In Need	Indirect evidence	Prague, Czech RepublicHQ checked Sep 20, 2026	1,001-5,000	1,604 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
18	Swisscontact	Partial evidence	Zurich, SwitzerlandHQ checked Sep 20, 2026	1,001-5,000	1,392 contacts →
	Partial evidence “Swisscontact – Swiss Foundation for Technical Cooperation – is an independent non-profit development organisation established in 1959 by representatives of the Swiss private…” Source: RevenueBase Database · checked Sep 20, 2026
19	GFA Consulting Group Gmbh	Strong evidence	Hamburg, GermanyHQ checked Sep 20, 2026	1,001-5,000	1,382 contacts →
	Strong evidence “GFA Consulting Group is one of Europe's leading consulting firms in the field of international development cooperation.” Source: RevenueBase Database · checked Sep 20, 2026
20	Innovations For Poverty Action	Indirect evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	501-1,000	1,366 contacts →
	Indirect evidence “Innovations for Poverty Action (IPA) is a research and policy non-profit that discovers and promotes effective solutions to global poverty problems.” Source: RevenueBase Database · checked Sep 20, 2026
21	PACT	Strong evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	501-1,000	1,336 contacts →
	Strong 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
22	IPE Global Limited	Partial evidence	New Delhi, IndiaHQ checked Sep 20, 2026	501-1,000	1,322 contacts →
	Partial evidence “Headquartered in India with six international offices in Cambodia, Ethiopia, Kenya, the Philippines, Germany and the United Kingdom, IPE Global Group offers a range of integrated…” Source: RevenueBase Database · checked Sep 20, 2026
23	North West Education Department	Partial evidence	South AfricaHQ checked Sep 20, 2026	n/a	1,321 contacts →
	Partial evidence “The leading Development Institute in the Education Sector” Source: RevenueBase Database · checked Sep 20, 2026
24	Global Communities	Indirect evidence	Bethesda, MD, United StatesHQ checked Sep 20, 2026	1,001-5,000	1,225 contacts →
	Indirect evidence “At Global Communities, we know lasting change starts locally.” Source: RevenueBase Database · checked Sep 20, 2026
25	Winrock International	Indirect evidence	Little Rock, AR, United StatesHQ checked Sep 20, 2026	201-500	1,166 contacts →
	Indirect evidence “Winrock is a recognized leader in U.S.” Source: RevenueBase Database · checked Sep 20, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: international development organizations. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names international development organizations.
Partial evidence: Its own public description names part of international development organizations, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name international development organizations. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 7,369 international development organizations worldwide

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International development organizations worldwide at a glance

As of Sep 20, 2026

23.6%Verified-email coverage

43.4Average contacts per company

11-50Median size (employees)

2.3%Largest-city concentration · London

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

3,288

11-50

2,385

51-200

932

201-500

366

501-1,000

157

1,001-5,000

126

5,001-10,000

10001+

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 international development organizations, 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 international development organizations are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “international development organizations”. 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 international development organizations), 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 international development organizations, 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, 75,551 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.

International development organizations by location

40 lists · largest first

Every International development 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 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 international development organizations, 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 international development organizations are there worldwide?

RevenueBase identified 7,369 international development organizations 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?

The World Bank, headquartered in Washington, tops this list with the largest team on record.

Which country has the most international development organizations?

The United States leads with 587 companies, followed by India (453) and the United Kingdom (321). Every international development organizations list by country and city is linked on this page.

Which city has the most international development organizations?

London leads with 172 headquartered companies, followed by Nairobi (105) and Washington (102).

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 75,551 verified decision-maker contacts tracked across these 7,369 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.