Company lists · Data refreshed September 2026

Top 25 International non-profits based in Washington, United States

Name: International non-profits based in Washington, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 236 companies tracked

RevenueBase identified 236 international non-profits headquartered in Washington, United States as of September 2026 and tracks 35,709 professional contacts across them, including 12,459 with verified work emails. New York is the largest hub.

This list covers international non-profits headquartered in Washington, United States, 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.

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

236Companies

35,709Contacts tracked

12,459Verified emails

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The 25 largest international non-profits based in Washington, United States

Ranked by team size

Top 25 of 236 international non-profits based in Washington, United States, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to international non-profits: 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	Palladium Make IT Possible	Indirect evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	1,001-5,000	2,886 contacts →
	Indirect evidence “Climate change.” Source: RevenueBase Database · checked Sep 20, 2026
2	PACT	Partial evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	501-1,000	1,336 contacts →
	Partial 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
3	Project Hope	Indirect evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	501-1,000	848 contacts →
	Indirect evidence “Founded in 1958, Project HOPE is a leader in global health development and emergency relief programs.” Source: RevenueBase Database · checked Sep 20, 2026
4	Counterpart International	Indirect evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	201-500	592 contacts →
	Indirect evidence “Counterpart partners with local organizations around the world to build sustainable communities in which people thrive.” Source: RevenueBase Database · checked Sep 20, 2026
5	Corpsafrica	Indirect evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	201-500	580 contacts →
	Indirect evidence “CorpsAfrica is a 501(c)(3) nonprofit organization founded in 2011 by a former Peace Corps Volunteer seeking to recognize and build on Peace Corps's enormous success by offering…” Source: RevenueBase Database · checked Sep 20, 2026
6	United Nations Foundation	Indirect evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	201-500	477 contacts →
	Indirect evidence “Since 1998, the United Nations Foundation has built novel innovations and partnerships to support the United Nations and help solve global problems at scale.” Source: RevenueBase Database · checked Sep 20, 2026
7	IFAW	Indirect evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	201-500	355 contacts →
	Indirect evidence “IFAW explores new ways to improve conditions for animals, people, and the place we call home-and we’ve been leading the way for over 50 years.” Source: RevenueBase Database · checked Sep 20, 2026
8	Immap INC	Partial evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	201-500	300 contacts →
	Partial evidence “iMMAP is an international nonprofit organization that provides information management services to humanitarian and development partners, enabling them to make informed decisions…” Source: RevenueBase Database · checked Sep 20, 2026
9	Corus International	Partial evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	501-1,000	244 contacts →
	Partial evidence “Corus International is an ensemble of long-serving, global leaders in international development and humanitarian assistance committed to ending poverty and building healthy…” Source: RevenueBase Database · checked Sep 20, 2026
10	Partners Of The Americas	Indirect evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	n/a	237 contacts →
	Indirect evidence “When it comes to changing the world, no one can do it alone.” Source: RevenueBase Database · checked Sep 20, 2026
11	Equal Access International	Strong evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	201-500	230 contacts →
	Strong evidence “Equal Access International is a global not-for-profit organization (501(c)(3)), headquartered in Washington, D.C.” Source: RevenueBase Database · checked Sep 20, 2026
12	Results For Development	Strong evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	51-200	221 contacts →
	Strong evidence “Results for Development (R4D) is a leading non-profit global development partner.” Source: RevenueBase Database · checked Sep 20, 2026
13	M R	Indirect evidence	Washington, United StatesHQ checked Sep 20, 2026	51-200	208 contacts →
	Indirect evidence “We are M+R.” Source: RevenueBase Database · checked Sep 20, 2026
14	Plan International USA	Partial evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	51-200	188 contacts →
	Partial evidence “Plan International is an international development and humanitarian assistance nonprofit that advances children’s rights and equality for girls.” Source: RevenueBase Database · checked Sep 20, 2026
15	Council On Foundations	Indirect evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	51-200	186 contacts →
	Indirect evidence “The Council on Foundations is a nonprofit membership association that serves as a guide for philanthropies as they advance the greater good.” Source: RevenueBase Database · checked Sep 20, 2026
16	Education For Employment	Indirect evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	51-200	171 contacts →
	Indirect evidence “We are the leading nonprofit job placement network in the Middle East and North Africa.” Source: RevenueBase Database · checked Sep 20, 2026
17	Global Impact	Indirect evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	51-200	170 contacts →
	Indirect evidence “Global Impact serves as a trusted philanthropy advisor, intermediary, and nonprofit partner for greater giving.” Source: RevenueBase Database · checked Sep 20, 2026
18	NURU	Indirect evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	n/a	159 contacts →
	Indirect evidence “Nuru is a global collective that enables inclusive and sustainable prosperity by identifying communities at the stability tipping point, strengthening rural livelihoods and market…” Source: RevenueBase Database · checked Sep 20, 2026
19	AGA Khan Foundation USA	Indirect evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	n/a	155 contacts →
	Indirect evidence “The Aga Khan Foundation is a leading global development organization working to tackle the root causes of poverty.” Source: RevenueBase Database · checked Sep 20, 2026
20	Accountability LAB	Indirect evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	51-200	149 contacts →
	Indirect evidence “Our vision is a world in which people with power are accountable.” Source: RevenueBase Database · checked Sep 20, 2026
21	Tanager	Partial evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	11-50	148 contacts →
	Partial evidence “Tanager, an affiliate of ACDI/VOCA, is an international nonprofit that brings people together at the table, on the ground, and across supply chains to co-create economic and…” Source: RevenueBase Database · checked Sep 20, 2026
22	The Konterra Group	Partial evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	11-50	140 contacts →
	Partial evidence “At KonTerra, we support organizations that manage international development, humanitarian and emergency management operations.” Source: RevenueBase Database · checked Sep 20, 2026
23	Interaction	Indirect evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	11-50	134 contacts →
	Indirect evidence “Convener.” Source: RevenueBase Database · checked Sep 20, 2026
24	Pyxera Global	Indirect evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	51-200	131 contacts →
	Indirect evidence “Pyxera Global is a nonprofit social enterprise that connects global resources with local expertise to address our world’s most pressing challenges, one community at a time.” Source: RevenueBase Database · checked Sep 20, 2026
25	Eurasia Foundation	Partial evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	51-200	118 contacts →
	Partial evidence “Eurasia Foundation is a nonprofit international development organization committed to the idea that societies function best when people take responsibility for their own civic and…” 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 non-profits. 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 non-profits.
Partial evidence: Its own public description names part of international non-profits, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name international non-profits. 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 236 international non-profits based in Washington, United States

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International non-profits based in Washington, United States at a glance

As of Sep 20, 2026

34.9%Verified-email coverage

151.3Average contacts per company

11-50Median size (employees)

106.4%Largest-city concentration · New York

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

105

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

Email recency for this list is measured across the whole United States list rather than for Washington, so it is reported there. Company counts and contact totals on this page are exact for Washington, over 236 companies.

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 non-profits, 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.
What qualifies: Companies headquartered in Washington, United States whose own description of what they do matches “international non-profits”. 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 non-profits), 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 non-profits, and records with no verified work email. Companies headquartered outside Washington are excluded even when they keep an office there.
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, 12,459 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 non-profits by metro in the United States

International non-profits in New York251
International non-profits in Washington236
International non-profits in Los Angeles70
International non-profits in San Francisco64
International non-profits in Seattle49
International non-profits in Atlanta47
International non-profits in Chicago42
International non-profits in Boston38
International non-profits in Miami38
International non-profits in New York City38
International non-profits in Arlington31
International non-profits in Austin26
International non-profits in Denver26
International non-profits in San Diego25

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 non-profits, 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 non-profits are there based in Washington, United States?

RevenueBase identified 236 international non-profits headquartered in Washington, United States 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?

Palladium Make IT Possible, headquartered in Washington, tops this list with the largest team on record.

Which city has the most international non-profits?

New York leads with 251 headquartered companies, followed by Washington (236) and Los Angeles (70).

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 12,459 verified decision-maker contacts tracked across these 236 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.