Company lists · Data refreshed September 2026

Top 25 Philanthropic organizations based in Washington, United States

Name: Philanthropic organizations 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 89 companies tracked

RevenueBase identified 89 philanthropic organizations headquartered in Washington, United States as of September 2026 and tracks 2,243 professional contacts across them, including 862 with verified work emails. New York is the largest hub.

This list covers philanthropic organizations 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

89Companies

2,243Contacts tracked

862Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest philanthropic organizations based in Washington, United States

Ranked by team size

Top 25 of 89 philanthropic organizations 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 philanthropic 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	Independent Sector	Strong evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	n/a	610 contacts →
	Strong evidence “Independent Sector is the national membership organization that connects, strengthens, and advocates for nonprofits and philanthropies.” Source: RevenueBase Database · checked Sep 20, 2026
2	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
3	Council On Foundations	Strong evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	51-200	186 contacts →
	Strong 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
4	Global Impact	Strong evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	51-200	170 contacts →
	Strong evidence “Global Impact serves as a trusted philanthropy advisor, intermediary, and nonprofit partner for greater giving.” Source: RevenueBase Database · checked Sep 20, 2026
5	Globalgiving	Indirect evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	51-200	108 contacts →
	Indirect evidence “GlobalGiving is a nonprofit that supports other community-led nonprofits by connecting them to donors and companies.” Source: RevenueBase Database · checked Sep 20, 2026
6	ORR Group	Strong evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	51-200	99 contacts →
	Strong evidence “Orr Group was born out of a need for event management and fundraising support in the philanthropic sector.” Source: RevenueBase Database · checked Sep 20, 2026
7	Bezos Earth Fund	Indirect evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	11-50	89 contacts →
	Indirect evidence “Built on the belief that Earth is the best planet in the solar system, Jeff Bezos & Lauren Sánchez Bezos have made a $10 billion commitment to protect and restore the natural…” Source: RevenueBase Database · checked Sep 20, 2026
8	Greater Washington Community Foundation	Strong evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	11-50	53 contacts →
	Strong evidence “The Greater Washington Community Foundation ignites the power of philanthropy, leads for community impact, and responds to critical community needs.” Source: RevenueBase Database · checked Sep 20, 2026
9	The Chronicle Of Philanthropy	Strong evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	51-200	51 contacts →
	Strong evidence “The Chronicle of Philanthropy is the No.” Source: RevenueBase Database · checked Sep 20, 2026
10	Philanthropy Roundtable	Strong evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	11-50	41 contacts →
	Strong evidence “The Philanthropy Roundtable is a national association of individual donors, corporate giving officers, and foundation trustees and staff.” Source: RevenueBase Database · checked Sep 20, 2026
11	Center For Disaster Philanthropy	Strong evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	11-50	34 contacts →
	Strong evidence “We mobilize philanthropy to strengthen the ability of all communities to withstand disasters and recover equitably when they occur.” Source: RevenueBase Database · checked Sep 20, 2026
12	National Center For Family Philanthropy Ncfp	Strong evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	11-50	32 contacts →
	Strong evidence “NCFP is a network of philanthropic families committed to a world that is vibrant, equitable, and resilient.” Source: RevenueBase Database · checked Sep 20, 2026
13	Amalgamated Foundation	Indirect evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	201-500	32 contacts →
	Indirect evidence “Building the giving platform of the future by empowering activism, harnessing generosity and leveraging technology.” Source: RevenueBase Database · checked Sep 20, 2026
14	Capital Research Center	Indirect evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	11-50	26 contacts →
	Indirect evidence “The Capital Research Center was established in 1984 to examine how foundations, charities, and other nonprofits spend money and get involved in politics and advocacy, often in…” Source: RevenueBase Database · checked Sep 20, 2026
15	Grantmakers For Effective Organizations GEO	Indirect evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	11-50	23 contacts →
	Indirect evidence “The GEO community makes the difference between grantmaking as usual and transformational change.” Source: RevenueBase Database · checked Sep 20, 2026
16	Community Wealth Partners	Indirect evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	11-50	23 contacts →
	Indirect evidence “Guided by our vision of a world where all people have what they need to fully live into their potential, we partner with nonprofits and foundations to create strategies, implement…” Source: RevenueBase Database · checked Sep 20, 2026
17	National Committee For Responsive Philanthropy	Strong evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	11-50	22 contacts →
	Strong evidence “The National Committee for Responsive Philanthropy in Washington, D.C, is a national watchdog, research and advocacy organization that promotes philanthropy that serves the public…” Source: RevenueBase Database · checked Sep 20, 2026
18	Grantmakers In Health	Strong evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	11-50	18 contacts →
	Strong evidence “Grantmakers In Health (GIH) is dedicated to helping philanthropic organizations and advisors improve the health of all people.” Source: RevenueBase Database · checked Sep 20, 2026
19	Hunt Alternatives	Indirect evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	11-50	17 contacts →
	Indirect evidence “Swanee Hunt Alternatives is a two-generation family operating foundation based in Washington, DC, with a multi-million dollar annual budget.” Source: RevenueBase Database · checked Sep 20, 2026
20	Exponent Philanthropy	Strong evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	11-50	16 contacts →
	Strong evidence “Exponent Philanthropy is the country’s largest association of funders and the only one dedicated to serving foundations with few or no staff, philanthropic families, and…” Source: RevenueBase Database · checked Sep 20, 2026
21	NEW Venture Fund	Strong evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	201-500	16 contacts →
	Strong evidence “New Venture Fund collaborates with individuals and institutions to provide fiscal sponsorship and project hosting support that enable them to reach their philanthropic goals.” Source: RevenueBase Database · checked Sep 20, 2026
22	English Hudson Consulting	Indirect evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	11-50	15 contacts →
	Indirect evidence “Founded by Lynn English and Marlissa Hudson, English Hudson aligns resources with mission-driven organizations through strategies that come from and are executed by the…” Source: RevenueBase Database · checked Sep 20, 2026
23	Russell Philanthropies	Indirect evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	1-10	14 contacts →
	Indirect evidence “We're on a mission to build a more equitable world.” Source: RevenueBase Database · checked Sep 20, 2026
24	Funders Together For Housing Justice	Strong evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	1-10	12 contacts →
	Strong evidence “Funders Together for Housing Justice (formerly Funders Together to End Homelessness) mobilizes its members to use philanthropy’s voice, influence, and financial capital to end…” Source: RevenueBase Database · checked Sep 20, 2026
25	Nanoe National Association Of Nonprofit Organizations & Executives	Indirect evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	11-50	12 contacts →
	Indirect evidence “Our Members Are Our Mission National Association of Nonprofit Organizations & Executives (NANOE) is a nationwide network of donors, volunteers and charitable leaders whose…” 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: philanthropic 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 philanthropic organizations.
Partial evidence: Its own public description names part of philanthropic organizations, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name philanthropic 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 89 philanthropic organizations based in Washington, United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 862 reachable decision-makers.

Free signup · no credit card

View the full list →

Philanthropic organizations based in Washington, United States at a glance

As of Sep 20, 2026

38.4%Verified-email coverage

25.2Average contacts per company

1-10Median size (employees)

210.1%Largest-city concentration · New York

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 89 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 philanthropic 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.
What qualifies: Companies headquartered in Washington, United States whose own description of what they do matches “philanthropic 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 philanthropic 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 philanthropic organizations, 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, 862 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.

Philanthropic organizations by metro in the United States

Philanthropic organizations in New York187
Philanthropic organizations in Washington89
Philanthropic organizations in Los Angeles87
Philanthropic organizations in Chicago83
Philanthropic organizations in San Francisco70
Philanthropic organizations in Boston46
Philanthropic organizations in Atlanta42
Philanthropic organizations in Austin39
Philanthropic organizations in Dallas39
Philanthropic organizations in San Diego37
Philanthropic organizations in Denver34
Philanthropic organizations in Seattle34
Philanthropic organizations in Houston31
Philanthropic organizations in Miami30
Philanthropic organizations in Philadelphia30
Philanthropic organizations in Minneapolis29

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 philanthropic 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 philanthropic organizations are there based in Washington, United States?

RevenueBase identified 89 philanthropic organizations 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?

Independent Sector, headquartered in Washington, tops this list with the largest team on record.

Which city has the most philanthropic organizations?

New York leads with 187 headquartered companies, followed by Washington (89) and Los Angeles (87).

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 862 verified decision-maker contacts tracked across these 89 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.

Ready to reach these companies? Verified emails and direct dials for all 89 philanthropic organizations based in Washington, United States. Start with a free account, no credit card.

Download this list →

Related lists

Philanthropic organizations by geography

Browse the directory

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.