Company lists · Data refreshed September 2026

Top 25 Philanthropic organizations based in the United States

Name: Philanthropic organizations based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 3,085 companies tracked

RevenueBase identified 3,085 philanthropic organizations headquartered in the United States as of September 2026 and tracks 32,626 professional contacts across them, including 12,179 with verified work emails. New York is the largest hub.

This list covers philanthropic organizations headquartered in the 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

3,085Companies

32,626Contacts tracked

12,179Verified emails

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The 25 largest philanthropic organizations based in the United States

Ranked by team size

Top 25 of 3,085 philanthropic organizations based in the 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	Ford Foundation	Strong evidence	New York, NY, United StatesHQ checked Sep 20, 2026	201-500	884 contacts →
	Strong evidence “The Ford Foundation is a global, grant-making philanthropy that works to disrupt inequality in all its forms.” Source: RevenueBase Database · checked Sep 20, 2026
2	Open Society Foundations	Indirect evidence	New York, NY, United StatesHQ checked Sep 20, 2026	1,001-5,000	870 contacts →
	Indirect evidence “The Open Society Foundations work to build vibrant and inclusive democracies whose governments are accountable to their people.” Source: RevenueBase Database · checked Sep 20, 2026
3	Stand Together	Strong evidence	Arlington, VA, United StatesHQ checked Sep 20, 2026	1,001-5,000	742 contacts →
	Strong evidence “Stand Together is a philanthropic community that helps America’s boldest changemakers tackle the root causes of our country’s biggest problems.” Source: RevenueBase Database · checked Sep 20, 2026
4	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
5	RWJF	Strong evidence	Princeton, NJ, United StatesHQ checked Sep 20, 2026	201-500	517 contacts →
	Strong evidence “RWJF is a leading national philanthropy dedicated to taking bold leaps to transform health in our lifetime.” Source: RevenueBase Database · checked Sep 20, 2026
6	Fidelity Charitable	Indirect evidence	Boston, KY, United StatesHQ checked Sep 20, 2026	501-1,000	461 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 20, 2026
7	The Providencia Group	Indirect evidence	Ashburn, VA, United StatesHQ checked Sep 20, 2026	201-500	444 contacts →
	Indirect evidence “At Providencia we are focused on positively impacting the communities where we operate, the lives of vulnerable and underserved populations around the world, and the health of our…” Source: RevenueBase Database · checked Sep 20, 2026
8	Bloomberg Philanthropies	Strong evidence	New York, NY, United StatesHQ checked Sep 20, 2026	201-500	410 contacts →
	Strong evidence “Bloomberg Philanthropies works primarily to advance five areas globally: the Arts, Education, the Environment, Government Innovation and Public Health.” Source: RevenueBase Database · checked Sep 20, 2026
9	REN	Indirect evidence	Indianapolis, IN, United StatesHQ checked Sep 20, 2026	201-500	378 contacts →
	Indirect evidence “Ren is a driving force that powers people, ideas, and institutions for good.” Source: RevenueBase Database · checked Sep 20, 2026
10	Robin Hood	Strong evidence	New York, NY, United StatesHQ checked Sep 20, 2026	51-200	332 contacts →
	Strong evidence “We are NYC’s largest local poverty-fighting philanthropy, and since 1988, we have invested nearly $3 billion to elevate and fuel New Yorkers’ permanent escapes from poverty.” Source: RevenueBase Database · checked Sep 20, 2026
11	W.K. Kellogg Foundation	Indirect evidence	Battle Creek, MI, United StatesHQ checked Sep 20, 2026	201-500	319 contacts →
	Indirect evidence “The W.K.” Source: RevenueBase Database · checked Sep 20, 2026
12	Walton Family Foundation	Indirect evidence	Bentonville, AR, United StatesHQ checked Sep 20, 2026	51-200	305 contacts →
	Indirect evidence “We are a family-led organization, supporting multiple generations of Sam and Helen Walton’s family.” Source: RevenueBase Database · checked Sep 20, 2026
13	ROI Solutions	Indirect evidence	Medford, MA, United StatesHQ checked Sep 20, 2026	51-200	287 contacts →
	Indirect evidence “ROI Solutions provides the best products and services that enable nonprofits to solve the world’s problems.” Source: RevenueBase Database · checked Sep 20, 2026
14	TIDES	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 20, 2026	201-500	279 contacts →
	Strong evidence “Tides is a nonprofit and philanthropic organization committed to advancing social justice.” Source: RevenueBase Database · checked Sep 20, 2026
15	The Bonner Foundation	Strong evidence	Princeton, NJ, United StatesHQ checked Sep 20, 2026	n/a	270 contacts →
	Strong evidence “The Corella & Bertram Bonner Foundation is a private philanthropic organization based in Princeton, NJ.” Source: RevenueBase Database · checked Sep 20, 2026
16	Foundation Source	Strong evidence	Fairfield, CT, United StatesHQ checked Sep 20, 2026	201-500	268 contacts →
	Strong evidence “As the nation’s largest provider of foundation management services, we’re a trusted source for philanthropic expertise.” Source: RevenueBase Database · checked Sep 20, 2026
17	National Philanthropic Trust	Strong evidence	Jenkintown, PA, United StatesHQ checked Sep 20, 2026	201-500	258 contacts →
	Strong evidence “National Philanthropic Trust is a public charity dedicated to providing philanthropic expertise to donors, foundations and financial institutions, enabling them to realize their…” Source: RevenueBase Database · checked Sep 20, 2026
18	Schmidt Futures	Indirect evidence	NY, United StatesHQ checked Sep 20, 2026	51-200	214 contacts →
	Indirect evidence “Schmidt Futures supported projects at the intersection of talent and technology, centered on specific, finite challenges that are connected to other efforts in the Schmidt…” Source: RevenueBase Database · checked Sep 20, 2026
19	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
20	Conrad N. Hilton Foundation	Indirect evidence	Westlake Village, CA, United StatesHQ checked Sep 20, 2026	51-200	207 contacts →
	Indirect evidence “The Conrad N.” Source: RevenueBase Database · checked Sep 20, 2026
21	The David And Lucile Packard Foundation	Indirect evidence	Los Altos, CA, United StatesHQ checked Sep 20, 2026	51-200	194 contacts →
	Indirect evidence “The David and Lucile Packard Foundation is a family foundation guided by the enduring business philosophy and personal values of Lucile and David, who helped found one of the…” Source: RevenueBase Database · checked Sep 20, 2026
22	Cybergrants IS NOW Bonterra	Indirect evidence	Andover, MA, United StatesHQ checked Sep 20, 2026	51-200	188 contacts →
	Indirect evidence “CyberGrants is now Bonterra, part of a cohesive tech lineup under the Bonterra brand.” Source: RevenueBase Database · checked Sep 20, 2026
23	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
24	Michael & Susan Dell Foundation	Indirect evidence	Austin, TX, United StatesHQ checked Sep 20, 2026	51-200	179 contacts →
	Indirect evidence “The Michael & Susan Dell Foundation (dell.org) builds pathways that change lives for people and communities around the world.” Source: RevenueBase Database · checked Sep 20, 2026
25	UP With People Foundation	Indirect evidence	Denver, United StatesHQ checked Sep 20, 2026	n/a	175 contacts →
	Indirect evidence “The Up with People Foundation carries forward a global legacy that began in 1965 with a bold idea that young people, when empowered, can be a force for good in the world.” 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 3,085 philanthropic organizations based in the United States

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Philanthropic organizations based in the United States at a glance

As of Sep 20, 2026

37.3%Verified-email coverage

10.6Average contacts per company

1-10Median size (employees)

6.1%Largest-city concentration · New York

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

2,316

11-50

520

51-200

163

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 3,085 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 the 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 United States 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, 12,179 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

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 the United States?

RevenueBase identified 3,085 philanthropic organizations headquartered in the 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?

Ford Foundation, headquartered in New York, 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 12,179 verified decision-maker contacts tracked across these 3,085 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.