Company lists · Data refreshed September 2026

Top 25 Grantmaking organizations based in the United States

RevenueBase identified 1,470 company matches for grantmaking organizations associated with the United States as of September 2026 and tracks 16,046 professional contacts across them, including 6,900 with verified work emails. New York is the largest hub.

This list covers company matches for grantmaking organizations associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 20, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 20, 2026 How this list was built
1,470Companies
16,046Contacts tracked
6,900Verified emails
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The 25 largest grantmaking organizations based in the United States

Ranked by team size
Top 25 of 1,470 company matches for grantmaking organizations based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchNew York, NY, United StatesHQ recorded Sep 20, 2026201-500884 contacts →

Exact match

“The Ford Foundation is a global, grant-making philanthropy that works to disrupt inequality in all its forms.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
2Exact matchNew York, NY, United StatesHQ recorded Sep 20, 202651-200539 contacts →

Exact match

“The Andrew W.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3Exact matchBoston, KY, United StatesHQ recorded Sep 20, 2026501-1,000461 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
4Exact matchNew York, NY, United StatesHQ recorded Sep 20, 2026201-500410 contacts →

Exact match

“Bloomberg Philanthropies works primarily to advance five areas globally: the Arts, Education, the Environment, Government Innovation and Public Health.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
5Exact matchIndianapolis, IN, United StatesHQ recorded Sep 20, 2026201-500378 contacts →

Exact match

“Ren is a driving force that powers people, ideas, and institutions for good.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6Exact matchAlpharetta, GA, United StatesHQ recorded Sep 20, 2026201-500296 contacts →

Exact match

“At the National Christian Foundation (NCF), we understand the challenges that come with being entrusted with much.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
7Exact matchSan Francisco, CA, United StatesHQ recorded Sep 20, 2026201-500279 contacts →

Exact match

“Tides is a nonprofit and philanthropic organization committed to advancing social justice.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
8Exact matchAustin, TX, United StatesHQ recorded Sep 20, 2026201-500265 contacts →

Exact match

“GrantWorks has secured and managed more than $14 billion in grant funding for 725+ local government clients.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9Exact matchJenkintown, PA, United StatesHQ recorded Sep 20, 2026201-500258 contacts →

Exact match

“National Philanthropic Trust is a public charity dedicated to providing philanthropic expertise to donors, foundations and financial institutions, enabling them to realize their…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10Exact matchWestlake Village, CA, United StatesHQ recorded Sep 20, 202651-200207 contacts →

Exact match

“The Conrad N.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11Exact matchDallas, TX, United StatesHQ recorded Sep 20, 202651-200156 contacts →

Exact match

“Communities Foundation of Texas has been a partner with donors for raising the quality of life in our community for more than 60 years.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
12Exact matchAlexandria, VA, United StatesHQ recorded Sep 20, 202651-200138 contacts →

Exact match

“CAF America is a global world-class grantmaking organization assisting corporations, foundations, and individuals.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
13Exact matchNew York, CA, United StatesHQ recorded Sep 20, 202651-200136 contacts →

Exact match

“Rockefeller Philanthropy Advisors (RPA) accelerates philanthropy in pursuit of a just world.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
14Exact matchBoston, MA, United StatesHQ recorded Sep 20, 202651-200132 contacts →

Exact match

“The Boston Foundation is one of the nation’s first and most impactful community foundations, with $1.9 billion in assets.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
15Exact matchSoutheastern, PA, United StatesHQ recorded Sep 20, 202651-200132 contacts →

Exact match

“Vanguard Charitable is a leading U.S.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16Exact matchBozeman, MT, United StatesHQ recorded Sep 20, 202651-200130 contacts →

Exact match

“Our mission is to maximize the impact of the philanthropic community.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
17Exact matchSan Francisco, CA, United StatesHQ recorded Sep 20, 202651-200127 contacts →

Exact match

“Founded in 1948, the San Francisco Foundation is one of the nation’s largest community foundations, a grantmaking public charity dedicated to improving life within a specific…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
18Exact matchFlint, MI, United StatesHQ recorded Sep 20, 202651-200123 contacts →

Exact match

“Automotive pioneer Charles Stewart Mott established the private charitable foundation that bears his name in 1926 in Flint, Michigan.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
19Exact matchSan Antonio, TX, United StatesHQ recorded Sep 20, 202651-200112 contacts →

Exact match

“FirstDay Foundation is a charitable foundation created to provide philanthropic grants, management and governance services to nonprofit organizations doing good work in local…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20Exact matchLos Angeles, CA, United StatesHQ recorded Sep 20, 202651-200111 contacts →

Exact match

“The California Community Foundation (CCF) is L.A.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
21Exact matchCharlotte, NC, United StatesHQ recorded Sep 20, 202651-200106 contacts →

Exact match

“Remarkable impact is the heart of Foundation For The Carolinas’ mission – and the driving force behind our mission is the collective impact of thousands of nonprofits, families…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
22Exact matchSan Francisco, United StatesHQ recorded Sep 20, 202651-200104 contacts →

Exact match

“Open Philanthropy’s mission is to help others as much as we can with the resources available to us.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
23Exact matchChicago, IL, United StatesHQ recorded Sep 20, 2026201-500102 contacts →

Exact match

“Founded in 1943, Hektoen Institute offers a full-service, turn-key grant management solution for nonprofit organizations and municipalities.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
24Exact matchBoston, MA, United StatesHQ recorded Sep 20, 202651-200100 contacts →

Exact match

“New Profit is a venture philanthropy organization that backs social entrepreneurs who are expanding access and opportunity in America.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
25Exact matchOakland, United StatesHQ recorded Sep 20, 202651-20090 contacts →

Exact match

“GiveWell is a nonprofit dedicated to helping people in need as much as we can by researching the most cost‑effective ways to save and improve lives, sharing our work openly, and…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase

Showing 25 of 1,470 grantmaking organizations based in the United States

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Grantmaking organizations based in the United States at a glance

As of Sep 20, 2026
43.0%Verified-email coverage
10.9Average contacts per company
1-10Median size (employees)
6.2%Largest-city concentration · New York
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
1,149
11-50
229
51-200
65
201-500
17
501-1,000
5
1,001-5,000
1
5,001-10,000
1

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 1,470 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with the United States whose business descriptions match “grantmaking organizations” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 6,900 professional contacts with verified work emails across the full matched dataset. 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.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “grantmaking organizations”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many grantmaking organizations are there based in the United States?

RevenueBase identified 1,470 company matches for grantmaking organizations associated with the United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Ford Foundation tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most grantmaking organizations?

New York leads with 91 company records, followed by Los Angeles (40) and San Francisco (38).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 6,900 professional contacts with verified work emails tracked across these 1,470 companies; direct dials are available where recorded.

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 1,470 grantmaking organizations based in the United States. Start with a free account, no credit card.

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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 SmartSearch, 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.