Company lists · Data refreshed September 2026
Top 25 Community foundations based in the United States
RevenueBase identified 1,431 community foundations headquartered in the United States as of September 2026 and tracks 18,340 professional contacts across them, including 8,195 with verified work emails. New York is the largest hub.
This list covers community foundations 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 19, 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.
The 25 largest community foundations based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 319 contacts → | ||||
Indirect evidence “The W.K.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 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 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 294 contacts → | ||||
Indirect evidence “Grand St.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 232 contacts → | ||||
Partial evidence “We mobilize the caring power of Detroit and Southeastern Michigan to improve communities and individual lives across Wayne, Oakland, Washtenaw, and Macomb counties in measurable…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 185 contacts → | ||||
Partial evidence “United Way Miami is a driving force in the community, successfully responding to emerging needs and transforming people’s lives.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 166 contacts → | ||||
Partial evidence “For more than 100 years, United Way of Greater Cincinnati has developed, supported and strengthened social systems that improve lives in Greater Cincinnati communities.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 156 contacts → | ||||
Strong evidence “Communities Foundation of Texas has been a partner with donors for raising the quality of life in our community for more than 60 years.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 150 contacts → | ||||
Strong evidence “The mission of Oregon Community Foundation is to improve lives for all Oregonians through the power of philanthropy.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 149 contacts → | ||||
Strong evidence “Silicon Valley Community Foundation advances innovative philanthropic solutions to challenging problems.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 142 contacts → | ||||
Strong evidence “As our region's community foundation, The Chicago Community Trust has been here for all Chicagoans for over years.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 135 contacts → | ||||
Indirect evidence “We adhere to a deeply ethical approach to philanthropy, one that holds ourselves accountable to being a trustworthy partner and to approach our work with humility and respect for…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 134 contacts → | ||||
Indirect evidence “United Way mobilizes people to action so that all can thrive.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 132 contacts → | ||||
Strong evidence “The Boston Foundation is one of the nation’s first and most impactful community foundations, with $1.9 billion in assets.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 129 contacts → | ||||
Partial evidence “United Way of Metro Chicago brings together business, government, philanthropic, individual, and community leaders to deliver funding and resources while amplifying the expertise…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 128 contacts → | ||||
Indirect evidence “United Way of Southwestern Pennsylvania, serving Allegheny, Butler, Westmoreland, Fayette & Southern Armstrong counties, leads and mobilizes the caring power of individuals, the…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 127 contacts → | ||||
Strong evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 123 contacts → | ||||
Partial evidence “Automotive pioneer Charles Stewart Mott established the private charitable foundation that bears his name in 1926 in Flint, Michigan.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 119 contacts → | ||||
Partial evidence “United Way of Utah County brings communities together to find strength and share hope.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 112 contacts → | ||||
Partial evidence “FirstDay Foundation is a charitable foundation created to provide philanthropic grants, management and governance services to nonprofit organizations doing good work in local…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 111 contacts → | ||||
Strong evidence “The California Community Foundation (CCF) is L.A.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 106 contacts → | ||||
Partial evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 106 contacts → | ||||
Partial evidence “We envision a community where our children thrive, strong households create pathways out of poverty to prosperity, and Greater Louisville is an equitable community where zip code…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 100 contacts → | ||||
Partial evidence “United Way of Tarrant County, a nonprofit leader in North Texas, mobilizes our community to action so all can thrive.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 90 contacts → | ||||
Indirect evidence “Spencer and Julie Penrose established El Pomar in 1937 with a mission to enhance, encourage, and promote the current and future well-being of the people of Colorado.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 89 contacts → | ||||
Strong evidence “The Community Foundation for Greater Atlanta inspires and leads the Atlanta region toward equity and shared prosperity for all who call it home.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
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: community foundations. 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 community foundations.
- Partial evidence
- Its own public description names part of community foundations, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name community foundations. 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 1,431 community foundations based in the United States
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Community foundations based in the United States at a glance
As of Sep 19, 2026Companies by employee count
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 1,431 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 community foundations, 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 “community foundations”. 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 community foundations), 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 community foundations, 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, 8,195 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 19, 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.
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 community foundations, 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 community foundations are there based in the United States?
RevenueBase identified 1,431 community foundations 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?
W.K. Kellogg Foundation, headquartered in Battle Creek, tops this list with the largest team on record.
Which city has the most community foundations?
New York leads with 17 headquartered companies, followed by Chicago (14) and San Francisco (14).
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 8,195 verified decision-maker contacts tracked across these 1,431 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 19, 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.
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