· Private foundation
Mayer Family Foundation
Its FY2025 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.
What it funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year, FY2022 to 2025.
Where the money goes
Grants by size, and the largest recipients.
By grant size · FY2025
- Under $10k36 grants · $15k
- $10k–50k1 grant · $15k
| Recipient | Amount |
|---|---|
| ANCHOR HOUSE | $15,000 |
| WALNUT RUN ANIMAL SANCTUARY | $1,500 |
| Individual grant recipient | $1,000 |
| PENN MEDICINE | $1,000 |
| COUNTY THEATER | $1,000 |
| THE SATANIC TEMPLE | $1,000 |
| NPR | $865 |
| NATIONALITIES SERVICE CENTER | $750 |
| PLANNED PARENTHOOD | $750 |
| BUCKS COUNTY FREE LIBRARY | $600 |
| PBS FOUNDATION | $500 |
| ACME SCREENING ROOM | $500 |
| Individual grant recipient | $500 |
| Individual grant recipient | $500 |
| TREVOR PROJECT | $500 |
Does the money reach high-need areas?
Each grant placed by the hardship in its grantee’s ZIP, against the area’s typical level.
Its human-services grants (FY22–25, $36k) land where the poverty rate runs at 11%, against an area that typically sits at 10%. 100% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.
How this is measured
Which US states its grants reach
How this is measured
Who it funds again
Organizations funded in more than one year, against those funded once.
Grantees it renews have grown median revenue +32% since the first grant, against 0% for those funded once.
24 repeat relationships: 20 still active in FY2025, 4 since wound down; 17 grantees were first funded in FY2025 (too recent to call).
How the two cohorts compare
Organizations
Total granted
Median revenue growth · since first grant
Still filing today
New vs renewed · share of each year
In FY2025, 82% of grant dollars renewed an existing relationship; $5k went to new ones.
Where new relationships form · theme of each grantee’s first grant
How this is measured
Backed again, and grew
ANCHOR HOUSE INC3× · 2022–2025 · $35k · revenue +47%- CTCOUNTY THEATER INC4× · 2022–2025 · $2k · revenue +30%
- CFCENTER FOR BIOLOGICAL DIVERSITY INC2× · 2023–2024 · $2k · revenue +33%
Funded once
- PPPREVENTION POINT PHILADELPHIA INCgraduatedone grant, 2024 · $500 · revenue +28%
- GFGIVEWELL FUNDone grant, 2022 · $500
- IGIndividual grant recipientone grant, 2022 · $410
How this is measured
Repeat means funded in two or more distinct years. Growth and survival are read from each grantee’s own subsequent IRS filings.
Closest unfunded matches
The nonprofits that most resemble its grantees but are not funded by it, scored along the direction from the rest of the field toward the portfolio. A resemblance in what they say they do, not a recommendation.
Animal outlook is a national animal protection organization working to end the abuse of farmed animals using a variety of strategies, including investigations, legal advocacy, corporate and food system reform, and vegan outreach.
The zoological society of pittsburgh is dedicated to being a leader in, and significant contributor to, the conservation of endangered and threatened species. the society provides an enjoyable family experience that fosters understanding,…
Animal care sanctuary's lifesaving mission as a no kill organization envisions a community that promotes turning compassion into action for companion animals by: 1.) adopting healthy pet companions into loving homes. 2.) promoting the…
Naples zoo is accredited by the american zoo & aquarium association (aza) and has numerous animal exhibits placed on its 45-acre site. (continued on schedule o)each exhibit is unique and designed to simulate typical conditions for the…
Marin humane transforms lives through exceptional animal care, humane education, and advocacy. every day, marin humane inspires compassion and positive relationships between people and animals.
At philadelphia zoo, our mission is to flourish as an urban oasis, where people and animals thrive, transformational memories are made, and our passion for conservation saves wildlife (see schedule o).guided by a three-year strategic plan,…
The aquarium of the pacific's mission is to instill a sense of wonder, respect, and stewardship for the pacific ocean, its inhabitants, and ecosystems.
To establish and promote programs to protect the global climate, forests, wildlife and the natural environment, through research, advocacy, and investigation.
The friends are dedicated to the rescue, protection, and adoption of companion animals in need while inspiring the human-animal bond. we meet our mission by:-saving 100% of healthy and treatable animals.-providing high-quality animal care…
The organization's mission is to conserve and promote new england's native plants to ensure healthy, biologically diverse landscapes.
Rainforest trust saves endangered wildlife and protects our planet by creating rainforest reserves through partnerships, community engagement, and donor support.
Advance science, engineering, and innovation throughout the world for the benefit of all. the world's largest multidisciplinary scientific society and a leading publisher of cutting-edge research through its science family of journals,…
How this is measured
31 grantees tracked through their own filings, 2017–2025.
Each grant beside the grantee’s revenue from every source, year by year.
How this is measured
Counted here: distinct organizations funded across 2017 to 2025, not grant rows in a single year, so this will not match the grant count on the cover. 31 of the 59 grantees resolved in that span have returns of their own we could reconcile.
Each grantee is resolved to its own IRS returns. Association, dated; never a causal claim.
Where the money sits, by cause and then by grantee
Each grantee by its size and the funder’s share of it; top left is load-bearing
Grantee by grantee: a decade per organization, before and after funding
A decade per grantee: revenue shaded, grants as bars, all rows on one timeline.
- Who funds ANCHOR HOUSE INC ↗
- Who funds COUNTY THEATER INC ↗
- Who funds CENTER FOR BIOLOGICAL DIVERSITY INC ↗
- Who funds TREVOR PROJECT INC ↗
- Who funds EQUAL JUSTICE INITIATIVE ↗
- Who funds BUCKS COUNTY FREE LIBRARY ↗
- Who funds ACME SCREENING ROOM ↗
- Who funds WILDLIFE CENTER FRIENDS INC ↗
- Who funds OLIGO NATION ↗
- Who funds NATIONALITIES SERVICE CENTER OF PHILADELPHIA ↗
- Who funds PBS FOUNDATION ↗
- Who funds PREVENTION POINT PHILADELPHIA INC ↗
- Who funds NATIONAL MULTIPLE SCLEROSIS SOCIETY ↗
- Who funds THE CONSERVANCY OF SOUTHWEST FLORIDA ↗
- Who funds ANIMAL ALLIANCE INC ↗
- Who funds INTERNATIONAL FUND FOR ANIMAL WELFARE INC ↗
- Who funds NAPLES BOTANICAL GARDEN INC ↗
- Who funds PET PARTNERS ↗
- Who funds AMERICAN NEAR EAST REFUGEE AID ↗
- Who funds THE SENTENCING PROJECT ↗
- Who funds FRIENDS SELECT SCHOOL ↗
Co-funders
Grantmakers whose grantees overlap with this funder’s far more than size alone predicts. Closer means stronger alignment; arcs show where they also fund each other. Here they form a tightly interlocked group: most of these funders back each other's grantees too.
Open a dossier: The Robert Wood Johnson Foundation · Chubb Charitable Foundation · Jpmorgan Chase Foundation · The Pfizer Foundation Inc · Ge Aerospace Foundation · Bristol-Myers Squibb Foundation Inc · The Bank of America Charitable Foundation Inc · Charities Aid Foundation America · The Cigna Group Foundation · Princeton Area Community Foundation Inc · Verizon Foundation · Vanguard Charitable Endowment Program
How this is measured
How much its grantees rely on government
Each dot is one organization Mayer Family Foundation funds: left to right is the share of its income from government, bottom to top the share from Mayer Family Foundation. Bigger dots raise more.
- Anchor House Inc: 45% of income from government
- Naples Botanical Garden Inc: 3% of income from government
- Avow Hospice Inc: 0% of income from government
How this is measured
Play a game based on Mayer Family’s filings →