· 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 you funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year — across FY2022–2025.
Where the money goes
Your grants by size, and where they go.
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 |
| THE SATANIC TEMPLE | $1,000 |
| COUNTY THEATER | $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 |
| TREVOR PROJECT | $500 |
| Individual grant recipient | $500 |
Do your dollars go where the need is?
Each grant placed by the hardship in its grantee’s ZIP, then read against the area’s typical level.
Your 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 your grants land in higher-need ZIPs.
Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty linein the grantee’s ZIP, averaged from the tracts in that ZIP; grantee ZIP can differ from where services are delivered.
Which US states your grants reach
US grants placed by each grantee’s ZIP, which can differ from where services are actually delivered. Need from public data — U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA — shown as context about the area, never attributed to your giving.
Who you back again
Which organizations you funded more than once, and which you funded a single time. Each grantee is matched to its own filings.
And the relationships you keep tend to grow: grantees you re-up on have seen median revenue of +32% since the first grant, against 0% for the ones you 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
First-time = a grantee’s first year in your filing window; renewed = funded in an earlier year too. As a portfolio matures the renewed share naturally climbs — once funded, an org stays “renewable” — so the signal is the years that buck it (a new-grantee intake wave). The earliest year is left-censored: relationships that predate the data read as “new.” Theme is the grantee’s IRS cause.
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
Repeat = funded in two or more distinct years; growth and survival are read from each grantee’s own subsequent IRS filings.
The map has a center of gravity: the average direction from the rest of the sector toward the organizations the foundation funds — the shape of its giving. Scoring every nonprofit along that direction surfaces the ones that look most like the portfolio. These are the closest matchesthat aren’t grantees — 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,…
For reference, the grantee most central to the portfolio’s shape is Naples Botanical Garden Inc and the most unlike its peers is National Multiple Sclerosis Society. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
For each theme you fund, this compares how the sector’s money is shifting with how your own giving is shifting.
Sector change and giving change are each shown relative to their own range, growing (right) or shrinking (left); both normalized, so inflation isn’t mistaken for growth.
Your grantees are a median of 33 years old; the field is 16. You back the established end — and your money leans older still.
The field is 22% startups (under 5 years old) — 0% of your grantees by number, and just 0% of your money.
The orgs you fund almost never close — 0.0% lost their exemption, against 13% of the field you don’t fund.
Age = years since IRS exemption (a founding proxy). “Closed” = auto-revocation for 3 years of non-filing — a floor on closure, not proof, and bigger established orgs lapse least. Association, not causation.
31 grantees tracked through their own filings, 2017–2025.
Each one resolved to its own IRS returns and tracked year by year — your grant beside their revenue from every source. Association, dated; never a causal claim.
Counted here: distinct organizations you funded across 2017–2025, 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; the rest are funded organizations whose filings we could not track year by year.
Where your money sits — by cause, then by grantee
Each org by its size and your share of it — top-left is where you’re load-bearing
Go grantee by grantee — a decade per org, and how each moved after you funded them
A decade per grantee — revenue shaded, your 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 PREVENTION POINT PHILADELPHIA INC ↗
- Who funds PBS FOUNDATION ↗
- 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 THE GLOBAL HUNGER PROJECT ↗
- Who funds AMERICAN NEAR EAST REFUGEE AID ↗
- Who funds CHAPIN SCHOOL ↗
- Who funds THE SENTENCING PROJECT ↗
- Who funds WOMEN'S HUMANE SOCIETY FOR THE PREVENTION OF CRUELTY TO ANIMALS INC ↗
The grantmakers whose grantees overlap with yours far more than size alone predicts. Each orbits closer the stronger the alignment; the arcs between them show where they also fund each other. Here it reads as a tightly interlocked camp — 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
Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. A research starting point: overlap is association, not proof of shared intent.
Government reliance of your grantees
Every dot is one organization Mayer Family Foundation funds. Left–right is the share of its income from government; up–down is the share from you. Bigger dots raise more. Filter to federal, a single department, or state — and drag the year to watch it move.
- 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
Government income is each org’s traced federal awards (USASpending — grants and contracts) plus state payments (open checkbooks) as a share of its total revenue (IRS Form 990); the self-reported government-grant line (990 line 1e) is carried for cross-check: a grantee that reports government grants we could not trace to a source is left off the chart rather than shown as receiving none. An association, not a claim that your grant caused the public funding. Coverage is precision-first — a floor, not a census; state records exist for 9 states, so a grantee outside them shows no state figure (dimmed) rather than a false zero. Federal award amounts are obligations, which can span years, so a single-year share is indicative. 990 filings lag 12–24 months.