· Private foundation
The Duffield Family Foundation Dba Maddie's Fund
Its FY2025 filing reports that it accepted unsolicited grant applications.
What you funded, over time
Every grant clustered by its grantee’s IRS cause code (NTEE), by year — across FY2017–2025.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2025
- Under $10k113 grants · $263k
- $10k–50k33 grants · $684k
- $50k–250k17 grants · $1.5M
- $250k+18 grants · $12M
| Recipient | Amount |
|---|---|
| COMPANIONS AND ANIMALS FOR REFORM AND EQUITY | $1,466,000 |
| SAN FRANCISCO SPCA | $1,158,767 |
| UC DAVIS FOUNDATION | $1,137,345 |
| CORNELL UNIVERSITY | $935,000 |
| HUMANE RESCUE ALLIANCE | $878,993 |
| UNIVERSITY OF WISCONSIN-MADISON | $827,014 |
| BEST FRIENDS ANIMAL SOCIETY | $750,000 |
| UNIVERSITY OF TENNESSEE | $704,983 |
| INQUIRING SYSTEMS INC | $625,000 |
| AUSTIN PETS ALIVE | $572,500 |
| JOYBOUND PEOPLE & PETS | $405,000 |
| OPEN DOOR VETERINARY COLLECTIVE | $403,103 |
| UNIVERSITY OF FLORIDA FOUNDATION | $335,090 |
| ALIGNCARE HEALTH INC | $330,000 |
| TEAM SHELTER USA LLC | $310,000 |
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 (FY17–25, $915k) land where the poverty rate runs at 14%, against an area that typically sits at 10%. 99% 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 +51% since the first grant, against +22% for the ones you funded once.
597 repeat relationships — 100 still active in FY2025, 497 since wound down; 81 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, 75% of grant dollars renewed an existing relationship; $3.5M 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
- APAUSTIN PETS ALIVE INC9× · 2017–2025 · $11M · revenue +30% · 32% of their budget
BEST FRIENDS ANIMAL SOCIETY9× · 2017–2025 · $7.7M · revenue +31%- HWHumane World for Animals Inc8× · 2017–2025 · $7.0M · revenue +46%
Funded once
- ECEDWARD CHARLES FOUNDATIONgraduatedone grant, 2017 · $750k · revenue +863%
- TZTARGET ZEROEDWARD CHARLES FOUNDATIONone grant, 2018 · $250k
- SAShelter Animals Countone grant, 2017 · $100k
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.
To help injured, abandoned and unwanted animals. We provide food, vet care that includes heartworm prevention and spay or neuter services, shelter and anything else needed.
To help rescue unwanted pets
Animal rescue organization dedicated to finding homes for animals at the animal shelter. we also provde vet care foster homes, and assistance with homing for special needs animals.
Find homes for homeless/abandoned dogs. Provide full vet car and housing while awaiting adoption,
Animal Rescue - finding homes for abandoned animals in Granite City, spaying and neutering stray animals and feral cats
An animal rescue/adoption Agency. Rescued animals are from kill shelters or owner surrenders facing hardship then rehabbed/medical completed while in foster care then adopted into loving homes.
Animal Rescue
Animal Welfare
For reference, the grantee most central to the portfolio’s shape is The Cat House On the Kings Inc and the most unlike its peers is Monmouth University Inc. 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 22 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) — 6% of your grantees by number, and just 2% of your money.
The orgs you fund almost never close — 2% 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.
971 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. 971 of the 1,585 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
Showing your 200 largest grantees by grant value.
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 AUSTIN PETS ALIVE INC ↗
- Who funds BEST FRIENDS ANIMAL SOCIETY ↗
- Who funds Humane World for Animals Inc ↗
- Who funds COMPANIONS AND ANIMALS FOR REFORM AND EQUITY INC ↗
- Who funds Cornell University ↗
- Who funds MUTTVILLE ↗
- Who funds THE SAN FRANCISCO SOCIETY FOR THE PREVENTION OF CRUELTY TO ANIMALS ↗
- Who funds WASHINGTON HUMANE SOCIETY ↗
- Who funds Berkeley East Bay Humane Society Inc dba Berkeley Humane ↗
- Who funds Joybound People and Pets FKA Tony La Russa's Animal Rescue Foundation ↗
- Who funds THE AMERICAN SOCIETY FOR THE PREVENTION OF CRUELTY TO ANIMALS ↗
- Who funds THE UC DAVIS FOUNDATION ↗
- Who funds OPEN DOOR VETERINARY COLLECTIVE ↗
- Who funds CHARLESTON ANIMAL SOCIETY ↗
- Who funds UNIVERSITY OF DENVER ↗
- Who funds EDWARD CHARLES FOUNDATION ↗
- Who funds NATIONAL ANIMAL CARE & CONTROL ASSOCIATION ↗
- Who funds DENVER DUMB FRIENDS LEAGUE ↗
- Who funds San Antonio Pets Alive Inc ↗
- Who funds INQUIRING SYSTEMS INC ↗
- Who funds Humane Network ↗
- Who funds CAT TOWN ↗
- Who funds The Association for Animal Welfare Advancement ↗
- Who funds Shelter Animals Count ↗
- Who funds HUMANE SOCIETY SILICON VALLEY ↗
- Who funds ANIMAL CARE AND CONTROL OF NEW YORK CITY INC ↗
- Who funds THE UNIVERSITY OF FLORIDA FOUNDATION INC ↗
- Who funds ALBEMARLE 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: Petco Love · Best Friends Animal Society · BISSELL Pet Foundation · The American Society for the Prevention of Cruelty to Animals · Banfield Foundation · Petsmart Charities Inc · Pedigree Foundation · Humane World for Animals Inc · The Michelson Found Animals Foundation Inc · Greater Good Charities · The Grey Muzzle Organization · Vca Charities
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 The Duffield Family Foundation Dba Maddie's Fund 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 or a single department — and drag the year to watch it move.
- Monmouth University Inc — 0% of income from government
- Animal Rescue League of Boston — 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.
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How do I get to The Duffield Family Foundation Dba Maddie's Fund?
Find your warmest path to The Duffield Family Foundation Dba Maddie's Fund through trustees and officers whose names appear on both boards. Search for your organization and Plinth traces the shortest route it can evidence.
Each link is a name appearing on two organizations’ public IRS 990 filings, matched on that name and, where the filings support it, on location. A same-state match has geographic support, which is a second matching feature rather than confirmation that the two are one person; a cross-state one is the likeliest to be two people who share a name. Every hop shows its tier, low-confidence and distant paths are held back rather than guessed, and it is worth confirming the person before you use the introduction.