· Private foundation
Walter and Lillian Siben Foundation
Its FY2022 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 FY2017–2022.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2022
- Under $10k8 grants · $29k
- $10k–50k13 grants · $227k
- $50k–250k4 grants · $500k
| Recipient | Amount |
|---|---|
| SCHWAB CHARITABLE FUND | $220,000 |
| PETA | $160,000 |
| THE SOUP KITCHEN INC | $60,000 |
| BETHESDA HOSPITAL FOUNDATION INC | $60,000 |
| FEEDING SOUTH FLORIDA | $40,000 |
| CARIDAD CENTER INC | $40,000 |
| CRAZY 8 CAT RESCUE | $20,000 |
| ANIMAL AID | $19,661 |
| LADY LUCK ANIMAL RESUCE INC | $15,000 |
| DARBSTER FOUNDATION INC | $15,000 |
| DEZZY'S SECOND CHANCE ANIMAL RESCUE | $15,000 |
| ERICS FREEDOM FLIGHT FOR SHELTER AN | $12,000 |
| DELRAY BEACH YOUTH TENNIS FOUNDATIO | $10,000 |
| UNITED CEREBRAL PALSY OF LONG ISLAN | $10,000 |
| NATIONAL HUMANE SOCIETY | $10,000 |
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 (FY17–22, $53k) land where the poverty rate runs at 11%, against an area that typically sits at 8%. 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.
29 repeat relationships — 17 still active in FY2022, 12 since wound down; 7 grantees were first funded in FY2022 (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 FY2022, 89% of grant dollars renewed an existing relationship; $57k 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
- PFPEOPLE FOR THE ETHICAL TREATMENT OF ANIMALS INC4× · 2017–2022 · $197k · revenue +147%
- TSThe Soup Kitchen Inc6× · 2017–2022 · $75k · revenue +447%
- BHBethesda Hospital Foundation Inc5× · 2017–2022 · $72k · revenue +186%
Funded once
- EAEVERGLADES ANGELS DOG RESCUE INCgraduatedone grant, 2019 · $4k · revenue +285%
- GKGood Karma Pet Rescue Incgraduatedone grant, 2017 · $2k · revenue +108%
- CCCOMMUNITY CATS COALITIONone grant, 2018 · $1k
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 rescue and adoption facilitator to permanent homes.
To assist in the medical care, misc care and rehoming of animals that do not have a home
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 eliminate euthanasia of treatable, adoptable dogs and cats in maricopa county through adoption, medical care, promotion of spay & neuter and owner education. hfg also operates a low-cost vaccine/microchip clinic each week to provide…
Provide loving care & home for approx 120 Feral Cats that are in danger out in streets/unadoptable. TNR projects for feral cat colonies around Horry County. Provide Vet & medication care for animals in-house.
We rescue cats and dogs suffered on the street and in endangered locations in both new york and china. the mission of our no-kill shelter is to provide stray cats with safe haven and veterinary care before placing them in forever loving…
Rescue pointer dogs and treat back to health and f
Our mission is to move adoptable dogs and cats primarily from heavily-burdened areas to loving homes. We work with trusted partners throughout the country and around the world and facilitate vet care, transport, and adoptions to help…
Animal rescue
Find homes for homeless/abandoned dogs. Provide full vet car and housing while awaiting adoption,
For reference, the grantee most central to the portfolio’s shape is Everglades Angels Dog Rescue Inc and the most unlike its peers is Crazy 8 Cat Rescue 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 23 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) — 3% of your grantees by number, and just 3% of your money.
The orgs you fund almost never close — 3% 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.
34 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. 34 of the 45 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 DONOR ADVISED CHARITABLE GIVING INC ↗
- Who funds PEOPLE FOR THE ETHICAL TREATMENT OF ANIMALS INC ↗
- Who funds The Soup Kitchen Inc ↗
- Who funds Bethesda Hospital Foundation Inc ↗
- Who funds Caridad Center Inc ↗
- Who funds FEEDING SOUTH FLORIDA INC ↗
- Who funds ANIMAL AID INC ↗
- Who funds CRAZY 8 CAT RESCUE INC ↗
- Who funds THE DARBSTER FOUNDATION INC ↗
- Who funds DEZZYS SECOND CHANCE ANIMAL RESCUE INC ↗
- Who funds SARASOTA IN DEFENSE OF ANIMALS INC ↗
- Who funds ERICS FREEDOM FLIGHT FOR SHELTER ANIMALS ↗
- Who funds UNITED CEREBRAL PALSY ASSOCIATION OF GREATER SUFFOLK INC ↗
- Who funds DELRAY BEACH YOUTH TENNIS FOUNDATION COR ↗
- Who funds SAVE THE CHIMPS INC ↗
- Who funds CARE LOVE GIVE INC ↗
- Who funds BEYOND NINE CAT RESCUE INC ↗
- Who funds FERAL CHANGE DBA FULL CIRCLE CATS ↗
- Who funds Vanderbilt University ↗
- Who funds EVERGLADES ANGELS DOG RESCUE INC ↗
- Who funds ZABAN PARADIES CENTER FOR HOMELESS COUPLES INC ↗
- Who funds Junior League of Atlanta Inc ↗
- Who funds OUR PALS PLACE INC ↗
- Who funds Anna L Haas Humane Society of Cobb County ↗
- Who funds LAKE CITY HUMANE SOCIETY INC ↗
- Who funds Good Karma Pet Rescue Inc ↗
- Who funds ATLANTA COMMUNITY FOOD BANK INC ↗
- Who funds FRIENDS TO THE FORLORN PITBULL RESCUE INC ↗
- Who funds PET RESCUE BY JUDY 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: Leslie L Alexander Foundation Inc · Assurant Foundation · Healthy Paws Foundation · The Batchelor Foundation Inc · The Community Foundation for Greater Atlanta Inc · Paypal Charitable Giving Fund · Enterprise Holdings Foundation · The Bank of America Charitable Foundation Inc · Jpmorgan Chase Foundation · Gs Donor Advised Philanthropy Fund for Wealth Management Inc · The Pfizer Foundation Inc · Network for Good
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 Walter and Lillian Siben 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.
- Feeding South Florida Inc — 5% of income from government
- Caridad Center 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.
Warm introductions · Powered by PlinthPlus
How do I get to Walter and Lillian Siben Foundation?
Find your warmest path to Walter and Lillian Siben Foundation 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.