· Private foundation
The Tarnok Family Foundation Inc
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 FY2017–2025.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2025
- Under $10k34 grants · $118k
- $10k–50k5 grants · $50k
| Recipient | Amount |
|---|---|
| Westmoreland Sanctuary | $10,000 |
| Stephen Siller Tunnel to Towers Fdn | $10,000 |
| Mt Kisco Interfaith Food Pantry | $10,000 |
| Why Hunger | $10,000 |
| Marsh Sanctuary | $10,000 |
| Northern Westchester Hospital Found | $7,500 |
| Metropolitan Ministries of Tampa | $7,500 |
| USO | $7,500 |
| All Faiths Food Bank | $7,500 |
| The WPF Camp Morty | $7,500 |
| Center of Hope Neighborhood Church | $6,500 |
| Emergency Shelter Partnership | $6,000 |
| Mt Kisco Historical Society | $6,000 |
| Community Center of Northern Westch | $5,000 |
| Boys and Girls Club of Mt Kisco | $5,000 |
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, $15k) land where the poverty rate runs at 9%, against an area that typically sits at 11%. 0% of those dollars go to grantees based in above-average-need neighborhoods. Your grants skew toward lower-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 +76% since the first grant, against 0% for the ones you funded once.
47 repeat relationships — 34 still active in FY2025, 13 since wound down; 4 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, 95% of grant dollars renewed an existing relationship; $9k 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
- GHGlobal Health Council6× · 2017–2022 · $89k · revenue +139%
- WIWHYHUNGER INC9× · 2017–2025 · $62k · revenue +95%
- NWNORTHERN WESTCHESTER HOSPITAL ASSOCIATION2× · 2017–2018 · $50k · revenue +94%
Funded once
- TBThe Blanche Gische Helen Schurkmanone grant, 2020 · $5k
- HCHawaii Community Foundation Maui Stone grant, 2023 · $5k
- CFCENTER FOR DISASTER PHILANTHROPY INCone grant, 2024 · $5k · revenue 0%
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.
Operate a state-of-the-art, world-class genomic research center that creates and uses advanced genomics to understand the genetic basis of disease. for more information, see schedule o.
Project drawdown's mission is to drive meaningful climate action by advancing science-based solutions and strategies. project drawdown's work is focused on three pillars: science - advancing science-based climate solutions and strategies;…
Leadership in the prevention, treatment, and cure of cancer through excellence, vision and cost effectiveness in patient care, outreach programs, research, and education.
The museum's mission statement is: "to discover, interpret, and disseminate - through scientific research and education - knowledge about human cultures, the natural world, and the universe."
Wwf's mission is to conserve nature and reduce the most pressing threats to the diversity of life on earth. (continued on schedule o)
Susan g. komen 's mission is to save lives by meeting the most critical needs in our communities & investing in breakthrough research to prevent & cure breast cancer.
For more than 125 years, the mission of the johns hopkins hospital has been to lead the world in the diagnosis and treatment of disease and to train tomorrow's great physicians, nurses and scientists. above all, we aim to provide the…
Our mission is to break down barriers to als research to find effective treatments. by uniting academia, the pharma and biotech industry, government, venture capital, related nonprofits, and the als community, we aim to overcome the…
The mission of dfci is to provide expert, compassionate, and equitable care to children, adults, and their families, while advancing the understanding, diagnosis, treatment, cure, and prevention of cancer and related diseases. we train new…
Susan g. komen has an unmatched, comprehensive 360-degree approach to fighting breast cancer across all fronts and supporting millions of people in the u.s. and in countries worldwide. we advocate for policies to protect patients, drive…
The mission of lowell observatory is to pursue the study of astronomy, especially the study of our solar system and its evolution; to conduct pure research in astronomical phenomena; and to maintain quality public education and outreach…
(msh) saves lives and improves the health of the world's poorest (see schedule o) and most vulnerable people by closing the gap between knowledge and action in public health.
For reference, the grantee most central to the portfolio’s shape is The Heritage Foundation and the most unlike its peers is The Suzanne Grant Foundation. 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 35 years old; the field is 18. You back the established end — and your money leans older still.
The field is 19% startups (under 5 years old) — 3% of your grantees by number, and just 0% of your money.
The orgs you fund almost never close — 0.0% lost their exemption, against 10% 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.
36 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. 36 of the 72 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 Global Health Council ↗
- Who funds WHYHUNGER INC ↗
- Who funds NORTHERN WESTCHESTER HOSPITAL ASSOCIATION ↗
- Who funds WESTMORELAND SANCTUARY INC ↗
- Who funds THE MOUNT KISCO INTERFAITH FOOD PANTRY INC ↗
- Who funds FEEDING WESTCHESTER INC ↗
- Who funds STEPHEN SILLER TUNNEL TO TOWERS FOUNDATION ↗
- Who funds EMERGENCY SHELTER PARTNERSHIP ↗
- Who funds ALL FAITHS FOOD BANK INC ↗
- Who funds Marsh Sanctuary Inc ↗
- Who funds COMMUNITY CENTER OF NORTHERN WESTCHESTER INC ↗
- Who funds CARITAS OF PORT CHESTER INC ↗
- Who funds MOTE MARINE LABORATORY INC ↗
- Who funds NORTH EAST WESTCHESTER SPECIAL RECREATION INC ↗
- Who funds BEDFORD 2030 INC ↗
- Who funds Congressional Medal of Honor Society of the United States of America ↗
- Who funds WOMEN'S LEAGUE COMMUNITY RESIDENCES ↗
- Who funds TRICKLE UP PROGRAM INC ↗
- Who funds New York University ↗
- Who funds THE HERITAGE FOUNDATION ↗
- Who funds CENTER FOR DISASTER PHILANTHROPY INC ↗
- Who funds POST-MORROW FOUNDATION 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 Sigmund Cohn Family Foundation Inc · The Braewold Fund · The Lazard Charitable Foundation · Lanbro Foundation · Jandon Foundation · Louis and Anne Abrons Foundation Inc · Peckham Family Foundation · The New York Community Trust · Jewish Communal Fund · National Philanthropic Trust · Ge Aerospace Foundation · Jpmorgan Chase Foundation
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 Tarnok Family Foundation Inc 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.
- Morgan Memorial Goodwill Industries Inc — 17% of income from government
- Mote Marine Laboratory Inc — 4% of income from government
- All Faiths Food Bank Inc — 1% 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 The Tarnok Family Foundation Inc?
Find your warmest path to The Tarnok Family Foundation Inc 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.