· Private foundation
Janet Prindle Seidler Foundation Dated
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 $10k4 grants · $16k
- $10k–50k9 grants · $285k
- $50k–250k1 grant · $60k
| Recipient | Amount |
|---|---|
| ST LUKES CHAMBER ENSEMBLE INC | $60,000 |
| ALZHEIMERS DRUG DISCOVERY FOUNDATION | $40,000 |
| ALZHEIMERS DISEASE RESEARCH FOUNDATION | $40,000 |
| MS FOUNDATION | $40,000 |
| STAMFORD HOSPITAL | $40,000 |
| NEW YORK WOMENS FOUNDATION | $40,000 |
| CARNEGIE HALL SOCIETY INC | $30,000 |
| ST MARYS EPISCOPAL CHURCH | $25,000 |
| MOUNT SINAI PARENTING CENTER | $20,000 |
| ATLANTIC CLASSICAL ORCHESTRA FUND | $10,000 |
| MONTANA DE LUZ | $5,000 |
| DARIEN YMCA | $5,000 |
| ST JUDE CHILDRENS RESEARCH HOSPITAL | $5,000 |
| DARIEN LIBRARY | $1,000 |
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 (FY24–25, $90k) land where the poverty rate runs at 16%, against an area that typically sits at 11%. 89% 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.
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 +7% since the first grant, against +4% for the ones you funded once.
13 repeat relationships — 12 still active in FY2025, 1 since wound down; 2 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, 83% of grant dollars renewed an existing relationship; $60k 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
- SLST LUKES CHAMBER ENSEMBLE INC2× · 2024–2025 · $120k · revenue +45%
- ADALZHEIMER'S DISEASE RESEARCH FOUNDATION2× · 2024–2025 · $80k · revenue +78%
- DCDARIEN COMMUNITY YOUNG MEN'S CHRISTIAN ASSOCIATION INC2× · 2024–2025 · $10k · revenue +8%
Funded once
- MMMETROPOLITAN MUSEUM OF ARTgraduatedone grant, 2024 · $25k · revenue +30%
- MSMOUNT SINAI PARENT CENTERone grant, 2024 · $20k
- TRTHE ROCKEFELLER UNIVERSITYone grant, 2024 · $10k · revenue -8%
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.
Nyu is a private university with approximately 60,000 matriculating students in 20 schools and institutes. nyu's primary missions are education, research and scholarship, and patient care.
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."
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.
The mission of the institute is to translate basic genetic and molecular mechanisms of schizophrenia and related developmental brain disorders into clinical advances that change the lives of affected individuals. it is catalyzing a new…
See Form 990, Part I, Line 1, Description of Organization Mission.
The Morgan Library & Museum celebrates and shares the history and process of human creativity from antiquity to the present day through the preservation, study, and interpretation of a dynamic and growing collection.
The mission of the new york public library is to inspire lifelong learning, advance knowledge, and strengthen our communities.
Dartmouth College educates the most promising students and prepares them for a lifetime of learning and of responsible leadership, through a faculty dedicated to teaching and the creation of knowledge.
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…
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…
To educate students to be ethical and socially responsible leaders in a global community.
Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.
For reference, the grantee most central to the portfolio’s shape is St Jude Children's Research Hospital Inc and the most unlike its peers is Metropolitan Museum of Art. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
16 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. 16 of the 21 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 ST LUKES CHAMBER ENSEMBLE INC ↗
- Who funds ALZHEIMER'S DRUG DISCOVERY FOUNDATION ↗
- Who funds ALZHEIMER'S DISEASE RESEARCH FOUNDATION ↗
- Who funds NEW YORK WOMEN'S FOUNDATION INC ↗
- Who funds The Carnegie Hall Society Inc ↗
- Who funds The Stamford Hospital ↗
- Who funds METROPOLITAN MUSEUM OF ART ↗
- Who funds ATLANTIC CLASSICAL ORCHESTRA INC ↗
- Who funds DARIEN COMMUNITY YOUNG MEN'S CHRISTIAN ASSOCIATION INC ↗
- Who funds ST JUDE CHILDREN'S RESEARCH HOSPITAL INC ↗
- Who funds THE ROCKEFELLER UNIVERSITY ↗
- Who funds MONTANA DE LUZ ↗
- Who funds SAILFISH POINT FOUNDATION INC ↗
- Who funds DARIEN LIBRARY INC ↗
- Who funds Library Foundation of Martin County ↗
- Who funds BOYS & GIRLS CLUB OF MARTIN COUNTY ↗
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: National Philanthropic Trust · Vanguard Charitable Endowment Program · Fidelity Investments Charitable Gift Fund · Donor Advised Charitable Giving Inc · Amazonsmile 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 Janet Prindle Seidler Foundation Dated 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.
- Boys & Girls Club of Martin County — 2% of income from government
- The Stamford Hospital — 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.