· Private foundation
The Rosenthal Fund
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 $10k33 grants · $35k
- $10k–50k1 grant · $10k
- $50k–250k2 grants · $100k
- $250k+2 grants · $1.0M
| Recipient | Amount |
|---|---|
| BROWN UNIVERSTIY | $645,000 |
| CARNEGIE HALL CO | $400,000 |
| ORCHESTRA OF ST LUKES | $50,000 |
| ORCHESTRA OF ST LUKES | $50,000 |
| BEST FRIENDS ANIMAL SOCIETY | $10,000 |
| NEW YORK HISTORICAL SOCIETY MUSEUM & LIBRARY | $6,000 |
| BEST FRIENDS ANIMAL SOCIETY | $5,000 |
| CARNEGIE HALL CO | $5,000 |
| 5 CORNERS COLLECTIVE INC | $2,500 |
| CONGREGATION EMANU-EL OF THE CITY OF NEW YORK | $2,150 |
| SAINT ANN'S SCHOOL | $2,000 |
| PECONIC LAND TRUST | $1,430 |
| HOSPITAL FOR SPECIAL SURGERY | $1,000 |
| NEUE GALLLERIE NEW YORK | $1,000 |
| UNIVERSITY OF CHICAGO | $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 (FY17–24, $5k) land where the poverty rate runs at 16%, against an area that typically sits at 10%. 87% 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 +25% since the first grant, against +19% for the ones you funded once.
53 repeat relationships — 23 still active in FY2025, 30 since wound down; 11 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, 100% of grant dollars renewed an existing relationship; $4k 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 INC9× · 2017–2025 · $487k · revenue +69%
- SASAINT ANN'S SCHOOL5× · 2020–2025 · $193k · revenue +20%
- JSJUILLIARD SCHOOL2× · 2018–2020 · $145k · revenue +58%
Funded once
MEMORIAL SLOAN-KETTERING CANCER CENTERgraduatedone grant, 2019 · $10k · revenue +82%- NLNYU LANGONE HEALTH SYSTEMgraduatedone grant, 2017 · $5k · revenue +94%
- TCTHE CHINATI FOUNDATIONgraduatedone grant, 2018 · $5k · revenue +74%
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.
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."
The museum of the city of new york fosters understanding of the distinctive nature of urban life in the world's most influential metropolis. it engages visitors by celebrating, documenting, and interpreting the city's past, present, and…
The institute for advanced study (the institute) is one of the world's leading centers for theoretical research and intellectual inquiry. see schedule o.
The mission of the jewish museum is to collect, preserve, exhibit and interpret art and jewish culture. see schedule o for more information.
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.
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 new york botanical garden is a museum of plants and a scientific research center devoted to the study of plants and their uses. it is the garden's mission to improve public understanding of the natural world, horticulture, and the…
The mission of the brooklyn institute of arts and sciences, d/b/a brooklyn museum (the "museum") is to bring people together through art and experiences that inspire celebration, compassion, courage, and the will to act. (see schedule o).
The graduate center foundation is committed to promoting and safe-guarding the success of the graduate center by raising funds and managing and investing donations for use by the graduate center. the board of trustees of the foundation…
Manhattan school of music is deeply committed to excellence in education, performance, and creative activity; to the humanity of the school's environment; and to the cultural enrichment of the larger community. a premiere international…
Bard college seeks to provide a challenging academic program and a supportive environment that fosters a collaborative interchange of ideas in the classroom as well as ambition to achieve excellence.
The municipal art society of new york (mas) lifts up the voices of the people in the debates that shape new york's built environment and leads the way to a more livable city from sidewalk to skyline. mas envisions a future in which all new…
For reference, the grantee most central to the portfolio’s shape is Henry Street Settlement and the most unlike its peers is The Neue Galerie New York. 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 39 years old; the field is 19. You back the established end — and your money leans older still.
The field is 19% startups (under 5 years old) — 0% of your grantees by number, and just 0% of your money.
The orgs you fund almost never close — 1.0% 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.
97 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. 97 of the 124 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 THE CARNEGIE HALL CORPORATION ↗
- Who funds BROWN UNIVERSITY ↗
- Who funds ST LUKES CHAMBER ENSEMBLE INC ↗
- Who funds The Carnegie Hall Society Inc ↗
- Who funds SAINT ANN'S SCHOOL ↗
- Who funds JUILLIARD SCHOOL ↗
- Who funds BEST FRIENDS ANIMAL SOCIETY ↗
- Who funds BRIDGEHAMPTON CHAMBER MUSIC ASSOCIATES INC ↗
- Who funds METROPOLITAN MUSEUM OF ART ↗
- Who funds THE BREARLEY SCHOOL ↗
- Who funds MEMORIAL SLOAN-KETTERING CANCER CENTER ↗
- Who funds CHARLEY'S FUND INC ↗
- Who funds THE NEUE GALERIE NEW YORK ↗
- Who funds THE ROUND TABLE OF CULTURAL SEMINARS LTD ↗
- Who funds NYU LANGONE HEALTH SYSTEM ↗
- Who funds THE CHINATI FOUNDATION ↗
- Who funds WNET ↗
- Who funds NEW YORK PUBLIC RADIO ↗
- Who funds Upper East Side Hatzolah Inc ↗
- Who funds MIGHTY MUTTS INC ↗
- Who funds THE YOUNG MEN'S AND YOUNG WOMEN'S HEBREW ASSOCIATION ↗
- Who funds THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK ↗
- Who funds CITYMEALS-ON-WHEELS ↗
- Who funds The Frick Collection ↗
- Who funds FILM FORUM INC ↗
- Who funds WORLD WILDLIFE FUND INC ↗
- Who funds Wildlife Conservation Society ↗
- Who funds NATIONAL THEATRE IN AMERICA INC ↗
- Who funds NATIONAL WILDLIFE FEDERATION ↗
- Who funds WILLIAM J BRENNAN CENTER FOR JUSTICE INC ↗
- Who funds ALZHEIMER'S DRUG DISCOVERY FOUNDATION ↗
- Who funds THE HUMANE SOCIETY OF NEW YORK ↗
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: Jewish Communal Fund · The New York Community Trust · The Goldman Sachs Charitable Gift Fund · Corner Foundation Inc · Daniel M Neidich & Brooke Garber Foundation · The Jm Kaplan Fund Inc · The Hyde and Watson Foundation · The Reba Judith Sandler Foundation Inc · Brownstone Family Foundation · Brooklyn Community Foundation · The Ayco Charitable Foundation · The Robert Wood Johnson 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 Rosenthal 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.
- Connecticut Public Broadcasting Inc — 3% of income from government
- Wounded Warrior Project 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 The Rosenthal Fund?
Find your warmest path to The Rosenthal 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.