· Private foundation
The Marion & Robert Rosenthal Family Foundation
Its FY2024 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 clustered by its grantee’s IRS cause code (NTEE), by year — across FY2017–2024.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2024
- $10k–50k5 grants · $135k
- $50k–250k2 grants · $225k
| Recipient | Amount |
|---|---|
| EGAN MARITIME INSTITUTE | $125,000 |
| JOHN HOPKINS WILMER EYE INSTITUTE | $100,000 |
| RANCHO MIRAGE WRITER'S FESTIVAL | $35,000 |
| NATIONAL GALLERY OF ART | $25,000 |
| MCCALLUM THEATRE | $25,000 |
| THE WASHINGTON BALLET | $25,000 |
| UNITED STATES HOLOCAUST MEMORIAL | $25,000 |
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 (FY20–20, $3k) land where the poverty rate runs at 14%, against an area that typically sits at 10%. 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.
23 repeat relationships — 7 still active in FY2024, 16 since wound down.
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 FY2024, 100% of grant dollars renewed an existing relationship; $0 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
- NGNational Gallery of Art7× · 2017–2024 · $675k · revenue +29%
- TATHE ALBERT F EGAN JR & DOROTHY H EGAN F5× · 2019–2024 · $315k · revenue +38%
- TWTHE WASHINGTON BALLET8× · 2017–2024 · $275k · revenue +46%
Funded once
- KCKENNEDY CENTER OF PERFORMING ARTSone grant, 2017 · $250k
- TUTemple University - Of The Commonwealth System of Higher Educationone grant, 2017 · $200k · revenue +5%
- JHJOHNS HOPKINS WILMER EYE INSTITUTEone grant, 2021 · $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.
The University of New Haven is a student-centered comprehensive university with an emphasis on excellence in liberal arts and professional education. Our mission is to prepare our students to lead purposeful and fulfilling lives in a…
Provide an independent forum for those who dare to read, think, speak, and write to advance the professional, literary, and scientific understanding of sea power and other issues critical to global security.
To inform and enrich the intellectual lives of 20,000 alumni of harvard university in the washington, dc area and to assist harvard university with respect to applicants and undergraduates from the dc area.
The mission of the george washington university (gw) is to educate individuals in liberal arts, languages, sciences, learned professions, and other courses and subjects of study, and to conduct scholarly research and publish the findings…
The bac is committed to provide excellence in design education grounded in practice and accessible to diverse communities.
National public radio, inc. ("npr") works collaboratively with member public radio station licensees ("member stations") to create a more informed public, one that is challenged and invigorated by a deeper understanding and appreciation of…
Northeast college of health sciences (the college) is committed to academic excellence, leadership, and professional best practices in the health sciences.
The npr foundation ("foundation") is organized and operated exclusively for the benefit of its sole supported organization, national public radio, inc. ("npr inc."). the foundation supports npr inc. through various activities such as…
To facilitate harvard university's scientific, literary, and educational activities in washington, dc.
Research, education and general - princeton university is a private not-for-profit, non-sectarian institution of higher learning with approximately 5,700 undergraduate and 3,300 graduate students. 2,500 students graduated in the 2024-2025…
The mission of mit is to advance knowledge and educate students in science, technology, and other areas of scholarship that will best serve the nation and the world in the 21st century.
The fsmb serves as the voice for state medical boards, supporting them through education, assessment, research and advocacy while providing services and initiatives that promote patient safety, quality health care and regulatory best…
For reference, the grantee most central to the portfolio’s shape is Children's Hospital Foundation and the most unlike its peers is Foxhall 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 38 years old; the field is 18. You back the established end — and your money leans older still.
The field is 20% startups (under 5 years old) — 7% of your grantees by number, and just 19% of your money.
The orgs you fund almost never close — 2% lost their exemption, against 12% 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.
43 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. 43 of the 71 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 National Gallery of Art ↗
- Who funds THE KENNEDY-WARREN RESIDENTS ASSOCIATION INC ↗
- Who funds THE ALBERT F EGAN JR & DOROTHY H EGAN F ↗
- Who funds THE WASHINGTON BALLET ↗
- Who funds USAGAINSTALZHEIMER'S ↗
- Who funds Temple University - Of The Commonwealth System of Higher Education ↗
- Who funds SIBLEY MEMORIAL HOSPITAL FOUNDATION ↗
- Who funds Eisenhower Medical Center ↗
- Who funds NEW YORK WOMEN IN FILM & TELEVISION INC ↗
- Who funds SMITHSONIAN INSTITUTION ↗
- Who funds PALM SPRINGS ART MUSEUM ↗
- Who funds The United States Holocaust Memorial Museum ↗
- Who funds JOHNS HOPKINS UNIVERSITY ↗
- Who funds RANCHO MIRAGE WRITERS FESTIVAL ↗
- Who funds Foxhall Foundation ↗
- Who funds OUR HOUSE NANTUCKET INC ↗
- Who funds THE HOLTON ARMS SCHOOL ↗
- Who funds CHILDREN'S HOSPITAL FOUNDATION ↗
- Who funds COMMUNITY OF HOPE ↗
- Who funds THE PHILLIPS COLLECTION ↗
- Who funds LUNGEVITY FOUNDATION INC ↗
- Who funds BEST FRIENDS FOUNDATION ↗
- Who funds MAYO CLINIC ↗
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 Van Metre Family Foundation Inc · Community Foundation for Nantucket Inc · Gs Donor Advised Philanthropy Fund for Wealth Management Inc · Greater Washington Community Foundation · The Ayco Charitable Foundation · Morgan Stanley Global Impact Funding Trust Inc · Silicon Valley Community Foundation · Vanguard Charitable Endowment Program · National Philanthropic Trust · American Endowment Foundation · Donor Advised Charitable Giving Inc · American Online Giving Foundation Inc
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 Marion & Robert Rosenthal Family 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.
- Johns Hopkins University — 12% of income from government
- Nantucket Historical Association — 1% of income from government
- Hebrew Home of Greater Washington 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 Marion & Robert Rosenthal Family Foundation?
Find your warmest path to The Marion & Robert Rosenthal Family 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.