· Private foundation
William Rosenberg Family Foundation Inc
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
- Under $10k13 grants · $40k
- $10k–50k18 grants · $273k
- $50k–250k2 grants · $155k
| Recipient | Amount |
|---|---|
| MCLEAN HOSPITAL | $96,000 |
| Individual grant recipient | $58,778 |
| JAZZ AT ASPEN-SNOWMASS | $40,000 |
| ASPEN COMMUNITY FOUNDATION | $25,000 |
| FIDELITY INVESTMENTS CHARITABLE GIFT FUND | $23,775 |
| CHARITY FOR CHANGE | $18,778 |
| JUPITER MEDICAL CENTER INC | $15,000 |
| LIGHTHOUSE OF COLLIER INC | $15,000 |
| BASCOM PALMER EYE INSTITUTE | $15,000 |
| AMERICAN FRIENDS OF UNITED JEWISH APPEAL OF GREATER TORONTO INC | $15,000 |
| PINBALL ASYLUM INC | $15,000 |
| BETH ISRAEL DEACONESS MEDICAL CENTER INC | $10,000 |
| YALE NEW HAVEN HOSPITAL | $10,000 |
| INSTITUTE FOR COMTEMPORARY ART | $10,000 |
| HOSPITAL FOR SICK CHILDREN FOUNDATION | $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 (FY17–24, $121k) land where the poverty rate runs at 11%, against an area that typically sits at 10%. 81% 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.
72 repeat relationships — 18 still active in FY2024, 54 since wound down; 13 grantees were first funded in FY2024 (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 FY2024, 74% of grant dollars renewed an existing relationship; $111k 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
UNIVERSITY OF NEW HAMPSHIRE FOUNDATION INCORPORATED8× · 2017–2024 · $357k · revenue +35%- ACASPEN CENTER FOR ENVIRONMENTAL STUDIES6× · 2017–2022 · $280k · revenue +120%
- JAJAZZ AT ASPEN-SNOWMASS7× · 2017–2024 · $275k · revenue +212%
Funded once
- WFWR FAMILY FOUNDATION INCone grant, 2023 · $3.1M
- SHSHILOH HORSE RESCUE PDone grant, 2020 · $100k
- TSTHE SHILOH FOUNDATIONone grant, 2017 · $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.
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.
Leadership in the prevention, treatment, and cure of cancer through excellence, vision and cost effectiveness in patient care, outreach programs, research, and education.
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 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 mission of the jewish museum is to collect, preserve, exhibit and interpret art and jewish culture. see schedule o for more information.
Sanford burnham prebys medical discovery institute's mission is to advance the biomedical sciences by cultivating the next generation of scientific leaders, providing meaningful opportunities for researchers of all backgrounds to learn,…
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 MASSACHUSETTS EYE AND EAR INFIRMARY ("THE INFIRMARY") IS A NOT-FOR-PROFIT TEACHING HOSPITAL CONDUCTING PATIENT CARE AND RESEARCH. THE INFIRMARY IS A TEACHING HOSPITAL OF HARVARD MEDICAL SCHOOL AND AN INTERNATIONAL CENTER FOR RESEARCH.…
The bac is committed to provide excellence in design education grounded in practice and accessible to diverse communities.
Committed to exceptional healthcare quality for all and actively engaged with our community, einstein drives scientific discovery and educates compassionate leaders in health and science.
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."
See Form 990, Part I, Line 1, Description of Organization Mission.
For reference, the grantee most central to the portfolio’s shape is Charity for Change Inc and the most unlike its peers is Lois Pope Life Foundation 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 35 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) — 2% of your grantees by number, and just 44% of your money.
The orgs you fund almost never close — 1% 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.
76 grantees tracked through their own filings, 2017–2026.
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 2017–2026, not grant rows in a single year — so this will not match the grant count on the cover. 76 of the 143 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 WR FAMILY FOUNDATION INC ↗
- Who funds UNIVERSITY OF NEW HAMPSHIRE FOUNDATION INCORPORATED ↗
- Who funds Combined Jewish Philanthropies of Greater Boston Inc ↗
- Who funds ASPEN CENTER FOR ENVIRONMENTAL STUDIES ↗
- Who funds JAZZ AT ASPEN-SNOWMASS ↗
- Who funds CHARITY FOR CHANGE INC ↗
- Who funds TRACYS KIDS INC ↗
- Who funds ABLE ACADEMY INC ↗
- Who funds ASPEN COMMUNITY FOUNDATION ↗
- Who funds THE CHESHIRE ACADEMY ↗
- Who funds LIGHTHOUSE OF COLLIER INC ↗
- Who funds HUNTINGTON THEATRE CO INC ↗
- Who funds JORGE M PEREZ ART MUSEUM OF MIAMI-DADE COUNTY INC ↗
- Who funds NATIONAL JEWISH HEALTH ↗
- Who funds MOUNT SINAI MEDICAL CENTER FOUNDATION ↗
- Who funds Dana-Farber Cancer Institute Inc ↗
- Who funds TABOR ACADEMY ↗
- Who funds THE DAN MARINO FOUNDATION INC ↗
- Who funds IFA FOUNDATION ↗
- Who funds Peggy Adams Animal Rescue League of the Palm Beaches Inc ↗
- Who funds ANTI-DEFAMATION LEAGUE ↗
- Who funds FIDELITY INVESTMENTS CHARITABLE GIFT FUND ↗
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: Aspen Community Foundation · Rose Community Foundation · Jewish Federation of Metropolitan Chicago · Alpenglow Foundation · The Magnolia Charitable Foundation · Jewish Communal Fund · Boston Foundation Inc · Gs Donor Advised Philanthropy Fund for Wealth Management Inc · Cummings Foundation Grants Inc (Fka Oneworld Boston Inc) · Combined Jewish Philanthropies of Greater Boston Inc · The Chicago Community Trust · Bny Mellon Charitable Gift Fund
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 William Rosenberg 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, a single department, or state — and drag the year to watch it move.
- Hias Inc — 88% of income from government
- Missionsafe a New Beginning Inc — 38% of income from government
- Association for Autism and Neurodiversity Inc — 24% of income from government
- Dana-Farber Cancer Institute Inc — 7% of income from government
- Beth Israel Deaconess Medical Center Inc — 6% of income from government
- Huntington Theatre Co Inc — 4% of income from government
- Jespy House Inc — 2% of income from government
- Jupiter Medical Center Inc — 2% of income from government
- The Trustees of the Smith College — 1% of income from government
- The Institute of Contemporary Art Inc — 1% of income from government
- Yale New Haven Hospital — 0% of income from government
- New World Symphony Inc — 0% of income from government
- Animal Rescue League of Boston — 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 William Rosenberg Family Foundation Inc?
Find your warmest path to William Rosenberg 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.