· Private foundation
The SPMG Rothenberg Foundation
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 FY2021–2025.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2025
- Under $10k5 grants · $14k
- $10k–50k7 grants · $128k
- $50k–250k2 grants · $115k
| Recipient | Amount |
|---|---|
| Mount Sinai Children's Center Foundation | $65,000 |
| New York University | $50,000 |
| Icahn School of Medicine at Mount Sinai | $30,000 |
| The Chapin School | $25,000 |
| Alzheimer's Association | $18,000 |
| Play for PINK Inc | $15,000 |
| Mount Sinai Medical Center Foundation | $15,000 |
| Child Mind Institute Inc | $15,000 |
| Crohn's & Colitis Foundation | $10,000 |
| Oxalosis & Hyperoxaluria Foundation | $5,000 |
| Food Allergy Fund | $5,000 |
| Creative Time | $2,500 |
| Eagles Autism Challenge Inc | $1,000 |
| Marjory Stoneman Douglas Ptso | $50 |
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 (FY24–24, $30k) land where the poverty rate runs at 17%, against an area that typically sits at 13%. 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.
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 +5% since the first grant, against 0% for the ones you funded once.
9 repeat relationships — 8 still active in FY2025, 1 since wound down; 6 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, 61% of grant dollars renewed an existing relationship; $101k 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
- TCTHE CHAPIN SCHOOL LTD4× · 2022–2025 · $100k · revenue +8%
- MSMOUNT SINAI MEDICAL CENTER FOUNDATION4× · 2022–2025 · $90k · revenue +60%
- CMCHILD MIND INSTITUTE INC3× · 2022–2025 · $45k · revenue +23%
Funded once
- MSMt Sinai Children's Center Foundationone grant, 2023 · $100k
- NLNYU LANGONE HEALTH SYSTEMone grant, 2024 · $50k · revenue 0%
- MSMOUNT SINAI HEALTH SYSTEM INCone grant, 2024 · $30k · 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.
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,…
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.
Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.
Mount sinai is committed to the advancement of the art and science of medicine through clinical excellence. the central mission consists of high-quality patient care and teaching conducted in an atmosphere of social concern and scholarly…
Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.
Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.
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.
Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.
Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.
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.
Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.
The corporation is organized and is operated exclusively for charitable, educational and scientific purposes. all children's research institute supports, encourages, and engages in and conducts medical research and other research in…
For reference, the grantee most central to the portfolio’s shape is Icahn School of Medicine At Mount Sinai and the most unlike its peers is New York University. 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 33 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) — 0% 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.
27 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. 27 of the 30 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 TRUSTEES OF THE UNIVERSITY OF PENNSYLVANIA ↗
- Who funds THE MOUNT SINAI CHILDREN'S CENTER FOUNDATION INC ↗
- Who funds THE CHAPIN SCHOOL LTD ↗
- Who funds MOUNT SINAI MEDICAL CENTER FOUNDATION ↗
- Who funds New York University ↗
- Who funds NYU LANGONE HEALTH SYSTEM ↗
- Who funds CHILD MIND INSTITUTE INC ↗
- Who funds ALZHEIMER'S DISEASE & RELATED DISORDERS ASSOCIATION INC ↗
- Who funds CROHN'S & COLITIS FOUNDATION INC ↗
- Who funds MOUNT SINAI HEALTH SYSTEM INC ↗
- Who funds ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI ↗
- Who funds PLAY FOR PINK INC ↗
- Who funds The Oxalosis & Hyperoxaluria Foundation ↗
- Who funds AMERICAN FRIENDS OF SHEBA MEDICAL CENTER INC ↗
- Who funds PARKINSON'S FOUNDATION INC ↗
- Who funds THE BREAST CANCER RESEARCH FOUNDATION INC ↗
- Who funds FOOD ALLERGY FUND ↗
- Who funds CREATIVE TIME INC ↗
- Who funds PIONEER WORKS ART FOUNDATION ↗
- Who funds BLOOD CANCER UNITED INC ↗
- Who funds UNITED JEWISH APPEAL-FEDERATION OF JEWISH PHILANTHROPIES OF NEW YORK INC ↗
- Who funds Christodora Inc ↗
- Who funds CIVIC BUILDERS INC ↗
- Who funds WORTHLESS FOUNDATION INC ↗
- Who funds EAGLES AUTISM CHALLENGE INC ↗
- Who funds AMYOTROPHIC LATERAL SCLEROSIS ASSN ↗
- Who funds MARJORY STONEMAN DOUGLAS PTSO 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 Goldman Sachs Charitable Gift Fund · National Philanthropic Trust · Donor Advised Charitable Giving Inc · American Online Giving Foundation Inc · Fidelity Investments Charitable Gift Fund · 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 The SPMG Rothenberg 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 or a single department — and drag the year to watch it move.
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 SPMG Rothenberg Foundation?
Find your warmest path to The SPMG Rothenberg 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.