· Private foundation
Arnsten Foundation Inc
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 $10k10 grants · $19k
- $10k–50k1 grant · $14k
- $250k+1 grant · $760k
| Recipient | Amount |
|---|---|
| MONTEFIORE MEDICAL CENTER | $760,000 |
| CONGREGATION RODEPH SHOLOM | $14,475 |
| THE METROPOLITAN OPERA | $5,500 |
| UJA FOUNDATION | $5,000 |
| LINCOLN CENTER THEATRE | $2,500 |
| ANTI DEFAMATION LEAGUE | $1,000 |
| UNITED STATES HOLOCAUST MEMORIAL MUSEUM | $1,000 |
| NYU LANGONE HEALTH | $1,000 |
| AMERICAN COMMITTEE FOR THE WEITZMAN INSTITUTE OF SCIENCE | $1,000 |
| JEWISH NATIONAL FUND | $1,000 |
| FRIENDS OF YAD SARAH | $500 |
| THE JEWISH MUSEUM | $500 |
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 (FY17–17, $1k) land where the poverty rate runs at 7%, against an area that typically sits at 13%. 0% of those dollars go to grantees based in above-average-need neighborhoods. Your grants skew toward lower-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 +36% since the first grant, against +31% for the ones you funded once.
20 repeat relationships — 10 still active in FY2025, 10 since wound down; 1 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, 99% of grant dollars renewed an existing relationship; $5k 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
- MMMONTEFIORE MEDICAL CENTER3× · 2023–2025 · $773k · revenue +17%
- UHUNITY HOUSE OF CAYUGA COUNTY INC5× · 2020–2024 · $15k · revenue +30%
- UJUNITED JEWISH APPEAL-FEDERATION OF JEWISH PHILANTHROPIES OF NEW YORK INC5× · 2019–2023 · $11k · revenue +27%
Funded once
- MHMONTEFIORE HOSPITALone grant, 2017 · $225k
- LCLINCOLN CENTER FOR THE PERFORMING ARTS INCone grant, 2023 · $3k · revenue 0%
- CUCOLGATE UNIVERSITYgraduatedone grant, 2019 · $3k · revenue +44%
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 institute for advanced study (the institute) is one of the world's leading centers for theoretical research and intellectual inquiry. see schedule o.
For over 150 years, the 92nd street y, new york has been serving its communities and the larger world by bringing people together (continued on schedule o)and providing exceptional, groundbreaking programs in the performing and visual…
The weitzman national museum of american jewish history, on independence mall in philadelphia, presents educational programs and experiences that preserve, explore, and celebrate the history of jews in america. its purpose is to connect…
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."
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 university is composed of several colleges and schools providing undergraduate, graduate, professional and post-doctoral education and training and research and clinical programs.
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…
Biu produces students who excel in the sciences, humanities, law, engineering, business & the arts.
The contemporary jewish museum (the cjm) makes the diversity of the jewish experience relevant for a twenty-first-century audience through innovative exhibitions and programs that educate, challenge, and inspire.
The national september 11 memorial & museum at the world trade center bears solemn witness to the terrorist attacks of september 11, 2001, and february 26, 1993. located at a site made sacred through loss, the memorial & museum remembers…
The museum of jewish heritage - a living memorial to the holocaust is new york's contribution to the global responsibility to never forget. see schedule o for additional information.
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.
For reference, the grantee most central to the portfolio’s shape is The Jewish Museum and the most unlike its peers is Roundabout Theatre Company Inc. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
Your grantees are a median of 64 years old; the field is 18. You back the established end — and your money leans older still.
The field is 18% startups (under 5 years old) — 0% of your grantees by number, and just 0% of your money.
The orgs you fund almost never close — 4% 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.
22 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. 22 of the 38 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 MONTEFIORE MEDICAL CENTER ↗
- Who funds UNITY HOUSE OF CAYUGA COUNTY INC ↗
- Who funds UNITED JEWISH APPEAL-FEDERATION OF JEWISH PHILANTHROPIES OF NEW YORK INC ↗
- Who funds FRIENDS OF RODEPH SHOLOM SCHOOL INC ↗
- Who funds ROUNDABOUT THEATRE COMPANY INC ↗
- Who funds AMERICAN COMMITTEE FOR THE WEIZMANN INSTITUTE OF SCIENCE INC ↗
- Who funds The United States Holocaust Memorial Museum ↗
- Who funds FRIENDS OF YAD SARAH INC ↗
- Who funds THE JEWISH MUSEUM ↗
- Who funds JEWISH NATIONAL FUND (KEREN KAYEMETH LEISRAEL) INC ↗
- Who funds LINCOLN CENTER FOR THE PERFORMING ARTS INC ↗
- Who funds COLGATE UNIVERSITY ↗
- Who funds NEW YORK CITY CENTER INC ↗
- Who funds ANTI-DEFAMATION LEAGUE ↗
- Who funds New York Historical Society ↗
- Who funds METROPOLITAN MUSEUM OF ART ↗
- Who funds Friends of Yad LKashishLifeline for the Old ↗
- Who funds LITERACY INC ↗
- Who funds THE CARNEGIE HALL CORPORATION ↗
- Who funds BARNARD COLLEGE ↗
- Who funds THE PHILHARMONIC SYMPHONY SOCIETY OF NY INC ↗
- Who funds The Carnegie Hall Society 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: Jewish Communal Fund · American Endowment Foundation · National Philanthropic Trust · Vanguard Charitable Endowment Program · American Online Giving Foundation Inc · Donor Advised Charitable Giving 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 Arnsten 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 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 Arnsten Foundation Inc?
Find your warmest path to Arnsten 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.