· Private foundation
Sally & Irwin B Nathanson Foundation
Its FY2022 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.
Read this first · the figures below need context
88% of Sally & Irwin B Nathanson Foundation’s FY2022 grant dollars went to Fidelity Investments Charitable Gift Fund, not to grantees.
Its money now reaches organizations through that sponsor, which does not report who recommended each grant. FY2022 names 7 organizations directly, so a portfolio cannot be read from it. Everything below is therefore FY2021, the last year Sally & Irwin B Nathanson Foundation named its own grantees at scale: 8 organizations, $117k. It is dated, not current.
Organizations named directly on the return
Amber years are those where most dollars went to a sponsor.
What you funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year — across FY2017–2022.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2021
- Under $10k8 grants · $7k
- $10k–50k2 grants · $60k
- $50k–250k1 grant · $50k
| Recipient | Amount |
|---|---|
| PALM BEACH DRAMAWORKS | $50,000 |
| ANTI DEFAMATION LEAGUE | $35,000 |
| PLANNED PARENTHOOD | $25,000 |
| DOCTORS WITHOUT BORDERS | $2,000 |
| JEWISH FEDERATION OF PALM BEACH COUNTY | $2,000 |
| AMERICAN CIVIL LIBERITIES UNION | $1,500 |
| FLORIDA ATLANTIC UNIVERSITY FOUNDATION INC | $1,000 |
| ALZHEIMERS ASSOCIATION | $500 |
| INSIGHT THROUGH EDUCATION | $290 |
| WESTERN WEST VIRGINIA ANIMAL RESCUE ALLIANCE | $100 |
| TUSKEGEE AIRMAN NATIONAL MUSEUM | $80 |
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 (FY17–20, $1k) land where the poverty rate runs at 10%, against an area that typically sits at 11%. 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.
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 +76% since the first grant, against +53% for the ones you funded once.
19 repeat relationships — 8 still active in FY2021, 11 since wound down; 10 grantees were first funded in FY2021 (too recent to call). Read against FY2021, the last year this funder named its own grantees directly; its giving has since run through a sponsor, which reports no donor behind each grant.
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 FY2022, 13% of grant dollars renewed an existing relationship; $445k 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
- PBPALM BEACH DRAMAWORKS INC4× · 2017–2021 · $230k · revenue +92%
- ALANTI-DEFAMATION LEAGUE4× · 2017–2021 · $68k · revenue +78%
- BCBALLENISLES CHARITIES FOUNDATION INC4× · 2017–2022 · $33k · revenue +76%
Funded once
- IRInternational Rescue Committee INCgraduatedone grant, 2019 · $2k · revenue +67%
- NYNew York Universitygraduatedone grant, 2017 · $1k · revenue +76%
- ACAMERICAN CANCER SOCIETY INCone grant, 2019 · $250 · revenue -81%
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 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…
Aacsb international provides quality assurance of business school programs, the latest in business education intelligence, thought leadership, and learning and development services.
The bac is committed to provide excellence in design education grounded in practice and accessible to diverse communities.
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…
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.
Undergraduate, graduate, and professional education and research across a broad array of academic domains.
Advance science, engineering, and innovation throughout the world for the benefit of all. the world's largest multidisciplinary scientific society and a leading publisher of cutting-edge research through its science family of journals,…
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…
The primary mission of furman as a liberal arts institution is to provide a distinctive education in fine arts, humanities, social sciences, mathematics and the sciences, as well as selected professional disciplines.
To educate students to be ethical and socially responsible leaders in a global community.
American foreign service association (afsa) is both the principal advocate for the long-term institutional wellbeing of the professional career foreign service and responsible for safeguarding the interest of afsa members. (continued on…
To bring quality public television programs and resources to communities throughout new jersey and its tri-state neighbors. its content, both on-air and online, aims to reflect the diverse
For reference, the grantee most central to the portfolio’s shape is Jewish Federation of Palm Beach County Inc and the most unlike its peers is The Nathanson Family 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 19. You back the established end — and your money leans older still.
The field is 18% startups (under 5 years old) — 6% of your grantees by number, and just 8% of your money.
The orgs you fund almost never close — 0.0% lost their exemption, against 11% 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.
39 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. 39 of the 49 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 FIDELITY INVESTMENTS CHARITABLE GIFT FUND ↗
- Who funds THE NATHANSON FAMILY FOUNDATION ↗
- Who funds PALM BEACH DRAMAWORKS INC ↗
- Who funds ANTI-DEFAMATION LEAGUE ↗
- Who funds BALLENISLES CHARITIES FOUNDATION INC ↗
- Who funds JEWISH FEDERATION OF PALM BEACH COUNTY INC ↗
- Who funds FLORIDA ATLANTIC UNIVERSITY FOUNDATION INC ↗
- Who funds ETHICAL CULTURE FIELDSTON SCHOOL ↗
- Who funds MEDECINS SANS FRONTIERES USA INC ↗
- Who funds ALZHEIMER'S DISEASE & RELATED DISORDERS ASSOCIATION INC ↗
- Who funds Wellesley College ↗
- Who funds International Rescue Committee INC ↗
- Who funds SARAH LAWRENCE COLLEGE ↗
- Who funds AMNESTY INTERNATIONAL OF THE USA INC ↗
- Who funds New York University ↗
- Who funds HARRISON CHILDREN'S CENTER INC ↗
- Who funds THE BRAIN ANEURYSM FOUNDATION INC ↗
- Who funds METROPOLITAN MUSEUM OF ART ↗
- Who funds INSIGHT THROUGH EDUCATION INC ↗
- Who funds JBI INTERNATIONAL INC ↗
- Who funds AMERICAN CANCER SOCIETY INC ↗
- Who funds PLACE OF HOPE INC ↗
- Who funds SOUTH FLORIDA PUBLIC MEDIA GROUP INC ↗
- Who funds ST JUDE CHILDREN'S RESEARCH HOSPITAL INC ↗
- Who funds LEAGUE OF WOMEN VOTERS EDUCATION FUND ↗
- Who funds NATIONAL ORGANIZATION FOR WOMEN INC ↗
- Who funds Feeding America ↗
- Who funds WESTERN WEST VIRGINIA ANIMAL RESCUE ALLIANCE INC ↗
- Who funds United States Association for UNHCR ↗
- Who funds SOUTH FLORIDA PBS INC ↗
- Who funds SWARTHMORE COLLEGE ↗
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: National Philanthropic Trust · 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 Sally & Irwin B Nathanson 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.
- Florida Sheriffs Association Inc — 4% of income from government
- Wellesley College — 1% of income from government
- Greenwich Hospital — 0% of income from government
- Place of Hope Inc — 0% of income from government
- South Florida Pbs 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.
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How do I get to Sally & Irwin B Nathanson Foundation?
Find your warmest path to Sally & Irwin B Nathanson 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.