· Private foundation
Claire and Jack Nath Charitable 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 FY2017–2025.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2025
- Under $10k18 grants · $35k
- $10k–50k2 grants · $33k
| Recipient | Amount |
|---|---|
| VARIOUS UPON REQUEST | $22,678 |
| MASS GENERAL HOSPITAL | $10,000 |
| FRIENDS OF IDF | $5,500 |
| COLUMBIA UNIVERSITY | $5,000 |
| Individual grant recipient | $3,580 |
| THE DANIEL A NATH CHARITABLE FOUNDA | $3,200 |
| TEMPLE EMETH | $3,000 |
| TEMPLE SHIR TIKVAH | $2,500 |
| WGBH | $2,250 |
| SMITH COLLEGE | $2,000 |
| Individual grant recipient | $2,000 |
| CHABAD OF POTOMAC VILLAGE | $2,000 |
| REVELS INC | $1,500 |
| PLANNED PARENTHOOD | $700 |
| ROSIES PLACE | $300 |
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 (FY17–23, $9k) land where the poverty rate runs at 9%, against an area that typically sits at 9%. 44% of those dollars go to grantees based in above-average-need neighborhoods. Your grants spread fairly evenly across need levels.
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.
21 repeat relationships — 16 still active in FY2025, 5 since wound down; 3 grantees were first funded in FY2025 (too recent to call).
How the two cohorts compare
Organizations
Total granted
Still filing today
New vs renewed · share of each year
In FY2025, 88% of grant dollars renewed an existing relationship; $7k 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
FRIENDS OF THE ISRAEL DEFENSE FORCES9× · 2017–2025 · $142k · revenue +53%- TTTHE TRUSTEES OF THE SMITH COLLEGE9× · 2017–2025 · $29k · revenue +52%
The Trustees of Princeton University8× · 2017–2025 · $27k · revenue +5%
Funded once
- FCFRIENDSHIP CIRCLEone grant, 2020 · $5k
- JSJOSEPH SLIFKA CENTERone grant, 2023 · $2k
- IGIndividual grant recipientone grant, 2017 · $1k
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.
Western new england university, a comprehensive private institution with a tradition of excellence in teaching and scholarship and a commitment to service, awards undergraduate, master's, and doctoral degrees in various departments from…
The university is composed of several colleges and schools providing undergraduate, graduate, professional and post-doctoral education and training and research and clinical programs.
Biu produces students who excel in the sciences, humanities, law, engineering, business & the arts.
Fairleigh dickinson university is a center of academic excellence dedicated to the preparation of world citizens through global education. the university strives to provide students with the multi-disciplinary, intercultural, and ethical…
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.
Mission strengthened by more than a century and a half of dedication to academic excellence, boston college commits itself to the highest standards of teaching and research in undergraduate, graduate and professional programs and to the…
The university's goal in the coming decade is to advance learning through the integration of teaching, research and service to others. the core of this goal is to prepare graduates to engage with the world and lead lives of meaning. to do…
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.
Education and Research
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…
To educate students in the liberal arts through free inquiry and the open exchange of ideas.when grinnell college framed its charter in the iowa territory of the united states in 1846, it set forth a mission to educate its students "for…
The bac is committed to provide excellence in design education grounded in practice and accessible to diverse communities.
For reference, the grantee most central to the portfolio’s shape is Trustees of Boston University and the most unlike its peers is Friends of the Israel Defense Forces. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
14 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. 14 of the 32 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 FRIENDS OF THE ISRAEL DEFENSE FORCES ↗
- Who funds THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK ↗
- Who funds THE TRUSTEES OF THE SMITH COLLEGE ↗
- Who funds The Trustees of Princeton University ↗
- Who funds REVELSINC ↗
- Who funds GAY MEN'S HEALTH CRISIS INC ↗
- Who funds The George Washington University ↗
- Who funds BENDER JCC OF GREATER WASHINGTON ↗
- Who funds ROSIE'S PLACE INC ↗
- Who funds CHILDREN OF THE NATIONS ↗
- Who funds BROOKLINE MUSIC SCHOOL INC ↗
- Who funds OPPORTUNITY VILLAGE ↗
- Who funds TRUSTEES OF BOSTON UNIVERSITY ↗
- Who funds PEF ISRAEL ENDOWMENT FUNDS 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: 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 Claire and Jack Nath Charitable 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.
- Trustees of Boston University — 12% of income from government
- The Trustees of Princeton University — 11% of income from government
- Revelsinc — 1% of income from government
- The Trustees of the Smith College — 1% of income from government
- Brookline Music School Inc — 1% of income from government
- Bender Jcc of Greater Washington — 1% of income from government
- Rosie's Place 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 Claire and Jack Nath Charitable Foundation?
Find your warmest path to Claire and Jack Nath Charitable 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.