· Private foundation
Nathan Tannenbaum 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 FY2020–2025.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2025
- Under $10k41 grants · $40k
- $10k–50k1 grant · $10k
| Recipient | Amount |
|---|---|
| WINSTON PREPARATORY SCHOOL | $10,000 |
| THE JOFFREY BALLET | $8,000 |
| CHILDREN'S RESEARCH FUND | $5,000 |
| NATIONAL NETWORK OF ABORTION FUNDS | $3,000 |
| GIVEDIRECTLY | $2,000 |
| NATIONAL IMMIGRATION LAW CENTER | $2,000 |
| INTERNATIONAL RESCUE CENTER | $1,000 |
| Individual grant recipient | $1,000 |
| ALL-OPTIONS PREGNANCY RESOURCE CENT | $1,000 |
| PULSATILE TINNITUS FOUNDATION | $1,000 |
| NATIONAL IMMIGRATION PROJECT | $1,000 |
| BROWN UNIVERSITY | $1,000 |
| HISPANIC SCHOLARSHIP FUND | $1,000 |
| THE PARKSIDE SCHOOL | $1,000 |
| ALABAMA COHOSH COLLABORATIVE | $1,000 |
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 (FY20–25, $9k) land where the poverty rate runs at 13%, against an area that typically sits at 11%. 57% 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.
And the relationships you keep tend to grow: grantees you re-up on have seen median revenue of +25% since the first grant, against -5% for the ones you funded once.
36 repeat relationships — 20 still active in FY2025, 16 since wound down; 21 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, 63% of grant dollars renewed an existing relationship; $18k 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
- TPTHE PARKSIDE SCHOOL6× · 2020–2025 · $81k · revenue +21%
- TJTHE JOFFREY BALLET6× · 2020–2025 · $46k · revenue +57%
NATIONAL NETWORK OF ABORTION FUNDS INC5× · 2020–2025 · $23k · revenue +141%
Funded once
- ACAbortion Care for Tennesseegraduatedone grant, 2022 · $2k · revenue +46%
- UMUNDUE MEDICAL DEBT AKA RIP MEDICAL DEBTone grant, 2024 · $2k
- PJPREGNANCY JUSTICE INCgraduatedone grant, 2022 · $1k · revenue +65%
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 npr foundation ("foundation") is organized and operated exclusively for the benefit of its sole supported organization, national public radio, inc. ("npr inc."). the foundation supports npr inc. through various activities such as…
National public radio, inc. ("npr") works collaboratively with member public radio station licensees ("member stations") to create a more informed public, one that is challenged and invigorated by a deeper understanding and appreciation of…
Npr international operations, inc. ("nprio") supports the international newsgathering activities of national public radio, inc. through bureaus and offices established locally in foreign countries.
National institute for reproductive health, inc. works to protect and advance equitable access to reproductive health care by building power at the state and local level. using an approach that is rooted in partnerships with state and…
Ipas works globally to advance reproductive justice by expanding access to abortion and contraception.
Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.
Women donors network advances a just, equitable, and sustainable world through the power of philanthropy, women's leadership, and collective and individual action.
CITY REPORT, INC. serves the people of New York through independent journalism that answers their information needs and holds the powerful to account.
As a leading charitable foundation and healthcare advocacy organization, the pan foundation is dedicated to accelerating access to treatment for those who need it most and empowering patients on their healthcare journeys. we provide…
The common application is a not-for-profit membership organization of over 1,100 colleges and universities across the globe committed to access, equity, and integrity in the college admission process. every year, over 1.5 million students…
See schedule onorc at the university of chicago conducts research and data science on critical societal issues to guide decision-making and the development of programs and public policy. our experts identify relationships and trends, and…
Nashville public radio's mission is to be the most trusted & independent nashville voice, connecting our communities through non-partisan journalism, compelling storytelling, civil conversation and music discovery.
For reference, the grantee most central to the portfolio’s shape is National Immigration Law Center and the most unlike its peers is Charity Global 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 33 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 1% of your money.
The orgs you fund almost never close — 0.0% 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.
67 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. 67 of the 96 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 THE PARKSIDE SCHOOL ↗
- Who funds THE JOFFREY BALLET ↗
- Who funds NATIONAL NETWORK OF ABORTION FUNDS INC ↗
- Who funds THE WINSTON PREPARATORY SCHOOL ↗
- Who funds BROWN UNIVERSITY ↗
- Who funds GIVEDIRECTLY INC ↗
- Who funds National Network of Abortion Funds ↗
- Who funds SAN FRANCISCO CONSERVATORY OF MUSIC ↗
- Who funds MEDICAL DEBT RESOLUTION INC ↗
- Who funds ALI FORNEY CENTER INC ↗
- Who funds The New York Public Library Astor Lenox and Tilden Foundations ↗
- Who funds NATIONAL IMMIGRATION LAW CENTER ↗
- Who funds Abortion Care for Tennessee ↗
- Who funds HUDSON GUILDINC ↗
- Who funds PRO PUBLICA INC ↗
- Who funds NEW WORLD SYMPHONY INC ↗
- Who funds NORTHERN ILLINOIS FOOD BANK ↗
- Who funds COLLEGE BOUND OPPORTUNITIES ↗
- Who funds HISPANIC SCHOLARSHIP FUND ↗
- Who funds NATIONAL IMMIGRATION PROJECT OF THE NATIONAL LAWYERS GUILD INC ↗
- Who funds ALABAMA COHOSH COLLABORATIVE ↗
- Who funds PHOENIX SYMPHONY ASSOCIATION ↗
- Who funds PREGNANCY JUSTICE INC ↗
- Who funds CENTER FOR CONSTITUTIONAL RIGHTS ↗
- Who funds TWLOHA INC ↗
- Who funds JTP PROFESSIONAL SERVICE CORPORATION ↗
- Who funds Kentucky Health Justice Network Inc ↗
- Who funds BROOKLYN PUBLIC LIBRARY ↗
- Who funds Sylvia Rivera Law Project 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: National Network of Abortion Funds Inc · The Yelp Foundation · Amalgamated Charitable Foundation Inc · The Rockefeller Foundation · Anderson-Rogers Foundation Inc · Hopewell Fund · AbbVie Foundation · Jewish Federation of Metropolitan Chicago · First Bank Chicago Foundation · Women Donors Network · Ag Foundation · The Grove 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 Nathan Tannenbaum 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.
- New World Symphony 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 Nathan Tannenbaum Foundation Inc?
Find your warmest path to Nathan Tannenbaum 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.