· Private foundation
The Bill and Ann Ziff Foundation
Its FY2024 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 FY2017–2024.
Where the money goes
Your grants by size, and where they go.
| Recipient | Amount |
|---|---|
| METROPOLITAN OPERA ASSOCIATION | $41,500 |
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.
Dollar for dollar, your grants (FY17–24) land where the poverty rate runs at 17%, against an area that typically sits at 12%. 99% of your 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 +44% since the first grant, against +11% for the ones you funded once.
17 repeat relationships — 1 still active in FY2024, 16 since wound down.
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 FY2024, 100% of grant dollars renewed an existing relationship; $0 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
- LCLINCOLN CENTER FOR THE PERFORMING ARTS INC6× · 2017–2022 · $2.2M · revenue +45%
- MAMUSEUM ASSOCIATES5× · 2018–2022 · $1.5M · revenue +89%
- SFSING FOR HOPE INC5× · 2017–2021 · $918k · revenue +65%
Funded once
- IGIndividual grant recipientone grant, 2018 · $100k
- WJWilliam Jewell Collegeone grant, 2021 · $100k · revenue -3%
- WSWORLD SCIENCE FOUNDATIONone grant, 2021 · $100k · revenue -40%
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.
We believe opera is a uniquely compelling, entertaining and emotionally thrilling art form. our mission is to bring together growing audiences to experience opera's transformative power.
Chicago opera theater expands the tradition of opera as a living art form by engaging lovers of music and storytelling through innovative experiences, predominantly of new and rarely performed works.
Manhattan school of music is deeply committed to excellence in education, performance, and creative activity; to the humanity of the school's environment; and to the cultural enrichment of the larger community. a premiere international…
We believe in the life-changing, transformational, revelatory power of great art and opera. Lyric Opera of Chicago exists to provide a broad, deep, and relevant cultural service to the Chicago region and the nation, and to advance the…
To serve the public by producing world-class opera that preserves, promotes and advances the art form while embodying the diversity, spirit and artistic sensibility unique to los angeles. we envision an engaged and enlightened community in…
The mission of florida grand opera is to enrich people's lives through an awareness and deeper appreciation of opera while supporting the operations of the greater miami opera and the opera guild, inc. by expanding its reach to diverse…
The metropolitan museum of art collects, studies, conserves, and presents significant works of art across all times and cultures in order to connect people to creativity, knowledge, and ideas.
Chamber orchestra of new york (cony) is a premier ensemble that features a seasoned roster of our city's most flourishing musicians. the orchestra is internationally distinguished for championing unique repertoire that bridges the…
NYFOS is dedicated to creating intimate song concerts of great beauty and originality, weaving music, poetry, history and humor into unforgettable evenings of compelling theater, entertaining, educating and creating community among…
To enrich people's lives through an awareness and deeper appreciation of opera in broward county.
The orchestra pursues its mission, "to enrich and connect our community through intimate and transformative musical experiences which exemplify and foster artistic excellence, education and innovation," through the blend of traditional…
For reference, the grantee most central to the portfolio’s shape is Metropolitan Opera Association Inc and the most unlike its peers is Fairchild Tropical Botanic Garden 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 45 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.
31 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. 31 of the 43 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 Metropolitan Opera Association Inc ↗
- Who funds LINCOLN CENTER FOR THE PERFORMING ARTS INC ↗
- Who funds MUSEUM ASSOCIATES ↗
- Who funds SING FOR HOPE INC ↗
- Who funds Temple University - Of The Commonwealth System of Higher Education ↗
- Who funds American Museum of Natural History ↗
- Who funds LANG LANG INTERNATIONAL MUSIC FOUNDATION INC ↗
- Who funds William Jewell College ↗
- Who funds WORLD SCIENCE FOUNDATION ↗
- Who funds ORIGINAL MUSIC WORKSHOP INC ↗
- Who funds MUSIC ASSOCIATES OF ASPEN INC ↗
- Who funds Americans for the Arts Inc ↗
- Who funds The Metropolitan Opera Guild Inc ↗
- Who funds THE AMERICAN FUND FOR CHARITIES ↗
- Who funds ST LUKES CHAMBER ENSEMBLE INC ↗
- Who funds OPERA AMERICA INC ↗
- Who funds NEW YORK CITY OPERA ↗
- Who funds FAIRCHILD TROPICAL BOTANIC GARDEN INC ↗
- Who funds ENTERTAINMENT INDUSTRY FOUNDATION ↗
- Who funds OPERA PHILADELPHIA ↗
- Who funds FRIENDS OF THE HIGH LINE INC ↗
- Who funds LOUIS ARMSTRONG HOUSE MUSEUM ↗
- Who funds BROOME STREET ACADEMY CHARTER HIGH SCHOOL ↗
- Who funds INTERNATIONAL WOMEN'S HEALTH COALITION ↗
- Who funds Opera Theatre of Saint Louis ↗
- Who funds ARTSMART ↗
- Who funds MCO Cultural Exchange Corporation ↗
- Who funds MALOTO 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 Howard and Sarah D Solomon Foundation · The Andrew W Mellon Foundation · Jewish Communal Fund · The Ford Foundation · The Goldman Sachs Charitable Gift Fund · The Aaron Copland Fund for Music Inc Co Alter Kendrick & Baron LLP · The Wallace Foundation · National Philanthropic Trust · The Howard Gilman Foundation Inc · The Hyde and Watson Foundation · Jpmorgan Chase Foundation · The Ayco Charitable 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 Bill and Ann Ziff 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.
- Fairchild Tropical Botanic Garden Inc — 4% 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 The Bill and Ann Ziff Foundation?
Find your warmest path to The Bill and Ann Ziff 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.