· Private foundation
Mary Ann Weisberg and Bryce Perry 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 clustered by its grantee’s IRS cause code (NTEE), by year — across FY2017–2025.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2025
- Under $10k16 grants · $51k
- $10k–50k7 grants · $127k
- $50k–250k1 grant · $50k
| Recipient | Amount |
|---|---|
| CEDARS-SINAI MEDICAL CENTER | $50,000 |
| LOS ANGELES FOOD BANK | $35,000 |
| PLANNED PARENTHOOD | $25,000 |
| LOS ANGELES COUNTY MUSEUM OF ART | $22,100 |
| WALLIS ANNENBERG CENTER | $15,000 |
| THE MUSIC CENTER | $10,000 |
| US HOLOCAUST MUSEUM | $10,000 |
| SABAN COMMUNITY CLINIC | $10,000 |
| NATIONAL HOLOCAUST MUSEUM | $6,000 |
| ST JOHNS'S HEALTH CENTER FOUNDATION | $5,000 |
| THRIVE ANIMAL RESCUE | $5,000 |
| WOMEN'S CANCER RESEARCH FONDATION | $5,000 |
| MUSIC CENTER SPOTLIGHT | $5,000 |
| LOS ANGELES BALLET | $5,000 |
| SIMON WIESENTHAL CENTER | $3,500 |
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 (FY17–25, $94k) land where the poverty rate runs at 14%, against an area that typically sits at 10%. 100% 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 +51% since the first grant, against +10% for the ones you funded once.
40 repeat relationships — 20 still active in FY2025, 20 since wound down; 4 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, 94% of grant dollars renewed an existing relationship; $15k 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
CEDARS-SINAI MEDICAL CENTER9× · 2017–2025 · $185k · revenue +63%- TATHRIVE ANIMAL RESCUE INC7× · 2017–2025 · $165k · revenue +82%
- MAMUSEUM ASSOCIATES9× · 2017–2025 · $129k · revenue +89%
Funded once
- HHAMMERone grant, 2019 · $10k
- FOFRIENDS OF LA ANIMAL SHELTERSone grant, 2020 · $10k · revenue +16%
- TSTHE SANTA FE OPERAone grant, 2019 · $10k · revenue +15%
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.
See schedule osfmoma believes the art of our time is vital and shares it with passion and purpose, and that art and the creative process can open minds and help build a better world. for that reason, we assemble unparalleled collections,…
The central mission of the university of southern california is the development of human beings and society as a whole through the cultivation and enrichment of the human mind and spirit. the principal means by which our mission is…
The asian art museum celebrates, preserves, and promotes asian and asian american art and cultures for local and global audiences. we provide a dynamic forum for exchanging ideas, inviting collaboration, and fueling imagination to deepen…
The Television Academy is dedicated to celebrating excellence, innovation and the advancement of the telecommunications arts and sciences through recognition, education and leadership, while fostering a diverse, inclusive and accessible…
The mission of the university of california, irvine foundation (uc irvine foundation) is to raise and manage private funds to support uc irvine's broader mission of excellence in teaching, research and public service. to this end, the uc…
The specific purpose of this corporation is to: expand knowledge and appreciation of modern and contemporary latin american tine art that has been created since world war ii; to operate a museum; to collect and display latin american…
The jonsson cancer center foundation is the single most important vehicle for raising private funds for cancer research at ucla and plays a key role in advancing cancer treatments and care. please see schedule o for additional information.
To harness the power of the human immune system and advanced computing technologies to create and translate scientific discoveries into next generation vaccines and therapies for prevention, control and cure of chronic diseases, enabling…
The mission of the brooklyn institute of arts and sciences, d/b/a brooklyn museum (the "museum") is to bring people together through art and experiences that inspire celebration, compassion, courage, and the will to act. (see schedule o).
Lace both champions and challenges the art of our time by fostering artists who innovate, explore, and risk. we move within and beyond our four walls to provide opportunities for diverse publics to engage deeply with contemporary art. in…
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."
For reference, the grantee most central to the portfolio’s shape is The Museum of Contemporary Art Los Angeles and the most unlike its peers is The Shapiro Foundation. 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 32 years old; the field is 14. You back the established end — and your money leans older still.
The field is 24% startups (under 5 years old) — 2% of your grantees by number, and just 8% of your money.
The orgs you fund almost never close — 0.0% lost their exemption, against 14% 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.
54 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. 54 of the 83 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 CEDARS-SINAI MEDICAL CENTER ↗
- Who funds THRIVE ANIMAL RESCUE INC ↗
- Who funds MUSEUM ASSOCIATES ↗
- Who funds WALLIS ANNENBERG CENTER FOR THE PERFORMING ARTS ↗
- Who funds TOWER CANCER RESEARCH FOUNDATION ↗
- Who funds VISTA DEL MAR CHILD AND FAMILY SERVICES ↗
- Who funds ARMAND HAMMER MUSEUM OF ART AND CULTURAL CENTER INC ↗
- Who funds THE LOS ANGELES FREE CLINIC ↗
- Who funds The United States Holocaust Memorial Museum ↗
- Who funds WOMEN'S CANCER RESEARCH FOUNDATION ↗
- Who funds UCLA FOUNDATION ↗
- Who funds SIMON WIESENTHAL CENTER INC ↗
- Who funds FRIENDS OF THE LOS ANGELES FREE CLINIC ↗
- Who funds LANGE FOUNDATION ↗
- Who funds THE MUSEUM OF CONTEMPORARY ART LOS ANGELES ↗
- Who funds AMERICAN FRIENDS OF THE LOUVRE INC ↗
- Who funds LOS ANGELES BALLET INC ↗
- Who funds WOMEN'S GUILD CEDARS-SINAI MEDICAL CENTER ↗
- Who funds CROHN'S & COLITIS FOUNDATION INC ↗
- Who funds Beit T'Shuvah ↗
- Who funds MUSEUM OF CONTEMPORARY ART DETROIT ↗
- Who funds FRIENDS OF LA ANIMAL SHELTERS ↗
- Who funds THE SANTA FE OPERA ↗
- Who funds ALL SEATED IN A BARN ↗
- Who funds THE ALLIANCE FOR CLIMATE PROTECTION ↗
- Who funds VISIONARY WOMEN ↗
- Who funds CALIFORNIA PROFESSIONAL HORSEMENS FOUNDATION ↗
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 Community Foundation of Los Angeles · California Community Foundation · The Annenberg Foundation · The Razi Family Foundation · Sempra Foundation · National Philanthropic Trust · Gs Donor Advised Philanthropy Fund for Wealth Management Inc · Morgan Stanley Global Impact Funding Trust Inc · Vanguard Charitable Endowment Program · Charities Aid Foundation America · The Bank of America Charitable Foundation Inc · Donor Advised Charitable Giving Inc
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 Mary Ann Weisberg and Bryce Perry 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.
- Bayhealth Foundation Corporation — 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.
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How do I get to Mary Ann Weisberg and Bryce Perry Foundation?
Find your warmest path to Mary Ann Weisberg and Bryce Perry 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.