· Private foundation
Steven and Laura Mayer Family 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.
By grant size · FY2024
- Under $10k46 grants · $127k
- $10k–50k12 grants · $210k
| Recipient | Amount |
|---|---|
| Princeton University | $35,000 |
| Charity Water | $25,000 |
| The Brent Shapiro Foundation | $20,000 |
| Isles | $20,000 |
| Everytown for Gun Safety | $20,000 |
| Working Nation | $20,000 |
| Feeding America | $15,000 |
| Ramona Convent Secondary School | $15,000 |
| Los Angeles Mission | $10,000 |
| American Friends of Magen David Adom | $10,000 |
| Our Lady of Mount Carmel | $10,000 |
| Ukraine relief direct relief | $10,000 |
| The New Orleans Jazz & Heritage FoundationThe New Orleans Jazz & Heritage | $6,000 |
| United Boys & Girls Clubs of Santa Barbara County | $5,000 |
| Food Bank of Santa Barbara County | $5,000 |
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 (FY17–24, $431k) land where the poverty rate runs at 16%, against an area that typically sits at 11%. 99% 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 +38% since the first grant, against +17% for the ones you funded once.
68 repeat relationships — 51 still active in FY2024, 17 since wound down; 6 grantees were first funded in FY2024 (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 FY2024, 94% of grant dollars renewed an existing relationship; $21k 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
The Trustees of Princeton University8× · 2017–2024 · $1.4M · revenue +5%- GIGLOBAL INVESTMENT FOUNDATION FOR TOMORROW INC6× · 2019–2024 · $445k · revenue +37% · 48% of their budget
MEDECINS SANS FRONTIERES USA INC7× · 2017–2023 · $280k · revenue +98%
Funded once
- PPPACIFIC PRIDE FOUNDATIONone grant, 2019 · $20k · revenue -30%
- MPMishawaka Parks & Rec Foundation Inclone grant, 2021 · $10k
- LBLEWY BODY DEMENTIA FOUNDATIONone grant, 2017 · $10k
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 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.
The foundation's mission is to improve the oral health of all californians by supporting the dental profession and its efforts to meet community needs.
The organization is a non-partisan, membership based speakers' forum that connects business leaders, community members, and engaged individuals with shared interest in local, national, and global affairs. it provides an open and accessible…
We steward $1.5 billion in charitable assets through donor-advised funds, endowments, and other giving vehicles. partnering with 1,400 individuals, families, and organizations, we build enduring legacies and multigenerational impact. in…
Based on jewish values, the jewish federation of greater los angeles convenes and leads the community and leverages its resources to assure the continuity of the jewish people, support a secure state of israel, care for jews in need here…
The san diego foundation inspires enduring philanthropy and enables community solutions to improve the quality of life in our region.
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 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…
To eliminate disparities in health care access and outcomes by providing superior quality health and human services through an integrated world-class delivery system for latino, multi-ethnic underserved communities in southern california.
The union of concerned scientists puts rigorous, independent science into action, developing solutions and advocating for a healthy, safe, and just future.
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…
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…
For reference, the grantee most central to the portfolio’s shape is California Community Foundation and the most unlike its peers is Jose Antonio Grifols Lucas Foundation 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) — 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 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.
71 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. 71 of the 94 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 Trustees of Princeton University ↗
- Who funds GLOBAL INVESTMENT FOUNDATION FOR TOMORROW INC ↗
- Who funds MEDECINS SANS FRONTIERES USA INC ↗
- Who funds CHARITY GLOBAL INC ↗
- Who funds ISLES INC ↗
- Who funds THE BRENT SHAPIRO FOUNDATION FOR DRUG AWARENESS ↗
- Who funds EDWARD CHARLES FOUNDATION ↗
- Who funds Feeding America ↗
- Who funds ELTON JOHN AIDS FOUNDATION INC ↗
- Who funds LOS ANGELES MISSION INC ↗
- Who funds CALIFORNIA COMMUNITY FOUNDATION ↗
- Who funds EVERYTOWN FOR GUN SAFETY SUPPORT FUND INC ↗
- Who funds NORTH AMERICAN CONFERENCE ON ETHIOPIAN JEWRY INC ↗
- Who funds Impact Inc ↗
- Who funds The Flag Foundation ↗
- Who funds THE JOE TORRE SAFE AT HOME FOUNDATION ↗
- Who funds ISRAEL CHILDRENS CANCER FOUNDATION INC ↗
- Who funds WILL GEERS THEATRICUM BOTANICUM ↗
- Who funds RETURN TO FREEDOM INC ↗
- Who funds EQUAL JUSTICE INITIATIVE ↗
- Who funds AMERICAN FRIENDS OF MAGEN DAVID ADOM ↗
- Who funds Pacific Oaks Education Corporation ↗
- Who funds ST JUDE CHILDREN'S RESEARCH HOSPITAL INC ↗
- Who funds NATIONAL JEWISH HEALTH ↗
- Who funds Children's Hospital Los Angeles ↗
- Who funds GREENWAY ARTS ALLIANCE ↗
- Who funds UCLA FOUNDATION ↗
- Who funds Foodbank of Santa Barbara County Inc ↗
- Who funds THE KESWELL SCHOOL ↗
- Who funds JUMPSTART FOR YOUNG CHILDREN INC ↗
- Who funds PACIFIC PRIDE FOUNDATION ↗
- Who funds THE JEWISH FOUNDATION FOR THE RIGHTEOUS INC ↗
- Who funds AMERICAN CIVIL LIBERTIES UNION OF MARYLAND ↗
- Who funds MONTECITO FIREFIGHTERS CHARITABLE 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: Santa Barbara Foundation · Conrad N Hilton Foundation · Manitou Fund · California Community Foundation · Rudi Schulte Family Foundation · Hutton Foundation Dba Hutton Parker Foundation · Jewish Communal Fund · Jewish Community Foundation of Los Angeles · Gs Donor Advised Philanthropy Fund for Wealth Management Inc · National Philanthropic Trust · Network for Good · Raymond James Charitable Endowment Fund
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 Steven and Laura Mayer Family 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.
- Isles Inc — 21% of income from government
- The Trustees of Princeton University — 11% 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 Steven and Laura Mayer Family Foundation?
Find your warmest path to Steven and Laura Mayer Family 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.