· Private foundation
The Michael and Karen Stone Family Foundation Inc
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 clustered by its grantee’s IRS cause code (NTEE), by year — across FY2020–2024.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2024
- Under $10k8 grants · $29k
- $10k–50k16 grants · $305k
- $50k–250k10 grants · $617k
- $250k+4 grants · $1.9M
| Recipient | Amount |
|---|---|
| DUKE UNIVERSITY | $1,150,000 |
| BISHOPS SCHOOL | $250,000 |
| WILDERNESS SAFARIS WILDLIFE TRUST | $250,000 |
| SAN DIEGO MUSEUM OF ART | $250,000 |
| RADY CHILDRENS HOSPITAL - SAN DIEGO | $100,000 |
| STANFORD UNIVERSITY | $100,000 |
| HARVARD BUSINESS SCHOOL | $62,500 |
| SHELBURNE FARMS | $51,500 |
| BIG BROTHERS BIG SISTERS OF SAN DIEGO COUNTY INC | $51,500 |
| VOICES FOR CHILDREN | $51,500 |
| CAMP SOUTHERN GROUND INC | $50,000 |
| REGENTS OF THE UNIVERSITY OF MICHIGAN | $50,000 |
| BISHOPS SCHOOL | $50,000 |
| DUKE UNIVERSITY | $50,000 |
| DUKE UNIVERSITY | $45,000 |
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 (FY20–24, $171k) land where the poverty rate runs at 7%, against an area that typically sits at 9%. 26% of those dollars go to grantees based in above-average-need neighborhoods. Your grants skew toward lower-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 +45% since the first grant, against +10% for the ones you funded once.
27 repeat relationships — 21 still active in FY2024, 6 since wound down; 4 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, 97% of grant dollars renewed an existing relationship; $75k 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
DUKE UNIVERSITY5× · 2020–2024 · $6.2M · revenue +49%- RCRADY CHILDREN'S HOSPITAL SAN DIEGO3× · 2020–2024 · $400k · revenue +40%
- SDSAN DIEGO MUSEUM OF ART2× · 2022–2024 · $250k · revenue +13%
Funded once
- MTME TO WE FOUNDATIONone grant, 2020 · $1.0M · revenue -72%
- EAEMPOWERS AFRICA INCgraduatedone grant, 2020 · $395k · revenue +250%
- IUINDIANA UNIVERSITY OF PENNSYLVANIAone grant, 2022 · $50k
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 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.
The mission of southern california university of health sciences (scu) is to educate students as competent, caring and successful practitioners of integrative healthcare. the university is committed to providing excellence in academics,…
Scu is a catholic and jesuit institution that makes student learning its central focus, promotes faculty and staff learning in its various forms, and exhibits organizational learning.
The scripps research institute ("tsri") performs high impact basic biomedical research, improves the human condition by fostering translation of its discoveries into useful products and engages in the highest quality graduate scientific…
Undergraduate, graduate, and professional education and research across a broad array of academic domains.
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.
The mission of the uc davis foundation is to secure, steward and manage private gifts for uc davis.
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…
University of the sciences prepares students to become leaders, innovators, and skilled practitioners in the sciences, the health professions, and related disciplines. we deliver excellence in teaching, research, and service through a safe…
The sarnoff cardiovascular research foundation is dedicated to cultivating the next generation of physician-leaders in cardiovascular medicine by funding and supporting medical students and physicians engaged in transformative research.
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…
Provide an independent forum for those who dare to read, think, speak, and write to advance the professional, literary, and scientific understanding of sea power and other issues critical to global security.
For reference, the grantee most central to the portfolio’s shape is The San Diego Foundation and the most unlike its peers is Honorary Deputy Sheriffs Assn of S D County. 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 42 years old; the field is 12. You back the established end — and your money leans older still.
The field is 26% startups (under 5 years old) — 2% of your grantees by number, and just 0% of your money.
The orgs you fund almost never close — 3% lost their exemption, against 15% 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 68 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 DUKE UNIVERSITY ↗
- Who funds ME TO WE FOUNDATION ↗
- Who funds RADY CHILDREN'S HOSPITAL SAN DIEGO ↗
- Who funds EMPOWERS AFRICA INC ↗
- Who funds SAN DIEGO MUSEUM OF ART ↗
- Who funds VOICES FOR CHILDREN ↗
- Who funds SHELBURNE FARMS ↗
- Who funds BIG BROTHERS BIG SISTERS OF SAN DIEGO COUNTY INC ↗
- Who funds UC SAN DIEGO FOUNDATION ↗
- Who funds NORWALKSTAMFORD GRASSROOTS TENNIS & EDUCATION INC ↗
- Who funds CAMP SOUTHERN GROUND INC ↗
- Who funds THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY ↗
- Who funds DAKSHANA FOUNDATION ↗
- Who funds CLIMATE VAULT ↗
- Who funds THE GILLISPIE SCHOOL ↗
- Who funds CHARITIES AID FOUNDATION AMERICA ↗
- Who funds SHELBURNE MUSEUM INC ↗
- Who funds LAKE CHAMPLAIN COMMITTEE INC ↗
- Who funds THE HOTCHKISS SCHOOL ↗
- Who funds SKIDMORE COLLEGE ↗
- Who funds NEUROLAB 360 ↗
- Who funds CALIFORNIA DENTAL HYGIENISTS ASSOCIATION FOUNDATION ↗
- Who funds Govern for California Foundation ↗
- Who funds University of Chicago ↗
- Who funds LAKE CHAMPLAIN COMMUNITY SAILING CENTER INC ↗
- Who funds THE SAN DIEGO FOUNDATION ↗
- Who funds The Salk Institute for Biological Studies ↗
- Who funds PROJECT CONCERN INTERNATIONAL ↗
- Who funds RADY CHILDREN'S HOSPITAL FOUNDATION SAN DIEGO ↗
- Who funds SPONSORS FOR EDUCATIONAL OPPORTUNITY 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: Sempra Foundation · The San Diego Foundation · Rancho Santa Fe Foundation · Gs Donor Advised Philanthropy Fund for Wealth Management Inc · Morgan Stanley Global Impact Funding Trust Inc · Jewish Community Foundation of San Diego · The Lisa & Steve Altman Family Foundation · Farrell Family Foundation · Shell USA Company Foundation · The Pfizer Foundation Inc · The Ayco Charitable Foundation · The Blackbaud Giving 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 The Michael and Karen Stone Family 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.
- Shelburne Museum Inc — 9% of income from government
- Shelburne Farms — 3% 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 Michael and Karen Stone Family Foundation Inc?
Find your warmest path to The Michael and Karen Stone Family 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.