· Private foundation
Wendell Family 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 placed by its stated purpose and the recipient’s mission, by year — across FY2017–2025.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2025
- Under $10k36 grants · $93k
- $10k–50k9 grants · $135k
- $50k–250k5 grants · $415k
- $250k+1 grant · $260k
| Recipient | Amount |
|---|---|
| PRINCETON UNIVERSITY | $260,000 |
| GOLDEN GATE NATIONAL PARKS CONSERVANCY | $185,000 |
| ST PAUL'S EPISCOPAL CHURCH | $78,500 |
| UCSF FOUNDATION | $51,000 |
| JOHNS HOPKINS MEDICAL SCHOOL | $50,000 |
| SEASON OF SHARING FUND | $50,000 |
| HARVARD BUISNESS SCHOOL MBA CLASS OF 1976 INC | $25,000 |
| THE EXPLORATORIUM | $25,000 |
| HARVARD BUSINESS SCHOOL | $25,000 |
| SAN FRANCISCO BALLET | $10,000 |
| MARIN COUNTRY DAY SCHOOL | $10,000 |
| PARENTS ASSOCIATION OF KIDS INTO SPEAKING SPANISH | $10,000 |
| THE LITTLE SCHOOL | $10,000 |
| PRINCETON IN AFRICA | $10,000 |
| AMERICAN INDIA FOUNDATION | $10,000 |
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, $25k) land where the poverty rate runs at 11%, against an area that typically sits at 9%. 90% 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 +27% since the first grant, against +23% for the ones you funded once.
114 repeat relationships — 37 still active in FY2025, 77 since wound down; 14 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, 85% of grant dollars renewed an existing relationship; $136k 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 University9× · 2017–2025 · $1.0M · revenue +5%- CSCHRONICLE SEASON OF SHARING FUND9× · 2017–2025 · $345k · revenue +96%
JOHNS HOPKINS UNIVERSITY3× · 2022–2024 · $200k · revenue +26%
Funded once
- FIFISHERS ISLAND CONSERVANCY INCone grant, 2019 · $50k · revenue -48%
- U1UCC 1886 FOUNDATIONone grant, 2022 · $35k
- CDCHILDREN'S DAY SCHOOL INCone grant, 2023 · $30k · revenue -5%
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 the silicon schools fund is to improve education through supporting the launch of excellent new schools, improving academic instruction in existing schools, and by funding some of the boldest innovations in education…
Guided by the principles of academic rigor and diversity, the international school of san francisco offers programs of study in french and english to prepare its graduates for a world in which the ability to think critically and to…
The organization provides professional investment management services for endowed gifts and financial assets entrusted to the ucsf foundation.
At san francisco friends school, students learn in a community grounded in the quaker values of reflection, integrity, peaceful problem-solving and stewardship. our teachers challenge students with a dynamic curriculum that inspires…
A private school that cultivates and celebrates the intellectual, imaginative, and humanitarian promise of each student in a community that practices mutual respect, embraces diversity, and inspires passion for learning.
The mission of the uc davis foundation is to secure, steward and manage private gifts for uc davis.
The bac is committed to provide excellence in design education grounded in practice and accessible to diverse communities.
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.
Golden gate university prepares individuals to lead and serve by providing high quality, practice-based educational programs in law, taxation, business and related professions - as a nonprofit institution - in an innovative and challenging…
The association serves its members by creating resources that enable california school administrators to develop and apply creative leadership and management skills and in turn, improve the educational process for all students.
The uc santa barbara foundation actively works to further the goals of the university of california, santa barbara. the foundation seeks to maintain and nurture the university's quality and distinction. on behalf of the campus, the…
For reference, the grantee most central to the portfolio’s shape is Boys & Girls Clubs of San Francisco and the most unlike its peers is Demarest Swim Club. 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 34 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 0% of your money.
The orgs you fund almost never close — 2% 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.
173 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. 173 of the 302 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
Showing your 200 largest grantees by grant value.
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 GOLDEN GATE NATIONAL PARKS CONSERVANCY ↗
- Who funds The Trustees of Princeton University ↗
- Who funds CHRONICLE SEASON OF SHARING FUND ↗
- Who funds JOHNS HOPKINS UNIVERSITY ↗
- Who funds THE EXPLORATORIUM ↗
- Who funds COTTAGE 1886 FOUNDATION INC ↗
- Who funds THE HAMLIN SCHOOL ↗
- Who funds UNIVERSITY OF CALIFORNIA SAN FRANCISCO FOUNDATION ↗
- Who funds GRASSROOT SOCCER INC ↗
- Who funds FISHERS ISLAND CONSERVANCY INC ↗
- Who funds PRATHAM USA ↗
- Who funds PALO ALTO PLAYERS PENINSULA CENTER STAGE ↗
- Who funds THE AMERICAN INDIA FOUNDATION ↗
- Who funds CHILDREN'S DAY SCHOOL INC ↗
- Who funds TOWN SCHOOL FOR BOYS ↗
- Who funds San Francisco Education Fund ↗
- Who funds FOUNDATION FOR STUDENT COMMUNICATIONINC ↗
- Who funds Princeton-Blairstown Center Inc ↗
- Who funds ISLES INC ↗
- Who funds UNIVERSITY HIGH SCHOOL ↗
- Who funds UTEC Inc ↗
- Who funds SAN FRANCISCO UNIVERSITY HIGH SCHOOL ↗
- Who funds REDWOOD CREDIT UNION COMMUNITY FUND INC ↗
- Who funds Edwell Inc ↗
- Who funds PAN-MASSACHUSETTS CHALLENGE INC ↗
- Who funds PRINCETON IN AFRICA INC ↗
- Who funds SAN FRANCISCO BALLET ASSOCIATION ↗
- Who funds THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY ↗
- Who funds SJOGREN'S FOUNDATION INC ↗
- Who funds KIPP BAY AREA SCHOOLS ↗
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: Marin Community Foundation · The San Francisco Foundation · Jewish Community Federation of San Francisco the Peninsula Marin & Sonoma · Silicon Valley Community Foundation · Robert and Dana Emery Family Foundation Rockefeller Trust Company · Lisa & Douglas Goldman Fund · The Goldman Sachs Charitable Gift Fund · McNabb Foundation · The Stanley S Langendorf Foundation · Gs Donor Advised Philanthropy Fund for Wealth Management Inc · Bothin Foundation · John Pritzker Family 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 Wendell 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.
- Utec Inc — 46% of income from government
- Reclaim Childhood Inc — 24% of income from government
- Isles Inc — 21% of income from government
- Johns Hopkins University — 12% of income from government
- Manomet Inc — 12% of income from government
- The Trustees of Princeton University — 11% of income from government
- Institute for Advanced Study - Louis Bamberger & Mrs Felix Fuld Foundation — 7% of income from government
- President and Fellows of Harvard College — 7% of income from government
- Best Buddies International Inc — 4% of income from government
- Rosie's Place Inc — 0% of income from government
- Pan-Massachusetts Challenge Inc — 0% of income from government
- Williams College — 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 Wendell Family Foundation?
Find your warmest path to Wendell 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.