· Private foundation
Shellbrook 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 |
|---|---|
| MIDDLEBURY COLLEGE | $5,000 |
| CATE SCHOOL | $5,000 |
| MONTECITO UNION SCHOOL FOUNDATION | $5,000 |
| TAFT SCHOOL | $5,000 |
| LAGUNA BLANCA SCHOOL | $5,000 |
| BOWDOIN | $5,000 |
| STANFORD UNIVERSITY | $5,000 |
| MARIN COUNTY FOUNDATION | $1,000 |
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 (FY17–21, $6k) land where the poverty rate runs at 11%, against an area that typically sits at 9%. 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 +47% since the first grant, against +6% for the ones you funded once.
17 repeat relationships — 4 still active in FY2024, 13 since wound down; 3 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, 65% of grant dollars renewed an existing relationship; $11k 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
- PAPresident and Fellows of Middlebury College5× · 2018–2024 · $15k · revenue +47%
- TTTHE TAFT SCHOOL CORPORATION3× · 2022–2024 · $15k · revenue +47%
- PJPUPPY JAKE FOUNDATION4× · 2017–2020 · $4k · revenue +2%
Funded once
- SBSanta Barbara Bucket Brigadeone grant, 2022 · $5k · revenue -33%
- REREDWOOD EMPIRE FOOD BANKone grant, 2020 · $4k · revenue +17%
- FBFOOD BANK OF IOWAgraduatedone grant, 2020 · $3k · revenue +42%
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.
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 San Francisco Bay Bird Observatory is dedicated to the conservation of birds and their habitats through science and outreach.
Santa Barbara Education Foundation (SBEF) provides and supports programs that enrich the academic, artistic, and personal development of all students in the Santa Barbara Unified School District.
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…
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.
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…
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…
The organization provides professional investment management services for endowed gifts and financial assets entrusted to the ucsf foundation.
The bar association of san francisco champions equal access to justice and promotes humanity, excellence, and diversity in the legal profession. we provide legal services to disadvantaged and underserved individuals in san francisco. we…
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.
Csu east bay foundation is an auxiliary organization of california state university east bay and the california state university system. the organization's mission is to provide services that aid, supplement, and advance the educational…
To educate and inspire girls to become innovators and leaders in stem.
For reference, the grantee most central to the portfolio’s shape is Partners in School Innovation and the most unlike its peers is National Wildlife Federation. 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 41 years old; the field is 35. You back the established end — and your money leans older still.
The field is 14% 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 8% 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.
34 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. 34 of the 53 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 BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY ↗
- Who funds Montecito Union School Foundation ↗
- Who funds President and Fellows of Middlebury College ↗
- Who funds THE TAFT SCHOOL CORPORATION ↗
- Who funds Santa Barbara Bucket Brigade ↗
- Who funds CATE SCHOOL ↗
- Who funds LAGUNA BLANCA SCHOOL ↗
- Who funds REDWOOD EMPIRE FOOD BANK ↗
- Who funds PUPPY JAKE FOUNDATION ↗
- Who funds SANTA BARBARA CHANNELKEEPER INC ↗
- Who funds FOOD BANK OF IOWA ↗
- Who funds PARTNERS IN SCHOOL INNOVATION ↗
- Who funds Sonoma Ecology Center ↗
- Who funds Bridgewater Land Trust ↗
- Who funds FOOD RUNNERS ↗
- Who funds CENTER FOR SUCCESSFUL AGING ↗
- Who funds SONOMA LAND TRUST ↗
- Who funds MENTAL HEALTH ASSOCIATION IN SANTA BARBARA COUNTY ↗
- Who funds NATIONAL WILDLIFE FEDERATION ↗
- Who funds Iowa Legal Aid ↗
- Who funds Children of Shelters ↗
- Who funds TIDES FOUNDATION ↗
- Who funds UNITY SHOPPE INC ↗
- Who funds NATIONAL NETWORK OF ABORTION FUNDS INC ↗
- Who funds Pets Lifeline Inc ↗
- Who funds WORLD WILDLIFE FUND INC ↗
- Who funds RAPHAEL HOUSE OF SAN FRANCISCO 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: Santa Barbara Foundation · Marin Community Foundation · Hutton Foundation Dba Hutton Parker Foundation · The Kirby-Jones Foundation · Williams-Corbett Foundation · Ann Jackson Family Foundation · Www Foundation · Manitou Fund · McNabb Foundation · The Goldman Sachs Charitable Gift Fund · The San Francisco Foundation · American Endowment 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 Shellbrook 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.
- President and Fellows of Middlebury College — 1% 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.