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Plinth

· Private foundation

Clay Foundation - West

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.

$646k
Granted FY2025still arriving
21
Grants FY2025still arriving
2
States reached
$166k
Largest
01What you fund
01100% classified

What you funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year — across FY20172025.

Arts & Culture$1.9MEducation$499kScience & Tech$338kHuman Services$282kHealth$175kYouth Development$173kRecreation & Sports$153kCommunity Improvement$90kOther$0
02FY2025 · 21 grants

Where the money goes

Your grants by size, and where they go.

By grant size · FY2025

  • Under $10k2 grants · $15k
  • $10k–50k17 grants · $365k
  • $50k–250k2 grants · $266k
$20,000
Median grant
2
States reached
$3.8M
Total assets
Largest grants
RecipientAmount
San Francisco Playhouse$166,200
Cinnabar Theater$100,000
Exploratorium$40,000
Sonoma Arts Live$40,000
La Luz Center$35,000
Sonoma Valley Hospital Foundation$30,000
Chinese American International Scho$30,000
Jack London Park Partners$25,000
American Conservatory Theatre$20,000
Brooks School$20,000
Sonoma Valley Mentoring Alliance$20,000
Smuin Ballet$15,000
Mission Science Workshop$15,000
Marin Theatre Company$15,000
Sonoma Community Center$15,000
02The need
03

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.

show:

Your human-services grants (FY17–25, $329k) land where the poverty rate runs at 9%, against an area that typically sits at 8%. 100% of those dollars go to grantees based in above-average-need neighborhoods. Most of your grants land in higher-need ZIPs.

area typical 8%La Luz Center: $35k → 9%La Luz Center: $30k → 9%La Luz Center: $30k → 9%La Luz Center: $30k → 9%Compass Family Services: $8k → 10%Compass Family Services: $8k → 10%Compass Family Services: $8k → 10%La Luz Center: $20k → 9%Compass Family Services: $8k → 10%Compass Family Services: $8k → 10%Compass Family Services: $5k → 10%Compass Family Services: $3k → 10%La Luz Center: $15k → 9%Compass Family Services: $3k → 10%Compass Family Services: $3k → 10%La Luz Center: $15k → 9%Sonoma Community Center: $15k → 9%Sonoma Community Center: $15k → 9%Sonoma Community Center: $15k → 9%Sonoma Community Center: $11k → 9%La Luz Center: $10k → 9%Sonoma Community Center: $10k → 9%La Luz Center: $10k → 9%Sonoma Community Center: $5k → 9%Sonoma Community Center: $5k → 9%Sonoma Community Center: $5k → 9%Sonoma Community Center: $3k → 9%0%20%40%50%more need →
grant to an above-average-need area below average· circle size = grant amount

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.

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.

03Your edge
repeat funding

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.

100%of every dollar goes to organizations you’ve funded before.
$3.6M · 31 repeat orgs$13k to everyone else

And the relationships you keep tend to grow: grantees you re-up on have seen median revenue of +39% since the first grant, against +19% for the ones you funded once.

31 repeat relationships — 21 still active in FY2025, 10 since wound down.

How the two cohorts compare

Re-uppedFunded once

Organizations

31
2

Total granted

$3.6M
$13k

Median revenue growth · since first grant

+39%
+19%

Still filing today

71%
50%

New vs renewed · share of each year

In FY2025, 100% of grant dollars renewed an existing relationship; $0 went to new ones.

50%100%’17’18’19’20’21’22’23’24’25
RenewedFirst-time

Where new relationships form · theme of each grantee’s first grant

’17’18’19’20’21’22’23’24’25
Arts & CultureEducationHuman ServicesEnvironmentCommunity ImprovementHealthOther

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

  • SF
    San Francisco Playhouse
    9× · 2017–2025 · $587k · revenue +100%
  • SA
    Sonoma Arts Live
    9× · 2017–2025 · $221k · revenue +33%
  • LL
    LA LUZ CENTER
    9× · 2017–2025 · $195k · revenue +30%

Funded once

  • SONOMA VALLEY COMMUNITY HEALTH CENTER
    one grant, 2021 · $10k · revenue +19%
  • OC
    Oakes Children's Center
    one grant, 2018 · $3k · revenue -85%

Repeat = funded in two or more distinct years; growth and survival are read from each grantee’s own subsequent IRS filings.

04Your field

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.

1
Sonoma Botanical Garden
2
Silicon Valley Shakespeare

Silicon valley shakespeare is innovating the classics through unique and relevant theatrical experiences that illuminate and inspire modern audiences.

Arts & Culture
3
Sebastopol Center for the Arts

Enriching Lives Through the Arts

Arts & Culture
4
San Lorenzo Valley Mountain Community Theater
Arts & Culture
5
Sonoma Valley Museum of Art

The Sonoma Valley Museum of Art is devoted to building community around art and presents four to five exhibitions per year and offers educational programs and events, actively engaging people of all ages.

Arts & Culture
6
San Francisco Bay Area Theatre Company

Sfbatco unites artists and audiences through live theatre that is reflective of the authentic perspectives and history of the san francisco bay area.

Arts & Culture
7
Theatre Bay Area

(cont from page 1) democratic society, and invaluable as a source of personal enrichment and growth.

Arts & Culture
8
San Francisco Film Society

SFFILM is a nonprofit organization whose mission ensures independent voices in film are welcomed, heard, and given the resources to thrive. SFFILM connects and inspires audiences, students and teachers, and filmmakers through our film…

9
Marin School of the Arts Foundation

Our mission is to create opportunities for Marin School of the Arts to innovate and support a quality arts education experience for all of its students.

Education
10
The Aurora Theatre Company

Aurora Theatre Company inspires new audiences and longtime theatre lovers alike with the visceral power of live theatre. Our venues, the most intimate professional stages in the Bay Area, highlight great acting, nuanced language, and an…

Arts & Culture
11
Occidental Center for the Arts

Occidental Center for the Arts exists to provide a welcoming and accessible venue for the performing and visual arts in Sonoma County California for local regional national and international artists. our mission is to enrich our community…

Arts & Culture
12
Sonoma Mountain Institute
Environment

For reference, the grantee most central to the portfolio’s shape is Sonoma Valley Community Health Center and the most unlike its peers is Valley of the Moon Natural History Association. 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 33 years old; the field is 18. You back the established end — and your money leans older still.

THE FIELDby orgYOUR GRANTEESby number19%0%<5yr13%5%5–10yr19%14%10–20yr20%33%20–35yr16%14%35–55yr13%33%55yr+
THE FIELDby orgYOUR MONEYby value19%0%<5yr13%1%5–10yr19%11%10–20yr20%35%20–35yr16%13%35–55yr13%41%55yr+

The field is 19% startups (under 5 years old) — 0% of your grantees by number, and just 0% of your money.

Closures · last 5 years

The orgs you fund almost never close 0.0% lost their exemption, against 11% of the field you don’t fund.

orgs you fund
0.0%0/24
the rest of the field
11%
952/8,994

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.

04the grantee network

24 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 20172025, not grant rows in a single year — so this will not match the grant count on the cover. 24 of the 33 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.

0
Load-bearing (≥25% of a budget)
7
Early backer (in before they grew)
23/24
Grantees still filing
18/24
Grew since you first funded

Where your money sits — by cause, then by grantee

San Francisco Playhouse — $586,800 · Arts & CultureSan Francisco PlayhouseMarin Theatre Company — $324,400 · Arts & CultureMarin Theatre CompanyTHE EXPLORATORIUM — $230,000 · Arts & CultureTHE EXPLORATORIUMSonoma Arts Live — $221,000 · Arts & CultureSonoma Arts LiveAMERICAN CONSERVATORY THEATRE FOUNDATION — $119,500 · Arts & CultureAMERICAN CONSERVATORY THEATRE FOUNDATIONMAGIC THEATRE INC — $102,500 · Arts & CultureMAGIC THEATRE INC+4 more — $141,500 · Arts & Culture+4 moreCinnabar Theater — $317,000 · OtherCinnabar TheaterSonoma Valley Education Found — $205,000 · OtherSonoma Valley Education…Mission Science Workshop — $108,000 · OtherMission Science Worksho…Sonoma Valley Authors FestivalMarin — $42,500 · OtherSonoma Valley Authors F…Reading Partners of the SF Bay Area — $39,000 · Other+6 more — $60,000 · Other+6 moreBROOKS SCHOOL — $160,000 · EducationBROOKS SCHOOLSonoma Valley Mentoring Alliance — $150,000 · EducationSonoma Valley M…CHINESE AMERICAN INTERNATIONAL SCHOOL — $90,000 · EducationCHINESE AMERICA…UNIVERSITY OF CALIFORNIA SAN FRANCISCO FOUNDATION — $65,000 · EducationUNIVERSITY OF C…Sonoma Speaker Series — $17,500 · Education+1 more — $5,000 · EducationLA LUZ CENTER — $195,000 · Human ServicesLA LUZ CEN…SONOMA COMMUNITY CENTER — $84,000 · Human ServicesSONOMA COM…COMPASS FAMILY SERVICES — $50,000 · Human ServicesCOMPASS FA…VALLEY OF THE MOON NATURAL HISTORY ASSOCIATION — $152,500 · EnvironmentSONOMA VALLEY HOSPITAL FOUNDATION — $100,000 · HealthSAN FRANCISCO LESBIAN GAY BISEXUAL TRANSGENDER COMMUNITY CENTER — $90,000 · Community Improvement
Arts & Culture$1,725,700Other$771,500Education$487,500Human Services$329,000Environment$152,500Health$100,000Community Improvement$90,000

Each org by its size and your share of it — top-left is where you’re load-bearing

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ your share of their budgetSan Francisco Playhouse — $586,800 over 9y, 2.6% of budgetMarin Theatre Company — $324,400 over 8y, 2.6% of budgetTHE EXPLORATORIUM — $230,000 over 9y, 0.1% of budgetSonoma Arts Live — $221,000 over 9y, 24% of budgetLA LUZ CENTER — $195,000 over 9y, 1.7% of budgetBROOKS SCHOOL — $160,000 over 9y, 0.1% of budgetVALLEY OF THE MOON NATURAL HISTORY ASSOCIATION — $152,500 over 9y, 3.0% of budgetSonoma Valley Mentoring Alliance — $150,000 over 9y, 2.8% of budgetAMERICAN CONSERVATORY THEATRE FOUNDATION — $119,500 over 9y, 0.1% of budgetMAGIC THEATRE INC — $102,500 over 7y, 1.9% of budgetSONOMA VALLEY HOSPITAL FOUNDATION — $100,000 over 5y, 1.2% of budgetSAN FRANCISCO LESBIAN GAY BISEXUAL TRANSGENDER COMMUNITY CENTER — $90,000 over 9y, 0.3% of budgetCHINESE AMERICAN INTERNATIONAL SCHOOL — $90,000 over 3y, 0.1% of budgetSONOMA COMMUNITY CENTER — $84,000 over 9y, 0.9% of budgetUNIVERSITY OF CALIFORNIA SAN FRANCISCO FOUNDATION — $65,000 over 9y, 0.0% of budgetSebastiani Theatre Foundation Inc — $56,000 over 7y, 1.3% of budgetCOMPASS FAMILY SERVICES — $50,000 over 9y, 0.0% of budgetSmuin Ballet — $45,000 over 5y, 0.3% of budgetSonoma Plein Air Foundation — $32,500 over 7y, 1.9% of budgetSonoma Speaker Series — $17,500 over 3y, 2.2% of budgetSONOMA VALLEY COMMUNITY HEALTH CENTER — $10,000 over 1y, 0.1% of budgetValley of the Moon Music Festival — $8,000 over 2y, 1.9% of budget826 Valencia — $5,000 over 2y, 0.1% of budgetOakes Children's Center — $2,500 over 1y, 0.1% of budget
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 San Francisco Playhouse
  • Who funds Marin Theatre Company
  • Who funds THE EXPLORATORIUM
  • Who funds Sonoma Arts Live
  • Who funds LA LUZ CENTER
  • Who funds BROOKS SCHOOL
  • Who funds VALLEY OF THE MOON NATURAL HISTORY ASSOCIATION
  • Who funds Sonoma Valley Mentoring Alliance
  • Who funds AMERICAN CONSERVATORY THEATRE FOUNDATION
  • Who funds MAGIC THEATRE INC
  • Who funds SONOMA VALLEY HOSPITAL FOUNDATION
  • Who funds SAN FRANCISCO LESBIAN GAY BISEXUAL TRANSGENDER COMMUNITY CENTER
  • Who funds CHINESE AMERICAN INTERNATIONAL SCHOOL
  • Who funds SONOMA COMMUNITY CENTER
  • Who funds UNIVERSITY OF CALIFORNIA SAN FRANCISCO FOUNDATION
  • Who funds Sebastiani Theatre Foundation Inc
  • Who funds COMPASS FAMILY SERVICES
  • Who funds Smuin Ballet
  • Who funds Sonoma Plein Air Foundation
  • Who funds Sonoma Speaker Series
  • Who funds SONOMA VALLEY COMMUNITY HEALTH CENTER
  • Who funds Valley of the Moon Music Festival
  • Who funds 826 Valencia
  • Who funds Oakes Children's Center

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.

McNabb FoundationDE27.5× affinity11 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: McNabb Foundation · Marin Community Foundation · Sonoma County Community Foundation · Simon Blattner Family Foundation · The Vadasz Family Foundation · Gaia Fund · The San Francisco Foundation · Sanderson Family Foundation · John Christopher Bunting Foundation · Khr McNeely Family Foundation · Jewish Community Federation of San Francisco the Peninsula Marin & Sonoma · The Ayco Charitable 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 Clay Foundation - West 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.

2024
202122232425
no gov · 10%2%6%14%25%your share of their income ↑0%10%20%30%40%share of the org’s income from government
    no gov moneyreceives it· size = income
    1get no government money at all
    8report government grants on their 990 we could not trace to a source (not plotted)
    0rely on government for over half their income
    ⤢ axis zoomed · 0–40%
    typical government reliance, FY2025

    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.

    On method. Every financial figure here is read directly from IRS e-file XML — your own 990/990-PF and the multi-year returns of the 33 grantees we resolved across every year we hold, several hundred filings in all (a different count from the grant rows on the cover, which are one fiscal year)— each linked to its source. Grantee achievements and outcomes are each organization’s own program-service reporting (Form 990, Part III); we read these as association with sustained funding — the foundation is one of several forces — suppress low-confidence name matches rather than guess, and say so where a figure rests on a single grant or filing. Not everything on this page is a filed figure, and the difference matters. Filed is what you reported on your return. Official is another government record about an organization, such as a federal award or a charity register, joined by name where no shared identifier exists. Resolved is an identity we worked out where the filing named a recipient without an EIN, kept only above a measured confidence threshold. Computed is arithmetic over those, like themes, portfolio clusters and co-funder strength. Context is a statistic about a place rather than about an organization, which is what the need overlay is: it describes the area a grantee’s address sits in, not where its work lands. Inferred is drawn by a model from text, like the partnerships read out of public news and organization websites. Each is labeled where it appears. How we build these →

    Generated from your IRS Form 990-PF e-file return for fiscal year 2025, released 2025. Filings run roughly 12–24 months behind; figures are dated accordingly.

    Source object · view filing

    More from the funding graph