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Plinth

· Private foundation

Cox Family Fund

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.

$173k
Granted FY2025still arriving
40
Grants FY2025still arriving
14
States reached
$50k
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.

Environment$1.2MArts & Culture$677kEducation$377kHealth$293kPhilanthropy$97kCivil Rights$66kReligion$43kInternational$42kOther$0
02FY2025 · 40 grants

Where the money goes

Your grants by size, and where they go.

By grant size · FY2025

  • Under $10k36 grants · $58k
  • $10k–50k3 grants · $65k
  • $50k–250k1 grant · $50k
$1,000
Median grant
14
States reached
$3.2M
Total assets
Largest grants
RecipientAmount
ENVIRONMENTAL INVESTIGATION AGENCY$50,000
COMMUNITY LAND TRUST ASSOCIATION OF WEST MARIN$30,120
WORLD RESOURCES INSTITUTE$20,000
STANFORD UNIVERSITY$15,000
PLANNED PARENTHOOD FEDERATION OF AMERICA INC$5,000
LARKIN STREET YOUTH SERVICES$5,000
SUSTAINABLE CONSERVATION$5,000
ALZHEIMER'S ASSOCIATION$5,000
GRACE CATHEDRAL$3,500
PARTNERSHIP FOR A HEALTHIER AMERICA$3,000
CALIFORNIA TROUT INC$3,000
WORLD NEIGHBORS INC$3,000
Individual grant recipient$2,000
GIFFORDS LAW CENTER TO PREVENT GUN VIOLENCE$2,000
REGENTS OF THE UNIVERSITY OF MICHIGAN$2,000
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 (FY22–25, $12k) land where the poverty rate runs at 11%, against an area that typically sits at 10%. 100% of those dollars go to grantees based in above-average-need neighborhoods. Most of your grants land in higher-need ZIPs.

area typical 10%CAMP KALEIDOSCOPE: $590 → 12%CAMP KALEIDOSCOPE: $500 → 12%LARKIN STREET YOUTH SERVICES: $5k → 10%LARKIN STREET YOUTH SERVICES: $5k → 10%LARKIN STREET YOUTH: $1k → 10%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.

Which US states your grants reach

ME
ID
MN
IL
MI
NY
MA
OH
CT
CA
UT
VA
KS
TN
DC
OK
AL
TX

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.

97%of every dollar goes to organizations you’ve funded before.
$2.5M · 67 repeat orgs$76k to everyone else

And the relationships you keep tend to grow: grantees you re-up on have seen median revenue of +34% since the first grant, against +10% for the ones you funded once.

67 repeat relationships — 33 still active in FY2025, 34 since wound down; 5 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

67
14

Total granted

$2.5M
$40k

Median revenue growth · since first grant

+34%
+10%

Still filing today

78%
71%

New vs renewed · share of each year

In FY2025, 77% of grant dollars renewed an existing relationship; $36k 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 & CultureHealthEducationInternationalEnvironmentFood & NutritionOther

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

  • EARTHJUSTICE
    7× · 2017–2023 · $437k · revenue +82%
  • EI
    ENVIRONMENTAL INVESTIGATION AGENCY
    9× · 2017–2025 · $303k · revenue +65%
  • SF
    SAN FRANCISCO BALLET ASSOCIATION
    6× · 2017–2023 · $303k · revenue +37%

Funded once

  • UT
    U T HEALTH
    one grant, 2017 · $5k
  • COMMUNITY INITIATIVESgraduated
    one grant, 2022 · $5k · revenue +50%
  • MD
    M D ANDERSON SERVICES CORPORATION
    one grant, 2020 · $5k · revenue +10%

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
The Union of Concerned Scientists Inc

The union of concerned scientists puts rigorous, independent science into action, developing solutions and advocating for a healthy, safe, and just future.

International
2
Massachusetts Institute of Technology

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.

Education
3
American Association for the Advancement of Science

Advance science, engineering, and innovation throughout the world for the benefit of all. the world's largest multidisciplinary scientific society and a leading publisher of cutting-edge research through its science family of journals,…

Science & Tech
4
United States Naval Institute

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.

5
Ucsf Foundation Investment Company

The organization provides professional investment management services for endowed gifts and financial assets entrusted to the ucsf foundation.

Education
6
Boston Architectural College

The bac is committed to provide excellence in design education grounded in practice and accessible to diverse communities.

7
Association of California School Administrators

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.

8
The Uc Davis Foundation

The mission of the uc davis foundation is to secure, steward and manage private gifts for uc davis.

Education
9
The Water Research Foundation

The purpose of the water research foundation (wrf) is a definitive research organization to advance the science of all things water to better meet the evolving needs of its subscribers and the water sector. to engage exclusively in…

Environment
10
American Gas Association

American gas association's (the association) mission is to develop and advocate for informed, innovative, and durable policy that fulfills our nation's energy needs, environmental aspirations and economic potential. we are committed to…

11
Ucla Foundation

The ucla foundation is the giving, receiving, and investing arm of the ucla campus. the foundation enables private donors to help build, sustain and advance one of the world's finest academic and research institutions. private philanthropy…

Education
12
Uc Santa Barbara Foundation

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…

Education

For reference, the grantee most central to the portfolio’s shape is The San Francisco Foundation and the most unlike its peers is Berkeley Repertory Theatre. 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.

← shrinkinggrowing →↓ leaning in → pulling backsteadyEnvironmental Conservation …Orchestra and Ensemble Perf…Community FoundationsHealth Access Advocacy and …Affordable Housing Developm…Christian Missionary Organi…Food Banks and PantriesCommunity Arts CentersPolicy Research and AdvocacyChristian Youth CampsPublic Library OperationsCancer Support ServicesImmigrant Worker SupportAnimal Rescue and ShelterFaith-Based Liberal Arts Co…Independent K-12 SchoolsPregnancy Support Services
the sector your giving your giving is ahead of the sector the sector’s ahead of you· dot size = how much the theme matters to each side
Ordered by the change in your giving — leaning in on top, pulling back at the bottom. The bar between the two dots is how out of step you are with the sector. Hover any row for detail.

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 14. You back the established end — and your money leans older still.

THE FIELDby orgYOUR GRANTEESby number24%1%<5yr15%3%5–10yr20%11%10–20yr17%21%20–35yr11%30%35–55yr13%34%55yr+
THE FIELDby orgYOUR MONEYby value24%0%<5yr15%0%5–10yr20%1%10–20yr17%23%20–35yr11%27%35–55yr13%48%55yr+

The field is 24% startups (under 5 years old) — 1% 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 14% of the field you don’t fund.

orgs you fund
0.0%0/72
the rest of the field
14%
26,003/186,906

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

70 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. 70 of the 90 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)
12
Early backer (in before they grew)
70/70
Grantees still filing
54/70
Grew since you first funded

Where your money sits — by cause, then by grantee

SAN FRANCISCO BALLET ASSOCIATION — $302,676 · Arts & CultureSAN FRANCISCO BALLET ASSOC…SAN FRANCISCO SYMPHONY — $170,895 · Arts & CultureSAN FRANCISCO SYMPHONYBERKELEY REPERTORY THEATRE — $141,741 · Arts & CultureBERKELEY REPERTORY THEATRECORPORATION OF THE FINE ARTS MUSEUMS — $30,000 · Arts & Culture+5 more — $29,364 · Arts & CultureEARTHJUSTICE — $437,317 · EnvironmentEARTHJUSTICESustainable Conservation — $80,150 · EnvironmentSustainable Conservatio…AMERICAN RIVERS INC — $42,050 · EnvironmentAMERICAN RIVERS INCPoint Reyes National Seashore Association — $30,000 · Environment+2 more — $17,049 · EnvironmentENVIRONMENTAL INVESTIGATION AGENCY — $303,399 · InternationalENVIRONMENTAL INVES…WORLD RESOURCES INSTITUTE — $157,224 · InternationalWORLD RESOURCES INS…+5 more — $28,660 · International+5 moreTHE NATURE CONSERVANCY KS — $91,041 · OtherTHE NATURE CONSERVA…Individual grant recipient — $52,500 · OtherIndividual grant re…PROTESTANT EPISCOPAL CHURCH IN THE DIOCESE OF CALIFORNIA — $42,875 · OtherPROTESTANT EPISCOPA…TRUST FOR WOMEN FOUNDATION — $37,500 · OtherTRUST FOR WOMEN FOU…AMERICAN CIVIL LIBERTIES UNION FOUNDATION INC — $60,000 · OtherAMERICAN CIVIL LIBE…MARIN AGRICULTURAL LAND TRUST — $25,000 · OtherCOMMUNITY LAND TRUST ASSOCIATION OF WEST MARIN — $30,120 · OtherCOMMUNITY LAND TRUS…+37 more — $145,018 · Other+37 moreTHE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY — $255,921 · EducationTHE BOARD OF…MARIN ACADEMY — $15,500 · Education+9 more — $36,015 · Education+9 morePLANNED PARENTHOOD FEDERATION OF AMERICA INC — $131,669 · HealthPLANNED P…ALZHEIMER'S DISEASE & RELATED DISORDERS ASSOCIATION INC — $42,500 · HealthALZHEIMER…ALZHEIMER'S DISEASE RESEARCH FOUNDATION — $37,500 · HealthALZHEIMER…Planned Parenthood Shasta-Diablo Inc — $25,000 · HealthPlanned P…+5 more — $16,569 · Health+5 moreTHE SAN FRANCISCO FOUNDATION — $50,000 · PhilanthropyTHE WEST MARIN FUND — $7,000 · PhilanthropyCOMMUNITY INITIATIVES — $5,000 · PhilanthropyACTBLUE CHARITIES INC — $2,500 · Philanthropy
Arts & Culture$674,676Environment$606,566International$489,283Other$484,054Education$307,436Health$253,238Philanthropy$64,500

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

25%50%75%100%$100k$1.0M$10M$100Mgrantee revenue →↑ your share of their budgetEARTHJUSTICE — $437,317 over 7y, 0.1% of budgetENVIRONMENTAL INVESTIGATION AGENCY — $303,399 over 9y, 0.9% of budgetSAN FRANCISCO BALLET ASSOCIATION — $302,676 over 6y, 0.1% of budgetTHE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY — $255,921 over 9y, 0.0% of budgetSAN FRANCISCO SYMPHONY — $170,895 over 8y, 0.0% of budgetWORLD RESOURCES INSTITUTE — $157,224 over 9y, 0.0% of budgetBERKELEY REPERTORY THEATRE — $141,741 over 6y, 0.3% of budgetPLANNED PARENTHOOD FEDERATION OF AMERICA INC — $131,669 over 6y, 0.0% of budgetSustainable Conservation — $80,150 over 9y, 0.3% of budgetAMERICAN CIVIL LIBERTIES UNION FOUNDATION INC — $60,000 over 6y, 0.0% of budgetTHE SAN FRANCISCO FOUNDATION — $50,000 over 1y, 0.0% of budgetALZHEIMER'S DISEASE & RELATED DISORDERS ASSOCIATION INC — $42,500 over 6y, 0.0% of budgetAMERICAN RIVERS INC — $42,050 over 8y, 0.0% of budgetALZHEIMER'S DISEASE RESEARCH FOUNDATION — $37,500 over 5y, 0.0% of budgetCORPORATION OF THE FINE ARTS MUSEUMS — $30,000 over 6y, 0.0% of budgetPoint Reyes National Seashore Association — $30,000 over 5y, 0.4% of budgetMARIN AGRICULTURAL LAND TRUST — $25,000 over 5y, 0.1% of budgetPlanned Parenthood Shasta-Diablo Inc — $25,000 over 5y, 0.0% of budgetMARIN ACADEMY — $15,500 over 6y, 0.0% of budgetAMAZON CONSERVATION ASSOCIATION — $15,034 over 6y, 0.2% of budgetWORLD NEIGHBORS INC — $13,060 over 6y, 0.1% of budgetKQED INC — $11,300 over 8y, 0.0% of budgetLarkin Street Youth Services — $11,060 over 3y, 0.0% of budgetGUTHRIE THEATER FOUNDATION — $11,000 over 7y, 0.0% of budgetUniversity of Michigan — $11,000 over 4y, 2.4% of budgetMARET SCHOOL INC — $9,500 over 3y, 0.0% of budgetMEDECINS SANS FRONTIERES USA INC — $8,500 over 7y, 0.0% of budgetCALIFORNIA TROUT INC — $7,580 over 6y, 0.0% of budgetNational Center for Science Education — $7,500 over 6y, 0.1% of budgetPOMONA COLLEGE — $7,000 over 7y, 0.0% of budgetPhysicians Committee for Responsible Med — $7,000 over 7y, 0.0% of budgetTHE WEST MARIN FUND — $7,000 over 7y, 0.2% of budgetALZAR SCHOOL INC — $6,000 over 3y, 0.1% of budgetPAGE EDUCATION FOUNDATION — $6,000 over 6y, 0.1% of budgetPartnership for a Healthier America Inc — $5,500 over 2y, 0.1% of budgetCOMMUNITY INITIATIVES — $5,000 over 1y, 0.0% of budgetM D ANDERSON SERVICES CORPORATION — $5,000 over 1y, 0.0% of budgetCHRONICLE SEASON OF SHARING FUND — $5,000 over 1y, 0.0% of budgetSAN DOMENICO SCHOOL — $4,500 over 5y, 0.0% of budgetALIGHT — $4,000 over 4y, 0.0% of budgetSAN FRANCISCO MUSEUM OF MODERN ART — $4,000 over 4y, 0.0% of budgetSOUTHERN POVERTY LAW CENTER INC — $4,000 over 4y, 0.0% of budgetOHIO STATE UNIVERSITY FOUNDATION — $4,000 over 2y, 0.0% of budgetThe Center for Investigative Reporting formrly Foundation for National Progress — $3,000 over 3y, 0.0% of budgetOXFAM-AMERICA INC — $3,000 over 3y, 0.0% of budgetPARTNERS IN HEALTH — $2,569 over 2y, 5.1% of budgetMary's Center for Maternal and Child Care Inc — $2,500 over 2y, 0.0% of budgetACTBLUE CHARITIES INC — $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 EARTHJUSTICE
  • Who funds ENVIRONMENTAL INVESTIGATION AGENCY
  • Who funds SAN FRANCISCO BALLET ASSOCIATION
  • Who funds THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY
  • Who funds SAN FRANCISCO SYMPHONY
  • Who funds WORLD RESOURCES INSTITUTE
  • Who funds BERKELEY REPERTORY THEATRE
  • Who funds PLANNED PARENTHOOD FEDERATION OF AMERICA INC
  • Who funds Sustainable Conservation
  • Who funds AMERICAN CIVIL LIBERTIES UNION FOUNDATION INC
  • Who funds THE SAN FRANCISCO FOUNDATION
  • Who funds ALZHEIMER'S DISEASE & RELATED DISORDERS ASSOCIATION INC
  • Who funds AMERICAN RIVERS INC
  • Who funds ALZHEIMER'S DISEASE RESEARCH FOUNDATION
  • Who funds COMMUNITY LAND TRUST ASSOCIATION OF WEST MARIN
  • Who funds CORPORATION OF THE FINE ARTS MUSEUMS
  • Who funds Point Reyes National Seashore Association
  • Who funds MARIN AGRICULTURAL LAND TRUST
  • Who funds Planned Parenthood Shasta-Diablo Inc
  • Who funds MARIN ACADEMY
  • Who funds AMAZON CONSERVATION ASSOCIATION
  • Who funds WORLD NEIGHBORS INC
  • Who funds KQED INC
  • Who funds Larkin Street Youth Services
  • Who funds GUTHRIE THEATER FOUNDATION
  • Who funds University of Michigan
  • Who funds MARET SCHOOL INC
  • Who funds MEDECINS SANS FRONTIERES USA INC
  • Who funds CALIFORNIA TROUT INC
  • Who funds National Center for Science Education
  • Who funds POMONA COLLEGE
  • Who funds Physicians Committee for Responsible Med
  • Who funds THE WEST MARIN FUND

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.

Marin Community FoundationCA26.9× affinity12 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Marin Community Foundation · The San Francisco Foundation · Silicon Valley Community Foundation · Jewish Community Federation of San Francisco the Peninsula Marin & Sonoma · Greater Washington Community Foundation · Patty and Jack Wright Foundation · The Springcreek Foundation · Tides Foundation · United Way Worldwide · The Blackbaud Giving Fund · Gs Donor Advised Philanthropy Fund for Wealth Management Inc · Sonoma County Community 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 Cox Family Fund 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 · 30%1%3%6%10%your share of their income ↑0%25%50%75%100%share of the org’s income from governmentmedian 46%
  • Woods Hole Oceanographic Institution63% of income from government
  • World Neighbors Inc46% of income from government
  • President and Fellows of Harvard College7% of income from government
  • Oxfam-America Inc0% of income from government
no gov moneyreceives it· size = income
3get no government money at all
14report government grants on their 990 we could not trace to a source (not plotted)
1rely on government for over half their income
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 90 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