Skip to content
Plinth

· Private foundation

The Duncan Great Cause Foundation

Its FY2025 filing reports that it accepted unsolicited grant applications.

$78k
Granted FY2025still arriving
14
Grants FY2025still arriving
3
States reached
$40k
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 FY20202025.

Arts & Culture$261kEducation$82kHousing & Shelter$35kHealth$12kPhilanthropy$8kInternational$7kFood & Nutrition$3kRecreation & Sports$1kOther$0
02FY2025 · 14 grants

Where the money goes

Your grants by size, and where they go.

By grant size · FY2025

  • Under $10k12 grants · $27k
  • $10k–50k2 grants · $50k
$2,000
Median grant
3
States reached
$1.5M
Total assets
Largest grants
RecipientAmount
THE HUNTINGTON LIBRARY$40,000
CAL STATE LA UNIVERSITY AUXILIARY SERVICES INC$10,350
JOHN RAITT AWARDS FOR YOUTH (JRAY)$9,000
MUSEIQUE$5,000
CALTECH$4,000
ASCENCIA$2,650
SAN MARINO ROTARY CHARITIES$2,000
SAN MARINO MOTOR CLASSIC$1,500
MONROE INSTITUTE$1,000
THE ROTARY FOUNDATION$700
MAASAI CULTURAL CONSERVATION FOUNDATION$500
Individual grant recipient$495
EAST MEETS WEST PARENT EDUCATION CLUB$250
SAN MARINO SCHOOLS FOUNDATION$103
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:

Dollar for dollar, your grants (FY20–25) land where the poverty rate runs at 14%, against an area that typically sits at 11%. 92% of your dollars go to grantees based in above-average-need neighborhoods. Most of your grants land in higher-need ZIPs.

area typical 11%The Huntington Library: $52k → 14%Northwestern University: $1k → 14%Monroe Institute: $1k → 13%THE HUNTINGTON LIBRARY: $40k → 14%MONROE INSTITUTE: $1k → 13%JOHN RAITT AWARDS FOR YOUTH (JRAY): $9k → 10%The Huntington Library: $35k → 14%The Rotary Foundation: $4k → 14%JOHN RAITT AWARDS FOR YOUTH JRAY: $5k → 10%HUNTINGTION LIBRARY: $28k → 14%Rotary Foundation: $1k → 14%John Raitt Awards for Youth JRAY: $5k → 10%The Huntington Library: $27k → 14%Rotery Foundation: $1k → 14%John Raitt Awards for Youth JRAY: $5k → 10%The Huntington Library: $25k → 14%John Raitt Awards for Youth JRAY: $3k → 10%San Marino Schools Foundation: $2k → 14%John Raitt Awards for Youth JRAY: $3k → 10%SAN MARINO ROTARY CHARITIES: $2k → 14%SAN MARINO MOTOR CLASSIC: $2k → 14%San Marino Motor Classic: $1k → 14%CHINESE CLUB OF SAN MARINO: $1k → 14%Cal Tech: $4k → 14%CALTECH: $4k → 14%CHILDREN HOSPITAL: $1k → 14%MUSEIQUE: $5k → 14%KPCC: $2k → 14%Center Theatre Group: $3k → 14%Center Theatre Group: $3k → 14%Ascencia: $9k → 14%ASCENCIA: $6k → 14%Ascencia: $4k → 14%Ascencia: $3k → 14%ASCENCIA: $3k → 14%Ascencia: $2k → 14%Pasadena Showcase: $5k → 14%FRIENDS IN DEED: $4k → 14%Friends In Deed: $2k → 14%PPPSGV: $2k → 14%CAL STATE LA UNIVERSITY AUXILIARY SERVICES INC: $10k → 14%LA Food Bank: $1k → 14%Otisedu: $26k → 14%Otisedu: $25k → 14%Otisedu: $5k → 14%Museique Pasadena: $3k → 14%Museique Pasadena: $3k → 14%Museique Pasadena: $1k → 14%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.

89%of every dollar goes to organizations you’ve funded before.
$361k · 20 repeat orgs$43k to everyone else

20 repeat relationships — 9 still active in FY2025, 11 since wound down; 4 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

20
10

Total granted

$361k
$35k

Median revenue growth · since first grant

+35%
+69%

Still filing today

50%
40%

New vs renewed · share of each year

In FY2025, 90% of grant dollars renewed an existing relationship; $8k went to new ones.

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

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

’20’21’22’23’24’25
Arts & CultureEducationRecreation & SportsPhilanthropyHousing & ShelterHealthOther

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

  • HE
    HENRY E HUNTINGTON LIBRARY AND ART GALLERY
    5× · 2021–2025 · $179k · revenue +48%
  • A
    ASCENCIA
    6× · 2020–2025 · $27k · revenue +63%
  • CS
    CALIFORNIA STATE UNIVERSITY LOS ANGELES AUXILIARY SERVICES INC
    2× · 2020–2025 · $11k · revenue +36%

Funded once

  • HL
    HUNTINGTION LIBRARY
    one grant, 2020 · $28k
  • CH
    CHILDREN HOSPITAL
    one grant, 2020 · $1k
  • CC
    CHINESE CLUB OF SAN MARINOgraduated
    one grant, 2020 · $1k · revenue +129%

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
University of Southern California

The central mission of the university of southern california is the development of human beings and society as a whole through the cultivation and enrichment of the human mind and spirit. the principal means by which our mission is…

Education
2
California Institute of Contemporary Art
3
San Francisco Museum of Modern Art

See schedule osfmoma believes the art of our time is vital and shares it with passion and purpose, and that art and the creative process can open minds and help build a better world. for that reason, we assemble unparalleled collections,…

Arts & Culture
4
Museum Associates

To serve the public through the collection, conservation, exhibition and interpretation of significant works of art from a broad range of cultures and historical periods, and through translation of these collections into meaningful…

Arts & Culture
5
Museum of Contemporary Art San Diego

The museum of contemporary art san diego invites all audiences to experience our world, our region, and ourselves through the prism of contemporary art.

Arts & Culture
6
Monterey Museum of Art

The monterey museum of art cultivates curiosity in the visual arts and engages community with the diversity of california art - past, present, and future.

Arts & Culture
7
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
8
Armand Hammer Museum of Art and Cultural Center Inc

The hammer museum at ucla believes in the promise of art and ideas to illuminate our lives and build a more just world.

Arts & Culture
9
The California Endowment
Philanthropy
10
The Stanford Theatre Foundation
11
San Jose Museum of Art Association

Nurture empathy and connection by engaging communities with socially relevant contemporary art

Arts & Culture
12
Museum of Modern Art

The Museum of Modern Art is a private, non-profit institution chartered by the State of New York Department of Education in 1929 to foster public awareness of modern and contemporary art. (Continued in Schedule O)

Arts & Culture

For reference, the grantee most central to the portfolio’s shape is Chinese Club of San Marino and the most unlike its peers is Henry E Huntington Library and Art Gallery. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.

04the grantee network

18 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. 18 of the 35 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)
4
Early backer (in before they grew)
18/18
Grantees still filing
13/18
Grew since you first funded

Where your money sits — by cause, then by grantee

HENRY E HUNTINGTON LIBRARY AND ART GALLERY — $179,000 · Arts & CultureHENRY E HUNTINGTON LIBRARY AND ART GALLERY+6 more — $15,020 · Arts & Culture+6 moreOtisedu — $55,250 · OtherOtiseduJOHN RAITT AWARDS FOR YOUTH (JRAY) — $30,000 · OtherJOHN RAITT AWARDS FOR YOUTH (JRAY)HUNTINGTION LIBRARY — $28,000 · OtherHUNTINGTION LIBRARYFRIENDS IN DEED — $7,900 · OtherIndividual grant recipient — $7,800 · OtherIndividual grant recipient — $6,495 · Other+11 more — $13,726 · Other+11 moreASCENCIA — $27,259 · Housing & ShelterCALIFORNIA STATE UNIVERSITY LOS ANGELES AUXILIARY SERVICES INC — $11,350 · EducationTHE CALTECH Y — $8,000 · EducationSan Marino Schools Foundation — $4,203 · EducationTHE MONROE INSTITUTE — $2,500 · EducationTHE ROTARY FOUNDATION OF ROTARY INTERNATIONAL — $5,950 · InternationalSAN MARINO MOTOR CLASSIC — $2,875 · PhilanthropySAN MARINO ROTARY CHARITIES — $2,000 · PhilanthropyNorthwestern University — $1,000 · Recreation & SportsTHE LOS ANGELES DODGERS FOUNDATION — $500 · Recreation & SportsCHOC FOUNDATION — $759 · Health
Arts & Culture$194,020Other$149,171Housing & Shelter$27,259Education$26,053International$5,950Philanthropy$4,875Recreation & Sports$1,500Health$759

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 budgetHENRY E HUNTINGTON LIBRARY AND ART GALLERY — $179,000 over 5y, 0.0% of budgetASCENCIA — $27,259 over 6y, 0.2% of budgetCALIFORNIA STATE UNIVERSITY LOS ANGELES AUXILIARY SERVICES INC — $11,350 over 2y, 0.0% of budgetTHE CALTECH Y — $8,000 over 2y, 0.4% of budgetTHE ROTARY FOUNDATION OF ROTARY INTERNATIONAL — $5,950 over 3y, 0.0% of budgetCENTER THEATRE GROUP OF LOS ANGELES — $5,200 over 2y, 0.0% of budgetSan Marino Schools Foundation — $4,203 over 6y, 0.1% of budgetSAN MARINO MOTOR CLASSIC — $2,875 over 2y, 0.2% of budgetSOUTHERN CALIFORNIA PUBLIC RADIO — $2,720 over 3y, 0.0% of budgetTHE MONROE INSTITUTE — $2,500 over 3y, 0.0% of budgetSAN MARINO ROTARY CHARITIES — $2,000 over 1y, 1.7% of budgetCHINESE CLUB OF SAN MARINO — $1,100 over 1y, 0.1% of budgetNorthwestern University — $1,000 over 1y, 0.0% of budgetCHOC FOUNDATION — $759 over 2y, 0.0% of budgetTHE PASADENA PLAYHOUSE STATE THEATRE OF CALIFORNIA INC — $500 over 1y, 0.0% of budgetMaasai Cultural Conservation Foundation — $500 over 1y, 0.4% of budgetTHE LOS ANGELES DODGERS FOUNDATION — $500 over 1y, 0.0% 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 HENRY E HUNTINGTON LIBRARY AND ART GALLERY
  • Who funds ASCENCIA
  • Who funds CALIFORNIA STATE UNIVERSITY LOS ANGELES AUXILIARY SERVICES INC
  • Who funds THE CALTECH Y
  • Who funds THE ROTARY FOUNDATION OF ROTARY INTERNATIONAL
  • Who funds CENTER THEATRE GROUP OF LOS ANGELES
  • Who funds MuseIque
  • Who funds San Marino Schools Foundation
  • Who funds SAN MARINO MOTOR CLASSIC
  • Who funds SOUTHERN CALIFORNIA PUBLIC RADIO
  • Who funds THE MONROE INSTITUTE
  • Who funds SAN MARINO ROTARY CHARITIES
  • Who funds CHINESE CLUB OF SAN MARINO
  • Who funds Northwestern University
  • Who funds CHOC FOUNDATION
  • Who funds THE PASADENA PLAYHOUSE STATE THEATRE OF CALIFORNIA INC
  • Who funds Maasai Cultural Conservation Foundation
  • Who funds THE LOS ANGELES DODGERS FOUNDATION

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.

Jcs Family FoundationUT13.6× affinity4 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Jcs Family Foundation · Harvey and Ellen Knell Foundation · The Rose Hills Foundation · Pasadena Community Foundation · The Ralph M Parsons Foundation · Weingart Foundation · California Community Foundation · Charities Aid Foundation America · Vanguard Charitable Endowment Program · National Philanthropic Trust · The Bank of America Charitable Foundation Inc · Donor Advised Charitable Giving Inc

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 Duncan Great Cause 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.

2024
202122232425
no gov · 00%0%1%3%5%your share of their income ↑0%5%10%15%20%share of the org’s income from government
    no gov moneyreceives it· size = income
    0get 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 · 0–20%
    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.

    05Through Plinth

    Warm introductions · Powered by PlinthPlus

    How do I get to The Duncan Great Cause Foundation?

    Find your warmest path to The Duncan Great Cause 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.

    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 35 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