The California State Capitol

Form 990-PFTax year 2025EIN 82-3709895

The Duncan Great Cause Foundation

A private foundation in San Marino, CA. Its return for tax year 2025 lists 14 grants and $77,548 paid in grants.

Tax year 2025 (period ending Dec 31, 2025), read from the IRS e-file on Nov 11, 2026. Returns reach the IRS 5 to 18 months after the year they describe.

How to apply

Accepts applications

The return gives an application contact and rules, as below.

Contact person
On file
Phone
On file
Mailing address
On file
Form and materials
On file
Deadlines
December 31
Restrictions
Libraries, schools, hospitals and other non-profit organizations

Contact person, phone, mailing address and application materials on file. See them with a plan.

Assets and giving by year

6 returns on file
Grants paid by tax year. The latest year is in blue.
  • Tax year 2025

    $77,548

    Grants listed
    14
    Assets, end of year
    $1,510,207
  • Tax year 2024

    $81,380

    Grants listed
    17
    Assets, end of year
    $1,537,703
  • Tax year 2023

    $83,550

    Grants listed
    13
    Assets, end of year
    $1,375,795
  • Tax year 2022

    $69,659

    Grants listed
    13
    Assets, end of year
    $1,121,238
  • Tax year 2021

    $45,400

    Grants listed
    17
    Assets, end of year
    $1,130,211
  • Tax year 2020

    $52,050

    Grants listed
    13
    Assets, end of year
    $1,003,346

Grants paid in 2025

14 grants, largest first

As listed on the return.

  1. The Huntington LibrarySan Marino, CA

    To support enrichment, education and stewardship of the extensive gardens, library and art collections and provide educational opportunities and public programs.

    $40,000
  2. Cal State La University Auxiliary Services IncLos Angeles, CA

    Education

    $10,350
  3. John Raitt Awards for Youth (jray)Costa Mesa, CA

    To support high school performing arts education in los angeles, orange, riverside and inland empire counties of california.

    $9,000
  4. MuseiquePasadena, CA

    Support for local art programs

    $5,000
  5. CaltechPasadena, CA

    Education

    $4,000
  6. AscenciaGlendale, CA

    To provide shelter to families and individuals and outreach/support to assist with job seeking, addiction and mental illness.

    $2,650
  7. San Marino Rotary CharitiesSan Marino, CA

    Community outreach

    $2,000
  8. San Marino Motor ClassicSan Marino, CA

    Community benefit

    $1,500
  9. Monroe InstituteFaber, VA

    Education

    $1,000
  10. The Rotary FoundationEvanston, IL

    Rotary international programs

    $700
  11. Maasai Cultural Conservation FoundationS Pasadena, CA

    Cultural and community development

    $500
  12. Pasadena ShowcasePasadena, CA

    Arts education

    $495
  13. East Meets West Parent Education ClubSan Marino, CA

    Cultural education

    $250
  14. San Marino Schools FoundationSan Marino, CA

    To support public education: smaller class sizes, broader curriculum and more enrichment opportunities.

    $103

Where the money goes

By cause: grants to organizations we matched to the IRS list of exempt organizations, by their category.

  1. Arts and culture2 grants $5,50043% of the total
  2. Philanthropy and grantmaking2 grants $3,50027% of the total
  3. Housing and shelter1 grant $2,65021% of the total
  4. Education2 grants $1,1039% of the total

By State

Grants to organizations with a US address, latest year.

  1. California12 grants $75,848
  2. Virginia1 grant $1,000
  3. Illinois1 grant $700

Officers, directors and trustees

3 people as filed

As filed on the return, with average hours per week and pay from the foundation.

  • Qing S DuncanCEO/DIRECTOR Hours 0.5Pay $0
  • Megan DuncanCFO/DIRECTOR Hours 0Pay $0
  • Joshua DuncanDIRECTOR Hours 0Pay $0

The return

More foundations

Similar foundations

Same main cause (arts and culture), giving between a quarter and four times this foundation’s where possible, nearby first.

  1. Maier Family FoundationLarkspur, CA 7 grants Preselected only $77,875 giving
  2. Concannon Family FoundationEscondido, CA 17 grants Preselected only $77,000 giving
  3. Anita Mann Kohl Charitable FoundationWest Hollywood, CA 29 grants Preselected only $78,105 giving
  4. Protostar FoundationSan Diego, CA 7 grants Accepts applications $79,000 giving
  5. Sunset Heights Assn Responsible PeopleSan Francisco, CA 27 grants Preselected only $79,400 giving