Data / Foundation grants / Six Tree Foundation
Six Tree Foundation: 16 grants to organizations, $1.1 million (tax year ended December 2025)
Six Tree Foundation, a private foundation in Atherton, CA, paid 16 grants to organizations totaling $1,066,500 in its tax year ended December 2025, according to its Form 990-PF filed with the IRS on May 5, 2026. The largest was $400,000 to Arizona State University FDN in Tempe, AZ for unrestricted gift.
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- EIN
- 872933644
- Based in
- Atherton, CA
- Assets
- $1,908,539
- Grants paid
- $1,066,500
- Tax year ended
- December 2025
Grants paid, tax year ended December 2025
From the Form 990-PF filed May 5, 2026, IRS object ID 202621259349103077. It reported $1,066,500 in grants paid; 16 grants to organizations are listed.
| Recipient | Location | Purpose | Cause | Amount | Source |
|---|---|---|---|---|---|
| Arizona State University FDN | Tempe, AZ | Unrestricted gift | $400,000 | apps.irs.gov | |
| Mid-Pacific Institute | Honolulu, HI | Unrestricted gift | $150,000 | apps.irs.gov | |
| California Community Fund | Los Angeles, CA | Unrestricted gift | $100,000 | apps.irs.gov | |
| Gladstone Foundation | San Francisco, CA | Unrestricted gift | Education | $87,500 | apps.irs.gov |
| Stanford University | Stanford, CA | Unrestricted gift | $50,000 | apps.irs.gov | |
| Us Japan Council | Washington, DC | Unrestricted gift | International, foreign affairs and national security | $50,000 | apps.irs.gov |
| Foundation for International Understanding Through Students | Seattle, WA | Unrestricted gift | International, foreign affairs and national security | $35,000 | apps.irs.gov |
| Nishimachi Foundation the Corp Trust Co | Wilmington, DE | Unrestricted gift | $25,000 | apps.irs.gov | |
| Okinawa Institute of Science and Technology Foundation | Irvington, NY | Unrestricted gift | $25,000 | apps.irs.gov | |
| Pacific International Center for High Technology Research (pichtr) | Honolulu, HI | Unrestricted gift | $25,000 | apps.irs.gov | |
| Purple Maia Foundation | Aiea, HI | Unrestricted gift | $25,000 | apps.irs.gov | |
| Risehi Foundation | Kailua, HI | Unrestricted gift | Arts, culture and humanities | $25,000 | apps.irs.gov |
| University of California Santa Barbara | Santa Barbara, CA | Unrestricted gift | $25,000 | apps.irs.gov | |
| Japanese Friendship Gardens of Phoenix | Phoenix, AZ | Unrestricted gift | $20,000 | apps.irs.gov | |
| Menlo College | Atherton, CA | Unrestricted gift | $15,000 | apps.irs.gov | |
| Kristi Yamaguchis Always Dream | Danville, CA | Unrestricted gift | $9,000 | apps.irs.gov |
Grants paid, tax year ended December 2024
From the Form 990-PF filed May 13, 2025, IRS object ID 202521339349101307. It reported $707,500 in grants paid; 14 grants to organizations are listed.
| Recipient | Location | Purpose | Cause | Amount | Source |
|---|---|---|---|---|---|
| Mid-Pacific Institute | Honolulu, HI | Unrestricted gift | $150,000 | apps.irs.gov | |
| Us Japan Council | Washington, DC | Unrestricted gift | International, foreign affairs and national security | $100,000 | apps.irs.gov |
| Gladstone Foundation | San Francisco, CA | Unrestricted gift | Education | $87,500 | apps.irs.gov |
| Foundation for International Understanding Through Students | Seattle, WA | Unrestricted gift | International, foreign affairs and national security | $75,000 | apps.irs.gov |
| Purple Maia Foundation | Aiea, HI | Unrestricted gift | $50,000 | apps.irs.gov | |
| Stanford University | Stanford, CA | Unrestricted gift | $50,000 | apps.irs.gov | |
| Arizona State University FDN | Tempe, AZ | Unrestricted gift | $35,000 | apps.irs.gov | |
| Boy Scouts of America | San Jose, CA | Unrestricted gift | $25,000 | apps.irs.gov | |
| Kristi Yamaguchis Always Dream | Danville, CA | Unrestricted gift | $25,000 | apps.irs.gov | |
| Myriad USA Inc | New York, NY | Unrestricted gift | International, foreign affairs and national security | $25,000 | apps.irs.gov |
| Nishimachi Foundation the Corp Trust Co | Wilmington, DE | Unrestricted gift | $25,000 | apps.irs.gov | |
| Risehi Foundation | Kailua, HI | Unrestricted gift | Arts, culture and humanities | $25,000 | apps.irs.gov |
| University of California Santa Barbara | Santa Barbara, CA | Unrestricted gift | $25,000 | apps.irs.gov | |
| Menlo College | Atherton, CA | Unrestricted gift | $10,000 | apps.irs.gov |
Causes funded
From grants whose recipient has a cause.
| Cause | Granted |
|---|---|
| International, foreign affairs and national security | $285,000 |
| Education | $175,000 |
| Arts, culture and humanities | $50,000 |
States funded
| Recipient state | Granted |
|---|---|
| California | $509,000 |
| Arizona | $455,000 |
| Hawaii | $450,000 |
| District of Columbia | $150,000 |
| Washington | $110,000 |
| Delaware | $50,000 |
| New York | $50,000 |
Also on SpecStream
- Who funds education in California
- Who funds international, foreign affairs and national security in District of Columbia
- Who funds international, foreign affairs and national security in Washington
- Who funds arts, culture and humanities in Hawaii
- Who funds international, foreign affairs and national security in New York
Updated May 5, 2026. Read from IRS Form 990-PF e-file data. Public domain (U.S. government work). Grants are as each foundation reported them to the IRS on its Form 990-PF. Grants to individuals are left out. A grant has a cause only where the recipient's name and city match one organization in the IRS Business Master File, and the cause is that organization's NTEE major group. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.