Harry and Masie Masto Foundation dba masto foundation
Invitation Onlysan francisco, California · EIN 91-1117863 · Private foundation · Website
Grants paid (2024)$546K
Organizations funded44
Typical grant$10,000
Total assets$8.4M
Half of its grants to organizations were between $5,000 and $20,000.
From the return
How to apply
On its return for tax year 2024 the foundation checked the box saying it only makes contributions to preselected charitable organizations and does not accept unsolicited requests for funds.
What it funds
Share of grant lines on the latest return, classified from the purpose each grant states.
Where it gives
41% of grants went outside California.
Grants paid in tax year 2024
| Recipient | Location | Purpose | Amount |
|---|---|---|---|
| Mufg Union Bank Cares Fund | Los Angeles, CA | To support same-sex marriage education and advocacy efforts in japan | $52,360 |
| Tides Foundation | Los Angeles, CA | For equality without borders grantees | $36,333 |
| Possibility Labs | San Francisco, CA | to SUPPORT the DEVelopment OF THE MOONSOON VENTURE CAPITAL FUND FOR INDIGENOUS WOMEN | $26,250 |
| Kultivate Labs | San Francisco, CA | To support koho - a vibrant new arts and culture center in japantown | $22,223 |
| Fund for Constitutional Government | Washington, DC | For keseb's efforts to counter authoritarianism and advance inclusive and resilient democracies | $21,400 |
| Asian American Futures | Irvine, CA | To support asian american futures "imagine initiative" | $20,000 |
| Asian American-Pacific Islanders in Philanthropy | Oakland, CA | Aapip expands funding and support for aapi communities through advocacy, leadership and philanthropic collaboration | $20,000 |
| Friends of Minidoka Inc | Twin Falls, ID | To engage in and support education, research, and historic preservation of wwii incarceration | $20,000 |
| Japanese American Citizens League | Kent, WA | To support creation of the rememberance gallery at the puyallup | $20,000 |
| National Japanese American Memorial Foundation | Washington, DC | To support capacity building and fundraising efforts for the japanese-american confinement sites consortium | $20,000 |
| Outright Action International | New York, NY | To strengthen the capacity of the lgbtqi rights movement internationally | $20,000 |
| Visible Figures | alexandria, VA | Additional add-on grant for visible figures from the trust black women initiative | $20,000 |
| Chinese for Affirmative Action | San Francisco, CA | For lavender phoenix's efforts to promote liberation for lgbtq+api communities | $16,500 |
| Community Initiatives | Oakland, CA | Tsuru for solidarity direct action projects working to end detention sites and support immigrants | $16,500 |
| Densho | Seattle, WA | To share history of the wwii incarceration with japanese americans to promote equity and justice | $15,000 |
| Re Power Fund | St Paul, MN | To support capacity building and training for bipoc leaders and social justice | $15,000 |
| Ltsc Community Development Corporation | Los Angeles, CA | End of year match challenge grant for okaeri | $11,000 |
| Kultivate Labs | san francisco, CA | to support KOHO SPACE RENOVATION | $11,000 |
| Tides Foundation | los angeles, CA | Freedom to marry global's campaign to advance marriage for same-sex couples | $10,320 |
| Astraea Foundation Inc | New York, NY | To support astraea's US fund for crisis preparation | $10,000 |
| Donors of Color Network Inc | Beaverton, OR | To support docn's cross-nacial network of donors advancing justice | $10,000 |
| Friends of Majal Inc | Mesa, AZ | To support an arab language platform and online community for lgbtq people in the middle east | $10,000 |
| Horizons Foundation | San Francisco, CA | Annual board discretionary | $10,000 |
| Lilith Fund | Austin, TX | To support freedom and access to abortion care for women in texas | $10,000 |
| Horizons Foundation | san francisco, CA | Annual board discretionary | $10,000 |
| Horizons Foundation | san francisco, CA | Annual board discretionary | $10,000 |
| Horizons Foundation | san francisco, CA | For horizons foundation's annual gala | $10,000 |
| Horizons Foundation | san francisco, CA | For july munoz spirit award to promote lgbtq community building in the bay area | $10,000 |
| Visible Figures | Alexandria, VA | To support the community building and advancement of black female and non-binary entrepreneurs | $7,500 |
| Chinese for Affirmative Action | San Francisco, CA | In honor of lavender phoenix's 20th anniversary | $5,500 |
| Ltsc Community Development Corporation | Los Angeles, CA | Okaeri's community building efforts for lgbtq+ japanese-americans, families and allies | $5,435 |
| Funders for Lesbian and Gay Issues Inc | New York, NY | FUNDING FORWARD 2025 sponsorship | $5,000 |
| Insight | Kiev, UP | To support lbq human rights, advocacy, and social services in ukraine | $5,000 |
| Japanese American National Museum | Los Angeles, CA | To support the janm's ireicho - (sacred book of names) honoring japanese-americans incarcerated in wwii | $5,000 |
| Mahogany Project | Houston, TX | To support work that reduces social isolation and stigma faced by black transgender women | $5,000 |
| New Breath Foundation | Oakland, CA | For new breath foundation's collective liberation event | $5,000 |
| Save Our Sisters United | Houston, TX | Sosu support of black transgender women in houston through advocacy and community building | $5,000 |
| Ltsc Community Development Corporation | Los Angeles, CA | For okaeri's support for lgbtq+ individuals, their families and loved ones within the nikkei (japanese-american) community | $3,227 |
| San Diego Alliance for Asian Pacific Islander Amer | San Diego, CA | To support asian american and pacific islanders in historical preservation's 2024 forum | $3,000 |
| Community Initiatives | Oakland, CA | Tsuru for solidarity kintsugi conference sponsorship | $2,200 |
| The Field | New York, NY | To support marsha's plate weekly podcast that centers on black transgender women | $1,350 |
| Center for Empowered Politics Education Fund | Oakland, CA | Queer crescent - support of lgbtq+ muslims through healing, advocacy and empowerment | $1,250 |
| Reunion of African Descendants Inc | New York, NY | Road empowers formerly incarcerated individuals leadership and organizing to advance social justice | $1,250 |
| Transgender Law Center | Los Angeles, CA | The black lgbtqia migrant project to build community at the intersection of black and migrant experiences | $1,250 |
Grants approved for future payment
| Recipient | Location | Purpose | Amount |
|---|---|---|---|
| SOUTHWEST INDIGENOUS WOMEN'S coalition | mesa, AZ | FOR THE NATIONAL LGBTQ+TWO SPIRIT equity center | $57,500 |
| Tides Foundation | Los Angeles, CA | Freedom to marry global's campaign to advance marriage for same-sex couples | $30,960 |
| Kultivate Labs | San Francisco, CA | To support koho, a vibrant new arts and culture center in japantown | $22,223 |
| National Network of Abortion Funds - Lilith Fund | Austin, TX | To support reproductive freedom and access to abortion care for women in texas | $20,000 |
| ASIAN AMERICAN WORMEN'S POLITICAL initiative | east boston, MA | To support the only political leadership organization for aapi women in the US | $20,000 |
| Chinese for Affirmative Action | San Francisci, CA | For lavender phoneix's efforts to promote liberation for lgbtq+api communities | $16,500 |
| Community Initiatives | oakland, CA | To support tsuru for solidarity direct action projects working to end detention sites and support immigrants | $16,500 |
| Ltsc Community Development Corporation | Los Angeles, CA | Okaeri's community building efforts for lgbtq+ japanese-americans, families, and allies | $16,305 |
| Densho | Seattle, WA | To share history of the wwii incarceration of japanese americans to promote equity and justice | $15,000 |
| Re Power Fund | st pau, MN | To support capacity building and training for bipoc leaders and social justice | $15,000 |
| Seattle Indian Health Board | seattle, WA | To support urban indian health institute's data gathering and research that strengthens native communities | $11,500 |
| Horizons Foundation | san francisco, CA | for the july MUNOZ SPIRIT AWARD TO PROMOTE LGBTQ COMMUNITY BUILDING IN THE BAY AREA | $10,000 |
Giving by year
| Tax year | Grants paid | Grant lines |
|---|---|---|
| 2024 | $545,848 | 56 |
| 2023 | $579,363 | 50 |
Sources
- IRS Form 990-PF, tax year 2024, filed Aug 29, 2025 - IRS e-file batch, object ID 202502419349100020
- IRS Tax Exempt Organization Search for EIN 91-1117863
- Profile updated Nov 5, 2026
Facts on this page come from the foundation's own IRS Form 990-PF filings as published by the IRS. Grantvello does not know whether a foundation is accepting proposals right now: a past grant is not an open opportunity. Always confirm current guidelines with the funder before applying.