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Data / Foundation grants / The Oak Foundation USA

The Oak Foundation USA: 7 grants to organizations, $6.9 million (tax year ended December 2025)

The Oak Foundation USA, a private foundation in New York, NY, paid 7 grants to organizations totaling $6,892,320 in its tax year ended December 2025, according to its Form 990-PF filed with the IRS on July 22, 2026. The largest was $4,598,750 to Hawaii Community Foundation in Honolulu, HI for to support hcf's vision of an equitable and vibrant hawaii, where all island communities thrive..

SpecStream is the live web data engine for teams and agents. It reads every private foundation's Form 990-PF as the IRS publishes it, and this page is that reading. Ask for the foundations that fund your cause in your state, with the amounts and purposes, and new grants arrive in your sheet, CRM, Slack or agent as the returns are filed.

EIN
133321196
Based in
New York, NY
Assets
$10,577,545
Grants paid
$6,892,320
Tax year ended
December 2025

Grants paid, tax year ended December 2025

From the Form 990-PF filed July 22, 2026, IRS object ID 202612039349100951. It reported $6,892,320 in grants paid; 7 grants to organizations are listed.

RecipientLocationPurposeCauseAmountSource
Hawaii Community FoundationHonolulu, HITo support hcf's vision of an equitable and vibrant hawaii, where all island communities thrive.Philanthropy, voluntarism and grantmaking foundations$4,598,750apps.irs.gov
Cast IncLynnfield, MATo provide core support to cast in its work to transform education design and practice in the us.Human services$500,000apps.irs.gov
Upstream USA IncBoston, MATo provide core support to upstream us to transform contraceptive care in health centers in the us.Health care$500,000apps.irs.gov
The Army of Survivors IncLansing, MITo provide core support to raise awareness, accountability, and transparency on the issue of sexual violence against athletes in the united states and internationally.Crime and legal-related$390,000apps.irs.gov
New Teacher CenterSanta Cruz, CATo provide support to the new teacher center, based in california, to pilot innovative professional teaching that equips teachers and staff to support students with learning differences.$353,570apps.irs.gov
Proteus FundNew York, NYTo provide core support to puentes, a communications hub in latin america.$300,000apps.irs.gov
Student UDurham, NCTo help students and families in durham thrive through ongoing academic and personal support.Education$250,000apps.irs.gov

Grants paid, tax year ended December 2024

From the Form 990-PF filed August 4, 2025, IRS object ID 202542169349100219. It reported $7,423,074 in grants paid; 9 grants to organizations are listed.

RecipientLocationPurposeCauseAmountSource
Hawaii Community FoundationHonolulu, HITo support hcf's vision of an equitable and vibrant hawaii, where all island communities thrive.Philanthropy, voluntarism and grantmaking foundations$4,286,500apps.irs.gov
Book HarvestDurham, NCTo provide support to book harvest in its efforts to transform literacy for under-resourced children across north carolina.Education$750,000apps.irs.gov
Cast IncLynnfield, MATo provide core support to cast in its work to transform education design and practice in the us, until learning has no limits.Human services$500,000apps.irs.gov
Upstream USA IncBoston, MATo provide core support to upstream us in the us.Health care$500,000apps.irs.gov
New Teacher CenterSanta Cruz, CATo provide support to the new teacher center, based in california, to pilot innovative professional teaching that equips teachers and staff to support students with learning differences.$401,520apps.irs.gov
Vocal-NyBrooklyn, NYTo provide general support to vocal-ny, a grassroots membership organization based in new york city that builds the collective voice of people who live on low-incomes and are experiencing homelessness$400,000apps.irs.gov
Proteus FundNew York, NYTo provide core support to puentes.$300,000apps.irs.gov
President & Fellows of Harvard CollegeCambridge, MATo advance knowledge and support the development of innovative science and technology oriented policy solutions to address india's climate and energy challenges.Education$185,990apps.irs.gov
Arc4justice IncNeedham, MATo support the center for social innovation, based in the us, which works to improve the lives of marginalized and vulnerable people.$99,064apps.irs.gov

Causes funded

From grants whose recipient has a cause.

States funded

Recipient stateGranted
Hawaii$8,885,250
Massachusetts$2,285,054
New York$1,000,000
North Carolina$1,000,000
California$755,090
Michigan$390,000

Also on SpecStream

Updated July 22, 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.