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California · Private foundation

One Oak Foundation

Its FY2025 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.

$7k
Granted FY2025(still arriving)
1
Grants FY2025
8
Organizations funded FY2024
25%
First-time grantees FY2024
Read the full brief
Median grant, FY2025
$7,000
Largest grant, FY2025
$7,000
Organizations funded a year
8 to 17
FY2018 to FY2024
States reached, FY2025
1
Total assets, FY2025
$321k
Applications
Preselected organizations only
Per its most recent filing; check its own site

How open it is to new grantees

In FY2024, 25% of the organizations One Oak Foundation funded were first-time grantees, receiving 23% of its grant dollars.

New vs renewed · share of each year

In FY2024, 77% of grant dollars renewed an existing relationship; $4k went to new ones.

50%100%’19’20’21’22’23’24
RenewedFirst-time

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

’19’20’21’22’23’24
HealthArts & CultureAnimalsEducationYouth DevelopmentRecreation & SportsOther
How this is measured
First-time means a grantee’s first year in the filing window; renewed means funded in an earlier year too. The renewed share climbs naturally as a portfolio matures, so the signal is a year that bucks it (a wave of new grantees). The earliest year is left-censored: relationships that predate the data read as new. Theme is the grantee’s IRS cause.
The numbers by year
Fiscal yearOrganizations fundedTo those organizationsFirst-time grantees
FY2025still arriving1$7k0%
FY20248$15k25%
FY202315$15k40%
FY202212$14k33%
FY202115$15k53%
FY202017$13k53%
FY201915$13k67%
FY201813$10kn/a
96% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2018 to 2025.

Health$68kEducation$14kEnvironment$6kArts & Culture$3kYouth Development$3kPhilanthropy$3kScience & Tech$2kCrime & Legal$2kOther$0

Top grantees

Largest recipients by total granted, FY2018 to FY2025, and the share of each one’s budget the grants supplied at peak.

Show all 24 grantees

What it could do for these grantees

Plus 28 recipients with no EIN on record ($50k), not named here.

Where it is load-bearing

Each grantee by its size and the share of its budget One Oak Foundation supplied at peak.

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetMontage Health Foundation: $36,000 over 5y, 0.0% of budgetMonterey Bay Aquarium Foundation: $3,500 over 4y, 0.0% of budgetBreakthrough T1d: $2,000 over 4y, 0.0% of budgetMonterey Bay Fisheries Trust: $1,500 over 2y, 0.2% of budgetChapman University: $1,000 over 1y, 0.0% of budgetWestern Flyer Foundation: $1,000 over 1y, 0.1% of budgetMonterey Jazz Festival: $1,000 over 2y, 0.0% of budgetParkinson's Foundation Inc: $1,000 over 1y, 0.0% of budgetRutgers University Foundation: $1,000 over 1y, 0.0% of budgetMonterey Museum of Art: $1,000 over 4y, 0.0% of budgetCenter for Community Advocacy: $1,000 over 1y, 0.1% of budgetGirls Incorporated of the Central Coast: $650 over 2y, 0.1% of budgetFood Bank for Monterey County: $500 over 1y, 0.0% of budgetMonterey County Rape Crisis Center: $500 over 1y, 0.0% of budgetPoint Lobos Foundation: $450 over 3y, 0.0% of budgetBreast Cancer Assistance Group: $400 over 2y, 0.1% of budgetThe City College Fund: $250 over 2y, 0.0% of budgetKqed Inc: $200 over 5y, 0.0% of budgetThe United States Holocaust Memorial Museum: $125 over 3y, 0.0% of budgetSt Jude Children's Research Hospital Inc: $100 over 1y, 0.0% of budgetCalifornia State Parks Foundation: $100 over 1y, 0.0% of budgetThe American Society for the Prevention of Cruelty to Animals: $100 over 1y, 0.0% of budgetNational Multiple Sclerosis Society: $10 over 2y, 0.0% of budget

Tap a dot to name the grantee.

How this is measured
Share of budget is the funder’s grant in a year over the grantee’s total revenue that year, at its highest across the years we hold; revenue is from all sources. Only grantees confirmed against their own filings, whose grants do not exceed their revenue, are plotted: the largest 23.

Co-funders

Grantmakers whose grantees overlap with this funder’s far more than size alone predicts. Closer means stronger alignment; arcs show where they also fund each other. Here they form a tightly interlocked group: most of these funders back each other's grantees too.

Monterey Peninsula FoundationCA24.1× affinity9 shared granteesties to 9 of 9Hover any node to trace its alignments.Compare side by side →

Open a dossier: Monterey Peninsula Foundation · Nancy Buck Ransom Foundation · The David and Lucile Packard Foundation · Community Hospital of the Monterey Peninsula · Pebble Beach Company Foundation · Community Foundation Santa Cruz County · National Philanthropic Trust · Donor Advised Charitable Giving Inc · Fidelity Investments Charitable Gift Fund · Amazonsmile Foundation

How this is measured
Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. Overlap is association, not proof of shared intent.

Compare One Oak Foundation with peer funders

About One Oak Foundation

How much does One Oak Foundation give?
One Oak Foundation reported 1 grants totaling $7,000 in its FY2025 IRS filing. It funded between 8 and 17 organizations a year over FY2018 to FY2024.
What does One Oak Foundation fund?
By grant dollars over FY2018 to FY2025, its largest causes are Health (65%), Education (13%), Environment (5%).
Who are One Oak Foundation's largest grantees?
By total granted over FY2018 to FY2025: Montage Health Foundation ($36k), Monterey Bay Aquarium Foundation ($4k), Breakthrough T1d ($2k).
Does One Oak Foundation fund new organizations?
In FY2024, 25% of the organizations it funded were first-time grantees.
Does One Oak Foundation accept unsolicited applications?
Its most recent filing reports that it funds preselected organizations and does not take unsolicited requests. Check the foundation's own site before ruling it out.
Which funders back the same organizations as One Oak Foundation?
Its strongest co-funders, measured against what their size predicts, include Monterey Peninsula Foundation, Nancy Buck Ransom Foundation, The David and Lucile Packard Foundation.
Where is One Oak Foundation based?
One Oak Foundation is based in CA.

On method. Every financial figure here is read from IRS e-file XML, the funder’s own 990/990-PF, and from the multi-year returns of the 52 grantees we resolved, each linked to its source. Grantee outcomes are each organization’s own program-service reporting (Form 990, Part III), read as association with funding, never as caused by it. Low-confidence name matches are suppressed rather than guessed. How we build these →

How this is measured
Each figure carries one of six labels. Filed is what the funder reported on its 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.

Generated from the IRS Form 990-PF e-file return for fiscal year 2025, released 2025. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

Source object · view filing

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