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California · Private foundation

The Petit Teton 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.

$8k
Granted FY2025(still arriving)
10
Grants FY2025
11
Organizations funded FY2024
55%
First-time grantees FY2024
Read the full brief
Median grant, FY2025
$700
Largest grant, FY2025
$1,800
Organizations funded a year
11 to 19
FY2018 to FY2024
States reached, FY2025
1
Total assets, FY2025
$183k
Applications
Preselected organizations only
Per its most recent filing; check its own site

How open it is to new grantees

In FY2024, 55% of the organizations The Petit Teton Foundation funded were first-time grantees, receiving 55% of its grant dollars.

New vs renewed · share of each year

In FY2024, 45% of grant dollars renewed an existing relationship; $4k went to new ones.

50%100%’18’19’20’21’22’23’24
RenewedFirst-time

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

’18’19’20’21’22’23’24
EnvironmentRecreation & SportsHuman ServicesYouth DevelopmentEducationOther
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 arriving10$8k20%
FY202411$8k55%
FY202311$9k27%
FY202211$11k18%
FY202114$13k21%
FY202017$13k24%
FY201919$20k26%
FY201816$15k25%
97% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2024.

Environment$37kRecreation & Sports$18kFood & Nutrition$18kAnimals$6kCommunity Improvement$4kCrime & Legal$3kHuman Services$3kHousing & Shelter$2kOther$0

Top grantees

Largest recipients by total granted, FY2017 to FY2025, and the share of each one’s budget the grants supplied at peak.

Show all 22 grantees

What it could do for these grantees

Plus 22 recipients with no EIN on record ($29k), not named here.

Where it is load-bearing

Each grantee by its size and the share of its budget The Petit Teton Foundation supplied at peak.

25%50%75%100%$1.0M$10Mgrantee revenue →↑ funder's share of their budgetOccidental Arts and Ecology Center: $13,100 over 9y, 0.1% of budgetAgricultural Institute of Marin: $12,050 over 6y, 0.1% of budgetRichmond District Neighborhood Center Inc: $6,125 over 7y, 0.0% of budgetMendocino Land Trust: $6,100 over 9y, 0.1% of budgetCalifornia Wildlife Foundation: $4,600 over 6y, 0.0% of budgetSan Francisco Parks Alliance: $4,050 over 2y, 0.0% of budgetFriends of the Urban Forest: $3,900 over 4y, 0.0% of budgetMendocino Woodlands Camp Association: $3,400 over 4y, 0.4% of budgetCommunity Alliance With Family Farmers: $3,300 over 6y, 0.0% of budgetForests Forever Foundation Inc: $2,300 over 4y, 0.7% of budgetProject Avary Inc Alternative Ventures for at Risk Youth: $2,300 over 6y, 0.1% of budgetGolden Gate National Parks Conservancy: $2,300 over 3y, 0.0% of budgetValley Verde: $1,900 over 3y, 0.1% of budgetAt the Crossroads: $1,800 over 3y, 0.0% of budgetSlide Ranch: $1,600 over 4y, 0.1% of budgetPie Ranch: $1,600 over 4y, 0.0% of budgetEarth Island Institute Inc: $1,500 over 4y, 0.0% of budgetWeaving Earth Inc: $1,100 over 2y, 0.1% of budgetPoint Reyes Bird Observatory: $1,000 over 1y, 0.0% of budgetBay Area Financial Education Foundation: $900 over 2y, 0.6% of budgetPlowshares Peace & Justice Center: $300 over 1y, 0.0% of budgetAnderson Valley Land Trust: $300 over 1y, 0.7% 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 22.

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.

The San Francisco FoundationCA21.7× affinity9 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: The San Francisco Foundation · Bothin Foundation · The David and Lucile Packard Foundation · Marin Community Foundation · Silicon Valley Community Foundation · Clif Family Foundation · McNabb Foundation · Impactassetsinc · Patagoniaorg · Community Foundation of Mendocino County · Rsf Social Finance Inc · Gordon E and Betty I Moore 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 The Petit Teton Foundation with peer funders

Warm introductions · Powered by PlinthPlus

How do I get to The Petit Teton Foundation?

Find your warmest path to The Petit Teton Foundation through trustees and officers whose names appear on both boards. Search for your organization and Plinth traces the shortest route it can evidence.

Each link is a name appearing on two organizations’ public IRS 990 filings, matched on that name and, where the filings support it, on location. A same-state match has geographic support, which is a second matching feature rather than confirmation that the two are one person; a cross-state one is the likeliest to be two people who share a name. Every hop shows its tier, low-confidence and distant paths are held back rather than guessed, and it is worth confirming the person before you use the introduction.

About The Petit Teton Foundation

How much does The Petit Teton Foundation give?
The Petit Teton Foundation reported 10 grants totaling $8,400 in its FY2025 IRS filing. It funded between 11 and 19 organizations a year over FY2018 to FY2024.
What does The Petit Teton Foundation fund?
By grant dollars over FY2017 to FY2025, its largest causes are Environment (39%), Recreation & Sports (19%), Food & Nutrition (18%).
Who are The Petit Teton Foundation's largest grantees?
By total granted over FY2017 to FY2025: Occidental Arts and Ecology Center ($13k), Agricultural Institute of Marin ($12k), Richmond District Neighborhood Center Inc ($6k).
Does The Petit Teton Foundation fund new organizations?
In FY2024, 55% of the organizations it funded were first-time grantees.
Does The Petit Teton 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 The Petit Teton Foundation?
Its strongest co-funders, measured against what their size predicts, include The San Francisco Foundation, Bothin Foundation, The David and Lucile Packard Foundation.
Where is The Petit Teton Foundation based?
The Petit Teton 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 44 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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