· Private foundation
Leathers Family 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.
What it funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2024.
Where the money goes
Grants by size, and the largest recipients.
By grant size · FY2025
- Under $10k9 grants · $32k
- $10k–50k1 grant · $20k
| Recipient | Amount |
|---|---|
| MARIN ART & GARDEN | $20,000 |
| CORTE MADERA COMMUNITY CENTER | $8,890 |
| MIDSUMMER MUSICAL RETREAT | $5,000 |
| ROSS SCHOOL FOUNDATION | $5,000 |
| Individual grant recipient | $5,000 |
| ROSS PROPERTY OWNERS ASSOC | $2,500 |
| ROTACARE BAY AREA | $2,500 |
| ROSS POLICE OFFICERS ASSOCIATION | $2,000 |
| MARIN SYMPHONY | $1,000 |
| MARIN ROSE SOCIETY | $500 |
Does the money reach high-need areas?
Each grant placed by the hardship in its grantee’s ZIP, against the area’s typical level.
Its human-services grants (FY17–25, $5k) land where the poverty rate runs at 8%, against an area that typically sits at 8%. 0% of those dollars go to grantees based in above-average-need neighborhoods. Its grants skew toward lower-need ZIPs.
How this is measured
Which US states its grants reach
How this is measured
Who it funds again
Organizations funded in more than one year, against those funded once.
16 repeat relationships: 6 still active in FY2025, 10 since wound down; 4 grantees were first funded in FY2025 (too recent to call).
How the two cohorts compare
Organizations
Total granted
Median revenue growth · since first grant
Still filing today
New vs renewed · share of each year
In FY2025, 83% of grant dollars renewed an existing relationship; $9k went to new ones.
Where new relationships form · theme of each grantee’s first grant
How this is measured
Backed again, and grew
- TOTOWN OF ROSS PROPERTY OWNERS ASSOCIATION8× · 2018–2025 · $8k · revenue +31%
- EFENVIRONMENT FOR THE AMERICAS INC4× · 2019–2023 · $6k · revenue +525%
- COCORPORATION OF THE FINE ARTS MUSEUMS2× · 2017–2019 · $3k · revenue +19%
Funded once
- STSOUNDS TRUE FOUNDATIONone grant, 2023 · $10k · revenue +9%
- TWTHE WORK FOUNDATION INCgraduatedone grant, 2018 · $5k · revenue +130%
- ABAmerican Bird Conservancyone grant, 2023 · $3k · revenue -3%
How this is measured
Repeat means funded in two or more distinct years. Growth and survival are read from each grantee’s own subsequent IRS filings.
Closest unfunded matches
The nonprofits that most resemble its grantees but are not funded by it, scored along the direction from the rest of the field toward the portfolio. A resemblance in what they say they do, not a recommendation.
Rainforest trust saves endangered wildlife and protects our planet by creating rainforest reserves through partnerships, community engagement, and donor support.
Tmt international observatory (tio) was founded by the members listed below exclusively to further charitable, educational and scientific purposes and, within such limits, to advance scientific knowledge and education through the study,…
The purpose of rainforest foundation us is to support indigenous peoples and forest communities in their efforts to secure their lands, protect their environment, and uphold their rights.
Rare inspires change so people and nature thrive.
RA works at the intersection of business, agriculture & forests to improve lives & protect nature by transforming how land is used, production of goods & consumer choices.
Wwf's mission is to conserve nature and reduce the most pressing threats to the diversity of life on earth. (continued on schedule o)
To advance the frontiers of astronomy and share our discoveries with the world. the two 10-meter telescopes of keck observatory are the world's largest optical and infrared telescopes. they have revolutionized our understanding of the…
Maintain strengthen and develop common intellectual and cultural space of the russianspeaking scientific community
To guarantee all americans quality places to hunt and fish.
To advocate for policy changes by governments and corporations in order to preserve ocean life and return the oceans to their former abundance.
Help improve policy and decision making through research and analysis.
The amazon conservation team (act) partners with indigenous and other local communities to protect tropical forests and strengthen traditional culture.
How this is measured
18 grantees tracked through their own filings, 2017–2025.
Each grant beside the grantee’s revenue from every source, year by year.
How this is measured
Counted here: distinct organizations funded across 2017 to 2025, not grant rows in a single year, so this will not match the grant count on the cover. 18 of the 35 grantees resolved in that span have returns of their own we could reconcile.
Each grantee is resolved to its own IRS returns. Association, dated; never a causal claim.
Where the money sits, by cause and then by grantee
Each grantee by its size and the funder’s share of it; top left is load-bearing
Grantee by grantee: a decade per organization, before and after funding
A decade per grantee: revenue shaded, grants as bars, all rows on one timeline.
- Who funds THE GANGAJI FOUNDATION ↗
- Who funds OPEN CIRCLE CENTER INC ↗
- Who funds SOUNDS TRUE FOUNDATION ↗
- Who funds TOWN OF ROSS PROPERTY OWNERS ASSOCIATION ↗
- Who funds BLOOD CANCER UNITED INC ↗
- Who funds Ross School Foundation ↗
- Who funds ENVIRONMENT FOR THE AMERICAS INC ↗
- Who funds THE NATURE CONSERVANCY ↗
- Who funds THE WORK FOUNDATION INC ↗
- Who funds MIDSUMMER MUSICAL RETREAT SOCIETY ↗
- Who funds ROSS POLICE OFFICERS ASSOCIATION ↗
- Who funds CORPORATION OF THE FINE ARTS MUSEUMS ↗
- Who funds American Bird Conservancy ↗
- Who funds ROTACARE BAY AREA INC ↗
- Who funds MARIN SYMPHONY ASSOCIATION ↗
- Who funds University of Arizona Foundation ↗
- Who funds THE ROTARY FOUNDATION OF ROTARY INTERNATIONAL ↗
- Who funds LAKE TAHOE SHAKESPEARE FESTIVAL ↗
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.
Open a dossier: Vanguard Charitable Endowment Program · Donor Advised Charitable Giving Inc · Fidelity Investments Charitable Gift Fund · Amazonsmile Foundation
How this is measured
How much its grantees rely on government
Each dot is one organization Leathers Family Foundation funds: left to right is the share of its income from government, bottom to top the share from Leathers Family Foundation. Bigger dots raise more.
How this is measured
Warm introductions · Powered by PlinthPlus
How do I get to Leathers Family Foundation?
Find your warmest path to Leathers Family 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.
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