· Private foundation
William H Hinkle Charitable Foundation Inc
Its FY2024 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.
What you funded, over time
Every grant clustered by its grantee’s IRS cause code (NTEE), by year — across FY2017–2024.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2024
- Under $10k1 grant · $5k
- $10k–50k2 grants · $38k
- $50k–250k1 grant · $50k
| Recipient | Amount |
|---|---|
| SEA STAR VILLAGE | $50,000 |
| WORLD BAMBOO FOUNDATION | $25,000 |
| RUSSIAN RIVER KEEPER | $13,000 |
| GEYSERVILLE COMMUNITY FOUNDATION | $5,000 |
Do your dollars go where the need is?
Each grant placed by the hardship in its grantee’s ZIP, then read against the area’s typical level.
Your human-services grants (FY20–20, $5k) land where the poverty rate runs at 9%, against an area that typically sits at 9%. 100% of those dollars go to grantees based in above-average-need neighborhoods. Most of your grants land in higher-need ZIPs.
Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty linein the grantee’s ZIP, averaged from the tracts in that ZIP; grantee ZIP can differ from where services are delivered.
US grants placed by each grantee’s ZIP, which can differ from where services are actually delivered. Need from public data — U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA — shown as context about the area, never attributed to your giving.
Who you back again
Which organizations you funded more than once, and which you funded a single time. Each grantee is matched to its own filings.
7 repeat relationships — 2 still active in FY2024, 5 since wound down; 2 grantees were first funded in FY2024 (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 FY2024, 32% of grant dollars renewed an existing relationship; $63k went to new ones.
Where new relationships form · theme of each grantee’s first grant
First-time = a grantee’s first year in your filing window; renewed = funded in an earlier year too. As a portfolio matures the renewed share naturally climbs — once funded, an org stays “renewable” — so the signal is the years that buck it (a new-grantee intake wave). The earliest year is left-censored: relationships that predate the data read as “new.” Theme is the grantee’s IRS cause.
Backed again, and grew
- SLSONOMA LAND TRUST5× · 2017–2023 · $325k · revenue +334%
- PFPEPPERWOOD FOUNDATION2× · 2017–2020 · $8k · revenue +9%
- WBWHITE BUFFALO LAND TRUST2× · 2020–2022 · $6k · revenue +7%
Funded once
- SCSonoma County Grape Growers Foundationgraduatedone grant, 2017 · $50k · revenue +27% · 28% of their budget
- URUC Regentsone grant, 2018 · $35k
- TCTHE CALIFORNIA LAND STEWARDSHIP INSTITUTEgraduatedone grant, 2020 · $25k · revenue +491%
Repeat = funded in two or more distinct years; growth and survival are read from each grantee’s own subsequent IRS filings.
The map has a center of gravity: the average direction from the rest of the sector toward the organizations the foundation funds — the shape of its giving. Scoring every nonprofit along that direction surfaces the ones that look most like the portfolio. These are the closest matchesthat aren’t grantees — a resemblance in what they say they do, not a recommendation.
Sustainable Conservation advances the collaborative stewardship of Californias land, air, and water for the benefit of nature and people. For over three decades, Sustainable Conservation has built coalitions of people with different…
The Sierra Fund (TSF) is a non-profit organization with a mission to restore ecosystem and community resiliency in the Sierra Nevada.
We conserve the lands and waters of California's heartland.
Large scale restoration of priority ecosystems and habitats.
At Yosemite Rivers Alliance, we unite conservation and community to protect and restore the three rivers that ?ow through the Yosemite Regionthe Tuolumne, Stanislaus, and Merced.
The Mission of Sonoma Ecology Center is to work with our community to enhance and sustain ecological health in the Sonoma valley.
The purpose of the organization is to monitor, manage, and preserve conservation easements it stewards in northern california. the organization acquires conservation easements in land exhibiting important natural features to protect and…
To ensure coast redwood forests in the santa cruz mountains thrive for generations to come. since 1900, sempervirens has protected more than 36,000 acres. learn more about our mission, vision, and strategic plan through 2030 at:…
Our mission is to protect local nature and farmland to ensure a healthy environment for everyone.
The mission of solano land trust is to protect land to ensure a healthy environment, keep ranching and farming families on their properties, and inspire a love of the land.
For reference, the grantee most central to the portfolio’s shape is The California Land Stewardship Institute and the most unlike its peers is Inreach. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
Your grantees are a median of 24 years old; the field is 18. You back the established end — and your money leans older still.
The field is 18% startups (under 5 years old) — 0% of your grantees by number, and just 0% of your money.
The orgs you fund almost never close — 0.0% lost their exemption, against 11% of the field you don’t fund.
Age = years since IRS exemption (a founding proxy). “Closed” = auto-revocation for 3 years of non-filing — a floor on closure, not proof, and bigger established orgs lapse least. Association, not causation.
26 grantees tracked through their own filings, 2017–2025.
Each one resolved to its own IRS returns and tracked year by year — your grant beside their revenue from every source. Association, dated; never a causal claim.
Counted here: distinct organizations you funded across 2017–2025, not grant rows in a single year — so this will not match the grant count on the cover. 26 of the 38 grantees resolved in that span have returns of their own we could reconcile; the rest are funded organizations whose filings we could not track year by year.
Where your money sits — by cause, then by grantee
Each org by its size and your share of it — top-left is where you’re load-bearing
Go grantee by grantee — a decade per org, and how each moved after you funded them
A decade per grantee — revenue shaded, your grants as bars, all rows on one timeline.
- Who funds SONOMA LAND TRUST ↗
- Who funds WORLD BAMBOO FOUNDATION INC ↗
- Who funds Sea Star Village ↗
- Who funds Sonoma County Grape Growers Foundation ↗
- Who funds THE CALIFORNIA LAND STEWARDSHIP INSTITUTE ↗
- Who funds GEYSERVILLE COMMUNITY FOUNDATION ↗
- Who funds Russian Riverkeeper ↗
- Who funds INREACH ↗
- Who funds PEPPERWOOD FOUNDATION ↗
- Who funds NATURAL RESOURCES DEFENSE COUNCIL INC ↗
- Who funds WHITE BUFFALO LAND TRUST ↗
- Who funds NORTHERN SONOMA COUNTY FIRE FOUNDATION ↗
- Who funds OUTRIGHT INTERNATIONAL ↗
- Who funds DEMOCRACY NOW PRODUCTIONS INC ↗
- Who funds Demeo Teen Club Inc ↗
- Who funds SCOPA HAS A DREAM INC DBA CORAZON HEALDSBURG ↗
- Who funds Lime Foundation ↗
- Who funds Cool Effect Inc ↗
- Who funds GEYSERVILLE EDUCATIONAL FOUNDATION ↗
- Who funds SANTA ROSA SUNRISE ROTARY FOUNDATION ↗
- Who funds Valley of the Moon Children's Home Foundation ↗
- Who funds GEYSERVILLE HISTORICAL SOCIETY ↗
- Who funds SONOMA COUNTY COMMUNITY FOUNDATION ↗
- Who funds CALIFORNIA MASONIC FOUNDATION ↗
- Who funds CLIMATE RIDE INC ↗
- Who funds OUTRIGHT VERMONT ↗
The grantmakers whose grantees overlap with yours far more than size alone predicts. Each orbits closer the stronger the alignment; the arcs between them show where they also fund each other. Here it reads as a tightly interlocked camp — most of these funders back each other's grantees too.
Open a dossier: Sonoma County Community Foundation · Marin Community Foundation · Trione Foundation · The Foley Family Charitable Foundation · Messing Family Charitable Foundation · The Heck Foundation · Sonoma County Vintners Foundation · Impactassetsinc · Gs Donor Advised Philanthropy Fund for Wealth Management Inc · Vanguard Charitable Endowment Program · Paypal Charitable Giving Fund · The Pfizer Foundation Inc
Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. A research starting point: overlap is association, not proof of shared intent.
Government reliance of your grantees
Every dot is one organization William H Hinkle Charitable Foundation Inc funds. Left–right is the share of its income from government; up–down is the share from you. Bigger dots raise more. Filter to federal or a single department — and drag the year to watch it move.
- Outright Vermont — 13% of income from government
Government income is each org’s traced federal awards (USASpending — grants and contracts) plus state payments (open checkbooks) as a share of its total revenue (IRS Form 990); the self-reported government-grant line (990 line 1e) is carried for cross-check: a grantee that reports government grants we could not trace to a source is left off the chart rather than shown as receiving none. An association, not a claim that your grant caused the public funding. Coverage is precision-first — a floor, not a census; state records exist for 9 states, so a grantee outside them shows no state figure (dimmed) rather than a false zero. Federal award amounts are obligations, which can span years, so a single-year share is indicative. 990 filings lag 12–24 months.
Warm introductions · Powered by PlinthPlus
How do I get to William H Hinkle Charitable Foundation Inc?
Find your warmest path to William H Hinkle Charitable Foundation Inc 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.