· Public charity
Sonoma Land Trust
Protect the scenic, natural, cultural, agricultural and open landscapes of sonoma county for the benefit of the community and future generations by developing long-term land protection strategies; (continued on schedule o) promoting private and public funding for land conservation; acquiring land and conservation easements; practicing…
What you funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year — across FY2018–2025.
Where the money goes
Your grants by size, and where they go.
The 7 grants below total $1,884,838 — the rows itemised in this filing. The $1,924,696 headline is the total grant expense reported on the return, so the remaining $39,858 is giving the schedule does not break out: grants under the $5,000 itemisation floor, grants to individuals, and grants reported on other schedules. Every figure below describes the itemised rows only.
By grant size · FY2025
- $10k–50k1 grant · $25k
- $50k–250k3 grants · $509k
- $250k+3 grants · $1.4M
| Recipient | Amount |
|---|---|
| CITY OF SANTA ROSA | $831,357 |
| AUDUBON CANYON RANCH | $269,440 |
| SONOMA COUNTY REGIONAL PARKS FOUNDATION | $250,000 |
| CALIFORNIA COUNCIL OF LAND TRUSTS ACTION FUND | $200,000 |
| CALIFORNIA STATE PARKS | $170,400 |
| SONOMA COUNTY REGIONAL PARKS | $138,641 |
| GRATON COMMUNITY SERVICES DISTRICT | $25,000 |
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.
Dollar for dollar, your grants (FY18–25) land where the poverty rate runs at 10%, against an area that typically sits at 12%. 13% of your dollars go to grantees based in above-average-need neighborhoods. Your grants skew toward lower-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.
Where the work is directed
The same grants, placed two ways — where each recipient sits, and where its stated purpose earmarks the money.
About 6% of Sonoma Land Trust’s grant dollars are earmarked, by their stated purpose, for a different county than the recipient’s own address — money that lands at a nonprofit in one place but is meant to do its work in another. Read by recipient address, 98% of the giving stays in CA; read by stated purpose it is 94% — less of the work is directed home than the recipients' locations suggest.
Recipient view: each grant at its grantee’s ZIP, mapped to a county. Directed view: each grant at the county its stated purpose names, falling back to the recipient’s county when the purpose names no place; US grants only. A county shows only if it carries the top 95% of that view’s dollars. Purposes are read from the foundation’s own 990 grant descriptions.
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.
10 repeat relationships — 3 still active in FY2025, 7 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, 31% of grant dollars renewed an existing relationship; $1.3M 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
- SFSan Francisco Estuary Institute3× · 2020–2023 · $117k · revenue +48%
- WCWildlife Conservation Society2× · 2018–2019 · $100k · revenue +44%
- DUDucks Unlimited Inc3× · 2018–2022 · $72k · revenue +97%
Funded once
- RCRedwood Coast Land Conservancygraduatedone grant, 2021 · $150k · revenue ×40
- SOStewards of the Coast and Redwoodsone grant, 2023 · $35k · revenue -24%
- PRPETALUMA RIVER PARK FOUNDATION INCgraduatedone grant, 2022 · $19k · revenue +440%
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 foundation works with diverse groups representing many interests to acquire and restore critical wildlife habitat and protecting species
The Santa Clara River Conservancy represents the diverse interests of the Santa Clara River, from the flood plain to the highest tributaries, and seeks to secure, sustain, and manage significant lands and waters that provide habitat for…
The California Wilderness Coalition protects the natural landscapes that make California unique, providing clean air and water, a home to wildlife, and a place for recreation and spiritual renewal.
Nature collective's mission is to drive a passion for nature for all. we think inclusively and diversely when serving those devoid of nature those who remember nature and want to connect back to it and those who have an affinity with…
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.
To conserve and restore valuable natural resources of Mendocino County Region. Dedicated to providing public access to the coast & protecting working farmlands, forests, wildlife habitat, open space, scenic vistas & watersheds.
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:…
To conserve natural resources, agricultural land and open spaces for present and future generations.
We conserve the lands and waters of California's heartland.
For reference, the grantee most central to the portfolio’s shape is Stewards of the Coast and Redwoods and the most unlike its peers is Wildlife Conservation Society. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
12 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. 12 of the 20 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 AUDUBON CANYON RANCH INC ↗
- Who funds Sonoma County Regional Parks Foundation ↗
- Who funds CALIFORNIA COUNCIL OF LAND TRUSTS ACTION FUND ↗
- Who funds Redwood Coast Land Conservancy ↗
- Who funds San Francisco Estuary Institute ↗
- Who funds Wildlife Conservation Society ↗
- Who funds Ducks Unlimited Inc ↗
- Who funds Stewards of the Coast and Redwoods ↗
- Who funds POINT REYES BIRD OBSERVATORY ↗
- Who funds The Wildlands Conservancy ↗
- Who funds PETALUMA RIVER PARK FOUNDATION INC ↗
- Who funds NAPA COUNTY LAND TRUST ↗
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 · Resources Legacy Fund · National Fish and Wildlife Foundation · The San Francisco Foundation · Gordon E and Betty I Moore Foundation · East Bay Community Foundation · Marin Community Foundation · National Philanthropic Trust · American Endowment Foundation · Donor Advised Charitable Giving Inc · Fidelity Investments Charitable Gift Fund · Amazonsmile Foundation
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 Sonoma Land Trust 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.
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.