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California · 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…

$1.9M
Granted FY2025(still arriving)
7
Itemized grants FY2025
2
Organizations funded FY2024
0%
First-time grantees FY2024
Read the full brief
Itemized, FY2025
$1.9M
The rest is grants the schedule does not break out
Median grant, FY2025
$200,000
Largest grant, FY2025
$831,357
Organizations funded a year
2 to 9
FY2018 to FY2024
States reached, FY2025
1
Total assets, FY2025
$75M

How open it is to new grantees

In FY2024, 0% of the organizations Sonoma Land Trust funded were first-time grantees, receiving 0% of its grant dollars.

New vs renewed · share of each year

In FY2024, 100% of grant dollars renewed an existing relationship; $0 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
EnvironmentAnimalsRecreation & 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 arriving7$1.9M57%
FY20242$145k0%
FY20235$388k20%
FY20229$364k22%
FY20219$990k56%
FY20204$100k50%
FY20194$75k50%
FY20184$173kn/a
100% classified

What it funded, over time

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

Environment$2.8MHousing & Shelter$856kRecreation & Sports$314kAnimals$100k

Top grantees

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

GranteeTotal grantedYearsShare of their budget
Sonoma County Regional Parks$1,077,3435n/a
City of Santa Rosa$831,3571n/a
Audubon Canyon Ranch Inc$601,55354%
California State Parks$379,6793n/a
Sonoma County Regional Parks Foundation$250,0001n/a
California Council of Land Trusts Action Fund$200,000111%
Redwood Coast Land Conservancy$150,0001n/a
San Francisco Estuary Institute$116,89930%
San Francisco State University$111,6563n/a
Wildlife Conservation Society$99,65020%
Show all 19 grantees
All grantees of Sonoma Land Trust by total granted
GranteeTotal grantedYearsShare of their budget
Sonoma County Regional Parks$1,077,3435n/a
City of Santa Rosa$831,3571n/a
Audubon Canyon Ranch Inc$601,55354%
California State Parks$379,6793n/a
Sonoma County Regional Parks Foundation$250,0001n/a
California Council of Land Trusts Action Fund$200,000111%
Redwood Coast Land Conservancy$150,0001n/a
San Francisco Estuary Institute$116,89930%
San Francisco State University$111,6563n/a
Wildlife Conservation Society$99,65020%
Ducks Unlimited Inc$71,69130%
Sonoma Resource Conservation District$62,1965n/a
Stewards of the Coast and Redwoods$35,00012%
Point Reyes Bird Observatory$32,69220%
Graton Community Services District$25,0001n/a
The Wildlands Conservancy$22,50030%
Petaluma River Park Foundation Inc$19,42613%
Gold Ridge Resource Conservation Distric$12,0731n/a
Napa County Land Trust$10,66010%

Plus 1 recipient with no EIN on record ($10k), not named here.

Where it is load-bearing

Each grantee by its size and the share of its budget Sonoma Land Trust supplied at peak.

25%50%75%100%$10M$100Mgrantee revenue →↑ funder's share of their budgetAudubon Canyon Ranch Inc: $601,553 over 5y, 3.6% of budgetCalifornia Council of Land Trusts Action Fund: $200,000 over 1y, 11% of budgetSan Francisco Estuary Institute: $116,899 over 3y, 0.4% of budgetWildlife Conservation Society: $99,650 over 2y, 0.0% of budgetDucks Unlimited Inc: $71,691 over 3y, 0.0% of budgetStewards of the Coast and Redwoods: $35,000 over 1y, 2.2% of budgetPoint Reyes Bird Observatory: $32,692 over 2y, 0.2% of budgetThe Wildlands Conservancy: $22,500 over 3y, 0.1% of budgetPetaluma River Park Foundation Inc: $19,426 over 1y, 2.6% of budgetNapa County Land Trust: $10,660 over 1y, 0.1% 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 10.

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.

Sonoma County Community FoundationCA21.7× affinity8 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

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

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 Sonoma Land Trust with peer funders

About Sonoma Land Trust

How much does Sonoma Land Trust give?
Sonoma Land Trust reported 7 itemized grants totaling $1,884,838, out of $1,924,696 in total grant expense reported on the return in its FY2025 IRS filing. It funded between 2 and 9 organizations a year over FY2018 to FY2024.
What does Sonoma Land Trust fund?
By grant dollars over FY2018 to FY2025, its largest causes are Environment (69%), Housing & Shelter (21%), Recreation & Sports (8%).
Who are Sonoma Land Trust's largest grantees?
By total granted over FY2018 to FY2025: Sonoma County Regional Parks ($1.1M), City of Santa Rosa ($831k), Audubon Canyon Ranch Inc ($602k).
Does Sonoma Land Trust fund new organizations?
In FY2024, 0% of the organizations it funded were first-time grantees.
Which funders back the same organizations as Sonoma Land Trust?
Its strongest co-funders, measured against what their size predicts, include Sonoma County Community Foundation, Resources Legacy Fund, National Fish and Wildlife Foundation.
Where is Sonoma Land Trust based?
Sonoma Land Trust 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 20 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 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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