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California · Private foundation

Simon Blattner 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.

$60k
Granted FY2025(still arriving)
21
Grants FY2025
18
Organizations funded FY2024
39%
First-time grantees FY2024
Read the full brief
Median grant, FY2025
$1,000
Largest grant, FY2025
$15,000
Organizations funded a year
3 to 21
FY2018 to FY2024
States reached, FY2025
2
Total assets, FY2025
$62k
Applications
Preselected organizations only
Per its most recent filing; check its own site

How open it is to new grantees

In FY2024, 39% of the organizations Simon Blattner Family Foundation funded were first-time grantees, receiving 64% of its grant dollars.

New vs renewed · share of each year

In FY2024, 36% of grant dollars renewed an existing relationship; $17k 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
Arts & CultureEnvironmentHuman ServicesEducationFood & NutritionYouth DevelopmentOther
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 arriving20$47k10%
FY202418$27k39%
FY20235$85k0%
FY20224$29k0%
FY20213$39k33%
FY202021$83k29%
FY201915$65k47%
FY201811$68k55%
100% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2025.

Philanthropy$153kArts & Culture$120kEnvironment$90kHealth$81kHuman Services$75kEducation$39kFood & Nutrition$26kYouth Development$19kOther$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 42 grantees
All grantees of Simon Blattner Family Foundation by total granted
GranteeTotal grantedYearsShare of their budget
Sonoma Valley Hospital Foundation$80,00060%
Sonoma Valley Museum of Art$77,00052%
Sonoma Land Trust$60,00030%
California College of the Arts$32,00030%
Sonoma Ecology Center$28,35061%
Sonoma Community Center$25,25061%
Redwood Empire Food Bank$25,00030%
Valley of the Moon Music Festival$20,00033%
Sonoma Valley Community Communications Inc$13,50023%
Boys & Girls Clubs of Sonoma Valley Boys & Girls Clubs of Sonoma Valley$12,95020%
Vintage House Multi Purpose Senior Center$10,50040%
La Luz Center$10,48421%
The Ceres Community Project$6,00020%
Sonoma Valley Mentoring Alliance$5,10050%
The Center for Investigative Reporting Inc$5,00020%
Northwestern University$5,00010%
Sonoma Valley Teen Services$4,60030%
Sonoma Valley Education Foundation$3,85030%
Congregation Shir Shalom$3,4042n/a
10000 Degrees$3,10040%
Praxis Peace Institute$2,25031%
Pets Lifeline Inc$2,10040%
Transcendence Theatre Company$2,00020%
Sonoma Plein Air Foundation$2,00020%
Pepperwood Foundation$2,00020%
Congregation Shir Shalom$1,9763n/a
Valley of the Moon Natural History Association$1,10020%
Intersection for the Arts$1,10020%
The Book Club of California$1,09520%
Friends In Sonoma Helping Inc$1,00020%
Sebastiani Theatre Foundation Inc$1,00010%
Sonoma Valley Authors Festival$1,0001n/a
San Francisco Center for the Book$75020%
Sonoma Overnight Support Inc$60020%
Glide Foundation$50010%
Sonoma Valley Community Health Center$5001n/a
The Arts Guild of Sonoma$20020%
Initiative to Educate Afghan Women$10010%
Greenbelt Alliancepeople for Open Space$10010%
Asian Art Museum Foundation of San Francisco$6910%
Sonoma Valley Historical Society$6010%
Hand Papermaking Inc$551n/a

What it could do for these grantees

Plus 12 recipients with no EIN on record ($23k), not named here.

Where it is load-bearing

Each grantee by its size and the share of its budget Simon Blattner Family Foundation supplied at peak.

25%50%75%100%$100k$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetSonoma Valley Hospital Foundation: $80,000 over 6y, 0.4% of budgetSonoma Valley Museum of Art: $77,000 over 5y, 1.9% of budgetSonoma Land Trust: $60,000 over 3y, 0.3% of budgetCalifornia College of the Arts: $32,000 over 3y, 0.0% of budgetSonoma Ecology Center: $28,350 over 6y, 0.8% of budgetSonoma Community Center: $25,250 over 6y, 1.2% of budgetRedwood Empire Food Bank: $25,000 over 3y, 0.0% of budgetValley of the Moon Music Festival: $20,000 over 3y, 3.4% of budgetSonoma Valley Community Communications Inc: $13,500 over 2y, 3.4% of budgetBoys & Girls Clubs of Sonoma Valley Boys & Girls Clubs of Sonoma Valley: $12,950 over 2y, 0.1% of budgetVintage House Multi Purpose Senior Center: $10,500 over 4y, 0.4% of budgetLa Luz Center: $10,484 over 2y, 0.5% of budgetThe Ceres Community Project: $6,000 over 2y, 0.0% of budgetSonoma Valley Mentoring Alliance: $5,100 over 5y, 0.3% of budgetThe Center for Investigative Reporting Inc: $5,000 over 2y, 0.0% of budgetNorthwestern University: $5,000 over 1y, 0.0% of budgetSonoma Valley Teen Services: $4,600 over 3y, 0.4% of budgetSonoma Valley Education Foundation: $3,850 over 3y, 0.2% of budget10000 Degrees: $3,100 over 4y, 0.0% of budgetPraxis Peace Institute: $2,250 over 3y, 1.3% of budgetPets Lifeline Inc: $2,100 over 4y, 0.0% of budgetTranscendence Theatre Company: $2,000 over 2y, 0.0% of budgetSonoma Plein Air Foundation: $2,000 over 2y, 0.3% of budgetPepperwood Foundation: $2,000 over 2y, 0.0% of budgetValley of the Moon Natural History Association: $1,100 over 2y, 0.1% of budgetIntersection for the Arts: $1,100 over 2y, 0.0% of budgetThe Book Club of California: $1,095 over 2y, 0.1% of budgetFriends In Sonoma Helping Inc: $1,000 over 2y, 0.1% of budgetSebastiani Theatre Foundation Inc: $1,000 over 1y, 0.1% of budgetSan Francisco Center for the Book: $750 over 2y, 0.1% of budgetSonoma Overnight Support Inc: $600 over 2y, 0.1% of budgetGlide Foundation: $500 over 1y, 0.0% of budgetThe Arts Guild of Sonoma: $200 over 2y, 0.1% of budgetInitiative to Educate Afghan Women: $100 over 1y, 0.1% of budgetGreenbelt Alliancepeople for Open Space: $100 over 1y, 0.0% of budgetAsian Art Museum Foundation of San Francisco: $69 over 1y, 0.0% of budgetSonoma Valley Historical Society: $60 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 37.

Nonprofits that may fit its grantmaking

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 FoundationCA52× affinity23 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Sonoma County Community Foundation · McNabb Foundation · Marin Community Foundation · The Vadasz Family Foundation · Sanderson Family Foundation · Women Giving as One Inc · Sonoma Valley Vintners & Growers Foundation · Gaia Fund · Sonoma County Vintners Foundation · The John & Sandra Leland Foundation · Khr McNeely Family Foundation · Manitou Fund

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 Simon Blattner Family Foundation with peer funders

Warm introductions · Powered by PlinthPlus

How do I get to Simon Blattner Family Foundation?

Find your warmest path to Simon Blattner 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.

About Simon Blattner Family Foundation

How much does Simon Blattner Family Foundation give?
Simon Blattner Family Foundation reported 21 grants totaling $59,500 in its FY2025 IRS filing. It funded between 3 and 21 organizations a year over FY2018 to FY2024.
What does Simon Blattner Family Foundation fund?
By grant dollars over FY2017 to FY2025, its largest causes are Philanthropy (24%), Arts & Culture (19%), Environment (14%).
Who are Simon Blattner Family Foundation's largest grantees?
By total granted over FY2017 to FY2025: Sonoma Valley Hospital Foundation ($80k), Sonoma Valley Museum of Art ($77k), Sonoma Land Trust ($60k).
Does Simon Blattner Family Foundation fund new organizations?
In FY2024, 39% of the organizations it funded were first-time grantees.
Does Simon Blattner Family 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 Simon Blattner Family Foundation?
Its strongest co-funders, measured against what their size predicts, include Sonoma County Community Foundation, McNabb Foundation, Marin Community Foundation.
Where is Simon Blattner Family Foundation based?
Simon Blattner Family 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 56 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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