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California · Private foundation

Silvio & Mary Garaventa Family Foundation

Its FY2025 filing reports that it accepted unsolicited grant applications.

$41k
Granted FY2025(still arriving)
5
Grants FY2025
3
Organizations funded FY2024
100%
First-time grantees FY2024
Read the full brief
Median grant, FY2025
$10,000
Largest grant, FY2025
$10,000
Organizations funded a year
1 to 12
FY2017 to FY2024
States reached, FY2025
1
Total assets, FY2025
$4.1M
Applications
Takes unsolicited applications
Per its most recent filing; check its own site

How open it is to new grantees

In FY2024, 100% of the organizations Silvio & Mary Garaventa Family Foundation funded were first-time grantees, receiving 100% of its grant dollars.

New vs renewed · share of each year

In FY2024, 0% of grant dollars renewed an existing relationship; $30k went to new ones.

50%100%’18’19’21’22’23’24
RenewedFirst-time

Where new relationships form · theme of each grantee’s first grant

’18’19’21’22’23’24
EducationHealthYouth DevelopmentCommunity ImprovementArts & CultureOther
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 arriving5$41k40%
FY20243$30k100%
FY20239$3.1M33%
FY202212$186k50%
FY20219$91k56%
FY20194$83k50%
FY20188$147k100%
FY20171$50kn/a
98% classified

What it funded, over time

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

Religion$3.0MEducation$281kHealth$227kYouth Development$70kArts & Culture$25kCommunity Improvement$15kHuman Services$12kOther$0

Top grantees

Largest recipients by total granted, FY2017 to FY2025, and the share of each one’s budget the grants supplied at peak.

GranteeTotal grantedYearsShare of their budget
John Muir Health Foundation$225,00040%
Boys & Girls Clubs of Contra Costa$50,00015%
Diocese of Oakland Ca Department of Education$35,0004n/a
Concord Historical Society$25,0001n/a
American Martyrs Catholic Church$25,0003n/a
Community Youth Center$20,00010%
De la Salle High School of Concord Inc$20,0001n/a
Spanish Speaking Unity Council of Alameda County Inc$15,00020%
American Martyrs School$10,0001n/a
Saint Mary's College of California$10,00010%
Show all 15 grantees
All grantees of Silvio & Mary Garaventa Family Foundation by total granted
GranteeTotal grantedYearsShare of their budget
John Muir Health Foundation$225,00040%
Boys & Girls Clubs of Contra Costa$50,00015%
Diocese of Oakland Ca Department of Education$35,0004n/a
Concord Historical Society$25,0001n/a
American Martyrs Catholic Church$25,0003n/a
Community Youth Center$20,00010%
De la Salle High School of Concord Inc$20,0001n/a
Spanish Speaking Unity Council of Alameda County Inc$15,00020%
American Martyrs School$10,0001n/a
Saint Mary's College of California$10,00010%
Lasallian Christian Brothers Foundation Inc$5,0001n/a
Friends of Isola Delle Femmine$3,50016%
Catholic Charities of the Diocese of Oakland$2,50010%
Kennedy-King Memorial College Scholarship Fund Ltd$1,00010%
Bay Area Crisis Nursery$50010%

Plus 15 recipients with no EIN on record ($3.2M), not named here.

Where it is load-bearing

Each grantee by its size and the share of its budget Silvio & Mary Garaventa Family Foundation supplied at peak.

25%50%75%100%$100k$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetJohn Muir Health Foundation: $225,000 over 4y, 0.5% of budgetBoys & Girls Clubs of Contra Costa: $50,000 over 1y, 4.9% of budgetCommunity Youth Center: $20,000 over 1y, 0.2% of budgetSpanish Speaking Unity Council of Alameda County Inc: $15,000 over 2y, 0.0% of budgetSaint Mary's College of California: $10,000 over 1y, 0.0% of budgetFriends of Isola Delle Femmine: $3,500 over 1y, 5.5% of budgetCatholic Charities of the Diocese of Oakland: $2,500 over 1y, 0.0% of budgetKennedy-King Memorial College Scholarship Fund Ltd: $1,000 over 1y, 0.2% of budgetBay Area Crisis Nursery: $500 over 1y, 0.0% 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 9.

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.

United Way of the Bay AreaCA17.6× affinity6 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: United Way of the Bay Area · East Bay Community Foundation · The Hofmann Family Foundation · Lowell Berry Foundation · Shell USA Company Foundation · The Blackbaud Giving Fund · The San Francisco Foundation · United Way Worldwide · American Endowment Foundation · Silicon Valley Community Foundation · Morgan Stanley Global Impact Funding Trust Inc · Jpmorgan Chase 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 Silvio & Mary Garaventa Family Foundation with peer funders

About Silvio & Mary Garaventa Family Foundation

How much does Silvio & Mary Garaventa Family Foundation give?
Silvio & Mary Garaventa Family Foundation reported 5 grants totaling $41,000 in its FY2025 IRS filing. It funded between 1 and 12 organizations a year over FY2017 to FY2024.
What does Silvio & Mary Garaventa Family Foundation fund?
By grant dollars over FY2017 to FY2025, its largest causes are Religion (83%), Education (8%), Health (6%).
Who are Silvio & Mary Garaventa Family Foundation's largest grantees?
By total granted over FY2017 to FY2025: John Muir Health Foundation ($225k), Boys & Girls Clubs of Contra Costa ($50k), Diocese of Oakland Ca Department of Education ($35k).
Does Silvio & Mary Garaventa Family Foundation fund new organizations?
In FY2024, 100% of the organizations it funded were first-time grantees.
Does Silvio & Mary Garaventa Family Foundation accept unsolicited applications?
Its most recent filing reports that it accepts unsolicited grant applications.
Which funders back the same organizations as Silvio & Mary Garaventa Family Foundation?
Its strongest co-funders, measured against what their size predicts, include United Way of the Bay Area, East Bay Community Foundation, The Hofmann Family Foundation.
Where is Silvio & Mary Garaventa Family Foundation based?
Silvio & Mary Garaventa 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 30 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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