Silvio & Mary Garaventa Family
The Silvio & Mary Garaventa Family is a private foundation based in Concord, California. Its 2025 filing reports grants to four schools and a PTA in California.
Silvio & Mary Garaventa Family at a glance
In short: Silvio & Mary Garaventa Family gave $41K across 5 grants in 2025 (avg $8K), mostly in California. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $41,000
- +36.7% vs 2024
- Grants made (2025)
- 5
- +66.7% vs 2024
- Average grant
- $8,200
- -18.0% vs 2024
- Median grant
- $10,000
- Total assets
- $4,061,311
- +10.4% vs 2024
- Primary geography
- California (100% of itemized 2025 grant dollars)
- Latest 990 filing
- Form 990-PF, 2025 View filing
Data from IRS Form 990-PF, 2025; updated October 2026.
How to apply to Silvio & Mary Garaventa Family
- How to Apply
-
The foundation requests a letter of request, including the basis for submission. Awards have no stated restrictions.
- Contact
Application contact: Louisa Binswanger
Mailing address: PO Box 5397, Concord, CA 94524
Phone: (925) 682-7492
Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.
Who Silvio & Mary Garaventa Family funds
How this funder distributes its grants
Top Recipients
Top 5 recipients in 2025
The largest 2025 recipient was St Rose Catholic School ($10K). Together the top 5 received $41K.
Grant Size Distribution
38 grants across all recorded years
The most common grant size was under $50K: 32 grants of 38 (84%).
Geographic Focus
Where this funder awards grants
All reported 2025 grant dollars went to recipients in California.
Grant Distribution by State
Share of 2025 grant dollars across all 5 itemized grants.
States
Cities
How Silvio & Mary Garaventa Family gives
- Giving fell 78% from 2022 to 2025. Method
- In 2025 it paid out 21% of its IRS minimum distribution (the 5% rule). Foundations have until the end of the next year to meet it. Method
From the foundation's IRS Form 990-PF filings. Methodology.
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2021 to 2025, annual grant giving ranged from $30K (2024) to $3.1M (2023). In 2025 it made 5 grants totaling $41K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| St Rose Catholic School Roseville, CA | Unrestricted | $10,000 |
| St Perpetua School Lafayette, CA | Unrestricted | $10,000 |
| St Mary of the Immaculate Los Gatos, CA | Unrestricted | $10,000 |
| American Martyrs School Manhattan Beach, CA | Unrestricted | $10,000 |
| Valley View PTA Pleasanton, CA | Unrestricted | $1,000 |
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Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Qualifying Distributions | Net Investment Income | Distributable Amount |
|---|---|---|---|---|---|---|---|---|
| 2025 | $4,061,311 | $505,389 | $122,994 | $41,000 | 5 | $48,500 | $330,890 | $234,572 |
| 2024 | $3,678,916 | $275,992 | $109,339 | $30,000 | 3 | $38,847 | $205,500 | $205,283 |
| 2023 | $3,512,263 | $90,222 | $3,206,025 | $3,051,000 | 9 | $3,070,854 | $70,922 | $363,303 |
| 2022 | $6,578,066 | $520,278 | $289,725 | $186,000 | 12 | $191,275 | $421,828 | $369,928 |
| 2021 | $6,347,513 | $398,202 | $197,139 | $91,000 | 9 | — | $303,823 | $328,622 |
Under IRS private-foundation payout rules, Silvio & Mary Garaventa Family reported a distributable amount of $235K for 2025 — the minimum it must pay out in qualifying distributions.
Research compiled by Grantable AI from public sources. Last updated September 2026.
Grantmaking
In 2025, the foundation made five grants totaling $41,000. Grant amounts ranged from $1,000 to $10,000, with a median of $10,000. The grants were $10,000 each to St. Rose Catholic School, St. Perpetua School, St. Mary of the Immaculate, and American Martyrs School, and $1,000 to Valley View PTA. All were listed as unrestricted.
Leadership & Key People
Leadership team and compensation from IRS filings
The 2025 filing lists Louisa Binswanger, Marie Adler, and Linda Colvis as trustees.
Silvio & Mary Garaventa Family's 2025 filing lists 3 officers; none of the 3 officers listed in 2025 report compensation.
Officers on the 2025 filing
Louisa Binswanger
Trustee
On filings since 2021
1 hr/week
No compensation reported
Marie Adler
Trustee
On filings since 2021
1 hr/week
No compensation reported
Linda Colvis
Turstee
Trustee → Turstee, 2024
On filings since 2021
1 hr/week
No compensation reported
Data from IRS Form 990 filings, 2021–2025. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.
Frequently asked questions about Silvio & Mary Garaventa Family
How much does Silvio & Mary Garaventa Family give each year?
Silvio & Mary Garaventa Family gave $41K across 5 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $30K across 3 grants.
What is Silvio & Mary Garaventa Family's typical grant size?
Silvio & Mary Garaventa Family's median grant in 2025 was $10,000, and its average grant was $8,200, across 5 grants on its 2025 IRS Form 990-PF.
Where does Silvio & Mary Garaventa Family give grants?
Silvio & Mary Garaventa Family gives mostly in California: 100% of the grant dollars itemized on its 2025 IRS Form 990-PF went to recipients there.
Does Silvio & Mary Garaventa Family give general operating support?
Yes: 100% of Silvio & Mary Garaventa Family's 2025 grants with a stated purpose (5 of 5) were for general or operating support, per its 2025 IRS Form 990-PF.
Who are Silvio & Mary Garaventa Family's largest grantees?
Silvio & Mary Garaventa Family's largest 2025 grantees include St Rose Catholic School ($10,000), St Perpetua School ($10,000) and St Mary of the Immaculate ($10,000), according to its 2025 IRS Form 990-PF. Together they received 73% of its itemized 2025 grant dollars.
How large is Silvio & Mary Garaventa Family?
Silvio & Mary Garaventa Family reported $4.1M in total assets on its 2025 IRS Form 990-PF. It paid out $49K in qualifying distributions that year, against a required minimum of $235K (roughly 5% of its investment assets). Falling short in one year is not a violation: foundations have until the end of the next year to meet the minimum.
How do I apply for a grant from Silvio & Mary Garaventa Family?
The foundation requests a letter of request, including the basis for submission. Eligibility and process details are in the grantmaking section of this profile. See how to apply ↑
What is Silvio & Mary Garaventa Family's EIN?
Silvio & Mary Garaventa Family's EIN (Employer Identification Number) is 68-0100302. IRS Form 990 filing data is available on this page for 2021–2025.
Data last updated October 2026. Sourced from IRS Form 990-PF filings. Research dossier generated September 2026.
Data update history
(1)
When this profile's IRS filing data changed on Grantable
- IRS filings on file for fiscal years 2021–2025
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