August & Sylvia Sebastiani Foundation
August & Sylvia Sebastiani Foundation is a private foundation, based in Sonoma, CA. IRS filing data is available from 2020 through 2025. As of 2025, the organization holds $11K in total assets. In 2025, it awarded 4 grants totaling $31K.
August & Sylvia Sebastiani Foundation at a glance
In short: August & Sylvia Sebastiani Foundation gave $31K across 4 grants in 2025 (avg $8K), mostly in California. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $30,862
- +10.2% vs 2024
- Grants made (2025)
- 4
- +33.3% vs 2024
- Average grant
- $7,716
- -17.3% vs 2024
- Median grant
- $2,778
- Total assets
- $10,831
- +7636.4% 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 September 2026.
Who August & Sylvia Sebastiani Foundation funds
How this funder distributes its grants
Top Recipients
Top 4 recipients in 2025
The largest 2025 recipient was St Francis Solano School ($23K). Together the top 4 received $31K.
Grant Size Distribution
29 grants across all recorded years
The most common grant size was under $50K: 28 grants of 29 (97%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of 2025 grant dollars across all 4 itemized grants.
States
Cities
How August & Sylvia Sebastiani Foundation gives
- Giving fell 67% from 2022 to 2025. Method
- In 2025 it paid out well above its IRS minimum distribution (the 5% rule). 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 2020 to 2025, annual grant giving ranged from $28K (2024) to $129K (2021). In 2025 it made 4 grants totaling $31K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| St Francis Solano School Sonoma, CA | No Specific Purpose. | $23,307 |
| Crescent Montessori Sonoma, CA | No Specific Purpose. | $3,059 |
| JS Paluch Companyst Francis of Assisi Walnut Creek, CA | No Specifc Purpose. | $2,496 |
| Justin-Siena High School Napa, CA | No Specific Purpose. | $2,000 |
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Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Qualifying Distributions | Distributable Amount |
|---|---|---|---|---|---|---|---|
| 2025 | $10,831 | $43,700 | $34,914 | $30,862 | 4 | $30,862 | $270 |
| 2024 | $140 | $500 | $31,763 | $27,999 | 3 | $27,999 | $777 |
| 2023 | $31,403 | — | $53,378 | $49,654 | 8 | $49,654 | $2,861 |
| 2022 | $84,781 | $114,500 | $101,470 | $92,344 | 8 | $92,344 | $147 |
| 2021 | $71,751 | $198,850 | $129,392 | $129,342 | 6 | $129,342 | $817 |
| 2020 | $2,293 | $125,950 | $127,367 | $124,308 | 5 | — | $8 |
Under IRS private-foundation payout rules, August & Sylvia Sebastiani Foundation reported a distributable amount of $270 for 2025 — the minimum it must pay out in qualifying distributions.
Leadership & Key People
Officers and directors from IRS filings
August & Sylvia Sebastiani Foundation's 2025 filing lists 3 officers; none of the 3 officers listed in 2025 report compensation.
Officers on the 2025 filing
August D. Sebastiani
Trustee
On filings since 2020
1 hr/week
No compensation reported
Don A. Sebastiani Jr.
Trustee
On filings since 2020
1 hr/week
No compensation reported
Emilia Sebastiani Coakley
Trustee
On filings since 2020
1 hr/week
No compensation reported
Data from IRS Form 990 filings, 2020–2025. "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 August & Sylvia Sebastiani Foundation
How much does August & Sylvia Sebastiani Foundation give each year?
August & Sylvia Sebastiani Foundation gave $31K across 4 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $28K across 3 grants.
What is August & Sylvia Sebastiani Foundation's typical grant size?
August & Sylvia Sebastiani Foundation's median grant in 2025 was $2,778, and its average grant was $7,716, across 4 grants on its 2025 IRS Form 990-PF.
Where does August & Sylvia Sebastiani Foundation give grants?
August & Sylvia Sebastiani Foundation gives mostly in California: 100% of the grant dollars itemized on its 2025 IRS Form 990-PF went to recipients there. The most frequent recipient cities were Sonoma, CA (2 grants).
Does August & Sylvia Sebastiani Foundation give general operating support?
Not in 2025: none of the 4 grants with a stated purpose on August & Sylvia Sebastiani Foundation's 2025 IRS Form 990-PF were described as general or operating support. Recurring purposes include "No Specific Purpose." (3 grants).
How large is August & Sylvia Sebastiani Foundation?
August & Sylvia Sebastiani Foundation reported $11K in total assets on its 2025 IRS Form 990-PF. It paid out $31K in qualifying distributions that year, against a required minimum of $270 (roughly 5% of its investment assets).
What is August & Sylvia Sebastiani Foundation's EIN?
August & Sylvia Sebastiani Foundation's EIN (Employer Identification Number) is 68-0386154. IRS Form 990 filing data is available on this page for 2020–2025.
Data last updated September 2026. Sourced from IRS Form 990-PF filings.
Data update history
(2)
When this profile's IRS filing data changed on Grantable
- Added Form 990-PF for fiscal year 2025 (received by the IRS May 6, 2026)
- IRS filings on file for fiscal years 2020–2024
Live grants for the work August & Sylvia Sebastiani Foundation funds
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