August & Sylvia Sebastiani Foundation

Private foundation · Grantmaker Sonoma, CA EIN: 68-0386154

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.

Key facts about August & Sylvia Sebastiani Foundation

In short: August & Sylvia Sebastiani Foundation gave $31K across 4 grants in 2025 (avg $8K), mostly in California. Source: 2025 IRS Form 990-PF.

EIN
68-0386154
Latest 990 filing
Form 990-PF, 2025
Annual giving (2025)
$30,862
Grants made (2025)
4
Average grant
$7,716
Median grant
$2,778
Total assets
$10,831
Primary geography
California (100% of itemized 2025 grant dollars)

Data from IRS Form 990-PF, 2025; updated September 2026.

Financial Overview

From 2025 IRS Form 990-PF · View filing

Total Assets

$11K

+7636.4% YoY

Annual Giving

$31K

+10.2% YoY

Grant Count

4

+33.3% YoY

Avg Grant Size

$8K

-17.3% YoY

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.

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.

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Geographic Focus

Where this funder awards grants

Grant Distribution by State

1state

Share of 2025 grant dollars across all 4 itemized grants.

States

Cities

SonomaNapaWalnut Creek

Giving Over Time

Total grant dollars and number of grants per year

$0$50K$100K$150K5 grants2020 6 grants2021 8 grants2022 8 grants2023 3 grants2024 4 grants2025

From 2020 to 2025, annual grant giving ranged from $28K (2024) to $129K (2021). In 2025 it made 4 grants totaling $31K.

Grant Insights

How this funder distributes its grants

Top Recipients

Top 4 recipients in 2025

St Francis Solano School: $23KSt Francis Solano School$23KCrescent Montessori: $3KCrescent Montessori$3KJS Paluch Companyst Francis of Assisi: $2KJS Paluch Companyst Francis ofAssisi$2KJustin-Siena High School: $2KJustin-Siena High School$2K

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

28<$50K1$50–100K$100–250K$250–500K$500K–1M$1–5M$5M+

The most common grant size was under $50K: 28 grants of 29 (97%).

Giving History

Grant recipients and amounts by year

RecipientPurposeAmount
St Francis Solano School Sonoma, CANo Specific Purpose.$23,307
Crescent Montessori Sonoma, CANo Specific Purpose.$3,059
JS Paluch Companyst Francis of Assisi Walnut Creek, CANo Specifc Purpose.$2,496
Justin-Siena High School Napa, CANo Specific Purpose.$2,000

Financial History

Multi-year comparison from IRS filings

Revenue
Expenses
Qualifying Distributions
$0$100K$200K$300K2020 2021 2022 2023 2024 2025
Metric202520242023
Total Assets$10,831$140$31,403
Revenue$43,700$500—
Expenses$34,914$31,763$53,378
Qualifying Distributions$30,862$27,999$49,654
Distributable Amount$270$777$2,861

Data update history

When this profile's IRS filing data changed on Grantable

  1. Added Form 990-PF for fiscal year 2025 (received by the IRS May 6, 2026)
  2. IRS filings on file for fiscal years 2020–2024

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.

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