Square One Foundation
Square One Foundation is a private foundation focused on Philanthropy, based in St. Louis, MO. IRS filing data is available from 2020 through 2025.
Square One Foundation at a glance
- Latest 990 filing
- Form 990-PF, 2025 View filing
Data from IRS Form 990-PF, 2025; updated October 2026.
Who Square One Foundation funds
How this funder distributes its grants
Grant Size Distribution
4 grants across all recorded years
The most common grant size was under $50K: 4 grants of 4 (100%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
States
Cities
How Square One Foundation gives
- Giving grew 100% from 2020 to 2023. Method
- In 2023 it paid out 296% of 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 2023, annual grant giving ranged from $25K (2020) to $50K (2023). In 2023 it made 2 grants totaling $50K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| International Institute St. Louis, MO | To provide opportunities for immigrants and refugees to thrive. | $30,000 |
| Operation Food Search St. Louis, MO | To help provide free food and nutriiton education aimed at ending childhood hunger | $20,000 |
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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 |
|---|---|---|---|---|---|---|---|---|
| 2023 | $275,449 | $17,260 | $53,949 | $50,000 | 2 | $50,000 | $14,567 | $16,915 |
| 2022 | $312,138 | $21,981 | $7,226 | — | — | — | $21,981 | — |
| 2021 | $297,383 | $40,439 | $48,325 | $45,000 | 1 | — | $37,214 | $16,217 |
| 2020 | $305,497 | $12,507 | $27,917 | $25,000 | 1 | — | $10,032 | $17,998 |
Leadership & Key People
Officers and directors from IRS filings
Square One Foundation is led by Jill Evans Petzall, President on every filing since 2020; none of the 5 officers listed in 2025 report compensation.
Officers on the 2025 filing
Jill Evans Petzall
President
On filings since 2020
No compensation reported
Mary Schoolman
Director
On filings since 2020
No compensation reported
Kim Gladstone
Secretary
On filings since 2020
No compensation reported
Nichole Deal
Vice President
On filings since 2020
No compensation reported
Tullia Hamilton
Treasurer
On filings since 2020
No compensation reported
Former officers (1)
- Former: Julie Simpher (2020–2021) — Director
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 Square One Foundation
What is Square One Foundation?
Square One Foundation is a private foundation focused on Philanthropy, based in St. Louis, MO.
Where does Square One Foundation operate?
Square One Foundation has awarded grants in Missouri.
What is Square One Foundation's EIN?
Square One Foundation's EIN (Employer Identification Number) is 43-1553126. IRS Form 990 filing data is available on this page for 2020–2025.
Data last updated October 2026. Sourced from IRS Form 990-PF filings.
Data update history
(5)
When this profile's IRS filing data changed on Grantable
- Updated Form 990-PF for fiscal year 2020 (received by the IRS February 16, 2021)
- Updated Form 990-PF for fiscal year 2021 (received by the IRS February 15, 2022)
- Updated Form 990-PF for fiscal year 2022 (received by the IRS January 18, 2023)
- Updated Form 990-PF for fiscal year 2023 (received by the IRS January 10, 2024)
- IRS filings on file for fiscal years 2020–2025
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