The Preuss Foundation Inc
The Preuss Foundation Inc is a private foundation, based in La Jolla, CA. IRS filing data is available from 2020 through 2025. As of 2025, the organization holds $16K in total assets. In 2025, it awarded 1 grant totaling $50K.
The Preuss Foundation Inc at a glance
In short: The Preuss Foundation Inc gave $50K across 1 grant in 2025 (avg $50K), mostly in California. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $50,000
- -2.0% vs 2024
- Grants made (2025)
- 1
- -50.0% vs 2024
- Average grant
- $50,000
- +96.1% vs 2024
- Median grant
- $50,000
- Total assets
- $16,167
- -13.3% 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 The Preuss Foundation Inc funds
How this funder distributes its grants
Top Recipients
Top recipient in 2025
The largest 2025 recipient was University of California San Diego Foundation ($50K).
Grant Size Distribution
12 grants across all recorded years
The most common grant size was under $50K: 7 grants of 12 (58%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of the 2025 grant dollars on its one itemized grant.
States
Cities
How The Preuss Foundation Inc gives
- Giving fell 55% 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 $50K (2025) to $176K (2021). In 2025 it made 1 grant totaling $50K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| University of California San Diego Foundation La Jolla, CA | Support of Academic Programs and Medical Research. | $50,000 |
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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 | $16,167 | $217,151 | $219,629 | $50,000 | 1 | $218,525 | $1,182 |
| 2024 | $18,645 | $208,224 | $220,899 | $51,000 | 2 | $219,232 | $1,251 |
| 2023 | $31,634 | $228,516 | $230,088 | $51,215 | 2 | $227,966 | $1,644 |
| 2022 | $32,889 | $290,513 | $310,218 | $112,120 | 2 | $308,366 | $1,773 |
| 2021 | $52,594 | $389,238 | $371,167 | $175,500 | 5 | $369,596 | $2,257 |
| 2020 | $34,524 | $361,543 | $351,433 | $120,500 | 3 | — | $1,922 |
Under IRS private-foundation payout rules, The Preuss Foundation Inc reported a distributable amount of $1K for 2025 — the minimum it must pay out in qualifying distributions.
Leadership & Key People
Officers and directors from IRS filings
The Preuss Foundation Inc is led by Peter J. Preuss, President & Vice President on every filing since 2020; 1 of 2 officers listed in 2025 is compensated.
Officers on the 2025 filing
Peter J. Preuss
President & Vice President
On filings since 2020
1 hr/week
$1K (2020) → $1K (2025)
Peggy L. Preuss
Secretary
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.
Compensation Overview
From 2025 IRS filing
The highest reported compensation on the 2025 filing was $1K, to Peter G Preuss (President).
Frequently asked questions about The Preuss Foundation Inc
How much does The Preuss Foundation Inc give each year?
The Preuss Foundation Inc gave $50K across 1 grant in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $51K across 2 grants.
How large is The Preuss Foundation Inc?
The Preuss Foundation Inc reported $16K in total assets on its 2025 IRS Form 990-PF. It paid out $219K in qualifying distributions that year, against a required minimum of $1K (roughly 5% of its investment assets).
Where does The Preuss Foundation Inc operate?
The Preuss Foundation Inc has awarded grants in Arizona, California, New York.
What is The Preuss Foundation Inc's EIN?
The Preuss Foundation Inc's EIN (Employer Identification Number) is 33-0085513. 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
(7)
When this profile's IRS filing data changed on Grantable
- Updated Form 990-PF for fiscal year 2020 (received by the IRS November 23, 2021)
- Updated Form 990-PF for fiscal year 2021 (received by the IRS May 16, 2022)
- Updated Form 990-PF for fiscal year 2022 (received by the IRS May 5, 2023)
- Updated Form 990-PF for fiscal year 2023 (received by the IRS May 3, 2024)
- Updated Form 990-PF for fiscal year 2024 (received by the IRS May 8, 2025)
- Updated Form 990-PF for fiscal year 2025 (received by the IRS March 24, 2026)
- IRS filings on file for fiscal years 2020–2025
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