The Preuss Foundation Inc

Private foundation · Grantmaker La Jolla, CA EIN: 33-0085513

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.

Key facts about The Preuss Foundation Inc

In short: The Preuss Foundation Inc gave $50K across 1 grant in 2025 (avg $50K), mostly in California. Source: 2025 IRS Form 990-PF.

EIN
33-0085513
Latest 990 filing
Form 990-PF, 2025
Annual giving (2025)
$50,000
Grants made (2025)
1
Average grant
$50,000
Median grant
$50,000
Total assets
$16,167
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

$16K

-13.3% YoY

Annual Giving

$50K

-2.0% YoY

Grant Count

1

-50.0% YoY

Avg Grant Size

$50K

+96.1% YoY

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.

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.

Your AI grants department

Ready to take the next step with The Preuss Foundation Inc?

Fully replaces Grant database subscriptions Instrumentl · Foundation Directory · GrantStation & similar

Geographic Focus

Where this funder awards grants

Grant Distribution by State

3states

Share of the 2025 grant dollars on its one itemized grant.

Cities

La JollaTucsonNew YorkPalo AltoSan DiegoSan Marcos

Giving Over Time

Total grant dollars and number of grants per year

$0$50K$100K$150K$200K3 grants2020 5 grants2021 2 grants2022 2 grants2023 2 grants2024 1 grant2025

From 2020 to 2025, annual grant giving ranged from $50K (2025) to $176K (2021). In 2025 it made 1 grant totaling $50K.

Grant Insights

How this funder distributes its grants

Top Recipients

Top recipient in 2025

University of California San Diego Foundation: $50KUniversity of California SanDiego Foundation$50K

The largest 2025 recipient was University of California San Diego Foundation ($50K).

Grant Size Distribution

12 grants across all recorded years

7<$50K3$50–100K2$100–250K$250–500K$500K–1M$1–5M$5M+

The most common grant size was under $50K: 7 grants of 12 (58%).

Giving History

Grant recipients and amounts by year

RecipientPurposeAmount
University of California San Diego Foundation La Jolla, CASupport of Academic Programs and Medical Research.$50,000

Financial History

Multi-year comparison from IRS filings

Revenue
Expenses
Qualifying Distributions
$0$200K$400K$600K2020 2021 2022 2023 2024 2025
Metric202520242023
Total Assets$16,167$18,645$31,634
Revenue$217,151$208,224$228,516
Expenses$219,629$220,899$230,088
Qualifying Distributions$218,525$219,232$227,966
Distributable Amount$1,182$1,251$1,644

Data update history

When this profile's IRS filing data changed on Grantable

  1. Updated Form 990-PF for fiscal year 2020 (received by the IRS November 23, 2021)
  2. Updated Form 990-PF for fiscal year 2021 (received by the IRS May 16, 2022)
  3. Updated Form 990-PF for fiscal year 2022 (received by the IRS May 5, 2023)
  4. Updated Form 990-PF for fiscal year 2023 (received by the IRS May 3, 2024)
  5. Updated Form 990-PF for fiscal year 2024 (received by the IRS May 8, 2025)
  6. Updated Form 990-PF for fiscal year 2025 (received by the IRS March 24, 2026)
  7. IRS filings on file for fiscal years 2020–2025

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

Peter G Preuss — President: $1KPeter G PreussPresident$1K

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.

Your AI grants department

Here's the math on researching The Preuss Foundation Inc by hand.

Explore Open Grants

Browse active grant opportunities in The Preuss Foundation Inc's focus areas in our free grants database

Similar Funders

Funders with grantees in common, and similar funders in California

PKD Foundation

Kansas City, MO

The PKD Foundation funds PKD-related research, care-team services, education, and patient support, primarily through grants to U.S. universities, medical centers, and research institutes; it also gives special consideration to some research partnerships in Canada and Australia. Recent grants typically had a median award of $70,000, while research grants are structured at $120,000 per year for two years; applicants may submit a pre-application, but only invited applicants can submit a full research application.

Assets

$37.0M

Grants

38

Total Given

$2.6M

The Parent Project for Muscular Dystrophy Research Inc

Washington, DC

PPMD funds research and therapy development for Duchenne and Becker muscular dystrophy, along with related care, education, advocacy, and research infrastructure. In 2025, grants ranged from $7,500 to $300,000, with a median of $27,100; it accepts unsolicited applications through its ad hoc Investigator Award opportunity for eligible research. Its profile identifies it as Washington, DC-based but does not specify geographic limits for awards.

Human Services

Assets

$12.7M

Grants

22

Total Given

$1.4M

Flinn Foundation

Phoenix, AZ

The Flinn Foundation funds Arizona bioscience research and infrastructure, university scholarships, and arts-and-culture organizations; its civic-leadership work does not currently make grants. Its 2024 grants had a median of $33,000, though amounts varied widely. Bioscience grants are primarily by invitation, but eligible teams and early-stage companies can apply to specified programs.

Education

Assets

$263.1M

Grants

111

Total Given

$7.7M

Bartz Marr Family Foundation

Los Angeles, CA

Bartz Marr Family Foundation supports a small number of preselected organizations, with 2024 grants spanning Parkinson’s research, Hawai‘i community programs, and police services. Its 2024 giving totaled $610,000 across three grants, ranging from $5,000 to $600,000; most funding went to New York recipients. It does not accept unsolicited requests.

Assets

$12.1M

Grants

3

Total Given

$610K

The Leona M and Harry B Helmsley

New York, NY

Helmsley funds health research, care, facilities, and technology focused on Crohn’s disease, Type 1 diabetes, rural healthcare, Israel, vulnerable children in Sub-Saharan Africa, and New York City, with some programs reaching beyond those places. In 2025, its grants ranged from $3,157 to $6,966,024, with a median of $396,866. It does not accept unsolicited requests; organizations generally apply only after an invitation.

Assets

$7.1B

Grants

570

Total Given

$440.9M

Cure Mito Foundation

McKinney, TX

Our mission is to unite the global leigh syndrome community to accelerate patient-centered research, treatments, and cures by funding research and supporting collaboration in leigh syndrome and mitochondrial disease.

Assets

$1.1M

Grants

5

Total Given

$373K

Institute for Advanced Clinical Trials for Children

North Bethesda, MD

To function as a nonprofit educational, scientific and research organization to enable and advance pediatric clinical research prescribed by regulation through:

Assets

—

Grants

1

Total Given

$229K

Alzheimers Disease Data Initiative Inc

Kirkland, WA

Alzheimer's Disease Data Initiative is a coalition of leading academic, advocacy, government, industry, and philanthropy organizations that recognizes the need for dementia researchers to find easier ways to share data, analytical tools, and scientific findings. These partners are working together to accelerate progress towards new diagnostics, treatments, and cures for Alzheimer's disease and related dementias. Learn more atwww.alzheimersdata.org.

Diseases, Disorders & Medical Disciplines

Assets

$2.0M

Grants

9

Total Given

$1.1M

Friedreich's Ataxia Research Alliance

Springfield, VA

FARA funds basic, translational, and clinical research aimed at treatments and a cure for Friedreich’s ataxia, including disease mechanisms, cardiac research, and drug development. It supports eligible researchers and organizations worldwide; its 2024 grants had a median of about $121,000, while specific awards generally allow up to $125,000–$200,000 per year.

Medical Research

Assets

$6.9M

Grants

32

Total Given

$7.1M

The Michael J Fox Foundation for Parkinson's Research

New York, NY

The Michael J. Fox Foundation funds basic, translational, and clinical research to advance a cure for Parkinson’s disease and improve treatments, supporting researchers in the United States and internationally. Its 2025 grants had a median award of about $426,000, though amounts varied widely. It generally does not accept unsolicited proposals; applications are submitted through its grant portal for designated funding opportunities.

Assets

$639.2M

Grants

149

Total Given

$201.5M

Silicon Valley Community Foundation

Mountain View, CA

Silicon Valley Community Foundation funds work in areas such as housing, economic security, education, health, the environment, arts and culture, and civic engagement, with Community Action Grants supporting local, community-led organizations in San Mateo and Santa Clara counties. Its 2024 grants had a median of $51,716, though amounts varied widely; applications depend on the program, and SVCF states that it does not accept unsolicited proposals for advised funds.

Philanthropy, Voluntarism & Grantmaking

Assets

$12.3B

Grants

3,576

Total Given

$3.2B

California Community Foundation

Los Angeles, CA

The California Community Foundation supports nonprofits through discretionary and donor-directed grants, with discretionary priorities including education, health, housing and immigration, alongside other areas such as arts, civic engagement and economic opportunity. Its 2025 grants had a median of $50,000, and its work is focused on Los Angeles County; prospective discretionary applicants are asked to contact the relevant program officer before submitting a letter of intent.

Assets

$2.3B

Grants

2,174

Total Given

$326.6M

More Funders in California

The Preuss Foundation Inc down — hundreds of funders to go?

Want AI to do this for you?