Grants paid by The Preuss Family Foundation
EIN 33-0229180 · La Jolla, CA · Form 990-PF, Part XV
The Preuss Family Foundation of La Jolla, CA (EIN 33-0229180) reported 47 grants paid totaling $1,664,930 to 1 recipient in tax years 2020–2025, on Form 990-PF, Part XV. Derived from IRS e-file data, dataset version 2026.09.0, built 2026-09-03.
Grants paid
$1,664,930
47 grants
Recipients
1
distinct organizations
Tax years
2020–2025
6 filings in the corpus
By tax year
| Tax year | Grants paid | Amount paid | Approved for future |
|---|---|---|---|
| 2020 | 9 | $348,543 | — |
| 2021 | 9 | $388,158 | — |
| 2022 | 8 | $289,513 | — |
| 2023 | 6 | $228,341 | — |
| 2024 | 7 | $193,224 | — |
| 2025 | 8 | $217,151 | — |
Top recipients
The 1 recipients receiving the most from The Preuss Family Foundation, by grants paid, out of 1 distinct recipient.
| Recipient | Match | Location | Grants | Total paid | Latest year |
|---|---|---|---|---|---|
| The Preuss Foundation Inc 33-0085513 | B | La Jolla, CA | 47 | $1,664,930 | 2025 |
Match tier: A Reported EIN · B Exact name and place · C Strong name match · D Probable name match · U Unresolved. Tiers C and D are inferred, not reported; see how matching works.
Every grant
All 47 grant rows this organization reported, most recent first.
| Tax year | Recipient | Match | Amount | Type | Purpose | Source filing |
|---|---|---|---|---|---|---|
| 2025 | The Preuss Foundation Inc La Jolla, CA | B | $50,000 | paid | TO SUPPORT CHARITABLE, EDUCATIONAL, AND SCIENTIFIC PURPOSES, INCLUDING TO PROMOTE BRAIN TUMOR AND MEDICAL RESEARCH. | 202630839349100128 |
| 2025 | The Preuss Foundation Inc La Jolla, CA | B | $29,666 | paid | TO SUPPORT CHARITABLE, EDUCATIONAL, AND SCIENTIFIC PURPOSES, INCLUDING TO PROMOTE BRAIN TUMOR AND MEDICAL RESEARCH. | 202630839349100128 |
| 2025 | The Preuss Foundation Inc La Jolla, CA | B | $25,234 | paid | TO SUPPORT CHARITABLE, EDUCATIONAL, AND SCIENTIFIC PURPOSES, INCLUDING TO PROMOTE BRAIN TUMOR AND MEDICAL RESEARCH. | 202630839349100128 |
| 2025 | The Preuss Foundation Inc La Jolla, CA | B | $25,000 | paid | TO SUPPORT CHARITABLE, EDUCATIONAL, AND SCIENTIFIC PURPOSES, INCLUDING TO PROMOTE BRAIN TUMOR AND MEDICAL RESEARCH. | 202630839349100128 |
| 2025 | The Preuss Foundation Inc La Jolla, CA | B | $23,925 | paid | TO SUPPORT CHARITABLE, EDUCATIONAL, AND SCIENTIFIC PURPOSES, INCLUDING TO PROMOTE BRAIN TUMOR AND MEDICAL RESEARCH. | 202630839349100128 |
| 2025 | The Preuss Foundation Inc La Jolla, CA | B | $23,326 | paid | TO SUPPORT CHARITABLE, EDUCATIONAL, AND SCIENTIFIC PURPOSES, INCLUDING TO PROMOTE BRAIN TUMOR AND MEDICAL RESEARCH. | 202630839349100128 |
| 2025 | The Preuss Foundation Inc La Jolla, CA | B | $20,000 | paid | TO SUPPORT CHARITABLE, EDUCATIONAL, AND SCIENTIFIC PURPOSES, INCLUDING TO PROMOTE BRAIN TUMOR AND MEDICAL RESEARCH. | 202630839349100128 |
| 2025 | The Preuss Foundation Inc La Jolla, CA | B | $20,000 | paid | TO SUPPORT CHARITABLE, EDUCATIONAL, AND SCIENTIFIC PURPOSES, INCLUDING TO PROMOTE BRAIN TUMOR AND MEDICAL RESEARCH. | 202630839349100128 |
| 2024 | The Preuss Foundation Inc La Jolla, CA | B | $70,000 | paid | TO SUPPORT CHARITABLE, EDUCATIONAL, AND SCIENTIFIC PURPOSES, INCLUDING TO PROMOTE BRAIN TUMOR AND MEDICAL RESEARCH. | 202531289349103213 |
| 2024 | The Preuss Foundation Inc La Jolla, CA | B | $29,939 | paid | TO SUPPORT CHARITABLE, EDUCATIONAL, AND SCIENTIFIC PURPOSES, INCLUDING TO PROMOTE BRAIN TUMOR AND MEDICAL RESEARCH. | 202531289349103213 |
| 2024 | The Preuss Foundation Inc La Jolla, CA | B | $29,442 | paid | TO SUPPORT CHARITABLE, EDUCATIONAL, AND SCIENTIFIC PURPOSES, INCLUDING TO PROMOTE BRAIN TUMOR AND MEDICAL RESEARCH. | 202531289349103213 |
| 2024 | The Preuss Foundation Inc La Jolla, CA | B | $28,868 | paid | TO SUPPORT CHARITABLE, EDUCATIONAL, AND SCIENTIFIC PURPOSES, INCLUDING TO PROMOTE BRAIN TUMOR AND MEDICAL RESEARCH. | 202531289349103213 |
| 2024 | The Preuss Foundation Inc La Jolla, CA | B | $15,000 | paid | TO SUPPORT CHARITABLE, EDUCATIONAL, AND SCIENTIFIC PURPOSES, INCLUDING TO PROMOTE BRAIN TUMOR AND MEDICAL RESEARCH. | 202531289349103213 |
| 2024 | The Preuss Foundation Inc La Jolla, CA | B | $14,975 | paid | TO SUPPORT CHARITABLE, EDUCATIONAL, AND SCIENTIFIC PURPOSES, INCLUDING TO PROMOTE BRAIN TUMOR AND MEDICAL RESEARCH. | 202531289349103213 |
| 2024 | The Preuss Foundation Inc La Jolla, CA | B | $5,000 | paid | TO SUPPORT CHARITABLE, EDUCATIONAL, AND SCIENTIFIC PURPOSES, INCLUDING TO PROMOTE BRAIN TUMOR AND MEDICAL RESEARCH. | 202531289349103213 |
| 2023 | The Preuss Foundation Inc La Jolla, CA | B | $79,702 | paid | TO SUPPORT CHARITABLE, EDUCATIONAL, AND SCIENTIFIC PURPOSES, INCLUDING TO PROMOTE BRAIN TUMOR AND MEDICAL RESEARCH. | 202401249349100240 |
| 2023 | The Preuss Foundation Inc La Jolla, CA | B | $30,000 | paid | TO SUPPORT CHARITABLE, EDUCATIONAL, AND SCIENTIFIC PURPOSES, INCLUDING TO PROMOTE BRAIN TUMOR AND MEDICAL RESEARCH. | 202401249349100240 |
| 2023 | The Preuss Foundation Inc La Jolla, CA | B | $30,000 | paid | TO SUPPORT CHARITABLE, EDUCATIONAL, AND SCIENTIFIC PURPOSES, INCLUDING TO PROMOTE BRAIN TUMOR AND MEDICAL RESEARCH. | 202401249349100240 |
| 2023 | The Preuss Foundation Inc La Jolla, CA | B | $30,000 | paid | TO SUPPORT CHARITABLE, EDUCATIONAL, AND SCIENTIFIC PURPOSES, INCLUDING TO PROMOTE BRAIN TUMOR AND MEDICAL RESEARCH. | 202401249349100240 |
| 2023 | The Preuss Foundation Inc La Jolla, CA | B | $30,000 | paid | TO SUPPORT CHARITABLE, EDUCATIONAL, AND SCIENTIFIC PURPOSES, INCLUDING TO PROMOTE BRAIN TUMOR AND MEDICAL RESEARCH. | 202401249349100240 |
| 2023 | The Preuss Foundation Inc La Jolla, CA | B | $28,639 | paid | TO SUPPORT CHARITABLE, EDUCATIONAL, AND SCIENTIFIC PURPOSES, INCLUDING TO PROMOTE BRAIN TUMOR AND MEDICAL RESEARCH. | 202401249349100240 |
| 2022 | The Preuss Foundation Inc La Jolla, CA | B | $100,000 | paid | TO SUPPORT CHARITABLE, EDUCATIONAL, AND SCIENTIFIC PURPOSES, INCLUDING TO PROMOTE BRAIN TUMOR AND MEDICAL RESEARCH. | 202311259349100646 |
| 2022 | The Preuss Foundation Inc La Jolla, CA | B | $30,000 | paid | TO SUPPORT CHARITABLE, EDUCATIONAL, AND SCIENTIFIC PURPOSES, INCLUDING TO PROMOTE BRAIN TUMOR AND MEDICAL RESEARCH. | 202311259349100646 |
| 2022 | The Preuss Foundation Inc La Jolla, CA | B | $30,000 | paid | TO SUPPORT CHARITABLE, EDUCATIONAL, AND SCIENTIFIC PURPOSES, INCLUDING TO PROMOTE BRAIN TUMOR AND MEDICAL RESEARCH. | 202311259349100646 |
| 2022 | The Preuss Foundation Inc La Jolla, CA | B | $29,876 | paid | TO SUPPORT CHARITABLE, EDUCATIONAL, AND SCIENTIFIC PURPOSES, INCLUDING TO PROMOTE BRAIN TUMOR AND MEDICAL RESEARCH. | 202311259349100646 |
| 2022 | The Preuss Foundation Inc La Jolla, CA | B | $26,256 | paid | TO SUPPORT CHARITABLE, EDUCATIONAL, AND SCIENTIFIC PURPOSES, INCLUDING TO PROMOTE BRAIN TUMOR AND MEDICAL RESEARCH. | 202311259349100646 |
| 2022 | The Preuss Foundation Inc La Jolla, CA | B | $25,000 | paid | TO SUPPORT CHARITABLE, EDUCATIONAL, AND SCIENTIFIC PURPOSES, INCLUDING TO PROMOTE BRAIN TUMOR AND MEDICAL RESEARCH. | 202311259349100646 |
| 2022 | The Preuss Foundation Inc La Jolla, CA | B | $25,000 | paid | TO SUPPORT CHARITABLE, EDUCATIONAL, AND SCIENTIFIC PURPOSES, INCLUDING TO PROMOTE BRAIN TUMOR AND MEDICAL RESEARCH. | 202311259349100646 |
| 2022 | The Preuss Foundation Inc La Jolla, CA | B | $23,381 | paid | TO SUPPORT CHARITABLE, EDUCATIONAL, AND SCIENTIFIC PURPOSES, INCLUDING TO PROMOTE BRAIN TUMOR AND MEDICAL RESEARCH. | 202311259349100646 |
| 2021 | The Preuss Foundation Inc La Jolla, CA | B | $160,000 | paid | TO SUPPORT CHARITABLE, EDUCATIONAL, AND SCIENTIFIC PURPOSES, ESPECIALLY TO PROMOTE BRAIN TUMOR RESEARCH. | 202241369349103914 |
| 2021 | The Preuss Foundation Inc La Jolla, CA | B | $30,163 | paid | TO SUPPORT CHARITABLE, EDUCATIONAL, AND SCIENTIFIC PURPOSES, ESPECIALLY TO PROMOTE BRAIN TUMOR RESEARCH. | 202241369349103914 |
| 2021 | The Preuss Foundation Inc La Jolla, CA | B | $30,147 | paid | TO SUPPORT CHARITABLE, EDUCATIONAL, AND SCIENTIFIC PURPOSES, ESPECIALLY TO PROMOTE BRAIN TUMOR RESEARCH. | 202241369349103914 |
| 2021 | The Preuss Foundation Inc La Jolla, CA | B | $30,000 | paid | TO SUPPORT CHARITABLE, EDUCATIONAL, AND SCIENTIFIC PURPOSES, ESPECIALLY TO PROMOTE BRAIN TUMOR RESEARCH. | 202241369349103914 |
| 2021 | The Preuss Foundation Inc La Jolla, CA | B | $29,608 | paid | TO SUPPORT CHARITABLE, EDUCATIONAL, AND SCIENTIFIC PURPOSES, ESPECIALLY TO PROMOTE BRAIN TUMOR RESEARCH. | 202241369349103914 |
| 2021 | The Preuss Foundation Inc La Jolla, CA | B | $29,550 | paid | TO SUPPORT CHARITABLE, EDUCATIONAL, AND SCIENTIFIC PURPOSES, ESPECIALLY TO PROMOTE BRAIN TUMOR RESEARCH. | 202241369349103914 |
| 2021 | The Preuss Foundation Inc La Jolla, CA | B | $28,575 | paid | TO SUPPORT CHARITABLE, EDUCATIONAL, AND SCIENTIFIC PURPOSES, ESPECIALLY TO PROMOTE BRAIN TUMOR RESEARCH. | 202241369349103914 |
| 2021 | The Preuss Foundation Inc La Jolla, CA | B | $25,115 | paid | TO SUPPORT CHARITABLE, EDUCATIONAL, AND SCIENTIFIC PURPOSES, ESPECIALLY TO PROMOTE BRAIN TUMOR RESEARCH. | 202241369349103914 |
| 2021 | The Preuss Foundation Inc La Jolla, CA | B | $25,000 | paid | TO SUPPORT CHARITABLE, EDUCATIONAL, AND SCIENTIFIC PURPOSES, ESPECIALLY TO PROMOTE BRAIN TUMOR RESEARCH. | 202241369349103914 |
| 2020 | The Preuss Foundation Inc La Jolla, CA | B | $130,172 | paid | TO SUPPORT CHARITABLE, EDUCATIONAL, AND SCIENTIFIC PURPOSES, ESPECIALLY TO PROMOTE BRAIN TUMOR RESEARCH. | 202143279349100609 |
| 2020 | The Preuss Foundation Inc La Jolla, CA | B | $30,169 | paid | TO SUPPORT CHARITABLE, EDUCATIONAL, AND SCIENTIFIC PURPOSES, ESPECIALLY TO PROMOTE BRAIN TUMOR RESEARCH. | 202143279349100609 |
| 2020 | The Preuss Foundation Inc La Jolla, CA | B | $30,000 | paid | TO SUPPORT CHARITABLE, EDUCATIONAL, AND SCIENTIFIC PURPOSES, ESPECIALLY TO PROMOTE BRAIN TUMOR RESEARCH. | 202143279349100609 |
| 2020 | The Preuss Foundation Inc La Jolla, CA | B | $30,000 | paid | TO SUPPORT CHARITABLE, EDUCATIONAL, AND SCIENTIFIC PURPOSES, ESPECIALLY TO PROMOTE BRAIN TUMOR RESEARCH. | 202143279349100609 |
| 2020 | The Preuss Foundation Inc La Jolla, CA | B | $30,000 | paid | TO SUPPORT CHARITABLE, EDUCATIONAL, AND SCIENTIFIC PURPOSES, ESPECIALLY TO PROMOTE BRAIN TUMOR RESEARCH. | 202143279349100609 |
| 2020 | The Preuss Foundation Inc La Jolla, CA | B | $30,000 | paid | TO SUPPORT CHARITABLE, EDUCATIONAL, AND SCIENTIFIC PURPOSES, ESPECIALLY TO PROMOTE BRAIN TUMOR RESEARCH. | 202143279349100609 |
| 2020 | The Preuss Foundation Inc La Jolla, CA | B | $28,728 | paid | TO SUPPORT CHARITABLE, EDUCATIONAL, AND SCIENTIFIC PURPOSES, ESPECIALLY TO PROMOTE BRAIN TUMOR RESEARCH. | 202143279349100609 |
| 2020 | The Preuss Foundation Inc La Jolla, CA | B | $24,499 | paid | TO SUPPORT CHARITABLE, EDUCATIONAL, AND SCIENTIFIC PURPOSES, ESPECIALLY TO PROMOTE BRAIN TUMOR RESEARCH. | 202143279349100609 |
| 2020 | The Preuss Foundation Inc La Jolla, CA | B | $14,975 | paid | TO SUPPORT CHARITABLE, EDUCATIONAL, AND SCIENTIFIC PURPOSES, ESPECIALLY TO PROMOTE BRAIN TUMOR RESEARCH. | 202143279349100609 |
Match tier: A Reported EIN · B Exact name and place · C Strong name match · D Probable name match · U Unresolved. Tiers C and D are inferred, not reported; see how matching works.
Recipient matching for this dataset version has not yet completed its independent precision check. Tier A rows carry the EIN the filer reported; tiers B–D are the matcher's inference and should be read as leads until the check is published on the methodology page.
Source filings
Every figure above is traceable to one of these IRS e-file returns by its OBJECT_ID.
| Form | Tax year | Period end | Filed | Schema | IRS OBJECT_ID |
|---|---|---|---|---|---|
| 990PF | 2025 | 2025-12-31 | not stated | 2025v4.0 | 202630839349100128 |
| 990PF | 2024 | 2024-12-31 | not stated | 2024v5.1 | 202531289349103213 |
| 990PF | 2023 | 2023-12-31 | not stated | 2023v5.0 | 202401249349100240 |
| 990PF | 2022 | 2022-12-31 | not stated | 2022v5.0 | 202311259349100646 |
| 990PF | 2021 | 2021-12-31 | not stated | 2021v4.2 | 202241369349103914 |
| 990PF | 2020 | 2020-12-31 | not stated | 2020v4.1 | 202143279349100609 |
Derived from IRS Form 990-PF e-file XML; recipient identities from the IRS Exempt Organizations Business Master File. Dataset version 2026.09.0, built 2026-09-03. The same rows as Parquet: manifest; as JSON: /api/funders/330229180.json.
The same organization elsewhere in the program: exempt status and filing health · federal awards · grant guidance · open opportunities.
This is informational only, derived from public data on the dates shown. It is not an eligibility determination, and not legal, tax, or accounting advice. Verify against the official source before relying on it.