Grants paid by Ariowitsch Family Foundation
EIN 13-6279580 · Mill Valley, CA · Form 990-PF, Part XV
Ariowitsch Family Foundation of Mill Valley, CA (EIN 13-6279580) reported 28 grants paid totaling $70,000 to 10 recipients in tax years 2022–2025, on Form 990-PF, Part XV. Derived from IRS e-file data, dataset version 2026.09.0, built 2026-09-03.
Grants paid
$70,000
28 grants
Recipients
10
distinct organizations
Tax years
2022–2025
4 filings in the corpus
By tax year
| Tax year | Grants paid | Amount paid | Approved for future |
|---|---|---|---|
| 2022 | 5 | $17,500 | — |
| 2023 | 5 | $7,000 | — |
| 2024 | 10 | $22,500 | — |
| 2025 | 8 | $23,000 | — |
Top recipients
The 10 recipients receiving the most from Ariowitsch Family Foundation, by grants paid, out of 10 distinct recipients.
| Recipient | Match | Location | Grants | Total paid | Latest year |
|---|---|---|---|---|---|
| American Friends of the Hebrew Univ 13-1568923 | C | New York City, NY | 3 | $22,000 | 2025 |
| Marin Mountessori School 94-1567656 | C | Corte Madera, CA | 2 | $10,000 | 2025 |
| The Community Foundation 84-1171836 | B | Boulder, CO | 4 | $9,000 | 2025 |
| Uc Berkeley Foundation | U | Berkeley, CA | 4 | $8,000 | 2025 |
| Headlands Center for Arts 94-2817843 | C | Sausalito, CA | 4 | $7,500 | 2025 |
| Drexel University | U | Philadelphia, PA | 2 | $6,000 | 2024 |
| Washington University 43-0653611 | C | St Louis, MO | 4 | $4,000 | 2025 |
| Environmental Defense Fund | U | San Francisco, CA | 2 | $2,000 | 2025 |
| Rainforest Action Network 94-3045180 | B | San Francisco, CA | 2 | $1,000 | 2025 |
| Sierra Club Foundation 94-6069890 | B | Oakland, CA | 1 | $500 | 2024 |
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 28 grant rows this organization reported, most recent first.
| Tax year | Recipient | Match | Amount | Type | Purpose | Source filing |
|---|---|---|---|---|---|---|
| 2025 | Marin Mountessori School Corte Madera, CA | C | $5,000 | paid | EDUCATION | 202631389349100908 |
| 2025 | Headlands Center for Arts Sausalito, CA | C | $5,000 | paid | EDUCATION | 202631389349100908 |
| 2025 | American Friends of the Hebrew Univ New York City, NY | C | $5,000 | paid | SCHOLARSHIP | 202631389349100908 |
| 2025 | The Community Foundation Boulder, CO | B | $3,000 | paid | ARTS EDUCATION, ENVIRONMENT, HUMANITARIAN | 202631389349100908 |
| 2025 | Uc Berkeley Foundation Berkeley, CA | U | $2,000 | paid | EDUCATION | 202631389349100908 |
| 2025 | Environmental Defense Fund San Francisco, CA | U | $1,500 | paid | ENVIRONMENTAL | 202631389349100908 |
| 2025 | Washington University St Louis, MO | C | $1,000 | paid | EDUCATION | 202631389349100908 |
| 2025 | Rainforest Action Network San Francisco, CA | B | $500 | paid | ENVIRONMENT | 202631389349100908 |
| 2024 | Drexel University Philadelphia, PA | U | $5,000 | paid | EDUCATION | 202531349349102638 |
| 2024 | Marin Mountessori School Corte Madera, CA | C | $5,000 | paid | EDUCATION | 202531349349102638 |
| 2024 | American Friends of the Hebrew Univ New York City, NY | C | $5,000 | paid | SCHOLARSHIP | 202531349349102638 |
| 2024 | The Community Foundation Boulder, CO | B | $2,000 | paid | ARTS EDUCATION, ENVIRONMENT, HUMANITARIAN | 202531349349102638 |
| 2024 | Uc Berkeley Foundation Berkeley, CA | U | $2,000 | paid | EDUCATION | 202531349349102638 |
| 2024 | Washington University St Louis, MO | C | $1,000 | paid | EDUCATION | 202531349349102638 |
| 2024 | Headlands Center for Arts Sausalito, CA | C | $1,000 | paid | EDUCATION | 202531349349102638 |
| 2024 | Environmental Defense Fund San Francisco, CA | U | $500 | paid | ENVIRONMENTAL | 202531349349102638 |
| 2024 | Sierra Club Foundation Oakland, CA | B | $500 | paid | ENVIRONMENTAL | 202531349349102638 |
| 2024 | Rainforest Action Network San Francisco, CA | B | $500 | paid | ENVIRONMENT | 202531349349102638 |
| 2023 | The Community Foundation Boulder, CO | B | $2,000 | paid | ARTS EDUCATION, ENVIRONMENT, HUMANITARIAN | 202411359349103551 |
| 2023 | Uc Berkeley Foundation Berkeley, CA | U | $2,000 | paid | EDUCATION | 202411359349103551 |
| 2023 | Washington University St Louis, MO | C | $1,000 | paid | EDUCATION | 202411359349103551 |
| 2023 | Drexel University Philadelphia, PA | U | $1,000 | paid | EDUCATION | 202411359349103551 |
| 2023 | Headlands Center for Arts Sausalito, CA | C | $1,000 | paid | EDUCATION | 202411359349103551 |
| 2022 | American Friends of the Hebrew Univ New York City, NY | C | $12,000 | paid | SCHOLARSHIP | 202332439349100323 |
| 2022 | Uc Berkeley Foundation Berkeley, CA | U | $2,000 | paid | EDUCATION | 202332439349100323 |
| 2022 | The Community Foundation Boulder, CO | B | $2,000 | paid | ARTS EDUCATION, ENVIRONMENT, HUMANITARIAN | 202332439349100323 |
| 2022 | Washington University St Louis, MO | C | $1,000 | paid | EDUCATION | 202332439349100323 |
| 2022 | Headlands Center for Arts Sausalito, CA | C | $500 | paid | EDUCATION | 202332439349100323 |
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 | 2025v4.1 | 202631389349100908 |
| 990PF | 2024 | 2024-12-31 | not stated | 2024v5.1 | 202531349349102638 |
| 990PF | 2023 | 2023-12-31 | not stated | 2023v5.0 | 202411359349103551 |
| 990PF | 2022 | 2022-12-31 | not stated | 2022v5.0 | 202332439349100323 |
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/136279580.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.