Andrew and Mary Weinberg Foundation
Andrew and Mary Weinberg Foundation is a private foundation, based in Portland, OR. IRS filing data is available from 2020 through 2025. As of 2025, the organization holds $3.2M in total assets. In 2025, it awarded 2 grants totaling $253K. Net investment income was $255K.
Andrew and Mary Weinberg Foundation at a glance
In short: Andrew and Mary Weinberg Foundation gave $253K across 2 grants in 2025 (avg $127K), mostly in California. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $253,000
- +5.6% vs 2024
- Grants made (2025)
- 2
- -33.3% vs 2024
- Average grant
- $126,500
- +58.5% vs 2024
- Median grant
- $126,500
- Total assets
- $3,218,924
- -0.2% vs 2024
- Primary geography
- California (84% 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 Andrew and Mary Weinberg Foundation funds
How this funder distributes its grants
Top Recipients
Top recipient in 2025
The largest 2025 recipient was The Ucbsb Foundation ($213K).
Organizations only. It also paid 1 grant to individuals ($40,000), which are not listed by name.
Grant Size Distribution
14 grants across all recorded years
The most common grant size was under $50K: 9 grants of 14 (64%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of 2025 grant dollars across all 2 itemized grants.
Cities
How Andrew and Mary Weinberg Foundation gives
- Giving grew 1067% from 2022 to 2025. Method
- In 2025 it paid out 112% 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 2025, annual grant giving ranged from $22K (2022) to $305K (2020). In 2025 it made 2 grants totaling $253K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| The Ucbsb Foundation Santa Barbara, CA | Undergraduate Research | $213,000 |
| 1 grant to individuals Recipients not named | — | $40,000 |
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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 |
|---|---|---|---|---|---|---|---|---|
| 2025 | $3,218,924 | $289,794 | $296,484 | $253,000 | 2 | $256,499 | $254,696 | $229,541 |
| 2024 | $3,224,311 | $273,800 | $276,551 | $239,501 | 3 | $243,045 | $240,294 | $217,573 |
| 2023 | $3,225,965 | $124,699 | $260,378 | $225,690 | 2 | $228,239 | $94,024 | $202,352 |
| 2022 | $3,362,467 | $254,588 | $63,711 | $21,688 | 3 | $24,192 | $223,387 | $199,780 |
| 2021 | $3,171,590 | $376,875 | $327,980 | $284,374 | 4 | $287,486 | $342,295 | $224,560 |
| 2020 | $3,118,919 | $247,109 | $336,495 | $304,568 | 5 | — | $218,281 | $197,373 |
Under IRS private-foundation payout rules, Andrew and Mary Weinberg Foundation reported a distributable amount of $230K for 2025 — the minimum it must pay out in qualifying distributions.
Leadership & Key People
Officers and directors from IRS filings
Andrew and Mary Weinberg Foundation is led by Andrew Weinberg, President on every filing since 2020; none of the 3 officers listed in 2025 report compensation.
Officers on the 2025 filing
Andrew Weinberg
President
On filings since 2020
1 hr/week
No compensation reported
Faith Weinberg
Director
On filings since 2020
1 hr/week
No compensation reported
Mary Weinberg
Secretary & Treasurer
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.
Frequently asked questions about Andrew and Mary Weinberg Foundation
How much does Andrew and Mary Weinberg Foundation give each year?
Andrew and Mary Weinberg Foundation gave $253K across 2 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $240K across 3 grants.
How large is Andrew and Mary Weinberg Foundation?
Andrew and Mary Weinberg Foundation reported $3.2M in total assets on its 2025 IRS Form 990-PF. It paid out $256K in qualifying distributions that year, against a required minimum of $230K (roughly 5% of its investment assets).
Where does Andrew and Mary Weinberg Foundation operate?
Andrew and Mary Weinberg Foundation has awarded grants in Arizona, California, Hawaii, Oregon, Washington.
What is Andrew and Mary Weinberg Foundation's EIN?
Andrew and Mary Weinberg Foundation's EIN (Employer Identification Number) is 47-1803527. 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 April 2, 2021)
- Updated Form 990-PF for fiscal year 2021 (received by the IRS June 15, 2023)
- Updated Form 990-PF for fiscal year 2022 (received by the IRS June 15, 2023)
- Updated Form 990-PF for fiscal year 2023 (received by the IRS May 14, 2024)
- Updated Form 990-PF for fiscal year 2024 (received by the IRS May 7, 2025)
- Added Form 990-PF for fiscal year 2025 (received by the IRS May 8, 2026)
- IRS filings on file for fiscal years 2020–2024
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