Joseph R and Katherine Anderson
Joseph R and Katherine Anderson is a private foundation, based in Sunnyvale, CA. IRS filing data is available from 2020 through 2024. As of 2024, the organization holds $4.6M in total assets. In 2024, it awarded 3 grants totaling $250K. Net investment income was $178K.
Joseph R and Katherine Anderson at a glance
In short: Joseph R and Katherine Anderson gave $250K across 3 grants in 2024 (avg $83K), mostly in California. Source: 2024 IRS Form 990-PF.
- Annual giving (2024)
- $250,000
- +11.1% vs 2023
- Grants made (2024)
- 3
- +0.0% vs 2023
- Average grant
- $83,333
- +11.1% vs 2023
- Median grant
- $115,000
- Total assets
- $4,609,046
- -1.9% vs 2023
- Primary geography
- California (100% of itemized 2024 grant dollars)
- Latest 990 filing
- Form 990-PF, 2024 View filing
Data from IRS Form 990-PF, 2024; updated September 2026.
Who Joseph R and Katherine Anderson funds
How this funder distributes its grants
Top Recipients
Top 3 recipients in 2024
The largest 2024 recipient was Santa Clara University ($125K). Together the top 3 received $250K.
Grant Size Distribution
12 grants across all recorded years
The most common grant size was in the $100–250K range: 9 grants of 12 (75%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of 2024 grant dollars across all 3 itemized grants.
States
Cities
How Joseph R and Katherine Anderson gives
- Giving grew 25% from 2021 to 2024. Method
- In 2024 it paid out 81% of its IRS minimum distribution (the 5% rule). Foundations have until the end of the next year to meet it. 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 2024, annual grant giving ranged from $200K (2021) to $300K (2020). In 2024 it made 3 grants totaling $250K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Santa Clara University Santa Clara, CA | Educational | $125,000 |
| Humane Society of Silicon Valley Milpitas, CA | Support for Animal Preservation | $115,000 |
| The Marine Mammal Center Sausalito, CA | Ocean Conservation | $10,000 |
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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 |
|---|---|---|---|---|---|---|---|---|
| 2024 | $4,609,046 | $280,661 | $369,883 | $250,000 | 3 | $258,642 | $178,072 | $318,047 |
| 2023 | $4,696,358 | $304,739 | $314,089 | $225,000 | 3 | $225,000 | $200,285 | $288,529 |
| 2022 | $4,710,413 | $401,784 | $373,199 | $275,000 | 2 | $275,000 | $311,692 | $295,844 |
| 2021 | $4,679,799 | $468,795 | $296,474 | $200,000 | 2 | $200,000 | $370,230 | $320,196 |
| 2020 | $4,505,066 | $231,349 | $378,423 | $300,150 | 2 | — | $149,487 | $276,943 |
Under IRS private-foundation payout rules, Joseph R and Katherine Anderson reported a distributable amount of $318K for 2024 — the minimum it must pay out in qualifying distributions.
Leadership & Key People
Officers and directors from IRS filings
Joseph R and Katherine Anderson is led by Elaine Mathews, Executive Director on every filing since 2020 — the only officer listed, and uncompensated.
Officers on the 2024 filing
Elaine Mathews
Executive Director
On filings since 2020
10 hrs/week
No compensation reported
Data from IRS Form 990 filings, 2020–2024. "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 Joseph R and Katherine Anderson
How much does Joseph R and Katherine Anderson give each year?
Joseph R and Katherine Anderson gave $250K across 3 grants in 2024, according to its 2024 IRS Form 990-PF. In 2023 it gave $225K across 3 grants.
What is Joseph R and Katherine Anderson's typical grant size?
Joseph R and Katherine Anderson's median grant in 2024 was $115,000, and its average grant was $83,333, across 3 grants on its 2024 IRS Form 990-PF.
Where does Joseph R and Katherine Anderson give grants?
Joseph R and Katherine Anderson gives mostly in California: 100% of the grant dollars itemized on its 2024 IRS Form 990-PF went to recipients there.
Does Joseph R and Katherine Anderson give general operating support?
Not in 2024: none of the 3 grants with a stated purpose on Joseph R and Katherine Anderson's 2024 IRS Form 990-PF were described as general or operating support.
How large is Joseph R and Katherine Anderson?
Joseph R and Katherine Anderson reported $4.6M in total assets on its 2024 IRS Form 990-PF. It paid out $259K in qualifying distributions that year, against a required minimum of $318K (roughly 5% of its investment assets). Falling short in one year is not a violation: foundations have until the end of the next year to meet the minimum.
What is Joseph R and Katherine Anderson's EIN?
Joseph R and Katherine Anderson's EIN (Employer Identification Number) is 35-2182745. IRS Form 990 filing data is available on this page for 2020–2024.
Data last updated September 2026. Sourced from IRS Form 990-PF filings.
Data update history
(1)
When this profile's IRS filing data changed on Grantable
- IRS filings on file for fiscal years 2020–2024
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