Gruber Family Foundation
Gruber Family Foundation is a private foundation, based in Ross, CA. IRS filing data is available from 2020 through 2025. As of 2025, the organization holds $75.4M in total assets. In 2025, it awarded 1 grant totaling $3.6M. Net investment income was $5.7M.
Gruber Family Foundation at a glance
In short: Gruber Family Foundation gave $3.6M across 1 grant in 2025 (avg $3.6M), mostly in California. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $3,648,877
- +31.2% vs 2024
- Grants made (2025)
- 1
- +0.0% vs 2024
- Average grant
- $3,648,877
- +31.2% vs 2024
- Median grant
- $3,648,877
- Total assets
- $75,402,651
- +21.0% vs 2024
- Primary geography
- California (100% 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 Gruber Family Foundation funds
How this funder distributes its grants
Top Recipients
Top recipient in 2025
The largest 2025 recipient was Charitable Donations - See Schedule Attached ($3.6M).
Grant Size Distribution
5 grants across all recorded years
The most common grant size was in the $1–5M range: 5 grants of 5 (100%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of the 2025 grant dollars on its one itemized grant.
States
Cities
How Gruber Family Foundation gives
- Giving held roughly steady from 2022 to 2025 (+7%). Method
- In 2025 it paid out 103% 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 $2.8M (2024) to $4.8M (2021). In 2025 it made 1 grant totaling $3.6M.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Charitable Donations - See Schedule Attached Ross, CA | Unrestricted | $3,648,877 |
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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 | $75,402,651 | $18,242,556 | $4,357,642 | $3,648,877 | 1 | $3,648,877 | $5,694,704 | $3,548,116 |
| 2024 | $62,311,135 | $13,699,903 | $3,509,921 | $2,781,833 | 1 | $2,781,833 | $820,014 | $3,096,720 |
| 2023 | $56,211,940 | $3,552,621 | $3,688,666 | $3,035,800 | 1 | $3,036,666 | $3,077,952 | $2,609,151 |
| 2022 | $51,568,951 | $-834,756 | $4,132,627 | $3,399,500 | 1 | $3,399,500 | $641,791 | $2,532,176 |
| 2021 | $53,819,714 | $7,052,187 | $5,572,308 | $4,759,050 | 1 | $4,759,050 | $269,171 | $2,822,742 |
| 2020 | $54,970,646 | $6,724,138 | $4,568,461 | $3,324,000 | 1 | — | — | $2,954,229 |
Under IRS private-foundation payout rules, Gruber Family Foundation reported a distributable amount of $3.5M for 2025 — the minimum it must pay out in qualifying distributions.
Leadership & Key People
Officers and directors from IRS filings
Gruber Family Foundation is led by Linda W. Gruber, President on every filing since 2020; none of the 3 officers listed in 2025 report compensation.
Officers on the 2025 filing
Linda W. Gruber
President
On filings since 2020
3 hrs/week
No compensation reported
Christopher Dunham
Treasurer
On filings since 2023
12 hrs/week
$200K (2023) → $0 (2025)
Jon D. Gruber
Vice President
Secretary & Treasurer → Vice President, 2023
On filings since 2020
3 hrs/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 2023 IRS filing
The highest reported compensation on the 2023 filing was $200K, to Christopher Dunham (Treasurer).
Frequently asked questions about Gruber Family Foundation
How much does Gruber Family Foundation give each year?
Gruber Family Foundation gave $3.6M across 1 grant in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $2.8M across 1 grant.
How large is Gruber Family Foundation?
Gruber Family Foundation reported $75.4M in total assets on its 2025 IRS Form 990-PF. It paid out $3.6M in qualifying distributions that year, against a required minimum of $3.5M (roughly 5% of its investment assets).
Where does Gruber Family Foundation operate?
Gruber Family Foundation has awarded grants in California.
What is Gruber Family Foundation's EIN?
Gruber Family Foundation's EIN (Employer Identification Number) is 94-3039716. 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
(2)
When this profile's IRS filing data changed on Grantable
- Added Form 990-PF for fiscal year 2025 (received by the IRS May 13, 2026)
- IRS filings on file for fiscal years 2020–2024
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