The Gruber Foundation
The gruber foundation honors individuals in the fields of cosmology, genetics, neuroscience, justice, and women's rights, whose groundbreaking work provides new models that inspire and enable fundamental shifts in knowledge and culture.
The Gruber Foundation at a glance
In short: The Gruber Foundation gave $5.2M across 5 grants in 2025 (avg $1.0M), mostly in Connecticut. Source: 2025 IRS Form 990.
- Annual giving (2025)
- $5,204,478
- +7.7% vs 2024
- Grants made (2025)
- 5
- +0.0% vs 2024
- Average grant
- $1,040,896
- +7.7% vs 2024
- Median grant
- $150,000
- Total assets
- $249,290,232
- +8.2% vs 2024
- Primary geography
- Connecticut (92% of itemized 2025 grant dollars)
- Latest 990 filing
- Form 990, 2025 View filing
Data from IRS Form 990, 2025; updated September 2026.
Who The Gruber Foundation funds
How this funder distributes its grants
Top Recipients
Top 4 recipients in 2025
The largest 2025 recipient was Yale University ($4.8M). Together the top 4 received $5.2M.
Grant Size Distribution
27 grants across all recorded years
The most common grant size was under $50K: 7 grants of 27 (26%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of 2025 grant dollars across all 5 itemized grants.
Cities
How The Gruber Foundation gives
- Giving held roughly steady from 2022 to 2025 (+14%). Method
From the foundation's IRS Form 990 filings. Methodology.
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2019 to 2025, annual grant giving ranged from $3.8M (2020) to $5.2M (2025). In 2025 it made 5 grants totaling $5.2M.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Yale University New Haven, CT | The Gruber Foundation provides grants to Yale University in support of the Gruber Science Fellowship Program and the Gruber Program for Global Justice and Women's Rights | $4,764,478 |
| University of Arizona Foundation Tucson, AZ | Prize for outstanding accomplishments in the field of Cosmology | $200,000 |
| The Genetics Society of America Inc Rockville, MD | The Rosalind Franklin Young Investigator Award - Fellowship | $150,000 |
| Society for Neuroscience Washington, DC | Society for Neuroscience International Research Award - Fellowship | $75,000 |
| Society for Neuroscience Washington, DC | Contribution | $15,000 |
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Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Net Investment Income |
|---|---|---|---|---|---|---|
| 2025 | $249,290,232 | $6,509,553 | $6,572,381 | $5,204,478 | 5 | $6,509,553 |
| 2024 | $230,349,306 | $6,722,625 | $7,265,877 | $4,832,349 | 5 | $6,722,625 |
| 2023 | $223,850,688 | $7,178,975 | $6,579,121 | $4,352,350 | 4 | $7,178,975 |
| 2022 | $226,433,881 | $5,814,298 | $5,990,716 | $4,550,318 | 7 | $5,814,298 |
| 2021 | $222,542,836 | $5,387,715 | $5,316,200 | $4,223,333 | 6 | $5,385,837 |
| 2020 | $160,890,083 | $9,631,912 | $6,204,294 | $3,765,000 | 3 | $5,631,912 |
| 2019 | $153,075,110 | $7,132,091 | $5,823,352 | $3,898,333 | 5 | $7,132,091 |
About The Gruber Foundation
Based on IRS filings
The Gruber Foundation is a public charity focused on Education, based in New Haven, CT. IRS filing data is available from 2019 through 2025. As of 2025, the organization holds $249.3M in total assets. In 2025, it awarded 5 grants totaling $5.2M. Net investment income was $6.5M.
Focus Areas
Leadership & Key People
Officers and directors from IRS filings
The Gruber Foundation is led by Steven Wilkinson, President & Director on every filing since 2023; none of the 9 officers listed in 2025 report compensation.
Officers on the 2025 filing
Steven Wilkinson
President & Director
On filings since 2023
0.2 hrs/week
No compensation reported
B Waring Partridge
Director
On filings since 2019
0.2 hrs/week
No compensation reported
Benjamin Polak
Former President & Director
President & Director → Former President & Director, 2021
On filings since 2019
No compensation reported
Joan E O'Neill
Director
On filings since 2019
0.2 hrs/week
No compensation reported
Patricia Gruber
Director
On filings since 2019
0.2 hrs/week
No compensation reported
Peter Salovey
Director
On filings since 2019
0.2 hrs/week
No compensation reported
Pericles Lewis
Former President & Director
President & Director → Former President & Director, 2024
On filings since 2020
No compensation reported
Maurie McInnis
Director
New on the 2025 filing
0.2 hrs/week
No compensation reported
Elizabeth Bilodeau
Vice President, Treasurer & Secretary
On filings since 2019
0.2 hrs/week
No compensation reported
Data from IRS Form 990 filings, 2019–2025. "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 The Gruber Foundation
How much does The Gruber Foundation give each year?
The Gruber Foundation gave $5.2M across 5 grants in 2025, according to its 2025 IRS Form 990. In 2024 it gave $4.8M across 5 grants.
What is The Gruber Foundation's typical grant size?
The Gruber Foundation's median grant in 2025 was $150,000, and its average grant was $1,040,896, across 5 grants on its 2025 IRS Form 990.
Where does The Gruber Foundation give grants?
The Gruber Foundation gives mostly in Connecticut: 92% of the grant dollars itemized on its 2025 IRS Form 990 went to recipients there. The most frequent recipient cities were Washington, DC (2 grants).
Does The Gruber Foundation give general operating support?
Not in 2025: none of the 5 grants with a stated purpose on The Gruber Foundation's 2025 IRS Form 990 were described as general or operating support.
Who are The Gruber Foundation's largest grantees?
The Gruber Foundation's largest 2025 grantees include Yale University ($4,764,478), University of Arizona Foundation ($200,000) and The Genetics Society of America Inc ($150,000), according to its 2025 IRS Form 990. Together they received 98% of its itemized 2025 grant dollars.
How large is The Gruber Foundation?
The Gruber Foundation reported $249.3M in total assets on its 2025 IRS Form 990. Its revenue that year was $6.5M.
What is The Gruber Foundation?
The Gruber Foundation is a public charity focused on Education, based in New Haven, CT. It holds $249.3M in total assets as of 2025.
What is The Gruber Foundation's EIN?
The Gruber Foundation's EIN (Employer Identification Number) is 45-1540594. IRS Form 990 filing data is available on this page for 2019–2025.
Data last updated September 2026. Sourced from IRS Form 990 filings.
Data update history
(7)
When this profile's IRS filing data changed on Grantable
- Updated Form 990 for fiscal year 2024 (received by the IRS May 14, 2025)
- Updated Form 990 for fiscal year 2025 (received by the IRS May 13, 2026)
- Updated Form 990 for fiscal year 2019 (received by the IRS July 13, 2020)
- Updated Form 990 for fiscal year 2020 (received by the IRS May 14, 2021)
- Updated Form 990 for fiscal year 2021 (received by the IRS May 13, 2022)
- Updated Form 990 for fiscal year 2022 (received by the IRS May 12, 2023)
- Updated Form 990 for fiscal year 2023 (received by the IRS May 14, 2024)
Live grants for the work The Gruber Foundation funds
Education Open opportunities, soonest deadline first.
Explore Open Grants
Browse active grant opportunities in The Gruber Foundation's focus areas in our free grants database
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Figures come from The Gruber Foundation's IRS filings (methodology). AI-written summaries, news items and logos are not covered by the open licence. Spot an error? Email hello@grantable.co.
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