The Jeffrey Horvitz Foundation
The Jeffrey Horvitz Foundation is a private foundation, based in Columbus, OH. IRS filing data is available from 2020 through 2025. As of 2025, the organization holds $981K in total assets. In 2025, it awarded 9 grants totaling $1.6M. Net investment income was $4K.
The Jeffrey Horvitz Foundation at a glance
In short: The Jeffrey Horvitz Foundation gave $1.6M across 9 grants in 2025 (avg $174K), mostly in Massachusetts. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $1,568,500
- +1517.0% vs 2024
- Grants made (2025)
- 9
- +12.5% vs 2024
- Average grant
- $174,278
- +1337.3% vs 2024
- Median grant
- $10,000
- Total assets
- $980,875
- +2056.8% vs 2024
- Primary geography
- Massachusetts (97% 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 The Jeffrey Horvitz Foundation funds
How this funder distributes its grants
Top Recipients
Top 9 recipients in 2025
The largest 2025 recipient was The University of Massachusetts Foundation Inc ($1.5M). Together the top 9 received $1.6M.
Grant Size Distribution
54 grants across all recorded years
The most common grant size was under $50K: 48 grants of 54 (89%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of 2025 grant dollars across all 9 itemized grants.
Cities
How The Jeffrey Horvitz Foundation gives
- Giving grew 539% from 2022 to 2025. Method
- In 2025 it paid out well above 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 $83K (2023) to $1.6M (2025). In 2025 it made 9 grants totaling $1.6M.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| The University of Massachusetts Foundation Inc Newton, MA | Caroline H. Horvitz Professorship in Mediterranean Archaeology | $1,500,000 |
| The University of Miami Coral Gables, FL | General & Unrestricted | $25,000 |
| Santa Clara University Santa Clara, CA | General & Unrestricted | $12,500 |
| Boston Community Pediatrics Boston, MA | General & Unrestricted | $10,000 |
| The Ocean Genome Legacy Center Nahant, MA | General & Unrestricted | $10,000 |
| Joslin Diabetes Center Boston, MA | Joslin Asian American Diabetes Fund | $5,000 |
| Epiphany School Dorchester, MA | General & Unrestricted | $2,500 |
| University of Florida Foundation Inc Gainesville, FL | Horvitz Japanese Ceramics Fund | $2,500 |
| The Trustee of Reservations Beverly, MA | General & Unrestricted | $1,000 |
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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 | $980,875 | $2,510,045 | $1,574,649 | $1,568,500 | 9 | $1,568,500 | $3,896 | $13,500 |
| 2024 | $45,479 | $1,647 | $99,815 | $97,000 | 8 | $97,000 | — | $3,694 |
| 2023 | $143,647 | $103,585 | $86,800 | $83,000 | 13 | $83,000 | — | $4,915 |
| 2022 | $126,862 | $150,000 | $285,074 | $245,570 | 13 | $245,570 | — | $10,375 |
| 2021 | $261,936 | $412,022 | $152,196 | $147,000 | 11 | $147,050 | $86,700 | $8,706 |
| 2020 | $89,796 | $150,927 | $359,413 | $357,000 | 20 | — | — | $9,710 |
Under IRS private-foundation payout rules, The Jeffrey Horvitz Foundation reported a distributable amount of $14K for 2025 — the minimum it must pay out in qualifying distributions.
Leadership & Key People
Officers and directors from IRS filings
The Jeffrey Horvitz Foundation is led by Jeffrey E. Horvitz, President since 2021 (on filings since 2020); none of the 3 officers listed in 2025 report compensation.
Officers on the 2025 filing
Jeffrey E. Horvitz
President
President & Trustee → President, 2021
On filings since 2020
1 hr/week
No compensation reported
Kathryn Sloan
Secretary
On filings since 2023
1 hr/week
No compensation reported
Paul Russo
Treasurer
On filings since 2023
1 hr/week
No compensation reported
Former officers (5)
- Former: Barbara J. Princiotta (2020–2022) — Treasurer
- Former: Kathryn C. Clark (2021–2022) — Secretary
- Former: Carol A. Hannigan (2020) — Secretary
- Former: Carol Horvitz (2020) — Trustee
- Former: Farms Fiduciary LLC (2020) — Trustee
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 The Jeffrey Horvitz Foundation
How much does The Jeffrey Horvitz Foundation give each year?
The Jeffrey Horvitz Foundation gave $1.6M across 9 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $97K across 8 grants.
What is The Jeffrey Horvitz Foundation's typical grant size?
The Jeffrey Horvitz Foundation's median grant in 2025 was $10,000, and its average grant was $174,278, across 9 grants on its 2025 IRS Form 990-PF.
Where does The Jeffrey Horvitz Foundation give grants?
The Jeffrey Horvitz Foundation gives mostly in Massachusetts: 97% of the grant dollars itemized on its 2025 IRS Form 990-PF went to recipients there. The most frequent recipient cities were Boston, MA (2 grants).
Does The Jeffrey Horvitz Foundation give general operating support?
Yes: 67% of The Jeffrey Horvitz Foundation's 2025 grants with a stated purpose (6 of 9) were for general or operating support, per its 2025 IRS Form 990-PF.
Who are The Jeffrey Horvitz Foundation's largest grantees?
The Jeffrey Horvitz Foundation's largest 2025 grantees include The University of Massachusetts Foundation Inc ($1,500,000), The University of Miami ($25,000) and Santa Clara University ($12,500), according to its 2025 IRS Form 990-PF. Together they received 98% of its itemized 2025 grant dollars.
How large is The Jeffrey Horvitz Foundation?
The Jeffrey Horvitz Foundation reported $981K in total assets on its 2025 IRS Form 990-PF. It paid out $1.6M in qualifying distributions that year, against a required minimum of $14K (roughly 5% of its investment assets).
What is The Jeffrey Horvitz Foundation's EIN?
The Jeffrey Horvitz Foundation's EIN (Employer Identification Number) is 34-1817950. 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 October 8, 2021)
- Updated Form 990-PF for fiscal year 2021 (received by the IRS July 13, 2022)
- Updated Form 990-PF for fiscal year 2022 (received by the IRS June 19, 2023)
- Updated Form 990-PF for fiscal year 2023 (received by the IRS May 15, 2024)
- Updated Form 990-PF for fiscal year 2024 (received by the IRS May 8, 2025)
- Updated Form 990-PF for fiscal year 2025 (received by the IRS April 23, 2026)
- IRS filings on file for fiscal years 2020–2025
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