The Della Pietra Foundation
Preselected recipients only
The Della Pietra Foundation is a private foundation in Jericho, New York. In tax year 2025 it gave $5.8 million in 13 grants; the typical grant was $300,000 and the largest $1.2 million. It only gives to organizations it selects itself and does not accept unsolicited applications.
From its IRS Form 990-PF for tax year 2025.
- Grants paid, 2025$5.8 million
- Number of grants13
- Typical grant$300,000
- Largest grant$1.2 million
- Assets$78.2 million
- New grantees8%
Giving in 2025 was down from $6.1 million the year before.
8% of its 2025 grantees had not received a grant from it the year before, so most of its money goes to organizations it already funds.
Giving by year
| Tax year | Grants paid | Number of grants | Assets |
|---|---|---|---|
| 2023 | $4.6 million | 14 | $58.2 million |
| 2024 | $6.1 million | 15 | $70.8 million |
| 2025 | $5.8 million | 13 | $78.2 million |
How to apply
The Della Pietra Foundation says in its IRS filing that it only makes contributions to preselected organizations, so unsolicited applications are unlikely to be considered. Organizations it funds are usually invited.
What The Della Pietra Foundation funds
Where it gives
Its grants went to recipients in 5 states, the most to New York.
| State | Grants | Amount |
|---|---|---|
| New York | 7 | $2.9 million |
| California | 2 | $1.1 million |
| District of Columbia | 1 | $1.0 million |
| Massachusetts | 2 | $810,000 |
| Florida | 1 | $50,000 |
Grants paid in 2025
| Recipient | Purpose | Amount |
|---|---|---|
| Cold Spring Harbor Laboratory | Unrestricted | $1.2 million |
| Simons Laufer Mathematical Sciences Institute | Unrestricted | $1.1 million |
| Stony Brook Foundation | Unrestricted | $1.1 million |
| Surgeons Data Science Collective Inc | Unrestricted | $1.0 million |
| Friends of Ihes Inc Ny | Unrestricted | $510,000 |
| President and Fellows of Harvard College | Support the research on the swampland program under the direction of professor cumrun vafa | $510,000 |
| Pivot Works | Unrestricted | $300,000 |
| World Science Foundation | Unrestricted | $60,000 |
| Community Foundation of Collier County | Unrestricted | $50,000 |
| Planned Parenthood Hudson Peconic Action Fund Inc | Unrestricted | $25,000 |
| Gilbert and Sullivan Light Opera Company of Long Island Inc | Unrestricted | $20,000 |
| Harbor Country Day School | Unrestricted | $20,000 |
| High Desert Keepers Organization | Unrestricted | $5,000 |
Officers and trustees
- Barbara Amonson
- Vincent Dellapietra
Questions people ask
Does The Della Pietra Foundation accept grant applications?
No. Its IRS filing says it only makes contributions to preselected organizations.
How much does The Della Pietra Foundation give?
$5.8 million in tax year 2025, across 13 grants, with a typical grant of $300,000.
Who runs The Della Pietra Foundation?
Its 2025 filing lists Barbara Amonson (President) and Vincent Dellapietra (Secretary).
What does The Della Pietra Foundation fund?
Based on its grants, mainly science and research and education.