Harry F Mariani Family Foundation
Preselected recipients only
Harry F Mariani Family Foundation is a private foundation in Locust Valley, New York. In tax year 2025 it gave $272,000 in 14 grants; the typical grant was $10,000 and the largest $68,000. 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$272,000
- Number of grants14
- Typical grant$10,000
- Largest grant$68,000
- Assets$6.8 million
- New grantees7%
Giving in 2025 was up from $200,000 the year before.
7% 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 | $240,000 | 24 | $5.6 million |
| 2024 | $200,000 | 14 | $6.0 million |
| 2025 | $272,000 | 14 | $6.8 million |
How to apply
Harry F Mariani Family 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 Harry F Mariani Family Foundation funds
Where it gives
Its grants went to recipients in 6 states, the most to New York.
| State | Grants | Amount |
|---|---|---|
| New York | 3 | $136,000 |
| South Carolina | 5 | $64,000 |
| Massachusetts | 3 | $33,000 |
| Indiana | 1 | $25,000 |
| Texas | 1 | $10,000 |
| Florida | 1 | $4,000 |
Grants paid in 2025
| Recipient | Purpose | Amount |
|---|---|---|
| Tisch Multiple Sclerosis Research Center New York Inc | General support | $68,000 |
| Northwell Health Foundation | General support | $56,000 |
| The Beaufort County Open Land Trust Inc | General support | $50,000 |
| Pingree School | General support | $27,000 |
| University of Notre Dame | General support | $25,000 |
| The Don Monti Memorial Research Foundation | General support | $12,000 |
| Coastal Conservation Association South Carolina | General support | $10,000 |
| Tulane University | General support | $10,000 |
| St Joseph's Children's Hospital Tampa | General support | $4,000 |
| Community Dispute Settlement Center | General support | $3,000 |
| Minuteman Senior Services | General support | $3,000 |
| North Charleston Animal Society | General support | $1,500 |
| Lowcountry Food Bank | General support | $1,500 |
| ONE80 Place | General support | $1,000 |
Officers and trustees
- James W Mariani
- Virginia A Mariani
- Kathryn Mariani Altemus
- John C Mariani
Questions people ask
Does Harry F Mariani Family Foundation accept grant applications?
No. Its IRS filing says it only makes contributions to preselected organizations.
How much does Harry F Mariani Family Foundation give?
$272,000 in tax year 2025, across 14 grants, with a typical grant of $10,000.
Who runs Harry F Mariani Family Foundation?
Its 2025 filing lists James W Mariani (Director/Sec./Treas.), Virginia A Mariani (Director), Kathryn Mariani Altemus (Director) and John C Mariani (Director).
What does Harry F Mariani Family Foundation fund?
Based on its grants, mainly health, science and research and education.