Harry F Mariani Family Foundation
Harry F Mariani Family Foundation is a private foundation focused on Philanthropy, Voluntarism & Grantmaking, based in LOCUST VALLEY, NY. IRS filing data is available from 2020 through 2024. As of 2024, the organization holds $5.7M in total assets. In 2024, it awarded 14 grants totaling $200K. Net investment income was $186K.
Financial Overview
From 2024 IRS Form 990-PF · View filing
Total Assets
$5.7M
-0.6% YoY
Annual Giving
$200K
-16.7% YoY
Grant Count
14
-41.7% YoY
Avg Grant Size
$14K
+42.9% YoY
Under IRS private-foundation payout rules, Harry F Mariani Family Foundation reported a distributable amount of $291K for 2024 — the minimum it must pay out in qualifying distributions.
About Harry F Mariani Family Foundation
Based on IRS filings
Harry F Mariani Family Foundation is a private foundation focused on Philanthropy, Voluntarism & Grantmaking, based in LOCUST VALLEY, NY. IRS filing data is available from 2020 through 2024. As of 2024, the organization holds $5.7M in total assets. In 2024, it awarded 14 grants totaling $200K. Net investment income was $186K.
Focus Areas
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Geographic Focus
Where this funder awards grants
Grant Distribution by State
States
Cities
Financial History
Multi-year comparison from IRS filings
| Metric | 2024 | 2023 | 2022 |
|---|---|---|---|
| Total Assets | $5,663,180 | $5,697,947 | $5,799,590 |
| Revenue | $204,144 | $173,668 | $91,481 |
| Expenses | $238,489 | $275,392 | $370,042 |
| Qualifying Distributions | $220,102 | $259,051 | $340,072 |
| Net Investment Income | $185,757 | $157,327 | $74,661 |
| Distributable Amount | $291,166 | $259,416 | $271,518 |
Giving Over Time
Total grant dollars and number of grants per year
Grant Insights
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2024
Grant Size Distribution
92 grants across all recorded years
Giving History
Grant recipients and amounts by year
Among its reported 2024 grants, the largest include Northwell Health Foundation ($50,000), Tisch Multiple Sclerosis Research Center New York Inc ($45,000), The Beaufort County Open Land Trust Inc ($30,000).
| Recipient | Purpose | Amount |
|---|---|---|
| NORTHWELL HEALTH FOUNDATION HUNTINGTON, NY | GENERAL SUPPORT | $50,000 |
| THE BEAUFORT COUNTY OPEN LAND TRUST INC BEAUFORT, SC | GENERAL SUPPORT | $30,000 |
| COASTAL CONSERVATION ASSOCIATION SOUTH CAROLINA COLUMBIA, SC | GENERAL SUPPORT | $15,000 |
| ST JOSEPH'S CHILDREN'S HOSPITAL TAMPA TAMPA, FL | GENERAL SUPPORT | $2,500 |
| LOWCOUNTRY FOOD BANK CHARLESTON, SC | GENERAL SUPPORT | $1,000 |
| NORTH CHARLESTON ANIMAL SOCIETY NORTH CHARLESTON, SC | GENERAL SUPPORT | $1,000 |
| ONE80 PLACE CHARLESTON, SC | GENERAL SUPPORT | $500 |
| AMERICAN FRIENDS OF THE LONDON PHILHARMONIC ORCHESTRA NEW YORK, NY | GENERAL SUPPORT | $5,000 |
| TISCH MULTIPLE SCLEROSIS RESEARCH CENTER NEW YORK INC NEW YORK, NY | GENERAL SUPPORT | $45,000 |
| UNIVERSITY OF NOTRE DAME NOTRE DAME, IN | GENERAL SUPPORT | $25,000 |
Leadership & Key People
Officers and directors from IRS filings
Compensation Overview
From 2024 IRS filing
From 2024 filing
| Name | Title | Hours | Compensation |
|---|---|---|---|
| JAMES W MARIANI | DIRECTOR/SEC./TREAS. | 1 | — |
| VIRGINIA A MARIANI | DIRECTOR | 1 | — |
| KATHRYN MARIANI ALTEMUS | DIRECTOR | 1 | — |
| JOHN C MARIANI | DIRECTOR | 1 | — |
Subject Areas
Focus areas based on grantmaking activity
Frequently Asked Questions
What is Harry F Mariani Family Foundation?
Harry F Mariani Family Foundation is a private foundation focused on Philanthropy, Voluntarism & Grantmaking, based in LOCUST VALLEY, NY. It holds $5.7M in total assets as of 2024.
How large is Harry F Mariani Family Foundation?
As of 2024, Harry F Mariani Family Foundation holds $5.7M in total assets with $204K in annual revenue. It awarded 14 grants totaling $200K in 2024.
Where does Harry F Mariani Family Foundation operate?
Harry F Mariani Family Foundation has awarded grants in Connecticut, District of Columbia, Florida, Illinois, Indiana, Massachusetts, New York, South Carolina, Tennessee, Texas, Virginia.
What size grants does Harry F Mariani Family Foundation award?
In 2024, Harry F Mariani Family Foundation awarded 14 grants totaling $200K — an average of about $14K per grant, based on its IRS Form 990 filings.
How much is Harry F Mariani Family Foundation required to give away each year?
Private foundations must generally distribute about 5% of their assets annually. For 2024, Harry F Mariani Family Foundation reported a distributable amount of $291K on its IRS Form 990-PF — the minimum it must pay out in qualifying distributions.
What is Harry F Mariani Family Foundation's EIN?
Harry F Mariani Family Foundation's EIN (Employer Identification Number) is 84-3901549. IRS Form 990 filing data is available on this page for 2020–2024.
Explore Open Grants
Browse active grant opportunities in Harry F Mariani Family Foundation's focus areas in our free grants database
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Data last updated April 2026. Sourced from IRS Form 990-PF filings.