The William & Phyllis Mack Family Foundation Inc
Invitation OnlyFort Lee, New Jersey · EIN 22-3512719 · Private foundation
Grants paid (2024)$3.2M
Organizations funded53
Typical grant$6,867
Total assets$5.1M
Half of its grants to organizations were between $2,500 and $50,000.
From the return
How to apply
On its return for tax year 2024 the foundation checked the box saying it only makes contributions to preselected charitable organizations and does not accept unsolicited requests for funds.
What it funds
Share of grant lines on the latest return, classified from the purpose each grant states.
Where it gives
100% of grants went outside New Jersey.
Grants paid in tax year 2024
| Recipient | Location | Purpose | Amount |
|---|---|---|---|
| Guggenheim Museum | New York, NY | Charity | $820,000 |
| Northwell Health Foundation | New Hyde Park, NY | Charity | $788,000 |
| Uja Federation of New York | New York, NY | Charity | $300,000 |
| Jewish Federation of Palm Beach | West Palm Beach, FL | Charity | $151,000 |
| American Friends of the Israel Museum | New York, NY | Charity | $130,000 |
| Park Avenue Synagogue | New York, NY | Charity | $109,848 |
| Beit Ruth | Jericho, NY | Charity | $100,000 |
| Kravis Center for the Performing Arts | West Palm Beach, FL | Charity | $100,000 |
| The Jewish Museum | New York, NY | Charity | $95,000 |
| 92Y | New York, NY | Charity | $66,667 |
| Birthright Israel Foundation | Boca Raton, FL | Charity | $50,000 |
| Morselife Foundation Inc | West Palm Beach, FL | Charity | $50,000 |
| Target Als Foundation Inc | New York, NY | Charity | $50,000 |
| The New Jewish Home | New York, NY | Charity | $50,000 |
| Yeshiva University | New York, NY | Charity | $50,000 |
| The Society of the Four Arts | Palm Beach, FL | Charity | $29,000 |
| Norton Museum of Art | West Palm Beach, FL | Charity | $26,250 |
| Bruce and Marsha Moskowitz Foundation | West Palm Beach, FL | Charity | $25,000 |
| Connecticut Public Broadcasting | Hartford, CT | Charity | $25,000 |
| Gift of Life Marrow Registry | Boca Raton, FL | Charity | $25,000 |
| Mecox Bay Conservancy | Watermill, NY | Charity | $25,000 |
| The Wharton Fund | Philadelphia, PA | Charity | $25,000 |
| Town of Palm Beach United Way | Palm Beach, FL | Charity | $25,000 |
| American Friends of the Hebrew University | New York, NY | Charity | $10,000 |
| Israel Tennis & Education Centers Foundation | New York, NY | Charity | $10,000 |
| Palm Beach Synagogue | Palm Beach, FL | Charity | $10,000 |
| The Milkken Institute | New York, NY | Charity | $6,867 |
| The Museum of Modern Art | New York, NY | Charity | $6,000 |
| Acta | Washington, DC | Charity | $5,000 |
| Delivering Good | New York, NY | Charity | $5,000 |
| Federal Enforcement Homeland Security Fdn | New York, NY | Charity | $5,000 |
| Mount Sinai Health System Crystal Party | New York, NY | Charity | $5,000 |
| Palm Beach Civic Association | Palm Beach, FL | Charity | $5,000 |
| Solomon Institute Inc | Palm Beach, FL | Charity | $5,000 |
| Afmda | New York, NY | Charity | $3,600 |
| American Friends of the Israel Phil Orch | New York, NY | Charity | $3,000 |
| Peconic Land Trust | Southhampton, NY | Charity | $2,500 |
| Planned Parenthood | Hempstead, NY | Charity | $2,500 |
| Promise Fund of Florida | Palm Beach, FL | Charity | $2,500 |
| United States Holocaust Memorial Museum | Washington, DC | Charity | $2,500 |
| The Michael J Fox Foundation | New York, NY | Charity | $1,250 |
| Dolphins Challenge Cancer | Miami Gardens, FL | Charity | $1,000 |
| Friends of the Israel Defense Forces | Brooklyn, NY | Charity | $1,000 |
| New York Historical Society | New York, NY | Charity | $1,000 |
| How | Tulsa, OK | Charity | $750 |
| Breast Cancer Research Foundation | New York, NY | Charity | $550 |
| Dana-Farber Cancer Institute | Boston, MA | Charity | $500 |
| Jdc | New York, NY | Charity | $500 |
| Sbt Club Charitable Fund | Southhampton, NY | Charity | $500 |
| The Lustgarten Foundation | Woodbury, NY | Charity | $500 |
| The Resource Foundation | New York, NY | Charity | $500 |
| United Way of Palm Beach | West Palm Beach, FL | Charity | $500 |
| Big Brothers Big Sisters of Long Island | Islandia, NY | Charity | $100 |
Giving by year
| Tax year | Grants paid | Grant lines |
|---|---|---|
| 2024 | $3,213,882 | 53 |
| 2023 | $5,608,596 | 55 |
Sources
- IRS Form 990-PF, tax year 2024, filed Nov 7, 2025 - IRS e-file batch, object ID 202513119349101811
- IRS Tax Exempt Organization Search for EIN 22-3512719
- Profile updated Nov 5, 2026
Facts on this page come from the foundation's own IRS Form 990-PF filings as published by the IRS. Grantvello does not know whether a foundation is accepting proposals right now: a past grant is not an open opportunity. Always confirm current guidelines with the funder before applying.