The William & Phyllis Mack Family | Foundation Profile
GrantBay analyzes IRS Form 990-PF data to help grant seekers find fit funders like The William & Phyllis Mack Family. Data shown is extracted from Form 990-PF filings.
EIN: 22-3512719
Foundation Overview
Based in Fort Lee, NJ, The William & Phyllis Mack Family has awarded 317 grants totaling $29,462,123 to organizations in New York, Connecticut and 9 other states, plus international recipients. Individual grants range from $100 to $2,000,000, with a median award of $5,000.
Latest Tax Year
2024
Total Giving (all years)
$29,462,123
Total Assets
$5,127,984
Median Grant (all grants)
$5,000
Latest Form 990-PF Snapshot
Total Grants
53
Median Grant
$6,867
% Median Grant Growth
+37%
(vs previous year)
Data extracted from IRS Form 990-PF filings. Last filing year:
February 2026
Foundation Intelligence
Advanced analytics and strategic insights to help nonprofit organizations assess grant opportunities and optimize their application strategies
New Applicant Friendliness
Balanced Approach: 32%
17 of 53 recipients (32%) were new grantees. Foundation maintains loyal partnerships while remaining open to qualified new applicants with strong proposals.
Geographic Focus
New York
62% of grants are awarded in New York, with additional funding distributed across 11 other locations. The foundation balances regional focus with broader geographic diversity. Within New York, funding concentrates in New York (69%), Southhampton (5%), New Hyde Park (4%).
Funding Trajectory
+1%
Stable funding levels with 1% change over 4 years indicate consistent grant-making capacity and predictable philanthropic resources. This stability suggests reliable ongoing funding opportunities.
Program Areas
Community Projects
Highly focused on community projects with 100% of funding dedicated to this sector. This specialization indicates deep expertise and committed investment in the field.
Where is The Money Going?
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Grants & Funding
Analyzing past grantees provides valuable insights into The William & Phyllis Mack Family's funding preferences, organizational priorities, and grant making patterns. This historical data helps potential applicants understand the foundation's strategic focus and identify successful funding approaches.
| Name | Amount | Location | Purpose | Year |
|---|---|---|---|---|
| 92y | $66,667 | New York, NY, US | Charity | 2024 |
| Acta | $5,000 | Washington, DC, US | Charity | 2024 |
| Afmda | $3,600 | New York, NY, US | Charity | 2024 |
| American Friends Of The Hebrew University | $10,000 | New York, NY, US | Charity | 2024 |
| American Friends Of The Israel Museum | $130,000 | New York, NY, US | Charity | 2024 |
| American Friends Of The Israel Phil Orch | $3,000 | New York, NY, US | Charity | 2024 |
| Beit Ruth | $100,000 | Jericho, NY, US | Charity | 2024 |
| Big Brothers Big Sisters Of Long Island | $100 | Islandia, NY, US | Charity | 2024 |
| Birthright Israel Foundation | $50,000 | Boca Raton, FL, US | Charity | 2024 |
| Bruce And Marsha Moskowitz Foundation | $25,000 | West Palm Beach, FL, US | Charity | 2024 |
| Connecticut Public Broadcasting | $25,000 | Hartford, CT, US | Charity | 2024 |
| Dana-farber Cancer Institute | $500 | Boston, MA, US | Charity | 2024 |
| Delivering Good | $5,000 | New York, NY, US | Charity | 2024 |
| Dolphins Challenge Cancer | $1,000 | Miami Gardens, FL, US | Charity | 2024 |
| Federal Enforcement Homeland Security Fdn | $5,000 | New York, NY, US | Charity | 2024 |
| Friends Of The Israel Defense Forces | $1,000 | Brooklyn, NY, US | Charity | 2024 |
| Gift Of Life Marrow Registry | $25,000 | Boca Raton, FL, US | Charity | 2024 |
| Guggenheim Museum | $820,000 | New York, NY, US | Charity | 2024 |
| How | $750 | Tulsa, OK, US | Charity | 2024 |
| Israel Tennis & Education Centers Foundation | $10,000 | New York, NY, US | Charity | 2024 |
| Jdc | $500 | New York, NY, US | Charity | 2024 |
| Jewish Federation Of Palm Beach | $151,000 | West Palm Beach, FL, US | Charity | 2024 |
| Kravis Center For The Performing Arts | $100,000 | West Palm Beach, FL, US | Charity | 2024 |
| Mecox Bay Conservancy | $25,000 | Watermill, NY, US | Charity | 2024 |
| Mount Sinai Health System Crystal Party | $5,000 | New York, NY, US | Charity | 2024 |
| Morselife Foundation Inc | $50,000 | West Palm Beach, FL, US | Charity | 2024 |
| New York Historical Society | $1,000 | New York, NY, US | Charity | 2024 |
| Northwell Health Foundation | $788,000 | New Hyde Park, NY, US | Charity | 2024 |
| Norton Museum Of Art | $26,250 | West Palm Beach, FL, US | Charity | 2024 |
| Palm Beach Civic Association | $5,000 | Palm Beach, FL, US | Charity | 2024 |
| Palm Beach Synagogue | $10,000 | Palm Beach, FL, US | Charity | 2024 |
| Park Avenue Synagogue | $109,848 | New York, NY, US | Charity | 2024 |
| Peconic Land Trust | $2,500 | Southhampton, NY, US | Charity | 2024 |
| Planned Parenthood | $2,500 | Hempstead, NY, US | Charity | 2024 |
| Promise Fund Of Florida | $2,500 | Palm Beach, FL, US | Charity | 2024 |
| Sbt Club Charitable Fund | $500 | Southhampton, NY, US | Charity | 2024 |
| Solomon Institute Inc | $5,000 | Palm Beach, FL, US | Charity | 2024 |
| Target Als Foundation Inc | $50,000 | New York, NY, US | Charity | 2024 |
| Breast Cancer Research Foundation | $550 | New York, NY, US | Charity | 2024 |
| The Jewish Museum | $95,000 | New York, NY, US | Charity | 2024 |
| The Lustgarten Foundation | $500 | Woodbury, NY, US | Charity | 2024 |
| The Michael J Fox Foundation | $1,250 | New York, NY, US | Charity | 2024 |
| The Milkken Institute | $6,867 | New York, NY, US | Charity | 2024 |
| The Museum Of Modern Art | $6,000 | New York, NY, US | Charity | 2024 |
| The New Jewish Home | $50,000 | New York, NY, US | Charity | 2024 |
| The Resource Foundation | $500 | New York, NY, US | Charity | 2024 |
| The Society Of The Four Arts | $29,000 | Palm Beach, FL, US | Charity | 2024 |
| The Wharton Fund | $25,000 | Philadelphia, PA, US | Charity | 2024 |
| Town Of Palm Beach United Way | $25,000 | Palm Beach, FL, US | Charity | 2024 |
| Uja Federation Of New York | $300,000 | New York, NY, US | Charity | 2024 |
| United Way Of Palm Beach | $500 | West Palm Beach, FL, US | Charity | 2024 |
| United States Holocaust Memorial Museum | $2,500 | Washington, DC, US | Charity | 2024 |
| Yeshiva University | $50,000 | New York, NY, US | Charity | 2024 |
| 92y | $66,667 | New York, NY, US | Charity | 2023 |
| Adl Nynj | $5,000 | New York, NY, US | Charity | 2023 |
| Albert Einstein College Of Medicine | $5,000 | Bronx, NY, US | Charity | 2023 |
| Alzheimer's Drug Discovery Foundation | $5,000 | New York, NY, US | Charity | 2023 |
| American Friends Of The Israel Museum | $135,000 | New York, NY, US | Charity | 2023 |
| Basser Center For Brca | $500 | Philadelphia, PA, US | Charity | 2023 |
| Birthright Israel Foundation | $20,000 | Boca Raton, FL, US | Charity | 2023 |
| Boca Rio Golf Club | $500 | Boca Raton, FL, US | Charity | 2023 |
| Breast Cancer Research Foundation | $1,300 | New York, NY, US | Charity | 2023 |
| Bruce And Marsha Moskowitz Foundation | $25,000 | West Palm Beach, FL, US | Charity | 2023 |
| Center For Creative Education | $1,500 | Kingston, NY, US | Charity | 2023 |
| Children's Hospital Los Angeles | $1,000 | Los Angeles, CA, US | Charity | 2023 |
| Dolphins Challenge Cancer | $1,000 | Miami Gardens, FL, US | Charity | 2023 |
| Fidf | $1,000 | New York, NY, US | Charity | 2023 |
| Foundation To Combat Antisemitism | $1,000 | New York, NY, US | Charity | 2023 |
| Friends Of The Israel Defense Forces | $100,500 | Brooklyn, NY, US | Charity | 2023 |
| Guggenheim Museum | $920,000 | New York, NY, US | Charity | 2023 |
| How | $750 | Tulsa, OK, US | Charity | 2023 |
| Israel Tennis & Education Centers Foundation | $10,000 | New York, NY, US | Charity | 2023 |
| Jewish Federation Of Palm Beach | $151,500 | West Palm Beach, FL, US | Charity | 2023 |
| Juvenile Diabetes Research Foundation | $1,000 | Melville, NY, US | Charity | 2023 |
| Katz Women's Hospital | $5,000 | Queens, NY, US | Charity | 2023 |
| Kravis Center For The Performing Arts | $25,000 | West Palm Beach, FL, US | Charity | 2023 |
| Lincoln Center For Performing Arts | $12,500 | New York, NY, US | Charity | 2023 |
| Morselife Foundation Inc | $70,000 | West Palm Beach, FL, US | Charity | 2023 |
| Ny Junior Tennis & Learning | $1,000 | Long Island City, NY, US | Charity | 2023 |
| Northwell Health Foundation | $783,000 | New Hyde Park, NY, US | Charity | 2023 |
| Norton Museum Of Art | $1,250 | West Palm Beach, FL, US | Charity | 2023 |
| Palm Beach Civic Association | $5,000 | Palm Beach, FL, US | Charity | 2023 |
| Palm Beach Country Club Foundation | $5,000 | Palm Beach, FL, US | Charity | 2023 |
| Palm Beach Synagogue | $11,000 | Palm Beach, FL, US | Charity | 2023 |
| Park Avenue Synagogue | $110,768 | New York, NY, US | Charity | 2023 |
| Peconic Land Trust | $2,750 | Southhampton, NY, US | Charity | 2023 |
| Physicians For Human Rights | $2,500 | New York, NY, US | Charity | 2023 |
| Planned Parenthood | $2,500 | Hempstead, NY, US | Charity | 2023 |
| Prostate Cancer Foundation | $25,000 | Santa Monica, CA, US | Charity | 2023 |
| Rising Treetops At Oakhurst | $500 | Oakhurst, NJ, US | Charity | 2023 |
| Sbt Club Charitable Fund | $500 | Southhampton, NY, US | Charity | 2023 |
| The Broadway Caresequity Fights Aid | $1,000 | New York, NY, US | Charity | 2023 |
| The Jewish Museum | $82,500 | New York, NY, US | Charity | 2023 |
| The Leukemia & Lymphoma Society | $1,000 | Rye Brook, NY, US | Charity | 2023 |
| The Lustgarten Foundation | $500 | Woodbury, NY, US | Charity | 2023 |
| The Michael J Fox Foundation | $500 | New York, NY, US | Charity | 2023 |
| The Milkken Institute | $5,611 | New York, NY, US | Charity | 2023 |
| The Museum Of Jewish Heritage | $500 | New York, NY, US | Charity | 2023 |
| The New Jewish Home | $50,000 | New York, NY, US | Charity | 2023 |
| The Society Of The Four Arts | $25,000 | Palm Beach, FL, US | Charity | 2023 |
| The Spgas | $500 | North Palm Beach, FL, US | Charity | 2023 |
| The Wharton Fund | $25,000 | Philadelphia, PA, US | Charity | 2023 |
| Town Of Palm Beach United Way | $25,000 | Palm Beach, FL, US | Charity | 2023 |
| Uja Federation Of New York | $400,000 | New York, NY, US | Charity | 2023 |
| United Jewish Appeal | $400,000 | Greenvale, NY, US | Charity | 2023 |
| United Way Of Palm Beach | $25,000 | West Palm Beach, FL, US | Charity | 2023 |
| University Of Pennsylvania | $2,000,000 | Philadelphia, PA, US | Charity | 2023 |
| Yeshiva University | $50,000 | New York, NY, US | Charity | 2023 |
| 92y | $66,667 | New York, NY, US | Charity | 2022 |
| Albert Einstein College Of Medicine | $500 | Bronx, NY, US | Charity | 2022 |
| Alzheimer's Drug Discovery Foundation | $3,000 | New York, NY, US | Charity | 2022 |
| American Friends Of The Hebrew University | $1,800 | New York, NY, US | Charity | 2022 |
| American Friends Of The Israel Museum | $135,000 | New York, NY, US | Charity | 2022 |
| Birthright Israel Foundation | $25,000 | Boca Raton, FL, US | Charity | 2022 |
| Boca Rio Golf Club | $500 | Boca Raton, FL, US | Charitycharity | 2022 |
| Bruce And Marsha Moskowitz Foundation | $25,000 | West Palm Beach, FL, US | Charity | 2022 |
| Brigham & Women's Hospital | $5,000 | Palm Beach, NY, US | Charity | 2022 |
| Brooklyn Tech Alumni Foundation | $25,000 | Brooklyn, NY, US | Charity | 2022 |
| Center For Creative Education | $1,500 | Kingston, NY, US | Charity | 2022 |
| Chabad At Lehigh | $1,800 | Bethlehem, PA, US | Charity | 2022 |
| City Of Hope | $1,000 | Duarte, CA, US | Charity | 2022 |
| Courts Of Dreams Foundation | $2,000 | New York, NY, US | Charity | 2022 |
| Friends Of Jcc Krakow | $500 | Suffern, NY, US | Charity | 2022 |
| Gift Of Life Marrow | $5,000 | Boca Raton, FL, US | Charity | 2022 |
| Guggenheim Museum | $670,000 | New York, NY, US | Charity | 2022 |
| How | $500 | Tulsa, OK, US | Charity | 2022 |
| Israel Tennis & Education Centers Foundation | $7,500 | New York, NY, US | Charity | 2022 |
| Jewish Federation Of Palm Beach | $50,500 | West Palm Beach, FL, US | Charity | 2022 |
| Lupus Research Alliance | $5,000 | New York, NY, US | Charity | 2022 |
| Morselife Foundation Inc | $21,000 | West Palm Beach, FL, US | Charity | 2022 |
| New York Restoration Project | $12,500 | New York, NY, US | Charity | 2022 |
| Northwell Health Foundation | $700,250 | New Hyde Park, NY, US | Charity | 2022 |
| Orphan Disease Pathway Project | $18,000 | New York, NY, US | Charity | 2022 |
| Palm Beach Country Club Foundation | $3,500 | Palm Beach, FL, US | Charity | 2022 |
| Park Avenue Synagogue | $243,213 | New York, NY, US | Charity | 2022 |
| Peconic Land Trust | $2,750 | Southhampton, NY, US | Charity | 2022 |
| Prep For Prep | $5,000 | New York, NY, US | Charity | 2022 |
| Sbt Club Charitable Fund | $500 | Southhampton, NY, US | Charity | 2022 |
| The Jewish Museum | $68,000 | New York, NY, US | Charity | 2022 |
| The Leo Baeck Institute | $12,000 | New York, NY, US | Charity | 2022 |
| The Lustgarten Foundation | $500 | Woodbury, NY, US | Charity | 2022 |
| The Museum Of Jewish Heritage | $2,500 | New York, NY, US | Charity | 2022 |
| The New Jewish Home | $50,000 | New York, NY, US | Charity | 2022 |
| The Society Of The Four Arts | $10,000 | Palm Beach, FL, US | Charity | 2022 |
| The Warton Fund | $25,000 | Philadelphia, PA, US | Charity | 2022 |
| Town Of Palm Beach United Way | $75,000 | Palm Beach, FL, US | Charitycharitycharity | 2022 |
| Uja Federation Of New York | $6,000 | New York, NY, US | Charity | 2022 |
| United States Holocaust Memorial Museum | $30,000 | New York, NY, US | Charity | 2022 |
| United Way Of Palm Beach | $500 | West Palm Beach, FL, US | Charity | 2022 |
| University Of Pennsylvania | $2,000,000 | Philadelphia, PA, US | Charity | 2022 |
| Yeshiva University | $50,000 | New York, NY, US | Charity | 2022 |
| King Edward Vii | $1,000 | London, Foreign, UK | Charity | 2022 |
| La Salle Academy | $5,000 | New York, NY, US | Charity | 2022 |
| Life | $1,800 | Southfield, MI, US | Charity | 2022 |
| 92y | $66,667 | New York, NY, US | Charity | 2022 |
| Albert Einstein College Of Medicine | $500 | Bronx, NY, US | Charity | 2022 |
| Alzheimer's Drug Discovery Foundation | $3,000 | New York, NY, US | Charity | 2022 |
| American Friends Of The Hebrew University | $1,800 | New York, NY, US | Charity | 2022 |
| American Friends Of The Israel Museum | $135,000 | New York, NY, US | Charity | 2022 |
| Birthright Israel Foundation | $25,000 | Boca Raton, FL, US | Charity | 2022 |
| Boca Rio Golf Club | $500 | Boca Raton, FL, US | Charitycharity | 2022 |
| Bruce And Marsha Moskowitz Foundation | $25,000 | West Palm Beach, FL, US | Charity | 2022 |
| Brigham & Women's Hospital | $5,000 | Palm Beach, NY, US | Charity | 2022 |
| Brooklyn Tech Alumni Foundation | $25,000 | Brooklyn, NY, US | Charity | 2022 |
| Center For Creative Education | $1,500 | Kingston, NY, US | Charity | 2022 |
| Chabad At Lehigh | $1,800 | Bethlehem, PA, US | Charity | 2022 |
| City Of Hope | $1,000 | Duarte, CA, US | Charity | 2022 |
| Courts Of Dreams Foundation | $2,000 | New York, NY, US | Charity | 2022 |
| Friends Of Jcc Krakow | $500 | Suffern, NY, US | Charity | 2022 |
| Gift Of Life Marrow | $5,000 | Boca Raton, FL, US | Charity | 2022 |
| Guggenheim Museum | $670,000 | New York, NY, US | Charity | 2022 |
| How | $500 | Tulsa, OK, US | Charity | 2022 |
| Israel Tennis & Education Centers Foundation | $7,500 | New York, NY, US | Charity | 2022 |
| Jewish Federation Of Palm Beach | $50,500 | West Palm Beach, FL, US | Charity | 2022 |
| Lupus Research Alliance | $5,000 | New York, NY, US | Charity | 2022 |
| Morselife Foundation Inc | $21,000 | West Palm Beach, FL, US | Charity | 2022 |
| New York Restoration Project | $12,500 | New York, NY, US | Charity | 2022 |
| Northwell Health Foundation | $700,250 | New Hyde Park, NY, US | Charity | 2022 |
| Orphan Disease Pathway Project | $18,000 | New York, NY, US | Charity | 2022 |
| Palm Beach Country Club Foundation | $3,500 | Palm Beach, FL, US | Charity | 2022 |
| Park Avenue Synagogue | $243,213 | New York, NY, US | Charity | 2022 |
| Peconic Land Trust | $2,750 | Southhampton, NY, US | Charity | 2022 |
| Prep For Prep | $5,000 | New York, NY, US | Charity | 2022 |
| Sbt Club Charitable Fund | $500 | Southhampton, NY, US | Charity | 2022 |
| The Jewish Museum | $68,000 | New York, NY, US | Charity | 2022 |
| The Leo Baeck Institute | $12,000 | New York, NY, US | Charity | 2022 |
| The Lustgarten Foundation | $500 | Woodbury, NY, US | Charity | 2022 |
| The Museum Of Jewish Heritage | $2,500 | New York, NY, US | Charity | 2022 |
| The New Jewish Home | $50,000 | New York, NY, US | Charity | 2022 |
| The Society Of The Four Arts | $10,000 | Palm Beach, FL, US | Charity | 2022 |
| The Warton Fund | $25,000 | Philadelphia, PA, US | Charity | 2022 |
| Town Of Palm Beach United Way | $75,000 | Palm Beach, FL, US | Charitycharitycharity | 2022 |
| Uja Federation Of New York | $6,000 | New York, NY, US | Charity | 2022 |
| United States Holocaust Memorial Museum | $30,000 | New York, NY, US | Charity | 2022 |
| United Way Of Palm Beach | $500 | West Palm Beach, FL, US | Charity | 2022 |
| University Of Pennsylvania | $2,000,000 | Philadelphia, PA, US | Charity | 2022 |
| Yeshiva University | $50,000 | New York, NY, US | Charity | 2022 |
| King Edward Vii | $1,000 | London, Foreign, UK | Charity | 2022 |
| La Salle Academy | $5,000 | New York, NY, US | Charity | 2022 |
| Life | $1,800 | Southfield, MI, US | Charity | 2022 |
| 92y | $66,667 | New York, NY, US | Charity | 2022 |
| Albert Einstein College Of Medicine | $500 | Bronx, NY, US | Charity | 2022 |
| Alzheimer's Drug Discovery Foundation | $3,000 | New York, NY, US | Charity | 2022 |
| American Friends Of The Hebrew University | $1,800 | New York, NY, US | Charity | 2022 |
| American Friends Of The Israel Museum | $135,000 | New York, NY, US | Charity | 2022 |
| Birthright Israel Foundation | $25,000 | Boca Raton, FL, US | Charity | 2022 |
| Boca Rio Golf Club | $500 | Boca Raton, FL, US | Charitycharity | 2022 |
| Bruce And Marsha Moskowitz Foundation | $25,000 | West Palm Beach, FL, US | Charity | 2022 |
| Brigham & Women's Hospital | $5,000 | Palm Beach, NY, US | Charity | 2022 |
| Brooklyn Tech Alumni Foundation | $25,000 | Brooklyn, NY, US | Charity | 2022 |
| Center For Creative Education | $1,500 | Kingston, NY, US | Charity | 2022 |
| Chabad At Lehigh | $1,800 | Bethlehem, PA, US | Charity | 2022 |
| City Of Hope | $1,000 | Duarte, CA, US | Charity | 2022 |
| Courts Of Dreams Foundation | $2,000 | New York, NY, US | Charity | 2022 |
| Friends Of Jcc Krakow | $500 | Suffern, NY, US | Charity | 2022 |
| Gift Of Life Marrow | $5,000 | Boca Raton, FL, US | Charity | 2022 |
| Guggenheim Museum | $670,000 | New York, NY, US | Charity | 2022 |
| How | $500 | Tulsa, OK, US | Charity | 2022 |
| Israel Tennis & Education Centers Foundation | $7,500 | New York, NY, US | Charity | 2022 |
| Jewish Federation Of Palm Beach | $50,500 | West Palm Beach, FL, US | Charity | 2022 |
| Lupus Research Alliance | $5,000 | New York, NY, US | Charity | 2022 |
| Morselife Foundation Inc | $21,000 | West Palm Beach, FL, US | Charity | 2022 |
| New York Restoration Project | $12,500 | New York, NY, US | Charity | 2022 |
| Northwell Health Foundation | $700,250 | New Hyde Park, NY, US | Charity | 2022 |
| Orphan Disease Pathway Project | $18,000 | New York, NY, US | Charity | 2022 |
| Palm Beach Country Club Foundation | $3,500 | Palm Beach, FL, US | Charity | 2022 |
| Park Avenue Synagogue | $243,213 | New York, NY, US | Charity | 2022 |
| Peconic Land Trust | $2,750 | Southhampton, NY, US | Charity | 2022 |
| Prep For Prep | $5,000 | New York, NY, US | Charity | 2022 |
| Sbt Club Charitable Fund | $500 | Southhampton, NY, US | Charity | 2022 |
| The Jewish Museum | $68,000 | New York, NY, US | Charity | 2022 |
| The Leo Baeck Institute | $12,000 | New York, NY, US | Charity | 2022 |
| The Lustgarten Foundation | $500 | Woodbury, NY, US | Charity | 2022 |
| The Museum Of Jewish Heritage | $2,500 | New York, NY, US | Charity | 2022 |
| The New Jewish Home | $50,000 | New York, NY, US | Charity | 2022 |
| The Society Of The Four Arts | $10,000 | Palm Beach, FL, US | Charity | 2022 |
| The Warton Fund | $25,000 | Philadelphia, PA, US | Charity | 2022 |
| Town Of Palm Beach United Way | $75,000 | Palm Beach, FL, US | Charitycharitycharity | 2022 |
| Uja Federation Of New York | $6,000 | New York, NY, US | Charity | 2022 |
| United States Holocaust Memorial Museum | $30,000 | New York, NY, US | Charity | 2022 |
| United Way Of Palm Beach | $500 | West Palm Beach, FL, US | Charity | 2022 |
| University Of Pennsylvania | $2,000,000 | Philadelphia, PA, US | Charity | 2022 |
| Yeshiva University | $50,000 | New York, NY, US | Charity | 2022 |
| King Edward Vii | $1,000 | London, Foreign, UK | Charity | 2022 |
| La Salle Academy | $5,000 | New York, NY, US | Charity | 2022 |
| Life | $1,800 | Southfield, MI, US | Charity | 2022 |
| 92y | $66,667 | New York, NY, US | Charity | 2021 |
| Alliance For Cancer Gene Therapy | $350 | Stamford, CT, US | Charitycharity | 2021 |
| American Friends Of The Hebrew University | $2,500 | New York, NY, US | Charity | 2021 |
| American Friends Of The Israel Museum | $25,000 | New York, NY, US | Charity | 2021 |
| Boca Rio Golf Club | $250 | Boca Raton, FL, US | Charity | 2021 |
| Bruce And Marsha Moskowitz Foundation | $25,000 | West Palm Beach, FL, US | Charitycharity | 2021 |
| Central Park Conservancy | $1,000 | New York, NY, US | Charity | 2021 |
| East 62nd Street Association Inc | $100 | New York, NY, US | Charity | 2021 |
| Fifth Avenue Synagogue | $1,800 | New York, NY, US | Charity | 2021 |
| Friends Of The Israel Defence Forces | $5,000 | New York, NY, US | Charity | 2021 |
| Guggenheim Museum | $1,020,000 | New York, NY, US | Charity | 2021 |
| Guild Hall Of East Hampton Inc | $500 | East Hampton, NY, US | Charity | 2021 |
| How | $500 | Tulsa, OK, US | Charity | 2021 |
| Henry Street Settlement | $1,000 | New York, NY, US | Charity | 2021 |
| Icahn School Of Medicine At Mount Sinai | $5,000 | New York, NY, US | Charity | 2021 |
| Israel Healthcare Foundation | $500 | New York, NY, US | Charity | 2021 |
| Israel Tennis & Education Centers Foundation | $10,000 | New York, NY, US | Charity | 2021 |
| Jewish Federation Of Palm Beach | $50,000 | West Palm Beach, FL, US | Charity | 2021 |
| De La Salle Academy | $5,000 | New York, NY, US | Charity | 2021 |
| Lupus Research Alliance | $2,500 | New York, NY, US | Charity | 2021 |
| Northwell Health Foundation | $710,500 | New Hyde Park, NY, US | Charity | 2021 |
| Norton Museum Of Art | $15,000 | West Palm Beach, FL, US | Charity | 2021 |
| Oxalosis & Hyperoxaluria Foundation | $500 | New Paltz, NY, US | Charity | 2021 |
| Palm Beach Civic Association | $5,000 | Palm Beach, FL, US | Charity | 2021 |
| Palm Beach Country Club Foundation | $3,500 | Palm Beach, FL, US | Charity | 2021 |
| Park Avenue Synagogue | $242,023 | New York, NY, US | Charity | 2021 |
| Sbt Club Charitable Fund | $1,000 | Los Angeles, CA, US | Charity | 2021 |
| Student Opportunity Fund | $1,000 | Woodmere, NY, US | Charity | 2021 |
| The Jewish Museum | $68,000 | New York, NY, US | Charity | 2021 |
| The Leukemia & Lymphoma Society | $200 | New York, NY, US | Charity | 2021 |
| The Lustgarten Foundation | $500 | Woodbury, NY, US | Charity | 2021 |
| The Society Of The Four Arts | $10,000 | Palm Beach, FL, US | Charity | 2021 |
| The Wharton Fund | $25,000 | Philadelphia, PA, US | Charity | 2021 |
| Town Of Palm Beach United Way | $10,000 | Palm Beach, FL, US | Charity | 2021 |
| University Of Pennsylvania | $2,000,000 | Philadelphia, PA, US | Charity | 2021 |
| 92y | $5,000 | New York, NY, US | Charity | 2020 |
| Birthright Israel Foundation | $5,000 | New York, NY, US | Charity | 2020 |
| American Friends Of The Israel Museum | $10,000 | New York, NY, US | Charitycharity | 2020 |
| Atlantic Golf Club Education Fund | $1,750 | New York, NY, US | Charity | 2020 |
| Connecticut Public Broadcasting | $10,000 | Hartford, CT, US | Charitycharity | 2020 |
| Cura Foundation | $1,000 | New York, NY, US | Charity | 2020 |
| Bruce And Marsha Moskowitz Foundation | $25,000 | West Palm Beach, FL, US | Charity | 2020 |
| Endometriosis Foundation | $5,000 | New York, NY, US | Charity | 2020 |
| Father Mark Connell | $1,000 | Newburgh, NY, US | Charity | 2020 |
| Florida International University | $1,000 | Aventura, FL, US | Charity | 2020 |
| Gift Of Life Marrow Registry | $1,000 | Boca Raton, FL, US | Charity | 2020 |
| Guggenheim Museum | $1,345,000 | New York, NY, US | Charity | 2020 |
| Israel Tennis Centers Foundation | $2,000 | New York, NY, US | Charity | 2020 |
| Jewish Federation Of Palm Beach | $50,000 | West Palm Beach, FL, US | Charity | 2020 |
| Lupus Research Alliance | $2,500 | New York, NY, US | Charity | 2020 |
| Morselife Foundation Inc | $1,000 | West Palm Beach, FL, US | Charity | 2020 |
| Mother Ame Zion Church | $5,000 | New Hyde Park, NY, US | Charity | 2020 |
| Museum Of American Finance | $5,000 | New York, NY, US | Charity | 2020 |
| New York Philharmonic | $2,500 | New York, NY, US | Charity | 2020 |
| Northwell Health Foundation | $303,000 | New Hyde Park, NY, US | Charity | 2020 |
| Norton Museum Of Art | $15,000 | West Palm Beach, FL, US | Charity | 2020 |
| Orphan Disease Pathway Project | $5,000 | New York, NY, US | Charity | 2020 |
| Oxalosis & Hyperoxaluria Foundation | $1,000 | New Paltz, NY, US | Charity | 2020 |
| Palm Beach Civic Association | $5,000 | Palm Beach, FL, US | Charity | 2020 |
| Palm Beach Country Club Foundation | $2,806 | Palm Beach, FL, US | Charity | 2020 |
| Park Avenue Synagogue | $200,359 | New York, NY, US | Charity | 2020 |
| Peconic Land Trust | $2,500 | Southampton, NY, US | Charity | 2020 |
| Physicians For Human Rights | $2,500 | New York, NY, US | Charity | 2020 |
| Sbt Club Charitable Fund | $1,000 | Los Angeles, CA, US | Charity | 2020 |
| The Jewish Museum | $118,000 | New York, NY, US | Charity | 2020 |
| The Lustgarten Foundation | $500 | Woodbury, NY, US | Charity | 2020 |
| The Society Of The Four Arts | $23,000 | Palm Beach, FL, US | Charity | 2020 |
| The Wharton Fund | $25,000 | Philadelphia, PA, US | Charity | 2020 |
| Town Of Palm Beach United Way | $10,000 | Palm Beach, FL, US | Charity | 2020 |
| University Of Pennsylvania | $1,000,000 | Philadelphia, PA, US | Charity | 2020 |
| Ustamidwest Tennis & Education Foundation | $1,000 | Indianapolis, IN, US | Charity | 2020 |
Foundations Similar to The William & Phyllis Mack Family
Discover 5 foundations with comparable assets ($5,071,263-$5,202,130), similar grant patterns, and geographic focus in NJ that may also align with your organization's funding needs and grant seeking strategy.
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Contact Information
Official contact details for The William & Phyllis Mack Family as registered with the IRS. These details are essential for grant applications, correspondence, and due diligence processes.
| EIN | 22-3512719 |
| Website | N/A |
| Address | ONE BRIDGE PLAZA 260 Fort Lee, NJ 07024-0000 |
Key People (4)
Board members, trustees, and key staff who oversee The William & Phyllis Mack Family's grant making decisions and strategic direction. Understanding leadership composition can provide insights into foundation priorities and potential networking opportunities.
| Trustee | William Mack |
|---|---|
| Trustee | Phyllis Mack |
| Trustee | Richard Mack |
| Trustee | Stephen Mack |
Forms 990-PF
IRS Form 990-PF filings provide comprehensive financial information, grant details, and operational data. These documents are essential resources for understanding foundation capacity, giving patterns, and strategic priorities.
Form 990-PF Research Tips
- Review Part XV for detailed grant recipient information and funding purposes
- Check Part I for total assets, annual giving amounts, and payout requirements
- Examine Part VIII for key personnel compensation and board structure
- Look for trends across multiple years to understand giving patterns
About This Foundation Profile
This comprehensive foundation profile for The William & Phyllis Mack Family is powered by Grant Bay's advanced foundation research platform. Our system analyzes IRS Form 990-PF filings, grant histories, and philanthropic patterns to provide nonprofit organizations with actionable intelligence for grant seeking success.
Data Sources & Accuracy
All information is derived from official IRS filings and public records. Grant Bay processes thousands of Form 990-PF documents to extract grant details, financial data, and organizational information. Data accuracy depends on foundation reporting quality and IRS filing completeness.
Research Applications
Use this profile for prospect research, grant strategy development, application preparation, and relationship building. Combine this data with additional research on foundation priorities, application processes, and board member backgrounds for comprehensive grant seeking strategies.
Data Currency: Last updated
February 2026
based on IRS Form 990-PF filings. Foundation information reflects most recent available tax year data.