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Also known as: FOUNDATION INC
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William And Phyllis Mack Family Foundation Inc. is a private corporation based in FORT LEE, NJ. The foundation received its IRS ruling in 1999. The principal officer is William Mack. It holds total assets of $5.9M. Annual income is reported at $3.5M. Total assets have decreased from $8M in 2011 to $5.9M in 2024. The foundation is governed by 4 officers and trustees. The foundation operates in the area of philanthropy & grantmaking. According to its most recent filing, the foundation only makes contributions to preselected charitable organizations. Tax records are available from 2020 to 2024. The foundation primarily funds organizations in New York and Florida. According to available records, William And Phyllis Mack Family Foundation Inc. has made 101 grants totaling $10M, with a median grant of $5K. Annual giving has grown from $4.4M in 2022 to $5.6M in 2023. Individual grants have ranged from $500 to $2M, with an average award of $99K. The foundation has supported 73 unique organizations. The foundation primarily supports organizations in New York, Pennsylvania, Florida, which account for 92% of all grants. Grantmaking reaches organizations across 7 states. Contributions to this foundation are tax-deductible.
William And Phyllis Mack Family Foundation Inc. reported 101 individual grants totaling $10.0 million between 2022 and 2023 across its IRS Form 990-PF filings, with a median grant of $5,000. Half of those grants fell between $1,000 and $30,000. Its largest single grant in the record was $2.0 million. Its most recent available filing, for fiscal year 2023, reports $5.8 million in total giving.
Grantmaking is concentrated in NY, which received 62 of the 101 grants on record (61 percent). In total the foundation's grantees span 7 states. Of its 73 distinct grantees, 38 percent received funding more than once, so repeat relationships are the exception rather than the norm. Its largest institutional recipients were University Of Pennsylvania ($4.0 million), Guggenheim Museum ($1.6 million) and Northwell Health Foundation ($1.5 million).
Computed from 101 individual grant records (2022–2023) in this foundation's IRS Form 990-PF Part XV filings, reaching 7 states. Source: IRS 990-PF.
Smallest Grant
$100
Median Grant
$5K
Average Grant
$123K
Largest Grant
$2M
Based on 35 grants from the most recent 990-PF filing.
No program descriptions are available for this foundation. Many private foundations report program activities in their annual 990-PF filings — check the Tax Filings section below for the most recent filing.
William And Phyllis Mack Family Foundation Inc. primarily funds organizations in the area of philanthropy & grantmaking. Based on available records, the foundation has funded 101 grants. Its grantmaking reaches organizations primarily in NY, PA, FL.
William And Phyllis Mack Family Foundation Inc. has distributed a total of $10M across 101 grants. The median grant size is $5K, with an average of $99K. Individual grants have ranged from $500 to $2M.
William And Phyllis Mack Family Foundation Inc. typically selects its grantees rather than accepting unsolicited proposals.
William And Phyllis Mack Family Foundation Inc. is headquartered in FORT LEE, NJ. While based in NJ, the foundation distributes grants to organizations across 7 states.
| Name | Title | Compensation | Benefits | Total |
|---|---|---|---|---|
| William Mack | TRUSTEE | $0 | $0 | N/A |
| Phyllis Mack | TRUSTEE | $0 | $0 | N/A |
| Richard Mack | TRUSTEE | $0 | $0 | N/A |
| Stephen Mack | TRUSTEE | $0 | $0 | N/A |
Total Giving
N/A
Total Assets
$5.9M
Fair Market Value
N/A
Net Worth
$763K
Grants Paid
N/A
Contributions
N/A
Net Investment Income
N/A
Distribution Amount
N/A
Total Grants
101
Total Giving
$10M
Average Grant
$99K
Median Grant
$5K
Unique Recipients
73
Most Common Grant
$1K
of 2023 grantees were first-time recipients
| Recipient | Location | Amount | Year |
|---|---|---|---|
| University Of PennsylvaniaCHARITY | Philadelphia, PA | $2M | 2023 |
| Guggenheim MuseumCHARITY | New York, NY | $920K | 2023 |
| Northwell Health FoundationCHARITY | New Hyde Park, NY | $783K | 2023 |
| Uja Federation Of New YorkCHARITY | New York, NY | $400K | 2023 |
| United Jewish AppealCHARITY | Greenvale, NY | $400K | 2023 |
| Jewish Federation Of Palm BeachCHARITY | West Palm Beach, FL | $152K | 2023 |
| American Friends Of The Israel MuseumCHARITY | New York, NY | $135K | 2023 |
| Park Avenue SynagogueCHARITY | New York, NY | $111K | 2023 |
| Friends Of The Israel Defense ForcesCHARITY | Brooklyn, NY | $101K | 2023 |
| The Jewish MuseumCHARITY | New York, NY | $83K | 2023 |
| Morselife Foundation IncCHARITY | West Palm Beach, FL | $70K | 2023 |
| 92yCHARITY | New York, NY | $67K | 2023 |
| The New Jewish HomeCHARITY | New York, NY | $50K | 2023 |
| Yeshiva UniversityCHARITY | New York, NY | $50K | 2023 |
| The Wharton FundCHARITY | Philadelphia, PA | $25K | 2023 |
| Bruce And Marsha Moskowitz FoundationCHARITY | West Palm Beach, FL | $25K | 2023 |
| Kravis Center For The Performing ArtsCHARITY | West Palm Beach, FL | $25K | 2023 |
| The Society Of The Four ArtsCHARITY | Palm Beach, FL | $25K | 2023 |
| Town Of Palm Beach United WayCHARITY | Palm Beach, FL | $25K | 2023 |
| United Way Of Palm BeachCHARITY | West Palm Beach, FL | $25K | 2023 |
| Prostate Cancer FoundationCHARITY | Santa Monica, CA | $25K | 2023 |
| Birthright Israel FoundationCHARITY | Boca Raton, FL | $20K | 2023 |
| Lincoln Center For Performing ArtsCHARITY | New York, NY | $13K | 2023 |
| Palm Beach SynagogueCHARITY | Palm Beach, FL | $11K | 2023 |
| Israel Tennis & Education Centers FoundationCHARITY | New York, NY | $10K | 2023 |
| The Milkken InstituteCHARITY | New York, NY | $6K | 2023 |
| Adl NynjCHARITY | New York, NY | $5K | 2023 |
| Albert Einstein College Of MedicineCHARITY | Bronx, NY | $5K | 2023 |
| Alzheimer'S Drug Discovery FoundationCHARITY | New York, NY | $5K | 2023 |
| Katz Women'S HospitalCHARITY | Queens, NY | $5K | 2023 |
| Palm Beach Civic AssociationCHARITY | Palm Beach, FL | $5K | 2023 |
| Palm Beach Country Club FoundationCHARITY | Palm Beach, FL | $5K | 2023 |
| Peconic Land TrustCHARITY | Southhampton, NY | $3K | 2023 |
| Physicians For Human RightsCHARITY | New York, NY | $3K | 2023 |
| Planned ParenthoodCHARITY | Hempstead, NY | $3K | 2023 |
| Center For Creative EducationCHARITY | Kingston, NY | $2K | 2023 |
| Breast Cancer Research FoundationCHARITY | New York, NY | $1K | 2023 |
| Norton Museum Of ArtCHARITY | West Palm Beach, FL | $1K | 2023 |
| Ny Junior Tennis & LearningCHARITY | Long Island City, NY | $1K | 2023 |
| The Broadway Caresequity Fights AidCHARITY | New York, NY | $1K | 2023 |
| Foundation To Combat AntisemitismCHARITY | New York, NY | $1K | 2023 |
| The Leukemia & Lymphoma SocietyCHARITY | Rye Brook, NY | $1K | 2023 |
| FidfCHARITY | New York, NY | $1K | 2023 |
| Dolphins Challenge CancerCHARITY | Miami Gardens, FL | $1K | 2023 |
| Children'S Hospital Los AngelesCHARITY | Los Angeles, CA | $1K | 2023 |
| Juvenile Diabetes Research FoundationCHARITY | Melville, NY | $1K | 2023 |
| HowCHARITY | Tulsa, OK | $750 | 2023 |
| Boca Rio Golf ClubCHARITY | Boca Raton, FL | $500 | 2023 |
| The Michael J Fox FoundationCHARITY | New York, NY | $500 | 2023 |
| The Lustgarten FoundationCHARITY | Woodbury, NY | $500 | 2023 |