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New Jersey · Private foundation

The William & Phyllis Mack Family Foundation Inc

Its FY2024 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.

$3.2M
Granted FY2024(still arriving)
53
Grants FY2024
52
Organizations funded FY2023
38%
First-time grantees FY2023
Read the full brief
Median grant, FY2024
$6,867
Largest grant, FY2024
$820,000
Organizations funded a year
33 to 52
FY2020 to FY2023
States reached, FY2024
7
Total assets, FY2024
$5.9M
Applications
Preselected organizations only
Per its most recent filing; check its own site

How open it is to new grantees

In FY2023, 38% of the organizations The William & Phyllis Mack Family Foundation Inc funded were first-time grantees, receiving 14% of its grant dollars.

New vs renewed · share of each year

In FY2023, 86% of grant dollars renewed an existing relationship; $501k went to new ones.

50%100%’21’22’23
RenewedFirst-time

Where new relationships form · theme of each grantee’s first grant

’21’22’23
EducationHealthPhilanthropyArts & CultureInternationalEnvironmentOther
How this is measured
First-time means a grantee’s first year in the filing window; renewed means funded in an earlier year too. The renewed share climbs naturally as a portfolio matures, so the signal is a year that bucks it (a wave of new grantees). The earliest year is left-censored: relationships that predate the data read as new. Theme is the grantee’s IRS cause.
The numbers by year
Fiscal yearOrganizations fundedTo those organizationsFirst-time grantees
FY2024still arriving51$3.1M33%
FY202352$3.5M38%
FY202244$2.3M52%
FY202133$2.3M45%
FY202034$2.1Mn/a
95% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2020 to 2024.

Education$7.2MArts & Culture$6.0MHealth$3.6MPhilanthropy$1.9MReligion$942kHuman Services$434kInternational$260kHousing & Shelter$150kOther$0

Where its grants go

Grant dollars by states, across the years we hold.

Which US states its grants reach

MI
NY
MA
IN
PA
NJ
CT
CA
DC
OK
FL

Top grantees

Largest recipients by total granted, FY2020 to FY2024, and the share of each one’s budget the grants supplied at peak.

Show all 73 grantees
All grantees of The William & Phyllis Mack Family Foundation Inc by total granted
GranteeTotal grantedYearsShare of their budget
Northwell Health Foundation$3,284,75051%
Park Avenue Synagogue Inc$906,2115n/a
United Jewish Appeal-Federation of Jewish Philanthropies of New York Inc$706,00030%
American Friends of the Israel Museum$435,00051%
The Jewish Museum$431,50051%
Yeshiva University$150,00030%
Town of Palm Beach United Way Inc$145,00051%
Morselife Foundation Inc$142,00041%
Raymond F Kravis Center for the Performing Arts Inc$125,00020%
Bruce and Marsha Moskowitz Foundation Inc$125,00058%
Friends of the Israel Defense Forces$107,50030%
Birthright Israel Foundation$100,00040%
The Society of the Four Arts Inc$97,00050%
Norton Museum of Art Inc$57,50040%
Target Als Foundation Inc$50,00010%
Israel Tennis Centers Foundation Inc$39,50050%
Connecticut Public Broadcasting Inc$35,00020%
Gift of Life Marrow Registry Inc$26,00020%
Brooklyn Tech Alumni Foundation Inc$25,00011%
Mecox Bay Conservancy Inc$25,00012%
Prostate Cancer Foundation$25,00010%
Palm Beach Orthodox Synagogue Inc$21,0002n/a
Palm Beach Civic Association Inc$20,00040%
Palm Beach Country Club Foundation Inc$14,80641%
American Friends of Hebrew University Inc$14,30030%
New York Restoration Project$12,50010%
Leo Baeck Institute Inc$12,00010%
Peconic Land Trust Inc$10,50040%
Lupus Research Alliance Inc$10,00030%
Alzheimer's Drug Discovery Foundation$8,00020%
Museum of Modern Art$6,00010%
Icahn School of Medicine at Mount Sinai$5,00010%
Museum of American Finance$5,00010%
Federal Enforcement Homeland Security Foundation$5,00011%
De la Salle Academy$5,0001n/a
Mass General Brigham Incorporated$5,0001n/a
Solomon Institute Inc$5,00011%
Mother a M E Zion Church$5,0001n/a
Physicians for Human Rights Inc$5,00020%
Delivering Good Inc$5,00010%
La Salle Academy$5,0001n/a
Prep for Prep$5,00010%
American Friends of Magen David Adom$3,60010%
Museum of Jewish Heritage a Living Memorial to the Holocaust$3,00020%
Center for Creative Education Inc$3,00020%
Promise Fund of Florida Inc$2,50010%
Marc Lustgarten Pancreatic Cancer Foundation$2,50050%
The United States Holocaust Memorial Museum$2,50010%
The Philharmonic Symphony Society of Ny Inc$2,50010%
The Breast Cancer Research Foundation Inc$1,85020%
Chabad at Lehigh Inc$1,8001n/a
Fifth Avenue Synagogue$1,8001n/a
The Michael J Fox Foundation for Parkinson's Research$1,75020%
Atlantic Golf Club Educational Fund Inc$1,75011%
The Oxalosis & Hyperoxaluria Foundation$1,50020%
Boca Rio Golf Club Inc$1,25030%
Blood Cancer United Inc$1,20020%
New York Historical Society$1,00010%
Breakthrough T1d$1,00010%
Cura Foundation$1,00010%
Central Park Conservancy Inc$1,00010%
Children's Hospital Los Angeles$1,00010%
Henry Street Settlement$1,00010%
Usta Midwest Tennis & Education Foundation Inc$1,00010%
Broadway Caresequity Fights AIDS Inc$1,00010%
Rising Treetops at Oakhurst$50010%
Friends of Jcc Krakow Inc$50010%
Israel Healthcare Foundation Inc$50010%
Guild Hall of East Hampton Inc$50010%
Dana-Farber Cancer Institute Inc$50010%
Alliance for Cancer Gene Therapy Inc$35010%
Big Brothers Big Sisters of Long Island Inc$10010%
East 62nd Street Association Inc$10010%

What it could do for these grantees

Plus 36 recipients with no EIN on record ($6.0M), not named here.

Where it is load-bearing

Each grantee by its size and the share of its budget The William & Phyllis Mack Family Foundation Inc supplied at peak.

25%50%75%100%$100k$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetNorthwell Health Foundation: $3,284,750 over 5y, 0.6% of budgetUnited Jewish Appeal-Federation of Jewish Philanthropies of New York Inc: $706,000 over 3y, 0.1% of budgetAmerican Friends of the Israel Museum: $435,000 over 5y, 1.0% of budgetThe Jewish Museum: $431,500 over 5y, 0.7% of budgetYeshiva University: $150,000 over 3y, 0.0% of budgetTown of Palm Beach United Way Inc: $145,000 over 5y, 0.9% of budgetMorselife Foundation Inc: $142,000 over 4y, 0.9% of budgetRaymond F Kravis Center for the Performing Arts Inc: $125,000 over 2y, 0.2% of budgetBruce and Marsha Moskowitz Foundation Inc: $125,000 over 5y, 8.1% of budgetFriends of the Israel Defense Forces: $107,500 over 3y, 0.0% of budgetBirthright Israel Foundation: $100,000 over 4y, 0.1% of budgetThe Society of the Four Arts Inc: $97,000 over 5y, 0.2% of budgetNorton Museum of Art Inc: $57,500 over 4y, 0.1% of budgetTarget Als Foundation Inc: $50,000 over 1y, 0.1% of budgetIsrael Tennis Centers Foundation Inc: $39,500 over 5y, 0.2% of budgetConnecticut Public Broadcasting Inc: $35,000 over 2y, 0.1% of budgetGift of Life Marrow Registry Inc: $26,000 over 2y, 0.1% of budgetBrooklyn Tech Alumni Foundation Inc: $25,000 over 1y, 1.0% of budgetMecox Bay Conservancy Inc: $25,000 over 1y, 1.7% of budgetProstate Cancer Foundation: $25,000 over 1y, 0.0% of budgetPalm Beach Civic Association Inc: $20,000 over 4y, 0.3% of budgetPalm Beach Country Club Foundation Inc: $14,806 over 4y, 0.7% of budgetAmerican Friends of Hebrew University Inc: $14,300 over 3y, 0.0% of budgetNew York Restoration Project: $12,500 over 1y, 0.2% of budgetLeo Baeck Institute Inc: $12,000 over 1y, 0.1% of budgetPeconic Land Trust Inc: $10,500 over 4y, 0.0% of budgetLupus Research Alliance Inc: $10,000 over 3y, 0.0% of budgetAlzheimer's Drug Discovery Foundation: $8,000 over 2y, 0.0% of budgetMuseum of Modern Art: $6,000 over 1y, 0.0% of budgetIcahn School of Medicine at Mount Sinai: $5,000 over 1y, 0.0% of budgetMuseum of American Finance: $5,000 over 1y, 0.3% of budgetFederal Enforcement Homeland Security Foundation: $5,000 over 1y, 1.0% of budgetSolomon Institute Inc: $5,000 over 1y, 0.7% of budgetPhysicians for Human Rights Inc: $5,000 over 2y, 0.0% of budgetDelivering Good Inc: $5,000 over 1y, 0.0% of budgetPrep for Prep: $5,000 over 1y, 0.1% of budgetAmerican Friends of Magen David Adom: $3,600 over 1y, 0.0% of budgetMuseum of Jewish Heritage a Living Memorial to the Holocaust: $3,000 over 2y, 0.0% of budgetCenter for Creative Education Inc: $3,000 over 2y, 0.2% of budgetPromise Fund of Florida Inc: $2,500 over 1y, 0.1% of budgetMarc Lustgarten Pancreatic Cancer Foundation: $2,500 over 5y, 0.0% of budgetThe United States Holocaust Memorial Museum: $2,500 over 1y, 0.0% of budgetThe Philharmonic Symphony Society of Ny Inc: $2,500 over 1y, 0.0% of budgetThe Breast Cancer Research Foundation Inc: $1,850 over 2y, 0.0% of budgetThe Michael J Fox Foundation for Parkinson's Research: $1,750 over 2y, 0.0% of budgetAtlantic Golf Club Educational Fund Inc: $1,750 over 1y, 0.5% of budgetThe Oxalosis & Hyperoxaluria Foundation: $1,500 over 2y, 0.1% of budgetBoca Rio Golf Club Inc: $1,250 over 3y, 0.0% of budget

Tap a dot to name the grantee.

How this is measured
Share of budget is the funder’s grant in a year over the grantee’s total revenue that year, at its highest across the years we hold; revenue is from all sources. Only grantees confirmed against their own filings, whose grants do not exceed their revenue, are plotted: the largest 65.

Nonprofits that may fit its grantmaking

Co-funders

Grantmakers whose grantees overlap with this funder’s far more than size alone predicts. Closer means stronger alignment; arcs show where they also fund each other. Here they form a tightly interlocked group: most of these funders back each other's grantees too.

Jewish Communal FundNY27.3× affinity16 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Jewish Communal Fund · The Goldman Sachs Charitable Gift Fund · Fjc · The New York Community Trust · National Philanthropic Trust · The Ayco Charitable Foundation · Jpmorgan Chase Foundation · Gs Donor Advised Philanthropy Fund for Wealth Management Inc · Morgan Stanley Global Impact Funding Trust Inc · The Bank of America Charitable Foundation Inc · Donor Advised Charitable Giving Inc · American Endowment Foundation

How this is measured
Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. Overlap is association, not proof of shared intent.

Compare The William & Phyllis Mack Family Foundation Inc with peer funders

About The William & Phyllis Mack Family Foundation Inc

How much does The William & Phyllis Mack Family Foundation Inc give?
The William & Phyllis Mack Family Foundation Inc reported 53 grants totaling $3,213,882 in its FY2024 IRS filing. It funded between 33 and 52 organizations a year over FY2020 to FY2023.
What does The William & Phyllis Mack Family Foundation Inc fund?
By grant dollars over FY2020 to FY2024, its largest causes are Education (35%), Arts & Culture (29%), Health (17%).
Who are The William & Phyllis Mack Family Foundation Inc's largest grantees?
By total granted over FY2020 to FY2024: Northwell Health Foundation ($3.3M), Park Avenue Synagogue Inc ($906k), United Jewish Appeal-Federation of Jewish Philanthropies of New York Inc ($706k).
Does The William & Phyllis Mack Family Foundation Inc fund new organizations?
In FY2023, 38% of the organizations it funded were first-time grantees.
Does The William & Phyllis Mack Family Foundation Inc accept unsolicited applications?
Its most recent filing reports that it funds preselected organizations and does not take unsolicited requests. Check the foundation's own site before ruling it out.
Which funders back the same organizations as The William & Phyllis Mack Family Foundation Inc?
Its strongest co-funders, measured against what their size predicts, include Jewish Communal Fund, The Goldman Sachs Charitable Gift Fund, Fjc.
Where is The William & Phyllis Mack Family Foundation Inc based?
The William & Phyllis Mack Family Foundation Inc is based in NJ.

On method. Every financial figure here is read from IRS e-file XML, the funder’s own 990/990-PF, and from the multi-year returns of the 112 grantees we resolved, each linked to its source. Grantee outcomes are each organization’s own program-service reporting (Form 990, Part III), read as association with funding, never as caused by it. Low-confidence name matches are suppressed rather than guessed. How we build these →

How this is measured
Each figure carries one of six labels. Filed is what the funder reported on its return. Official is another government record about an organization, such as a federal award or a charity register, joined by name where no shared identifier exists. Resolved is an identity we worked out where the filing named a recipient without an EIN, kept only above a measured confidence threshold. Computed is arithmetic over those, like themes, portfolio clusters and co-funder strength. Context is a statistic about a place rather than about an organization, which is what the need overlay is: it describes the area a grantee’s address sits in, not where its work lands. Inferred is drawn by a model from text, like the partnerships read out of public news and organization websites. Each is labeled where it appears.

Generated from the IRS Form 990-PF e-file return for fiscal year 2024, released 2024. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

Source object · view filing

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