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New York · Private foundation

John & Joan D'Addario Foundation Inc

Its FY2025 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.

$196k
Granted FY2025(still arriving)
29
Grants FY2025
34
Organizations funded FY2024
29%
First-time grantees FY2024
Read the full brief
Median grant, FY2025
$4,500
Largest grant, FY2025
$50,000
Organizations funded a year
21 to 36
FY2018 to FY2024
States reached, FY2025
4
Total assets, FY2025
$1.9M
Applications
Preselected organizations only
Per its most recent filing; check its own site

How open it is to new grantees

In FY2024, 29% of the organizations John & Joan D'Addario Foundation Inc funded were first-time grantees, receiving 10% of its grant dollars.

New vs renewed · share of each year

In FY2024, 90% of grant dollars renewed an existing relationship; $19k went to new ones.

50%100%’18’19’20’21’22’23’24
RenewedFirst-time

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

’18’19’20’21’22’23’24
Arts & CultureHealthEducationHuman ServicesPhilanthropyFood & NutritionOther
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
FY2025still arriving29$196k17%
FY202434$187k29%
FY202327$174k19%
FY202233$243k45%
FY202126$191k27%
FY202021$122k29%
FY201925$221k32%
FY201836$191k36%
100% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2025.

Arts & Culture$986kHousing & Shelter$220kEducation$155kHealth$144kHuman Services$95kPhilanthropy$67kReligion$18kCommunity Improvement$10kOther$0

Where its grants go

Grant dollars by states, across the years we hold.

Which US states its grants reach

IL
WI
MI
NY
MA
IN
PA
NJ
RI
CA
CO
MO
AZ
AR
TN
SC
DC
GA

Top grantees

Largest recipients by total granted, FY2017 to FY2025, and the share of each one’s budget the grants supplied at peak.

Show all 64 grantees
All grantees of John & Joan D'Addario Foundation Inc by total granted
GranteeTotal grantedYearsShare of their budget
Musical Instrument Museum$345,00080%
The Midori Foundation Inc$330,00093%
Rosies House A Music Academy for Children Inc$219,50093%
Potsdam College Foundation Inc$100,00041%
Phoenix Conservatory of Music$51,00081%
Metropolitan Museum of Art$46,50090%
University of Arizona Foundation$36,50070%
Providence House Inc$35,50060%
Vandercook College of Music$33,50050%
Sco Family of Services$31,00060%
St Francis Hospital Foundation Inc$30,00030%
Long Island Alzheimers and Dementia Center Inc$24,00080%
Arizona Musicfest Inc$20,0001n/a
Guild Hall of East Hampton Inc$20,00020%
Project Als Inc$17,50060%
Lead Guitar$17,50061%
Care Inc$15,0005n/a
Northwell Health Foundation$15,00030%
United Sound Inc$13,50061%
Harmony Project Phoenix$13,00042%
Omni Foundation$11,00038%
Honorhealth Foundation$10,50040%
Imprints of Honor$9,00090%
Phoenix Children's Hospital Foundation$8,50030%
The Perlman Music Program Inc$8,00020%
The Southampton Hospital Foundation Inc$7,00060%
Medical Musician Initiative Inc$6,73032%
Long Island Cares Inc$5,50030%
Dick Wagner Remember the Child Memorial Fund$5,0002n/a
The Mr Holland's Opus Foundation$4,50020%
Foothills Caring Corps Inc$4,00041%
Glen Cove Boys & Girls Club at Lincoln House Inc$3,0001n/a
Brian Kennedy Foundation Inc$3,0003n/a
St Louis Classical Guitar$3,00011%
The Harmony Program Inc$2,50010%
Boston Music Project Inc$2,50010%
Foothills Community Foundation Inc$2,5001n/a
Musically Fed$2,50011%
South Shore Child Guidance Association Inc$2,50010%
Dan Murphy Foundation$2,00020%
Phoenix Guitar Society$2,0002n/a
Jazz in Arizona Inc$2,00020%
Luzerne Music Center Inc$2,00020%
The Parrish Art Museum Inc$2,00020%
The Viscardi Center Inc$1,5001n/a
Hospice of the Valley$1,25020%
Elevate Phoenix$1,10010%
Jazz Foundation of America Inc$1,00010%
Solid Rock Foundation$1,0001n/a
Marin Community Music School$1,0001n/a
Broadway Hearts Inc$1,00012%
Marc Lustgarten Pancreatic Cancer Foundation$1,0001n/a
Desert Mountain Foundation$1,0001n/a
Opus 118 Harlem School of Music$1,00010%
Peconic Hockey Foundation Inc$1,00010%
Huntington Arts Council Inc$1,00010%
The Music Academy Foundation Inc$1,00011%
Barenboim-Said Foundation (Usa)$1,00010%
American Cancer Society Inc$75020%
Daryls Music Makers$7001n/a
Grand Rapids Symphony Society$50010%
Scoa Inc$50010%
The Chronicle of Philanthropy$42630%
Rogers Memorial Library Foundation$2001n/a

What it could do for these grantees

Plus 40 recipients with no EIN on record ($174k), not named here.

Where it is load-bearing

Each grantee by its size and the share of its budget John & Joan D'Addario Foundation Inc supplied at peak.

25%50%75%100%$100k$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetMusical Instrument Museum: $345,000 over 8y, 0.3% of budgetThe Midori Foundation Inc: $330,000 over 9y, 3.0% of budgetRosies House A Music Academy for Children Inc: $219,500 over 9y, 2.5% of budgetPotsdam College Foundation Inc: $100,000 over 4y, 0.5% of budgetPhoenix Conservatory of Music: $51,000 over 8y, 1.2% of budgetMetropolitan Museum of Art: $46,500 over 9y, 0.0% of budgetUniversity of Arizona Foundation: $36,500 over 7y, 0.0% of budgetProvidence House Inc: $35,500 over 6y, 0.1% of budgetVandercook College of Music: $33,500 over 5y, 0.2% of budgetSco Family of Services: $31,000 over 6y, 0.0% of budgetSt Francis Hospital Foundation Inc: $30,000 over 3y, 0.0% of budgetLong Island Alzheimers and Dementia Center Inc: $24,000 over 8y, 0.2% of budgetGuild Hall of East Hampton Inc: $20,000 over 2y, 0.1% of budgetProject Als Inc: $17,500 over 6y, 0.1% of budgetLead Guitar: $17,500 over 6y, 1.2% of budgetNorthwell Health Foundation: $15,000 over 3y, 0.0% of budgetUnited Sound Inc: $13,500 over 6y, 0.8% of budgetHarmony Project Phoenix: $13,000 over 4y, 1.8% of budgetOmni Foundation: $11,000 over 3y, 8.0% of budgetHonorhealth Foundation: $10,500 over 4y, 0.0% of budgetImprints of Honor: $9,000 over 9y, 0.3% of budgetPhoenix Children's Hospital Foundation: $8,500 over 3y, 0.0% of budgetThe Perlman Music Program Inc: $8,000 over 2y, 0.1% of budgetThe Southampton Hospital Foundation Inc: $7,000 over 6y, 0.0% of budgetMedical Musician Initiative Inc: $6,730 over 3y, 1.9% of budgetLong Island Cares Inc: $5,500 over 3y, 0.0% of budgetThe Mr Holland's Opus Foundation: $4,500 over 2y, 0.1% of budgetFoothills Caring Corps Inc: $4,000 over 4y, 0.6% of budgetSt Louis Classical Guitar: $3,000 over 1y, 1.0% of budgetThe Harmony Program Inc: $2,500 over 1y, 0.2% of budgetBoston Music Project Inc: $2,500 over 1y, 0.1% of budgetMusically Fed: $2,500 over 1y, 1.0% of budgetSouth Shore Child Guidance Association Inc: $2,500 over 1y, 0.0% of budgetDan Murphy Foundation: $2,000 over 2y, 0.1% of budgetJazz in Arizona Inc: $2,000 over 2y, 0.1% of budgetLuzerne Music Center Inc: $2,000 over 2y, 0.1% of budgetThe Parrish Art Museum Inc: $2,000 over 2y, 0.0% of budgetHospice of the Valley: $1,250 over 2y, 0.0% of budgetElevate Phoenix: $1,100 over 1y, 0.1% of budgetJazz Foundation of America Inc: $1,000 over 1y, 0.0% of budgetBroadway Hearts Inc: $1,000 over 1y, 1.9% of budgetOpus 118 Harlem School of Music: $1,000 over 1y, 0.3% of budgetPeconic Hockey Foundation Inc: $1,000 over 1y, 0.1% of budgetHuntington Arts Council Inc: $1,000 over 1y, 0.1% of budgetThe Music Academy Foundation Inc: $1,000 over 1y, 0.7% of budgetBarenboim-Said Foundation (Usa): $1,000 over 1y, 0.5% of budgetAmerican Cancer Society Inc: $750 over 2y, 0.0% of budgetGrand Rapids Symphony Society: $500 over 1y, 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 50.

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.

D'Addario Foundation IncNY29.4× affinity12 shared granteesties to 8 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: D'Addario Foundation Inc · Arizona Community Foundation · Thunderbirds Charities · Virginia G Piper Charitable Trust · The New York Community Trust · James & Janet Daddario Family Foundation Inc · The William and Joanne Moeller Foundation · Scottsdale Arts · American Express Foundation · Lostritto Family Foundation · The Cma Foundation · Jewish Community Foundation of Greater Phoenix

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 John & Joan D'Addario Foundation Inc with peer funders

Warm introductions · Powered by PlinthPlus

How do I get to John & Joan D'Addario Foundation Inc?

Find your warmest path to John & Joan D'Addario Foundation Inc through trustees and officers whose names appear on both boards. Search for your organization and Plinth traces the shortest route it can evidence.

Each link is a name appearing on two organizations’ public IRS 990 filings, matched on that name and, where the filings support it, on location. A same-state match has geographic support, which is a second matching feature rather than confirmation that the two are one person; a cross-state one is the likeliest to be two people who share a name. Every hop shows its tier, low-confidence and distant paths are held back rather than guessed, and it is worth confirming the person before you use the introduction.

About John & Joan D'Addario Foundation Inc

How much does John & Joan D'Addario Foundation Inc give?
John & Joan D'Addario Foundation Inc reported 29 grants totaling $196,000 in its FY2025 IRS filing. It funded between 21 and 36 organizations a year over FY2018 to FY2024.
What does John & Joan D'Addario Foundation Inc fund?
By grant dollars over FY2017 to FY2025, its largest causes are Arts & Culture (57%), Housing & Shelter (13%), Education (9%).
Who are John & Joan D'Addario Foundation Inc's largest grantees?
By total granted over FY2017 to FY2025: Musical Instrument Museum ($345k), The Midori Foundation Inc ($330k), Rosies House A Music Academy for Children Inc ($220k).
Does John & Joan D'Addario Foundation Inc fund new organizations?
In FY2024, 29% of the organizations it funded were first-time grantees.
Does John & Joan D'Addario 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 John & Joan D'Addario Foundation Inc?
Its strongest co-funders, measured against what their size predicts, include D'Addario Foundation Inc, Arizona Community Foundation, Thunderbirds Charities.
Where is John & Joan D'Addario Foundation Inc based?
John & Joan D'Addario Foundation Inc is based in NY.

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 105 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 2025, released 2025. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

Source object · view filing

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