· 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.
What it funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2025.
Where the money goes
Grants by size, and the largest recipients.
By grant size · FY2025
- Under $10k20 grants · $56k
- $10k–50k8 grants · $90k
- $50k–250k1 grant · $50k
| Recipient | Amount |
|---|---|
| MUSICAL INSTRUMENT MUSEUM | $50,000 |
| MIDORI & FRIENDS | $20,000 |
| PHOENIX CONSERVATORY OF MUSIC | $10,000 |
| GUILD HALL OF EAST HAMPTON | $10,000 |
| PROVIDENCE HOUSE | $10,000 |
| ROSIE'S HOUSE | $10,000 |
| ST FRANCIS HOSPITAL FOUNDATION | $10,000 |
| LEAD GUITAR | $10,000 |
| NORTHWELL HEALTH FOUNDATION | $10,000 |
| PECONIC BAY MEDICAL CENTER | $6,000 |
| UNIVERSITY OF ARIZONA FOUNDATION | $5,000 |
| HARMONY PROJECT PHOENIX | $5,000 |
| THE METROPOLITAN MUSEUM OF ART | $5,000 |
| HONOR HEALTH FOUNDATION | $5,000 |
| Individual grant recipient | $4,500 |
Does the money reach high-need areas?
Each grant placed by the hardship in its grantee’s ZIP, against the area’s typical level.
Its human-services grants (FY17–25, $80k) land where the poverty rate runs at 14%, against an area that typically sits at 11%. 51% of those dollars go to grantees based in above-average-need neighborhoods. Its grants spread fairly evenly across need levels.
How this is measured
Which US states its grants reach
How this is measured
Who it funds again
Organizations funded in more than one year, against those funded once.
53 repeat relationships: 24 still active in FY2025, 29 since wound down; 5 grantees were first funded in FY2025 (too recent to call).
How the two cohorts compare
Organizations
Total granted
Median revenue growth · since first grant
Still filing today
New vs renewed · share of each year
In FY2025, 95% of grant dollars renewed an existing relationship; $10k went to new ones.
Where new relationships form · theme of each grantee’s first grant
How this is measured
Backed again, and grew
- MIMUSICAL INSTRUMENT MUSEUM8× · 2017–2025 · $345k · revenue +84%
- RHRosies House A Music Academy for Children Inc9× · 2017–2025 · $220k · revenue +195%
- PCPOTSDAM COLLEGE FOUNDATION INC4× · 2019–2022 · $100k · revenue +9%
Funded once
- SISOCIAL INSTRUMENT MUSEUMone grant, 2022 · $25k
- AMARIZONA MUSICFEST INCgraduatedone grant, 2017 · $20k · revenue +225%
- MMUSIKFESTone grant, 2017 · $8k
How this is measured
Repeat means funded in two or more distinct years. Growth and survival are read from each grantee’s own subsequent IRS filings.
Closest unfunded matches
The nonprofits that most resemble its grantees but are not funded by it, scored along the direction from the rest of the field toward the portfolio. A resemblance in what they say they do, not a recommendation.
Manhattan school of music is deeply committed to excellence in education, performance, and creative activity; to the humanity of the school's environment; and to the cultural enrichment of the larger community. a premiere international…
The general purpose of the organization is to promote chamber music concerts to the general public.
Kaufman music center stimulates appreciation of and participation in music through music performance and education in ways that awaken creativity, advance innovation, and create a sense of wonder among performers, students, teachers, and…
The music institute of chicago ("music institute") leads people toward a lifelong engagement with music, by providing widely accessible resources for high quality music teaching, performing, and service activities.
Merit School of Music is dedicated to helping young people transform their lives by removing barriers to high-quality music education, with the majority of students benefitting from need-based financial aid, scholarship support, or…
The cleveland institute of music's mission is to empower the world's most talented classical music students to fulfill their dreams and potential.
Our mission is to establish the musical arts as a more essential and valuable experience in the lives of the general public. Our Access to Music program brings classical music to a new broad audience through free concerts events and…
To provide music education to underserved chicago public school students, sparking creativity and passion, teaching critical thinking, supporting academic achievement, and enriching young lives. foundations of music provides free…
The David Hochstein Memorial Music School, Inc. provides people of all ages, backgrounds, and abilities with access to excellent music and dance education in a community that nurtures and encourages personal achievement.
How this is measured
60 grantees tracked through their own filings, 2017–2026.
Each grant beside the grantee’s revenue from every source, year by year.
How this is measured
Counted here: distinct organizations funded across 2017 to 2026, not grant rows in a single year, so this will not match the grant count on the cover. 60 of the 105 grantees resolved in that span have returns of their own we could reconcile.
Each grantee is resolved to its own IRS returns. Association, dated; never a causal claim.
Where the money sits, by cause and then by grantee
Each grantee by its size and the funder’s share of it; top left is load-bearing
Grantee by grantee: a decade per organization, before and after funding
A decade per grantee: revenue shaded, grants as bars, all rows on one timeline.
- Who funds MUSICAL INSTRUMENT MUSEUM ↗
- Who funds THE MIDORI FOUNDATION INC ↗
- Who funds Rosies House A Music Academy for Children Inc ↗
- Who funds POTSDAM COLLEGE FOUNDATION INC ↗
- Who funds PHOENIX CONSERVATORY OF MUSIC ↗
- Who funds METROPOLITAN MUSEUM OF ART ↗
- Who funds University of Arizona Foundation ↗
- Who funds PROVIDENCE HOUSE INC ↗
- Who funds VANDERCOOK COLLEGE OF MUSIC ↗
- Who funds SCO FAMILY OF SERVICES ↗
- Who funds ST FRANCIS HOSPITAL FOUNDATION INC ↗
- Who funds Long Island Alzheimers and Dementia Center Inc ↗
- Who funds ARIZONA MUSICFEST INC ↗
- Who funds GUILD HALL OF EAST HAMPTON INC ↗
- Who funds PROJECT ALS INC ↗
- Who funds LEAD GUITAR ↗
- Who funds NORTHWELL HEALTH FOUNDATION ↗
- Who funds UNITED SOUND INC ↗
- Who funds HARMONY PROJECT PHOENIX ↗
- Who funds OMNI FOUNDATION ↗
- Who funds HONORHEALTH FOUNDATION ↗
- Who funds IMPRINTS OF HONOR ↗
- Who funds Phoenix Children's Hospital Foundation ↗
- Who funds THE PERLMAN MUSIC PROGRAM INC ↗
- Who funds THE SOUTHAMPTON HOSPITAL FOUNDATION INC ↗
- Who funds MEDICAL MUSICIAN INITIATIVE INC ↗
- Who funds Long Island Cares Inc ↗
- Who funds THE MR HOLLAND'S OPUS FOUNDATION ↗
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.
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
How much its grantees rely on government
Each dot is one organization John & Joan D'Addario Foundation Inc funds: left to right is the share of its income from government, bottom to top the share from John & Joan D'Addario Foundation Inc. Bigger dots raise more.
- Boston Music Project Inc: 9% of income from government
How this is measured
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.
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