· Private foundation
D'Addario Foundation Inc
Its FY2024 filing reports that it accepted unsolicited grant applications.
What you funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year — across FY2017–2024.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2024
- Under $10k197 grants · $418k
- $10k–50k5 grants · $100k
| Recipient | Amount |
|---|---|
| NEIGHBORHOOD MUSIC SCHOOL- PUENTE LEARNING CENTER | $20,000 |
| ACCENT PONTIAC | $20,000 |
| THE PEOPLE'S MUSIC SCHOOL | $20,000 |
| NEIGHBORHOOD MUSIC SCHOOL- LAKE CITY SCHOOL DISTRICT | $20,000 |
| NEIGHBORHOOD MUSIC SCHOOL- LONG BEACH UNIFIED SCHOOL DISTRICT | $20,000 |
| BALTIMORE SYMPHONY ORCHESTRA | $5,077 |
| AUSTIN CLASSICAL GUITAR | $4,735 |
| CONSERVATORY LAB CHARTER SCHOOL | $4,725 |
| ALLENTOWN SYMPHONY ASSOCIATION | $4,725 |
| WHARTON INSTITUTE FOR THE PERFORMING ARTS | $4,552 |
| THE PEOPLE'S MUSIC SCHOOL | $4,552 |
| HARMONY PROGRAM | $4,552 |
| SISTEMA TORONTO ACADEMY | $4,464 |
| WHIN MUSIC COMMUNITY CHARTER SCHOOL | $4,352 |
| THE ROOTS OF MUSIC | $4,352 |
Do your dollars go where the need is?
Each grant placed by the hardship in its grantee’s ZIP, then read against the area’s typical level.
Your human-services grants (FY17–24, $35k) land where the poverty rate runs at 11%, against an area that typically sits at 10%. 68% of those dollars go to grantees based in above-average-need neighborhoods. Most of your grants land in higher-need ZIPs.
Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty linein the grantee’s ZIP, averaged from the tracts in that ZIP; grantee ZIP can differ from where services are delivered.
Which US states your grants reach
US grants placed by each grantee’s ZIP, which can differ from where services are actually delivered. Need from public data — U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA — shown as context about the area, never attributed to your giving.
Who you back again
Which organizations you funded more than once, and which you funded a single time. Each grantee is matched to its own filings.
And the relationships you keep tend to grow: grantees you re-up on have seen median revenue of +47% since the first grant, against +34% for the ones you funded once.
334 repeat relationships — 146 still active in FY2024, 188 since wound down; 54 grantees were first funded in FY2024 (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 FY2024, 75% of grant dollars renewed an existing relationship; $131k went to new ones.
Where new relationships form · theme of each grantee’s first grant
First-time = a grantee’s first year in your filing window; renewed = funded in an earlier year too. As a portfolio matures the renewed share naturally climbs — once funded, an org stays “renewable” — so the signal is the years that buck it (a new-grantee intake wave). The earliest year is left-censored: relationships that predate the data read as “new.” Theme is the grantee’s IRS cause.
Backed again, and grew
- THTHE HARMONY PROGRAM INC8× · 2017–2024 · $63k · revenue +94%
- TPThe People's Music School5× · 2017–2024 · $49k · revenue +111%
- HPHarmony Project2× · 2017–2018 · $28k · revenue +88%
Funded once
- NFNational Federation of State High School Associationsgraduatedone grant, 2020 · $15k · revenue +42%
- C4CSULB 49ER FOUNDATION- IMC AWARDone grant, 2023 · $10k
- PMPEOPLES MUSIC SCHOOL-EVANSTON ELone grant, 2018 · $5k
Repeat = funded in two or more distinct years; growth and survival are read from each grantee’s own subsequent IRS filings.
The map has a center of gravity: the average direction from the rest of the sector toward the organizations the foundation funds — the shape of its giving. Scoring every nonprofit along that direction surfaces the ones that look most like the portfolio. These are the closest matchesthat aren’t grantees — a resemblance in what they say they do, not a recommendation.
At MusicMi we set a mission for ourselves to provide aspiring young musicians from across the country with an opportunity to study with world-class artists and to provide our students with a music education of the highest artistic…
String Insiders' mission is to inspire violin, viola, and cello students through online and in-person connections to teachers, peers, and a wealth of information that challenges and encourages them in their growth as a musician and helps…
To initiate and develop musci education programs for Hermosa Beach youth.
Music can transform lives especially for kids growing up in difficult circumstances. Music Instruments N Kids Hands mission is to introduce students to science technology engineering arts and math STEAM through an interactive and digital…
Where Students come to receive a world class education with music at its core.
We give private music lessons and classes to students, especially children, in our area. We then afford these students opportunities to perform in public to share their music with the community, friends, and family. This year we have…
Jeunes Virtuoses de New York" (JVNY) is an ensemble of exceptionally accomplished young musicians who perform on both sides of the Atlantic both as a string camerata, and in various chamber music configurations. Our mission is to transform…
Education in music
To provide comprehensive music education as a critical component of children's integral education, fostering social and emotional skills and inspiring a lifelong love of learning.
The Charleston Academy of Music is committed to providing access to exceptional music education, performance and community outreach to all, regardless of age, skill, gender, ethnicity or income.
For reference, the grantee most central to the portfolio’s shape is Omaha Conservatory of Music and the most unlike its peers is Swan Strings. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
For each theme you fund, this compares how the sector’s money is shifting with how your own giving is shifting.
Sector change and giving change are each shown relative to their own range, growing (right) or shrinking (left); both normalized, so inflation isn’t mistaken for growth.
Your grantees are a median of 20 years old; the field is 16. You back the established end — and your money leans older still.
The field is 22% startups (under 5 years old) — 2% of your grantees by number, and just 2% of your money.
The orgs you fund almost never close — 0.9% lost their exemption, against 13% of the field you don’t fund.
Age = years since IRS exemption (a founding proxy). “Closed” = auto-revocation for 3 years of non-filing — a floor on closure, not proof, and bigger established orgs lapse least. Association, not causation.
422 grantees tracked through their own filings, 2017–2025.
Each one resolved to its own IRS returns and tracked year by year — your grant beside their revenue from every source. Association, dated; never a causal claim.
Counted here: distinct organizations you funded across 2017–2025, not grant rows in a single year — so this will not match the grant count on the cover. 422 of the 703 grantees resolved in that span have returns of their own we could reconcile; the rest are funded organizations whose filings we could not track year by year.
Where your money sits — by cause, then by grantee
Showing your 200 largest grantees by grant value.
Each org by its size and your share of it — top-left is where you’re load-bearing
Go grantee by grantee — a decade per org, and how each moved after you funded them
A decade per grantee — revenue shaded, your grants as bars, all rows on one timeline.
- Who funds THE HARMONY PROGRAM INC ↗
- Who funds The People's Music School ↗
- Who funds ACCENT PONTIAC INC ↗
- Who funds Harmony Project ↗
- Who funds SPHINX ORGANIZATION INC ↗
- Who funds PLAY ON PHILLY ↗
- Who funds INTONATION MUSIC WORKSHOP ↗
- Who funds Capital Harmony Works Inc ↗
- Who funds ELAINE KAUFMAN CULTURAL CENTER LUCY MOSES SCHOOL FOR MUSIC AND DANCE ↗
- Who funds UNITED SOUND INC ↗
- Who funds EMPIRE STATE YOUTH ORCHESTRA INC ↗
- Who funds LATINO ARTS INC ↗
- Who funds PHOENIX CONSERVATORY OF MUSIC ↗
- Who funds AUSTIN CLASSICAL GUITAR SOCIETY ↗
- Who funds Harmony Project Tulsa ↗
- Who funds BALTIMORE SYMPHONY ORCHESTRA INC ↗
- Who funds LEAD GUITAR ↗
- Who funds ELEANOR B RAINEY MEMORIAL INSTITUTE ↗
- Who funds WHIN MUSIC COMMUNITY CHARTER SCHOOL ↗
- Who funds RAVINIA FESTIVAL ASSOCIATION ↗
- Who funds COMMUNITY MUSICWORKS ↗
- Who funds MUSICAMBIA INC ↗
- Who funds SOUNDSCAPES INC ↗
- Who funds CLEVELAND CLASSICAL GUITAR SOCIETY ↗
- Who funds MAKE MUSIC NOLA ↗
- Who funds Enriching Lives Through Music ↗
- Who funds HISPANIC ALLIANCE FOR THE PERFORMING ARTS ↗
- Who funds INTERNAL CREATIONS INC ↗
- Who funds ROCK TO THE FUTURE INC ↗
- Who funds EAST LAKE EXPRESSION ENGINE ↗
- Who funds INTEMPO ORGANIZATION INC ↗
- Who funds MERIT SCHOOL OF MUSIC ↗
- Who funds WEST POINT FELLOWSHIP INC DBA WEST POINT SCHOOL OF MUSIC ↗
- Who funds THE BROOKLYN STEPPERS INC ↗
The grantmakers whose grantees overlap with yours far more than size alone predicts. Each orbits closer the stronger the alignment; the arcs between them show where they also fund each other. Here it reads as a tightly interlocked camp — most of these funders back each other's grantees too.
Open a dossier: The Lewis Prize Foundation Inc · Find Your Light Foundation · The Carnegie Hall Corporation · The Cma Foundation · Les Paul Foundation · The Mockingbird Foundation · Frank and Lydia Bergen Foundation · Los Angeles Philharmonic Association · Sheila Fortune Foundation Inc · American Symphony Orchestra League D/B/A League of American Orchestras · The Presser Foundation · Cornelia T Bailey Charitable Trust
Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. A research starting point: overlap is association, not proof of shared intent.
Government reliance of your grantees
Every dot is one organization D'Addario Foundation Inc funds. Left–right is the share of its income from government; up–down is the share from you. Bigger dots raise more. Filter to federal or a single department — and drag the year to watch it move.
- 18 Degrees Inc — 60% of income from government
- Jazz House Kids Inc — 29% of income from government
- Catamount Film & Arts Company — 27% of income from government
- Music Haven Inc — 15% of income from government
- Project Music Inc — 14% of income from government
- Baltimore Symphony Orchestra Inc — 11% of income from government
- My Voice Music Inc — 11% of income from government
- Boston Music Project Inc — 9% of income from government
- Union City Music Project Inc — 8% of income from government
- Musiconnects Inc — 5% of income from government
- Worcester Chamber Music Society Inc — 5% of income from government
- Zumix Inc — 5% of income from government
- Neighborhood Music School Inc — 4% of income from government
- Boston String Academy Inc — 3% of income from government
- Intempo Organization Inc — 2% of income from government
- Miami Music Project Inc — 2% of income from government
- El Sistema Oklahoma Inc — 2% of income from government
- Conservatory Lab Foundation Inc — 1% of income from government
- Boston Youth Symphony Orchestras Inc — 1% of income from government
- Guitars Over Guns Organization Inc — 1% of income from government
- Young Musicians Unite Inc — 0% of income from government
Government income is each org’s traced federal awards (USASpending — grants and contracts) plus state payments (open checkbooks) as a share of its total revenue (IRS Form 990); the self-reported government-grant line (990 line 1e) is carried for cross-check: a grantee that reports government grants we could not trace to a source is left off the chart rather than shown as receiving none. An association, not a claim that your grant caused the public funding. Coverage is precision-first — a floor, not a census; state records exist for 9 states, so a grantee outside them shows no state figure (dimmed) rather than a false zero. Federal award amounts are obligations, which can span years, so a single-year share is indicative. 990 filings lag 12–24 months.
Warm introductions · Powered by PlinthPlus
How do I get to D'Addario Foundation Inc?
Find your warmest path to 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.