· Private foundation
Williamson Foundation for Music
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 you funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year — across FY2017–2025.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2025
- Under $10k47 grants · $125k
- $10k–50k1 grant · $12k
| Recipient | Amount |
|---|---|
| Individual grant recipient | $11,556 |
| FESTIVAL CORDES ET PICS | $7,000 |
| SCOTTISH FIDDLERS OF CALIFORNIA | $7,000 |
| BANG ON A CAN | $4,500 |
| GENERATIONS IN JAZZ FOUNDATION | $3,500 |
| Individual grant recipient | $3,500 |
| ICEBERG NEW MUSIC | $3,500 |
| AT THE WORLDS EDGE MUSIC FOUNDATION INC | $3,500 |
| Individual grant recipient | $3,500 |
| Individual grant recipient | $3,500 |
| Individual grant recipient | $3,500 |
| PALENKE ARTS | $3,500 |
| SEATTLE YOUTH SYMPHONY ORCHESTRAS | $3,500 |
| FONTAINEBLEAU ASSOCIATIONS | $3,500 |
| PEAKS TO PLAINS SUZUKI | $3,500 |
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 US giving — 57% of grant dollars ($610k). The need read here covers only this US portion; the 43% that went abroad ($456k) is mapped below.
Dollar for dollar, your grants (FY17–25) land where the poverty rate runs at 12%, against an area that typically sits at 10%. 70% of your 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
Beyond the US — 43% of all-years giving ($456k)
20 countries, by the recipient’s country on the filing.
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. International giving is mapped by the recipient’s country from the same 990 filings; comparable need data isn’t available at that grain.
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 +54% since the first grant, against +41% for the ones you funded once.
44 repeat relationships — 20 still active in FY2025, 24 since wound down; 28 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, 54% of grant dollars renewed an existing relationship; $63k 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
- BOBANG ON A CAN9× · 2017–2025 · $37k · revenue +54%
- YMYOUTH MUSIC MONTEREY9× · 2017–2025 · $37k · revenue +89%
- GIGENERATIONS IN JAZZ FOUNDATION8× · 2017–2025 · $28k · revenue +44%
Funded once
- IGIndividual grant recipientone grant, 2017 · $24k
- IGIndividual grant recipientone grant, 2019 · $15k
- IGIndividual grant recipientone grant, 2019 · $13k
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.
The only music festival in North America dedicated to Mozart, our mission embraces both performance of highest artistic excellence and cultivation of new potential audience, including young people to assure the future appreciation of great…
To present chamber music concerts in San Jose performed by top ensembles from the Bay Area, across America, and around the world. To enrich our audience experience through post-concert Q&As, program notes, and meet-the-composer…
The Big Sur Fiddle Camp is a 501(c)3 not-for-profit organization and has been in operation for twelve years. Annually, we have run a specialized music program for about 40 youth, 15 music-loving volunteers, and 15 instructors during each…
The American Chamber Ensemble is a consortium of distinguished musicians whose concerts explore the music for piano with strings, woodwinds and/or voice, presenting both great standard repertoire and living American composers.
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…
For reference, the grantee most central to the portfolio’s shape is Youth Music Monterey and the most unlike its peers is Palenke Arts. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
17 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. 17 of the 214 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 BANG ON A CAN ↗
- Who funds YOUTH MUSIC MONTEREY ↗
- Who funds GENERATIONS IN JAZZ FOUNDATION ↗
- Who funds NEW MUSIC ON THE POINT INC ↗
- Who funds International Cello Institute ↗
- Who funds KINHAVEN MUSIC SCHOOL INC ↗
- Who funds YELLOW BARN INC ↗
- Who funds CENTRUM FOUNDATION ↗
- Who funds Palenke Arts ↗
- Who funds SEATTLE YOUTH SYMPHONY ORCHESTRAS ↗
- Who funds Scottish Fiddlers of California ↗
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: National Philanthropic Trust · Vanguard Charitable Endowment Program · American Online Giving Foundation Inc · Donor Advised Charitable Giving Inc · Fidelity Investments Charitable Gift Fund · Amazonsmile Foundation
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 Williamson Foundation for Music 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, a single department, or state — and drag the year to watch it move.
- Kinhaven Music School 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 Williamson Foundation for Music?
Find your warmest path to Williamson Foundation for Music 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.