Pennsylvania · Nonprofit
Marlboro School of Music Inc
Marlboro School of Music Inc (Pennsylvania) receives grants from 35 organizations whose IRS filings report $11,682,197 to it, the largest being DUNARD FUND USA LTD ($8,800,000). 24 of them have funded it in more than one year.
- Revenue FY2025
- $3.7M
- Funders on record
- 35
- Grants received
- $12M
- Net assets
- $115M
What Marlboro School of Music Inc does
Mission
To inspire new generations of musical leaders by enabling artists of diverse ages, nationalities and perspectives to form a nuturing closely knit community devoted to the intensive exploration of chamber music.
As stated on its FY2025 Form 990.
Programs
To create a summer study program and community in southeastern Vermont in which 90 diverse musicians share insights and ideas in intensive daily rehearsals, and live with one another, and with staff members, spouses and children for seven weeks.
$2,350,058 spent$299,581 earned by the program57% of program spendingTo present weekend concerts to audiences of approximately 6,000 per season, featuring exceptional performances of works that emanate from our intensive summer study program, and which introduce young emerging musical leaders, and rarely-heard and new compositions of special merit.
$1,385,783 spent$176,657 earned by the program34% of program spendingTo present several series of touring ensembles in major east coast cities, and single concerts in other communities, that bring exciting performances from our summer training program in Vermont to broader audiences who would not otherwise be able to experience them.
$352,741 spent$44,967 earned by the program9% of program spending
The 3 programs described on its FY2024 Form 990, listed largest first by expense. Program spending in total: $4,088,582.
The organization over time
Each line starts at 100 in 2017, so what you read is the shape rather than the size: 150 means half as much again as 2017, 50 means half. The number beside each label in the key is where it ended. The shaded band is where the middle 50% of its peers' revenue would sit, given their growth.
Balance sheet
Total assets and total liabilities at each year end, in dollars. The largest one-year move in total assets was 2023 to 2024, from $96M to $109M (+14%).
How it's funded, over time
Each bar is one year's revenue split into where it came from, and every bar is the same height — these are shares, not amounts, so a year that raised twice as much looks the same size. Hover a bar for the split.
Government-grant reliance: 2017 0% · 2018 1% · 2019 1% · 2020 0% · 2021 2% · 2022 3% · 2023 0% · 2024 1%. Grants only. Government contracts and fees sit inside program revenue.
38% of Marlboro School of Music Inc’s revenue is contributions — about as donation-reliant as the typical peer (63% for the typical peer).
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 2 of the last 9 reported years ran a deficit.
reserve
Leadership and staff
The officers, directors, trustees and key employees listed on each return. Joined and no longer listed compare each filing with the year before, matching people by surname and first initial; a year after a gap, or a roster under three people, has no comparison.
Board chair
Christopher Serkin
President & Chairman
As listed on its FY2025 Form 990.
Who funds it, year by year
2017 → 2023: the base broadened from 7 funders to 17 funders, grant income rose $51k → $1.5M.
11 of 35 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 14% of grant dollars received. That money is really individual donors directing a sponsor; the institutions to cultivate are the non-DAF funders.
From the IRS filings of Marlboro School of Music Inc’s funders (the co-funder graph). Top 30 of 35 funders by total. Association, not causation. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
How concentrated its funding is
Marlboro School of Music Inc leans on a few funders — its largest provides 75% of grant income and the top three 86%; half comes from just 1 funder.
the vertical line marks half of all grant income — 1 funder to its left
Largest funder’s share by year: 2017 29% · 2018 51% · 2019 90% · 2020 85% · 2021 83% · 2022 77% · 2023 67% — growing more concentrated.
“Effective funders” = inverse Herfindahl index (1 / Σ shareᵢ²) — the number of equal-sized funders that would give the same concentration. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
How long its funders stay
52% of Marlboro School of Music Inc's funders are still giving 3 years after their first grant; 69% give in more than one year at all.
Share of funders still giving k years after their first recorded grant, pooled across every acquisition cohort. A funder counts as retained in a year only if it made a grant that year. Measured to FY2023, the last fiscal year that has finished arriving — a funder cannot be counted as lapsed in a year most filers have not reached.
Where its funders are
Marlboro School of Music Inc draws 100% of its grant income from funders outside Pennsylvania, across 11 states in all.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. $1.6M arriving through sponsors registered in 7 states is excluded from the map and the split above: a sponsor holds money on a donor’s behalf, so its registered address would place those dollars somewhere no donor need ever have been. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
Against its field
Marlboro School of Music Inc's funding base is broadening — from 7 funders to 17 as grant income climbed.
this organization peer median middle 50% of peers· 3,230 arts & culture nonprofits $1M–$10M, FY2025
Government funding Marlboro School of Music Inc receives
Grants and contracts to this organization from federal (USASpending) and state checkbooks, reconciled to its EIN. $250k on record.
- National Endowment for the Arts$250k
Federal grants vs contracts are distinguished; state line items keep their reported category. Matched by name + geography (the BMF), so coverage is partial and precision-first.
Organizations like Marlboro School of Music Inc
Organizations whose mission and program text most resemble this one, by semantic similarity over every organization in the US filings — the closest peers, and often the clearest route to shared or prospective funders.
In Pennsylvania
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Where the money goes
84% of spending goes to programs.
Governance
Public support
51%
Share of support from the public (Schedule A) — the basis for its public-charity status.
Footprint & structure
Files a return copy in 1 state
Part of a family of 2 related entities
- Francesco Von Mendelssohn Fund Inc · exempt
- Potash Hill Inc · exempt
Screen this organization
A dated, signed PDF of the compliance screen for Marlboro School of Music Inc: IRS status (Business Master File, Publication 78, auto-revocation), the OFAC sanctions lists, the Internal Revenue Bulletin, and California registration, with the Rev. Proc. 2018-32 §8.01 reliance elements stated element by element. Generated from the current files at the moment you download it.
Screens are triage, not determinations; a source that cannot be read reports not screened, never clear. Screen this nonprofit · How the screen works · on the API as GET /api/screening/{ein}?format=pdf
Questions and answers
- Who funds Marlboro School of Music Inc?
- Marlboro School of Music Inc (Pennsylvania) receives grants from 35 organizations whose IRS filings report $11,682,197 to it, the largest being DUNARD FUND USA LTD ($8,800,000). 24 of them have funded it in more than one year.
- How many funders does Marlboro School of Music Inc have?
- IRS filings report 35 organizations giving $11,682,197 in grants to Marlboro School of Music Inc, 24 of which have funded it in more than one year.
- Who is the largest funder of Marlboro School of Music Inc?
- DUNARD FUND USA LTD is the largest funder on record, with $8,800,000 in grants. The full list of funders is on this page.
- How can an organization like Marlboro School of Music Inc find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in Pennsylvania. The funding by cause and by state pages list the largest funders for a given area and how to approach them.
Play a game about who funds Marlboro School of Music →
These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2025 (financials across 2017–2025), and the filings of 35 funders that report grants to it. “On record” means captured in the filings we have parsed — a funder that does not e-file, or whose grant detail is not itemized, will not appear. Filings run roughly 12–24 months behind. Trends on this page end at FY2023, the last fiscal year that has finished arriving; later years are shown and marked, and move no figure. Data on this page was exported October 14, 2026. What this page cannot tell you · view filing