Pennsylvania · Nonprofit
SOUTHEASTERN PENNSYLVANIA SYMPHONY ORCHESTRA SOCIETY INC
SOUTHEASTERN PENNSYLVANIA SYMPHONY ORCHESTRA SOCIETY INC (Pennsylvania) receives grants from 2 organizations whose IRS filings report $363,500 to it, the largest being HARRY L WILLETT FOUNDATION CO RYAN WILLETT ($350,000). 2 of them have funded it in more than one year.
Three funders worth looking at
Grantmakers with no record of funding this organization, ranked by how strongly the co-funder graph and the mission embeddings agree. The evidence is in section 03.
- The Philadelphia Cultural Fund Incshared funders
- Arthur Judson Foundation Incportfolio match
- Bruckner Society of Americaportfolio match
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.
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.
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
Who funds it, year by year
2017 → 2023: the base held at 1 funder, grant income fell $15k → $4k.
From the IRS filings of SOUTHEASTERN PENNSYLVANIA SYMPHONY ORCHESTRA SOCIETY INC’s funders (the co-funder graph). 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
SOUTHEASTERN PENNSYLVANIA SYMPHONY ORCHESTRA SOCIETY INC leans on a few funders — its largest provides 96% of grant income and the top three 100%; 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 100% · 2018 100% · 2019 100% · 2023 100% — broadly stable.
“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.
Where its funders are
SOUTHEASTERN PENNSYLVANIA SYMPHONY ORCHESTRA SOCIETY INC draws 96% of its grant income from funders outside Pennsylvania, across 2 states in all.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. 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.
Funders to approach
Grantmakers that don’t fund you yet, surfaced two ways: they back organizations that share your funders, or their grantees resemble your mission. The ones both signals agree on come first.
- The Philadelphia Cultural Fund Incshared fundersPA · backs 47 organizations that share your funders
- Arthur Judson Foundation Incportfolio matchits grantees resemble your mission
- Bruckner Society of Americaportfolio matchits grantees resemble your mission
- American Symphony Orchestra League D/B/A League of American Orchestrasportfolio matchits grantees resemble your mission
- The Amphion Foundation Inc Co Alter Kendrick & Baron LLPportfolio matchits grantees resemble your mission
- Musical Fund Society of Philadelphiaportfolio matchits grantees resemble your mission
- E Nakamichi Foundationportfolio matchits grantees resemble your mission
- The Aaron Copland Fund for Music Inc Co Alter Kendrick & Baron LLPportfolio matchits grantees resemble your mission
- Metropolitan Arts Councilportfolio matchits grantees resemble your mission
- Ross McKee Foundation for the Musical Artsportfolio matchits grantees resemble your mission
- New Music USA Incportfolio matchits grantees resemble your mission
- Williamson Foundation for Musicportfolio matchits grantees resemble your mission
From the co-funder graph (funders backing at least two comparable organizations, shrunk for grantee count, donor-advised and mega-funds excluded) and the universe embeddings. A research starting point; overlap is association, not a guarantee of fit.
Organizations like SOUTHEASTERN PENNSYLVANIA SYMPHONY ORCHESTRA SOCIETY INC
Nonprofits whose mission and program text most resemble this one, by semantic similarity over the universe of 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
88% of spending goes to programs.
Governance
Public support
66%
Share of support from the public (Schedule A) — the basis for its public-charity status.
Screen this organization
A dated, signed PDF of the compliance screen for SOUTHEASTERN PENNSYLVANIA SYMPHONY ORCHESTRA SOCIETY 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. How the screen works · on the API as GET /api/screening/{ein}?format=pdf
Questions and answers
- Who funds SOUTHEASTERN PENNSYLVANIA SYMPHONY ORCHESTRA SOCIETY INC?
- SOUTHEASTERN PENNSYLVANIA SYMPHONY ORCHESTRA SOCIETY INC (Pennsylvania) receives grants from 2 organizations whose IRS filings report $363,500 to it, the largest being HARRY L WILLETT FOUNDATION CO RYAN WILLETT ($350,000). 2 of them have funded it in more than one year.
- How many funders does SOUTHEASTERN PENNSYLVANIA SYMPHONY ORCHESTRA SOCIETY INC have?
- IRS filings report 2 organizations giving $363,500 in grants to SOUTHEASTERN PENNSYLVANIA SYMPHONY ORCHESTRA SOCIETY INC, 2 of which have funded it in more than one year.
- Who is the largest funder of SOUTHEASTERN PENNSYLVANIA SYMPHONY ORCHESTRA SOCIETY INC?
- HARRY L WILLETT FOUNDATION CO RYAN WILLETT is the largest funder on record, with $350,000 in grants. The full list of funders is on this page.
- How can an organization like SOUTHEASTERN PENNSYLVANIA SYMPHONY ORCHESTRA SOCIETY 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.
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 2funders 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 August 27, 2026. What this page cannot tell you · view filing