Massachusetts · Nonprofit
SOUTH MOUNTAIN ASSOCIATION
SOUTH MOUNTAIN ASSOCIATION (Massachusetts) receives grants from 1 organization whose IRS filings report $1,027,600 to it, the largest being LOU H WILLEKE TUW ($1,027,600). 1 of them have funded it in more than one year.
- Revenue FY2025
- $564k
- Funders on record
- 1
- Grants received
- $1.0M
- Net assets
- $5.2M
What South Mountain Association does
Programs
Conduct musical performances for the community
$110,460 spentAward scholarships to local students or residents pursuing a career in music
$15,000 spent
The 2 programs described on its FY2025 Form 990-PF.
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.
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 $4.0M to $5.0M (+25%).
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.
Who funds it, year by year
2018 → 2023: the base held at 1 funder, grant income fell $129k → $102k.
From the IRS filings of SOUTH MOUNTAIN ASSOCIATION’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.
Where its funders are
SOUTH MOUNTAIN ASSOCIATION draws 100% of its grant income from funders outside Massachusetts, across 1 state 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.
Organizations like SOUTH MOUNTAIN ASSOCIATION
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 Massachusetts
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Screen this organization
A dated, signed PDF of the compliance screen for SOUTH MOUNTAIN ASSOCIATION: 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 SOUTH MOUNTAIN ASSOCIATION?
- SOUTH MOUNTAIN ASSOCIATION (Massachusetts) receives grants from 1 organization whose IRS filings report $1,027,600 to it, the largest being LOU H WILLEKE TUW ($1,027,600). 1 of them have funded it in more than one year.
- How many funders does SOUTH MOUNTAIN ASSOCIATION have?
- IRS filings report 1 organization giving $1,027,600 in grants to SOUTH MOUNTAIN ASSOCIATION, 1 of which have funded it in more than one year.
- Who is the largest funder of SOUTH MOUNTAIN ASSOCIATION?
- LOU H WILLEKE TUW is the largest funder on record, with $1,027,600 in grants. The full list of funders is on this page.
- How can an organization like SOUTH MOUNTAIN ASSOCIATION find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in Massachusetts. 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 1 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