Massachusetts · Nonprofit
Stall Brook School PTO
Stall Brook School PTO (Massachusetts) receives grants from 2 organizations whose IRS filings report $842 to it, the largest being AMAZONSMILE FOUNDATION ($789). 1 of them have funded it in more than one year, and 94% of the money arrives through donor-advised or pass-through sponsors rather than from an institution directly.
Against its field
Stall Brook School PTO receives grants from 2 organizations whose IRS filings report $842 to it.
this organization peer median middle 50% of peers· 16,609 education nonprofits under $100k, FY2025
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.
- Brookline Community Foundation Inclocal
- William M Cage Library Trustportfolio match
- Cooking Autism Incportfolio match
Who funds it, year by year
2022 → 2023: the base narrowed from 2 funders to 1 funder, grant income fell $598 → $244.
1 of 2 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 94% 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 Stall Brook School PTO’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
Stall Brook School PTO leans on a few funders — its largest provides 94% 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
94% of the income these shares are computed over arrives through pass-through sponsors or from payers whose filings do not say what kind of payment it is. Concentration is still measured over all of it, because the money is real; what it does not support is a claim about how many institutions have chosen to fund Stall Brook School PTO.
Largest funder’s share by year: 2022 91% · 2023 100% — 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.
Where its funders are
94% of Stall Brook School PTO's grant income arrives through donor-advised or pass-through sponsors, whose addresses record where the money is held rather than where the donor is. Of the $53 that is directly attributable, 100% of it comes from funders outside Massachusetts, across 1 state.
Funder states come from each funder’s own filing. $789 arriving through sponsors registered in 1 stateis 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.
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.
- Brookline Community Foundation InclocalMA · funds 39 organizations near you
- William M Cage Library Trustportfolio matchits grantees resemble your mission
- Cooking Autism Incportfolio matchits grantees resemble your mission
- Alliance for Educationportfolio matchits grantees resemble your mission
- National Congress of Parents & Teachersportfolio matchits grantees resemble your mission
- Fanangel Foundation Incportfolio matchits grantees resemble your mission
- The Marron Foundation Incportfolio matchits grantees resemble your mission
- North Easton Savings Bank Charitable Foundation Incportfolio matchits grantees resemble your mission
- For Inspiration and Recognition of Science and Technology (FIRST)portfolio matchits grantees resemble your mission
- Milpitas Charity Bingo Incportfolio matchits grantees resemble your mission
- William M & Donna J Hoaglin Foundation Incportfolio matchits grantees resemble your mission
- Ingenuityne Incportfolio 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 Stall Brook School PTO
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 Massachusetts
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Public support
100%
Share of support from the public (Schedule A) — the basis for its public-charity status.
Footprint & structure
Files a return copy in 1 state
Screen this organization
A dated, signed PDF of the compliance screen for Stall Brook School PTO: 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 Stall Brook School PTO?
- Stall Brook School PTO (Massachusetts) receives grants from 2 organizations whose IRS filings report $842 to it, the largest being AMAZONSMILE FOUNDATION ($789). 1 of them have funded it in more than one year, and 94% of the money arrives through donor-advised or pass-through sponsors rather than from an institution directly.
- How many funders does Stall Brook School PTO have?
- IRS filings report 2 organizations giving $842 in grants to Stall Brook School PTO, 1 of which have funded it in more than one year.
- Who is the largest funder of Stall Brook School PTO?
- AMAZONSMILE FOUNDATION is the largest funder on record, with $789 in grants. The full list of funders is on this page.
- How can an organization like Stall Brook School PTO 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 2025–2025), 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