California · Nonprofit
South El Monte High School PTSA
South El Monte High School PTSA (California) receives grants from 4 organizations whose IRS filings report $31,500 to it, the largest being STANLEY W EKSTROM FOUNDATION INC ($24,000). 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.
- International Brotherhood of Teamstersshared funders
- Alliance for Educationportfolio match
- National Congress of Parents & Teachersportfolio match
The organization over time
Each line starts at 100 in 2019, so what you read is the shape rather than the size: 150 means half as much again as 2019, 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 7 reported years ran a deficit.
Who funds it, year by year
2017 → 2018: the base narrowed from 3 funders to 2 funders, grant income rose $13k → $16k.
From the IRS filings of South El Monte High School PTSA’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
South El Monte High School PTSA leans on a few funders — its largest provides 76% of grant income and the top three 97%; 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 77% · 2018 88% — 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
100% of South El Monte High School PTSA's grant income comes from California funders.
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. Your 4 funders put you under-funded among the 297 organizations that share them.
- International Brotherhood of Teamstersshared fundersDC · backs 13 organizations that share your funders
- Alliance for Educationportfolio matchits grantees resemble your mission
- National Congress of Parents & Teachersportfolio matchits grantees resemble your mission
- William M Cage Library Trustportfolio matchits grantees resemble your mission
- Yli Believe Foundationportfolio matchits grantees resemble your mission
- Fanangel Foundation Incportfolio matchits grantees resemble your mission
- Pasadena Tournament of Roses Foundationportfolio matchits grantees resemble your mission
- Cooking Autism Incportfolio matchits grantees resemble your mission
- Milpitas Charity Bingo Incportfolio matchits grantees resemble your mission
- Synopsys Silicon Valley Science and Technology Outreach Foundationportfolio matchits grantees resemble your mission
- Juliana Lee Foundationportfolio matchits grantees resemble your mission
- Peter & Masha Plotkin Foundationportfolio 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 South El Monte High School PTSA
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 California
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.
Screen this organization
A dated, signed PDF of the compliance screen for South El Monte High School PTSA: 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 South El Monte High School PTSA?
- South El Monte High School PTSA (California) receives grants from 4 organizations whose IRS filings report $31,500 to it, the largest being STANLEY W EKSTROM FOUNDATION INC ($24,000). 2 of them have funded it in more than one year.
- How many funders does South El Monte High School PTSA have?
- IRS filings report 4 organizations giving $31,500 in grants to South El Monte High School PTSA, 2 of which have funded it in more than one year.
- Who is the largest funder of South El Monte High School PTSA?
- STANLEY W EKSTROM FOUNDATION INC is the largest funder on record, with $24,000 in grants. The full list of funders is on this page.
- How can an organization like South El Monte High School PTSA find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in California. 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 2019–2025), and the filings of 4funders 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