California · Nonprofit
GUERREROS ATHLETIC FOUNDATION
GUERREROS ATHLETIC FOUNDATION (California) receives grants from 2 organizations whose IRS filings report $1,173 to it, the largest being THE JOSEPH & KATHERINE CASTUCCI FOUNDATION ($1,000). 1 of them have funded it in more than one year.
- Revenue FY2025
- $221k
- Funders on record
- 2
- Grants received
- $1k
- Net assets
- $70k
What Guerreros Athletic Foundation does
Mission
The purpose is to help communities through sport activities.
As stated on its FY2025 Form 990.
Programs
Sport activities
Sport activities
$229,818 spent100% of program spending
The 2 programs described on its FY2025 Form 990, listed largest first by expense. Program spending in total: $229,818.
Who funds it, year by year
2020 → 2023: the base held at 1 funder, grant income fell $57 → $37.
1 of 2 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 15% 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 GUERREROS ATHLETIC FOUNDATION’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
GUERREROS ATHLETIC FOUNDATION leans on a few funders — its largest provides 85% 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: 2020 100% · 2021 95% · 2022 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
100% of GUERREROS ATHLETIC FOUNDATION's grant income comes from California funders.
Funder states come from each funder’s own filing. $173 arriving through sponsors registered in 1 state 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
GUERREROS ATHLETIC FOUNDATION receives grants from 2 organizations whose IRS filings report $1k to it.
this organization peer median middle 50% of peers· 4,237 philanthropy nonprofits $100k–$1M, FY2025
Organizations like GUERREROS ATHLETIC FOUNDATION
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 California
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Where the money goes
100% of spending goes to programs.
Governance
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 GUERREROS ATHLETIC FOUNDATION: 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 GUERREROS ATHLETIC FOUNDATION?
- GUERREROS ATHLETIC FOUNDATION (California) receives grants from 2 organizations whose IRS filings report $1,173 to it, the largest being THE JOSEPH & KATHERINE CASTUCCI FOUNDATION ($1,000). 1 of them have funded it in more than one year.
- How many funders does GUERREROS ATHLETIC FOUNDATION have?
- IRS filings report 2 organizations giving $1,173 in grants to GUERREROS ATHLETIC FOUNDATION, 1 of which have funded it in more than one year.
- Who is the largest funder of GUERREROS ATHLETIC FOUNDATION?
- THE JOSEPH & KATHERINE CASTUCCI FOUNDATION is the largest funder on record, with $1,000 in grants. The full list of funders is on this page.
- How can an organization like GUERREROS ATHLETIC FOUNDATION 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.
Play a game about who funds Guerreros Athletic →
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 2 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