California · Nonprofit
Diamond Club Boosters Inc
Diamond Club Boosters Inc (California) receives grants from 2 organizations whose IRS filings report $727 to it, the largest being The Bank of America Charitable Foundation Inc ($525). 1 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.
- Simi Valley Hosp and Hlth Care Services dba Adventist Health Simi Valleylocalportfolio match
- Sherwood Country Club Charitable Foundationlocal
- Fanangel Foundation Incportfolio 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. 3 of the last 6 reported years ran a deficit.
Who funds it, year by year
2020 → 2023: the base held at 1 funder, grant income fell $525 → $88.
1 of 2 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 28% 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 Diamond Club Boosters 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
Diamond Club Boosters Inc leans on a few funders — its largest provides 72% 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
28% 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 Diamond Club Boosters Inc.
Largest funder’s share by year: 2020 100% · 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
Diamond Club Boosters Inc draws 100% of its grant income from funders outside California, across 1 state in all.
Funder states come from each funder’s own filing. $202 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.
- Simi Valley Hosp and Hlth Care Services dba Adventist Health Simi Valleylocalportfolio matchCA · funds 14 organizations near you · its grantees resemble your mission
- Sherwood Country Club Charitable FoundationlocalCA · funds 52 organizations near you
- Fanangel Foundation Incportfolio matchits grantees resemble your mission
- Yli Believe Foundationportfolio matchits grantees resemble your mission
- Sacramento Consolidated Charitiesportfolio matchits grantees resemble your mission
- Pirates Charitiesportfolio matchits grantees resemble your mission
- Pitch in for Baseball and Softballportfolio matchits grantees resemble your mission
- Minnesota Twins Community Fundportfolio matchits grantees resemble your mission
- The Joseph & Katherine Castucci Foundationportfolio matchits grantees resemble your mission
- MLB-MLBPA Youth Development Foundationportfolio matchits grantees resemble your mission
- Thunderbird Foundationportfolio matchits grantees resemble your mission
- Chobani Foundation 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 Diamond Club Boosters 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 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.
Footprint & structure
Files a return copy in 1 state
Screen this organization
A dated, signed PDF of the compliance screen for Diamond Club Boosters 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 Diamond Club Boosters Inc?
- Diamond Club Boosters Inc (California) receives grants from 2 organizations whose IRS filings report $727 to it, the largest being The Bank of America Charitable Foundation Inc ($525). 1 of them have funded it in more than one year.
- How many funders does Diamond Club Boosters Inc have?
- IRS filings report 2 organizations giving $727 in grants to Diamond Club Boosters Inc, 1 of which have funded it in more than one year.
- Who is the largest funder of Diamond Club Boosters Inc?
- The Bank of America Charitable Foundation Inc is the largest funder on record, with $525 in grants. The full list of funders is on this page.
- How can an organization like Diamond Club Boosters Inc 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 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