California · Nonprofit
SAMUEL JEFFERS CHILDHOOD CANCER FOUNDATION
SAMUEL JEFFERS CHILDHOOD CANCER FOUNDATION (California) receives grants from 3 organizations whose IRS filings report $32,175 to it, the largest being Network for Good ($19,920). 3 of them have funded it in more than one year, and 100% of the money arrives through donor-advised or pass-through sponsors rather than from an institution directly.
Against its field
SAMUEL JEFFERS CHILDHOOD CANCER FOUNDATION receives grants from 3 organizations whose IRS filings report $32k to it.
this organization peer median middle 50% of peers· 1,488 public benefit nonprofits under $100k, FY2018
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.
- The Community Foundation San Luis Obispolocal
- Ambers Antibodies Incportfolio match
- Phase One Foundationportfolio match
Who funds it, year by year
2018 → 2023: the base narrowed from 2 funders to 1 funder, grant income fell $11k → $225.
3 of 3 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 100% 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 SAMUEL JEFFERS CHILDHOOD CANCER 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
SAMUEL JEFFERS CHILDHOOD CANCER FOUNDATION leans on a few funders — its largest provides 62% 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
100% 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 SAMUEL JEFFERS CHILDHOOD CANCER FOUNDATION.
Largest funder’s share by year: 2018 53% · 2019 51% · 2020 97% · 2021 100% · 2022 100% · 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
100% of SAMUEL JEFFERS CHILDHOOD CANCER FOUNDATION'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. Too little is directly attributable to place on a map.
Funder states come from each funder’s own filing. $32k arriving through sponsors registered in 3 statesis 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.
- The Community Foundation San Luis ObispolocalCA · funds 117 organizations near you
- Ambers Antibodies Incportfolio matchits grantees resemble your mission
- Phase One Foundationportfolio matchits grantees resemble your mission
- Haymakers for Hope Incportfolio matchits grantees resemble your mission
- Matthew Larson Foundation for Pediatricportfolio matchits grantees resemble your mission
- Expect Miracles Foundationportfolio matchits grantees resemble your mission
- Groh George W Tr FBO Med Researchportfolio matchits grantees resemble your mission
- My Child's Hand Foundation Trustportfolio matchits grantees resemble your mission
- Global Genesportfolio matchits grantees resemble your mission
- Wrobel Family Foundationportfolio matchits grantees resemble your mission
- Swifty Foundationportfolio matchits grantees resemble your mission
- Children's Cancer Research Fundportfolio 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 SAMUEL JEFFERS CHILDHOOD CANCER FOUNDATION
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 SAMUEL JEFFERS CHILDHOOD CANCER 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. How the screen works · on the API as GET /api/screening/{ein}?format=pdf
Questions and answers
- Who funds SAMUEL JEFFERS CHILDHOOD CANCER FOUNDATION?
- SAMUEL JEFFERS CHILDHOOD CANCER FOUNDATION (California) receives grants from 3 organizations whose IRS filings report $32,175 to it, the largest being Network for Good ($19,920). 3 of them have funded it in more than one year, and 100% of the money arrives through donor-advised or pass-through sponsors rather than from an institution directly.
- How many funders does SAMUEL JEFFERS CHILDHOOD CANCER FOUNDATION have?
- IRS filings report 3 organizations giving $32,175 in grants to SAMUEL JEFFERS CHILDHOOD CANCER FOUNDATION, 3 of which have funded it in more than one year.
- Who is the largest funder of SAMUEL JEFFERS CHILDHOOD CANCER FOUNDATION?
- Network for Good is the largest funder on record, with $19,920 in grants. The full list of funders is on this page.
- How can an organization like SAMUEL JEFFERS CHILDHOOD CANCER 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.
These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2018 (financials across 2018–2018), and the filings of 3funders 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