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California · Nonprofit
MARLBOROUGH SCHOOL (California) is funded by 100 grantmakers whose IRS filings report $11,654,402 in grants to it, the largest being FIDELITY INVESTMENTS CHARITABLE GIFT FUND ($1,111,763). 71 of them have funded it in more than one year.
Against its field
MARLBOROUGH SCHOOL is better cushioned than half of the 3,811 education nonprofits its size.
this organization peer median middle 50% of peers· 3,811 education nonprofits $10M–$100M, FY2023
Revenue, expenses and net assets — each indexed to 100 at its first filing year, so you read the trajectory, not the magnitude. The shaded band is where the middle 50% of its peers' revenue would sit, given their growth.
The funding model — what share of revenue comes from contributions, programs, investments and other sources — and whether it's shifting.
10% of MARLBOROUGH SCHOOL’s revenue is contributions — about as donation-reliant as the typical peer (26% for the typical peer).
Operating surplus or deficit each year, and months of liquidity in hand. 3 of the last 6 reported years ran a deficit.
$76k from 3 funders in 2025, up from $542k and 24 in 2017.
22 of 100 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 38% 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 MARLBOROUGH SCHOOL’s funders (the co-funder graph). Top 30 of 100 funders by total. Association, not causation.
MARLBOROUGH SCHOOL has a broad base — no single funder exceeds 10% of grant income, and it takes 8 funders to reach half.
the vertical line marks half of all grant income — 8 funders to its left
Largest funder’s share by year: 2017 32% · 2018 17% · 2019 13% · 2020 26% · 2021 27% · 2022 20% · 2023 22% · 2024 12% · 2025 66% — growing more concentrated.
“Effective funders” = inverse Herfindahl index (1 / Σ shareᵢ²) — the number of equal-sized funders that would give the same concentration.
45% of MARLBOROUGH SCHOOL's funders are still giving 3 years after their first grant; 71% give in more than one year at all.
Share of funders still giving k years after their first recorded grant, pooled across every acquisition cohort. A funder counts as retained in a year only if it made a grant that year.
MARLBOROUGH SCHOOL draws 57% of its grant income from funders outside California — its reputation reaches beyond the state, across 19 states in all.
In-state vs out-of-state, by year
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 100 funders put you under-funded among the 400 organizations that share them.
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.
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.
Read directly from this organization’s own Form 990, as neutral context.
83% of spending goes to programs.
Operates in 1 state
Every figure is read directly from IRS Form 990 / 990-PF e-file XML — this organization’s own return for FY2023 (financials across 2018–2023), and the filings of 100funders 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. view filing