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Washington, D.C. · Nonprofit
SIDWELL FRIENDS SCHOOL (Washington, D.C.) is funded by 80 grantmakers whose IRS filings report $37,486,902 in grants to it, the largest being FIDELITY INVESTMENTS CHARITABLE GIFT FUND ($201,628,944). 52 of them have funded it in more than one year.
Grant support over time, funder by funder — shade shows the grant size each year.
From the IRS filings of SIDWELL FRIENDS SCHOOL’s funders (the co-funder graph). Top 30 of 80 funders by total. Association, not causation.
SIDWELL FRIENDS SCHOOL leans on a few funders — its largest provides 70% of grant income and the top three 83%; half comes from just 1 funder.
the vertical line marks half of all grant income — 1 funder to its left
“Effective funders” = inverse Herfindahl index (1 / Σ shareᵢ²) — the number of equal-sized funders that would give the same concentration.
48% of SIDWELL FRIENDS SCHOOL's funders are still giving 3 years after their first grant; 65% 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.
SIDWELL FRIENDS SCHOOL draws 98% of its grant income from funders outside Washington, D.C. — its reputation reaches beyond the state, across 21 states in all.
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.
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.
Every figure is read directly from IRS Form 990 / 990-PF e-file XML — this organization’s own return for FY2024, and the filings of 80funders 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