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Washington · Nonprofit
MUSEUM OF FLIGHT FOUNDATION (Washington) is funded by 48 grantmakers whose IRS filings report $138,078,419 in grants to it, the largest being THE ALDARRA FOUNDATION ($132,658,000). 33 of them have funded it in more than one year.
Against its field
MUSEUM OF FLIGHT FOUNDATION runs a healthier operating margin than three-quarters of the 552 arts & culture nonprofits its size.
this organization peer median middle 50% of peers· 552 arts & culture nonprofits $10M–$100M, FY2024
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.
79% of MUSEUM OF FLIGHT FOUNDATION’s revenue is contributions — more donation-reliant than the typical peer (61% for the typical peer).
Operating surplus or deficit each year, and months of liquidity in hand. 0 of the last 8 reported years ran a deficit.
$22k from 1 funders in 2025, up from $796k and 9 in 2017.
18 of 48 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 3% 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 MUSEUM OF FLIGHT FOUNDATION’s funders (the co-funder graph). Top 30 of 48 funders by total. Association, not causation.
MUSEUM OF FLIGHT FOUNDATION leans on a few funders — its largest provides 96% of grant income and the top three 97%; 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: 2017 72% · 2018 58% · 2019 22% · 2020 70% · 2021 90% · 2022 98% · 2023 98% · 2024 98% · 2025 100% — growing more concentrated.
“Effective funders” = inverse Herfindahl index (1 / Σ shareᵢ²) — the number of equal-sized funders that would give the same concentration.
43% of MUSEUM OF FLIGHT FOUNDATION's funders are still giving 3 years after their first grant; 69% 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.
MUSEUM OF FLIGHT FOUNDATION is locally rooted: 97% of its grant income comes from Washington funders.
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 48 funders put you typical 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.
Grants and contracts to this organization from federal (USASpending) and state checkbooks, reconciled to its EIN. $247k on record.
Federal grants vs contracts are distinguished; state line items keep their reported category. Matched by name + geography (the BMF), so coverage is partial and precision-first.
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.
79% of spending goes to programs.
29%
Share of support from the public (Schedule A) — the basis for its public-charity status.
Part of a family of 3 related entities
Every figure is read directly from IRS Form 990 / 990-PF e-file XML — this organization’s own return for FY2024 (financials across 2017–2024), and the filings of 48funders 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