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Massachusetts · Nonprofit
ARLINGTON HISTORICAL SOCIETY (Massachusetts) is funded by 6 grantmakers whose IRS filings report $31,200 in grants to it, the largest being MASSACHUSETTS FOUNDATION FOR THE ($15,000). 3 of them have funded it in more than one year.
Revenue, expenses and net assets — each indexed to 100 at its first filing year, so you read the trajectory, not the magnitude.
$500 from 1 funders in 2024, up from $7k and 3 in 2017.
1 of 6 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 20% 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 ARLINGTON HISTORICAL SOCIETY’s funders (the co-funder graph). Association, not causation.
ARLINGTON HISTORICAL SOCIETY leans on a few funders — its largest provides 48% of grant income and the top three 84%; half comes from just 2 funders.
the vertical line marks half of all grant income — 2 funders to its left
Largest funder’s share by year: 2017 71% · 2018 94% · 2019 100% · 2020 100% · 2021 100% · 2022 100% · 2023 93% · 2024 100% — growing more concentrated.
“Effective funders” = inverse Herfindahl index (1 / Σ shareᵢ²) — the number of equal-sized funders that would give the same concentration.
ARLINGTON HISTORICAL SOCIETY is locally rooted: 79% of its grant income comes from Massachusetts 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.
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. $283k 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.
Every figure is read directly from IRS Form 990 / 990-PF e-file XML — this organization’s own return for FY2024 (financials across 2020–2024), and the filings of 6funders 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