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Iowa · Nonprofit
BRENTON ARBORETUM INC (Iowa) is funded by 25 grantmakers whose IRS filings report $4,714,180 in grants to it, the largest being COMMUNITY FDN OF GREATER DES MOINES ($2,606,258). 19 of them have funded it in more than one year.
Against its field
BRENTON ARBORETUM INC runs a healthier operating margin than three-quarters of the 16,477 arts & culture nonprofits its size.
this organization peer median middle 50% of peers· 16,477 arts & culture nonprofits $100k–$1M, 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.
55% of BRENTON ARBORETUM INC’s revenue is contributions — about as donation-reliant as the typical peer (63% for the typical peer).
Operating surplus or deficit each year, and months of liquidity in hand. 0 of the last 3 reported years ran a deficit.
$14k from 3 funders in 2025, up from $32k and 2 in 2017.
6 of 25 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 73% 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 BRENTON ARBORETUM INC’s funders (the co-funder graph). Association, not causation.
BRENTON ARBORETUM INC leans on a few funders — its largest provides 55% of grant income and the top three 91%; 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 98% · 2018 95% · 2019 70% · 2020 73% · 2021 44% · 2022 93% · 2023 62% · 2024 25% · 2025 46% — diversifying over time.
“Effective funders” = inverse Herfindahl index (1 / Σ shareᵢ²) — the number of equal-sized funders that would give the same concentration.
59% of BRENTON ARBORETUM INC's funders are still giving 3 years after their first grant; 76% 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.
BRENTON ARBORETUM INC is locally rooted: 60% of its grant income comes from Iowa 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 25 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.
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.
93% of spending goes to programs.
86%
Share of support from the public (Schedule A) — the basis for its public-charity status.
Operates in 1 state
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 25funders 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