California · Nonprofit
WILMINGTON HISTORICAL SOCIETY
WILMINGTON HISTORICAL SOCIETY (California) receives grants from 4 organizations whose IRS filings report $22,648 to it, the largest being LOCAL INITIATIVES SUPPORT CORPORATION ($15,000). 1 of them have funded it in more than one year.
- Revenue FY2026
- $70k
- Funders on record
- 4
- Grants received
- $23k
- Net assets
- $26k
Who funds it, year by year
2020 → 2023: the base held at 1 funder, grant income fell $15k → $62.
1 of 4 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 1% 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 WILMINGTON HISTORICAL SOCIETY’s funders (the co-funder graph). Association, not causation.
How concentrated its funding is
WILMINGTON HISTORICAL SOCIETY leans on a few funders — its largest provides 66% of grant income and the top three 99%; 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: 2020 100% · 2021 100% · 2022 100% · 2023 100% — broadly stable.
“Effective funders” = inverse Herfindahl index (1 / Σ shareᵢ²) — the number of equal-sized funders that would give the same concentration.
Where its funders are
WILMINGTON HISTORICAL SOCIETY draws 89% of its grant income from funders outside California, across 4 states in all.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing.
Against its field
WILMINGTON HISTORICAL SOCIETY runs a healthier operating margin than half of the 266 arts & culture nonprofits its size.
this organization peer median middle 50% of peers· 266 arts & culture nonprofits under $100k, FY2026
Organizations like WILMINGTON HISTORICAL SOCIETY
Organizations whose mission and program text most resemble this one, by semantic similarity over every organization in the US filings — the closest peers, and often the clearest route to shared or prospective funders.
In California
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Public support
100%
Share of support from the public (Schedule A) — the basis for its public-charity status.
Footprint & structure
Files a return copy in 1 state
Screen this organization
A dated, signed PDF of the compliance screen for WILMINGTON HISTORICAL SOCIETY: IRS status (Business Master File, Publication 78, auto-revocation), the OFAC sanctions lists, the Internal Revenue Bulletin, and California registration, with the Rev. Proc. 2018-32 §8.01 reliance elements stated element by element. Generated from the current files at the moment you download it.
Screens are triage, not determinations; a source that cannot be read reports not screened, never clear. Screen this nonprofit · How the screen works · on the API as GET /api/screening/{ein}?format=pdf
Questions and answers
- Who funds WILMINGTON HISTORICAL SOCIETY?
- WILMINGTON HISTORICAL SOCIETY (California) receives grants from 4 organizations whose IRS filings report $22,648 to it, the largest being LOCAL INITIATIVES SUPPORT CORPORATION ($15,000). 1 of them have funded it in more than one year.
- How many funders does WILMINGTON HISTORICAL SOCIETY have?
- IRS filings report 4 organizations giving $22,648 in grants to WILMINGTON HISTORICAL SOCIETY, 1 of which have funded it in more than one year.
- Who is the largest funder of WILMINGTON HISTORICAL SOCIETY?
- LOCAL INITIATIVES SUPPORT CORPORATION is the largest funder on record, with $15,000 in grants. The full list of funders is on this page.
- How can an organization like WILMINGTON HISTORICAL SOCIETY find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in California. The funding by cause and by state pages list the largest funders for a given area and how to approach them.
Play a game about who funds Wilmington Historical Society →
These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2026 (financials across 2026–2026), and the filings of 4 funders 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. Trends on this page end at FY2023, the last fiscal year that has finished arriving; later years are shown and marked, and move no figure. What this page cannot tell you · view filing