Michigan · Nonprofit
Leelanau Historical Society
Leelanau Historical Society (Michigan) receives grants from 15 organizations whose IRS filings report $488,615 to it, the largest being NATIONAL PHILANTHROPIC TRUST ($239,050). 7 of them have funded it in more than one year, and 63% of the money arrives through donor-advised or pass-through sponsors rather than from an institution directly.
- Revenue FY2025
- $269k
- Funders on record
- 15
- Grants received
- $489k
- Net assets
- $1.1M
What Leelanau Historical Society does
Mission
Inspire people to explore the past, understand the present, and envision the future of the diverse cultures in the leelanau peninsula and its islands. This is done by exhibitions and educational programs and perserving artifacts, documents, etc.
As stated on its FY2025 Form 990.
Programs
Exhibits and archival digitization as well as in-person and online presentations to enlighten, engage and share the historic preservation efforts of the Leelanau Historical Society and museum. Served approximately 2758 patrons in 2025.
$155,440 spent$6,273 earned by the program97% of program spendingHistory afloat - a sunset history cruise on lake michigan. Approximately 81 guided tours in 2025.
$3,500 spent$3,905 earned by the program2% of program spendingLecture income. Approximately 2690 attendees in 2025.
$2,076 spent$3,600 earned by the program1% of program spending
The 3 programs described on its FY2025 Form 990, listed largest first by expense. Program spending in total: $161,016.
The organization over time
Each line starts at 100 in 2017, so what you read is the shape rather than the size: 150 means half as much again as 2017, 50 means half. The number beside each label in the key is where it ended. The shaded band is where the middle 50% of its peers' revenue would sit, given their growth.
Balance sheet
Total assets and total liabilities at each year end, in dollars. The largest one-year move in total assets was 2020 to 2021, from $987k to $1.1M (+15%).
How it's funded, over time
Each bar is one year's revenue split into where it came from, and every bar is the same height — these are shares, not amounts, so a year that raised twice as much looks the same size. Hover a bar for the split.
78% of Leelanau Historical Society’s revenue is contributions — more donation-reliant than the typical peer (64% for the typical peer).
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 8 of the last 9 reported years ran a deficit.
reserve
Leadership and staff
The officers, directors, trustees and key employees listed on each return. Joined and no longer listed compare each filing with the year before, matching people by surname and first initial; a year after a gap, or a roster under three people, has no comparison.
Chief executive
Kim Kelderhouse
Executive Director
As listed on its FY2025 Form 990.
The chief executive listed changed between the FY2020 and FY2021 filings.
Who funds it, year by year
2017 → 2023: the base broadened from 3 funders to 6 funders, grant income rose $36k → $99k.
5 of 15 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 63% 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 Leelanau Historical Society’s funders (the co-funder graph). Association, not causation. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
How concentrated its funding is
Leelanau Historical Society leans on a few funders — its largest provides 49% 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
64% of the income these shares are computed over arrives through pass-through sponsors or from payers whose filings do not say what kind of payment it is. Concentration is still measured over all of it, because the money is real; what it does not support is a claim about how many institutions have chosen to fund Leelanau Historical Society.
Largest funder’s share by year: 2017 69% · 2018 66% · 2019 50% · 2020 57% · 2021 40% · 2022 85% · 2023 41% — diversifying over time.
“Effective funders” = inverse Herfindahl index (1 / Σ shareᵢ²) — the number of equal-sized funders that would give the same concentration. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
How long its funders stay
25% of Leelanau Historical Society's funders are still giving 3 years after their first grant; 47% 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. Measured to FY2023, the last fiscal year that has finished arriving — a funder cannot be counted as lapsed in a year most filers have not reached.
Where its funders are
63% of Leelanau Historical Society's grant income arrives through donor-advised or pass-through sponsors, whose addresses record where the money is held rather than where the donor is. Of the $179k that is directly attributable, 83% of it comes from funders outside Michigan, across 8 states.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. $309k arriving through sponsors registered in 4 states is excluded from the map and the split above: a sponsor holds money on a donor’s behalf, so its registered address would place those dollars somewhere no donor need ever have been. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
Against its field
Leelanau Historical Society is better cushioned than half of the 11,634 arts & culture nonprofits its size.
this organization peer median middle 50% of peers· 11,634 arts & culture nonprofits $100k–$1M, FY2025
Organizations like Leelanau 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 Michigan
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Where the money goes
59% of spending goes to programs.
Governance
Public support
93%
Share of support from the public (Schedule A) — the basis for its public-charity status.
Screen this organization
A dated, signed PDF of the compliance screen for Leelanau 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 Leelanau Historical Society?
- Leelanau Historical Society (Michigan) receives grants from 15 organizations whose IRS filings report $488,615 to it, the largest being NATIONAL PHILANTHROPIC TRUST ($239,050). 7 of them have funded it in more than one year, and 63% of the money arrives through donor-advised or pass-through sponsors rather than from an institution directly.
- How many funders does Leelanau Historical Society have?
- IRS filings report 15 organizations giving $488,615 in grants to Leelanau Historical Society, 7 of which have funded it in more than one year.
- Who is the largest funder of Leelanau Historical Society?
- NATIONAL PHILANTHROPIC TRUST is the largest funder on record, with $239,050 in grants. The full list of funders is on this page.
- How can an organization like Leelanau Historical Society find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in Michigan. The funding by cause and by state pages list the largest funders for a given area and how to approach them.
These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2025 (financials across 2017–2025), and the filings of 15 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. Data on this page was exported October 14, 2026. What this page cannot tell you · view filing