Montana · Nonprofit
Big Horn County Historical Society
Big Horn County Historical Society (Montana) receives grants from 4 organizations whose IRS filings report $4,113,926 to it, the largest being CUSTER BATTLEFIELD PRESERVATION COMMITTEE ($4,097,076). 3 of them have funded it in more than one year.
- Revenue FY2024
- $1.1M
- Funders on record
- 4
- Grants received
- $4.1M
- Net assets
- $4.0M
What Big Horn County Historical Society does
Mission
The organization is dedicated to researching, collecting, restoring, protecting and exhibiting all historical items related to the culture and history of Big Horn County. The mission statement is Preserving our Past for the Future
As stated on its FY2024 Form 990.
Program
Operation of Big Horn County Historical Museum including collecting, perserving and exhibiting all items of significance to the areas history and culture. Volunteers and employees are working constantly to restore, repair or maintain items acquired by the organization. Community events are held to showcase the museums collections, including a Kids History Day for the area school children.
$206,816 spent100% of program spending
The program described on its FY2024 Form 990. Program spending in total: $206,816.
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.
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 $2.1M to $3.2M (+57%).
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.
Government-grant reliance: 2017 12% · 2018 25% · 2019 30% · 2020 10% · 2021 8% · 2022 21% · 2023 17% · 2024 6%. Grants only. Government contracts and fees sit inside program revenue.
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 3 of the last 8 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.
Who funds it, year by year
2018 → 2023: the base broadened from 1 funder to 2 funders, grant income fell $5k → $3k.
From the IRS filings of Big Horn County 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
Big Horn County Historical Society leans on a few funders — its largest provides 100% of grant income and the top three 100%; 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: 2018 100% · 2020 100% · 2022 94% · 2023 80% — 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.
Where its funders are
100% of Big Horn County Historical Society's grant income comes from Montana funders.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. 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.
Organizations like Big Horn County 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 Montana
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Where the money goes
81% of spending goes to programs.
Governance
Public support
92%
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 Big Horn County 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 Big Horn County Historical Society?
- Big Horn County Historical Society (Montana) receives grants from 4 organizations whose IRS filings report $4,113,926 to it, the largest being CUSTER BATTLEFIELD PRESERVATION COMMITTEE ($4,097,076). 3 of them have funded it in more than one year.
- How many funders does Big Horn County Historical Society have?
- IRS filings report 4 organizations giving $4,113,926 in grants to Big Horn County Historical Society, 3 of which have funded it in more than one year.
- Who is the largest funder of Big Horn County Historical Society?
- CUSTER BATTLEFIELD PRESERVATION COMMITTEE is the largest funder on record, with $4,097,076 in grants. The full list of funders is on this page.
- How can an organization like Big Horn County Historical Society find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in Montana. 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 Big Horn County Historical Society →
These figures are 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 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. Data on this page was exported October 14, 2026. What this page cannot tell you · view filing