Oklahoma · Nonprofit
Top of Oklahoma Historical Society Inc
Top of Oklahoma Historical Society Inc (Oklahoma) receives grants from 3 organizations whose IRS filings report $21,900 to it, the largest being INASMUCH FOUNDATION ($13,400). 1 of them have funded it in more than one year.
- Revenue FY2025
- $64k
- Funders on record
- 3
- Grants received
- $22k
- Net assets
- $124k
What Top of Oklahoma Historical Society Inc does
Mission
The Top of Oklahoma Historical Society Museum will continue to collect and preserve north central Oklahoma and south Kansas artifacts, historical records and collections, seeking to link the past, to present, to the future in an effort better understand our community.
As stated on its FY2025 Form 990-EZ.
Program
A formal strategic plan was created,approved and implemented for making an inventory of the museum's artifacts, historical records and collections.
$0 spent
The program described on its FY2025 Form 990-EZ. Program spending in total: $0.
The organization over time
Each line starts at 100 in 2021, so what you read is the shape rather than the size: 150 means half as much again as 2021, 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 2021 to 2022, from $21k to $164k (+688%).
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.
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 2 of the last 5 reported years ran a deficit.
Who funds it, year by year
2020 → 2023: the base held at 1 funder, grant income rose $2k → $3k.
From the IRS filings of Top of Oklahoma Historical Society Inc’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
Top of Oklahoma Historical Society Inc leans on a few funders — its largest provides 61% 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: 2020 100% · 2021 100% · 2022 70% · 2023 100% — broadly stable.
“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 Top of Oklahoma Historical Society Inc's grant income comes from Oklahoma 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 Top of Oklahoma Historical Society Inc
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 Oklahoma
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Public support
93%
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 Top of Oklahoma Historical Society Inc: 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 Top of Oklahoma Historical Society Inc?
- Top of Oklahoma Historical Society Inc (Oklahoma) receives grants from 3 organizations whose IRS filings report $21,900 to it, the largest being INASMUCH FOUNDATION ($13,400). 1 of them have funded it in more than one year.
- How many funders does Top of Oklahoma Historical Society Inc have?
- IRS filings report 3 organizations giving $21,900 in grants to Top of Oklahoma Historical Society Inc, 1 of which have funded it in more than one year.
- Who is the largest funder of Top of Oklahoma Historical Society Inc?
- INASMUCH FOUNDATION is the largest funder on record, with $13,400 in grants. The full list of funders is on this page.
- How can an organization like Top of Oklahoma Historical Society Inc find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in Oklahoma. 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 Top of Oklahoma Historical Society →
These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2025 (financials across 2021–2025), and the filings of 3 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