Illinois · Nonprofit
National Hellenic Museum
National Hellenic Museum (Illinois) receives grants from 36 organizations whose IRS filings report $4,302,275 to it, the largest being THE JOHN P CALAMOS FOUNDATION ($2,837,886). 21 of them have funded it in more than one year.
- Revenue FY2024
- $1.6M
- Funders on record
- 36
- Grants received
- $4.3M
- Net assets
- $11M
What National Hellenic Museum does
Mission
The national museum tours, school programs, classes, events, children's and family programs use the museum's permanent and temporary exhibitions as a foundation for learning. All of the educational programs for children and adults are offered to encourage experiential learning as well as offer new ways of thinking about greek history and greek culture.
As stated on its FY2024 Form 990.
Programs
Museum store - sales of educational books and materials to supplement current museum displays.
$1,281 spent$4,757 earned by the program0% of program spendingMuseum - to promote understanding of hellenic culture, ideas and traditions and to disseminate the information to all interested parties.
$441,451 spent$3,038 earned by the program100% of program spending
The 2 programs described on its FY2023 Form 990, listed largest first by expense. Program spending in total: $442,732.
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 2023 to 2024, from $17M to $15M (−7%).
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: 2020 4%. Grants only. Government contracts and fees sit inside program revenue.
113% of National Hellenic Museum’s revenue is contributions — more reliant on donations than three-quarters of its peers (63% for the typical peer).
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 5 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.
Board chair
John Calamos Sr
Chairman
As listed on its FY2024 Form 990.
Who funds it, year by year
2017 → 2023: the base broadened from 8 funders to 20 funders, grant income rose $114k → $1.5M.
5 of 36 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 5% of grant dollars received. That money is really individual donors directing a sponsor; the institutions to cultivate are the non-DAF funders.
Left out of every figure on this page: $17k from 2 payers (the payer shares this organization's board, largest Hellenic Initiative Inc). These are real filings, and they are not money National Hellenic Museum raised.
From the IRS filings of National Hellenic Museum’s funders (the co-funder graph). Top 30 of 36 funders by total. 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
National Hellenic Museum leans on a few funders — its largest provides 66% of grant income and the top three 81%; 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 47% · 2018 42% · 2019 56% · 2020 96% · 2021 58% · 2022 52% · 2023 84% — growing more concentrated.
“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 National Hellenic Museum's funders are still giving 3 years after their first grant; 58% 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
89% of National Hellenic Museum's grant income comes from Illinois funders.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. $214k arriving through sponsors registered in 5 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
National Hellenic Museum is better cushioned than half of the 5,127 arts & culture nonprofits its size.
this organization peer median middle 50% of peers· 5,127 arts & culture nonprofits $1M–$10M, FY2024
Organizations like National Hellenic Museum
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 Illinois
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Where the money goes
22% of spending goes to programs.
Governance
Public support
75%
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 National Hellenic Museum: 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 National Hellenic Museum?
- National Hellenic Museum (Illinois) receives grants from 36 organizations whose IRS filings report $4,302,275 to it, the largest being THE JOHN P CALAMOS FOUNDATION ($2,837,886). 21 of them have funded it in more than one year.
- How many funders does National Hellenic Museum have?
- IRS filings report 36 organizations giving $4,302,275 in grants to National Hellenic Museum, 21 of which have funded it in more than one year.
- Who is the largest funder of National Hellenic Museum?
- THE JOHN P CALAMOS FOUNDATION is the largest funder on record, with $2,837,886 in grants. The full list of funders is on this page.
- How can an organization like National Hellenic Museum find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in Illinois. 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 National Hellenic Museum →
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 36 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