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National Museum of Mathematics
National Museum of Mathematics reported $25.9 million in revenue and $10.4 million in expenses for the fiscal year ending June 30, 2025. Of every $100 it spent, $69.26 went to program services, $22.57 to management and general costs and $8.17 to fundraising. Its largest source of revenue was contributions and grants: 83.6% of the total. The highest compensation it reported for one person was $436,598 (EXECUTIVE DIRECTOR AND CEO). 11 people received more than $100,000 in reportable compensation. Revenue rose 225% between FY2020 and FY2025. Source: Form 990, FY2025.
Where $100 of spending went
The fiscal year ending June 30, 2025 · Form 990, Part IX, line 25 · total expenses $10MFor context, the median across 876 covered arts, culture & humanities charities: $79.98 programs, $13.89 management, $6.13 fundraising (medians computed separately, so they may not sum to $100).
Where $100 of revenue came from
The fiscal year ending June 30, 2025 · Form 990, Part VIII · total revenue $26MThe 990 scorecard · same measures for every charity, no grades
| Measure | FY2025 | Median |
|---|---|---|
| Program services Part IX 25(B) ÷ 25(A) | 69.3% | 78.5% |
| Management & general Part IX 25(C) ÷ 25(A) | 22.6% | 13.6% |
| Fundraising Part IX 25(D) ÷ 25(A) | 8.2% | 6.0% |
| Fundraising cost per $1 of contributions Part IX 25(D) ÷ Part VIII 1h | $0.04 | $0.10 |
| Contributions & grants share of revenue Part VIII 1h ÷ 12 | 83.6% | 57.5% |
| Government grants share of revenue Part VIII 1e ÷ 12 | 0.6% | 1.7% |
| Program service revenue share Part VIII 2g ÷ 12 | 7.8% | 20.8% |
| Highest reported compensation Part VII-A, columns D–F | $436,598 | $385,706 |
| Highest compensation as share of expenses Part VII-A ÷ Part IX 25(A) | 4.20% | 2.03% |
| People paid over $100,000 Part VII, line 2 | 11 | 8 |
| Net assets, in months of expenses Part X 33(B) ÷ monthly expenses | 79.5 | 36.6 |
| Independent voting board members Part VI 1a–1b | 26 of 26 | 100.0% |
A median is context, not a target: hospitals, universities, food banks and grantmakers spend in very different ways. What these measures can and can't tell you.
What the money paid for, in its own words
FY2025 · Form 990, Part III · the three largest programs by expenseMuseum: during fiscal 2025, momath operated a hands-on museum focused on mathematics in a temporary location on fifth avenue, as well as running online programs reaching people in 145 countries around the world. During the fiscal year, the museum also refurbished old exhibits, designed and built new exhibits, and managed a construction project for its new location on sixth avenue
Community: momath operates a number of public programs that serve the community by providing experiences that highlight the evolving, creative, and aesthetic nature of mathematics. These programs also aim to show the many unexpected ways that math touches on the world around US and on our everyday lives. Community programs included several monthly presentation series, a suite of traveling/portable exhibits, and a variety of in-person and online programs directed toward people of all ages and backgrounds, including students and teachers on field trips, families, adults without children, and…
Highest reported compensation
FY2025 · Form 990, Part VII, Section A · roles as filed; names are in the filing, not here| Role | From this org | From related orgs | Other | Total |
|---|---|---|---|---|
| EXECUTIVE DIRECTOR AND CEO Officer, 40.00 hrs/week | $405,932 | $0 | $30,666 | $436,598 |
| ASSOCIATE DIRECTOR & CHIEF DESIGNER Officer, 40.00 hrs/week | $218,478 | $0 | $21,611 | $240,089 |
| OUTREACH MATHEMATICIAN Highest compensated employee, 40.00 hrs/week | $170,947 | $0 | $16,159 | $187,106 |
| CTO Highest compensated employee, 40.00 hrs/week | $168,600 | $0 | $16,155 | $184,755 |
| HEAD OF HR AND ADMINISTRATION Highest compensated employee, 40.00 hrs/week | $147,945 | $0 | $22,482 | $170,427 |
| COO Highest compensated employee, 40.00 hrs/week | $120,445 | $0 | $15,128 | $135,573 |
| CHIEF OF EDUCATIONAL PROGRAMS Highest compensated employee, 40.00 hrs/week | $115,241 | $0 | $17,230 | $132,471 |
11 people received more than $100,000 in reportable compensation from National Museum of Mathematics (Part VII, line 2). Compensation of current officers, directors and key employees totaled $894K (Part IX, line 5).
6 years of filings
Form 990, Parts I, VII, IX and X · each row is that year's own filing, linkedGovernance answers, as filed
FY2025 · the organization's own yes/no answers; explanations, if any, are in Schedule O of the filing · what each means- Voting board members, and how many are independent Part VI, lines 1a–1b26 · 26 independent
- Audited financial statements Part XII 2bYes
- Conflict-of-interest policy Part VI 12aYes
- Whistleblower policy Part VI 13Yes
- Document retention policy Part VI 14Yes
- Independent process for top executive pay Part VI 15aYes
- Board given the 990 before filing Part VI 11aYes
- Family or business ties among insiders Part VI 2No
- Aware of a significant diversion of assets Part VI 5No
- Excess benefit transaction with an insider Part IV 25aNo
- Loans to or from insiders outstanding Part IV 26No
- Lobbying, or a 501(h) election in effect Part IV 4Yes
- Over $15,000 of professional fundraising services Part IV 18No
- Over $10,000 of activity outside the U.S. Part IV 14bNo
- Employees Part I, line 562
- Volunteers Part I, line 6100
Largest outside contractors
FY2025 · Form 990, Part VII, Section B · businesses only| PROSKAUER ROSE LLP Legal services | $1,271,318 |
| ZUBATKIN OWNER REPRESENTATION LLC Project management | $750,371 |
| EXHIBITOLOGY Exhibit fabrication | $656,428 |
| DUKE UNIVERSITY Visiting professor services | $211,861 |
| MBE CODE & ZONING LLC Location permitting services | $111,264 |
Individuals listed as contractors are left out. 5 contractors were paid more than $100,000 in all.
Private foundation grants it received
16 private foundations reported grants to National Museum of Mathematics totaling $11M on their tax year 2023 Form 990-PF returns. See which foundations, on WHOFUNDS.
Source: WHOFUNDS open grant graph, matched from Form 990-PF Part XV.
Correct a figure or respond
Every number above is copied from National Museum of Mathematics's own Form 990. If one doesn't match the filing, that's our error and we'll fix it. If you work for National Museum of Mathematics, you can publish a response that is linked from this page.
Share or embed this breakdown
Of every $100 National Museum of Mathematics spent in FY2025, $69.26 went to programs. The full breakdown, from its IRS Form 990:
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Similar-sized charities in this cause
- American Repertory Theatre CoCambridge, MA · revenue $26M · programs 79.0% · FY2025
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- National Comedy Center OperatorJamestown, NY · revenue $26M · programs 64.8% · 2024
- Connecticut Public BroadcastingHartford, CT · revenue $26M · programs 71.6% · FY2025
- New Museum of Contemporary ArtNew York, NY · revenue $26M · programs 80.6% · FY2025
All arts, culture & humanities charities · Largest charities in New York
Questions people ask
How much of National Museum of Mathematics's spending goes to programs?
In the fiscal year ending June 30, 2025, National Museum of Mathematics reported that 69.3% of its $10.4 million in expenses went to program services, 22.6% to management and general and 8.2% to fundraising (Form 990, Part IX).
How much does National Museum of Mathematics pay its top executive?
The largest total compensation National Museum of Mathematics reported for one person in the fiscal year ending June 30, 2025 was $436,598, for the role of EXECUTIVE DIRECTOR AND CEO (Form 990, Part VII, including compensation from related organizations and other compensation).
Where does National Museum of Mathematics get its money?
Of $25.9 million in revenue in the fiscal year ending June 30, 2025, 83.6% came from contributions and grants (including 0.6% from government grants) and 7.8% from program service revenue (Form 990, Part VIII).
Is National Museum of Mathematics a registered charity?
The IRS lists EIN 27-1450809 as a 501(c)(3) organization (publicly supported organization (170(b)(1)(a)(vi))), and its records show contributions as tax-deductible. Form 990 filings on record here cover tax years 2019, 2020, 2021, 2022, 2023, 2024. A filing shows what the organization reported; it doesn't by itself show whether a program works.
Sources
- FY2025: Form 990 for the fiscal year ending June 30, 2025, object 202611359349304146 · read the filing · XML
- FY2024: Form 990 for the fiscal year ending June 30, 2024, object 202511359349306916 · read the filing
- FY2023: Form 990 for the fiscal year ending June 30, 2023, object 202421359349306082 · read the filing
- FY2022: Form 990 for the fiscal year ending June 30, 2022, object 202321289349301982 · read the filing
- FY2021: Form 990 for the fiscal year ending June 30, 2021, object 202241269349300324 · read the filing
- FY2020: Form 990 for the fiscal year ending June 30, 2020, object 202131309349301808 · read the filing
All filings for EIN 27-1450809: ProPublica Nonprofit Explorer · IRS Tax Exempt Organization Search. Figures are as the organization reported them; we have not audited them.