Nonprofit · EIN 27-1450809
NATIONAL MUSEUM OF MATHEMATICS
Tax-exempt · NEW YORK, NY 10011
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| June 30, 2025 | 990 | $25,872,371 | $10,384,430 | $15,487,941 | $104,435,849 | $35,662,178 | $68,773,671 |
| June 30, 2024 | 990 | $27,013,034 | $9,811,847 | $17,201,187 | $55,783,461 | $4,297,570 | $51,485,891 |
| June 30, 2023 | 990 | $7,869,251 | $9,533,535 | -$1,664,284 | $38,585,225 | $2,103,008 | $36,482,217 |
Financial details: 990 for the year ended June 30, 2025
Revenue
- Contributions, gifts and grants
- $21,619,998
- of which government grants
- $147,275
- Membership dues
- $129,946
- Program service revenue
- $2,023,774
- Investment income
- $2,017,333
- Net rental income
- $27,400
- Net gain from sales of assets
- -$129,386
- Net income from fundraising events
- -$63,323
- Net income from sales of inventory
- $235,436
- Other revenue
- $211,266
Expenses
- Grants and similar amounts paid
- $30,000
- Compensation of officers, directors and key employees
- $893,526
- Other salaries and wages
- $2,620,156
- Salaries, compensation and benefits (total)
- $4,022,778
- Professional fundraising fees
- $0
- Legal fees
- $661,351
- Accounting fees
- $185,712
- Occupancy
- $3,358,279
- Travel
- $216,087
- Depreciation
- $259,935
- Program services (functional)
- $7,192,091
- Management and general (functional)
- $2,344,085
- Fundraising (functional)
- $848,254
Balance sheet and other
- Total assets, start of year
- $55,783,461
- Total assets, end of year
- $104,435,849
- Total liabilities, end of year
- $35,662,178
- Net assets, end of year
- $68,773,671
- Land, buildings and equipment
- $16,818,190
- Publicly traded securities
- $39,398,608
- Net assets without donor restrictions
- $52,022,249
- Net assets with donor restrictions
- $16,751,422
- Gross receipts
- $45,995,539
- Employees
- 62
- Volunteers
- 100
- Year formed
- 2009
- State of legal domicile
- NY
From the e-filed returns the IRS publishes as XML (latest three processing years; amended returns replace the original). PDF copies at the IRS.
Officers, directors and key employees
As listed on the 990 for the year ended June 30, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation | Other / benefits |
|---|---|---|---|---|
| CINDY LAWRENCE | EXECUTIVE DIRECTOR AND CEO Officer | 40 | $405,932 | $30,666 |
| TIMOTHY NISSEN | ASSOCIATE DIRECTOR & CHIEF DESIGNER Officer | 40 | $218,478 | $21,611 |
| CHAIM GOODMAN-STRAUSS | OUTREACH MATHEMATICIAN Highest-paid employee | 40 | $170,947 | $16,159 |
| STEPHEN UZZO | CTO Highest-paid employee | 40 | $168,600 | $16,155 |
| LYNN VERA | HEAD OF HR AND ADMINISTRATION Highest-paid employee | 40 | $147,945 | $22,482 |
| YIA HANG | COO Highest-paid employee | 40 | $120,445 | $15,128 |
| SANDRA DIRKX | CHIEF OF EDUCATIONAL PROGRAMS Highest-paid employee | 40 | $115,241 | $17,230 |
| JOHN OVERDECK | TRUSTEE / CHAIR Trustee or director, Officer | 3 | $0 | $0 |
| DAVID TUROCK | TRUSTEE / VICE CHAIR Trustee or director, Officer | 1 | $0 | $0 |
| SAUL ROSENTHAL | TRUSTEE / SECRETARY Trustee or director, Officer | 1 | $0 | $0 |
| ROBERT JONES | TRUSTEE / TREASURER Trustee or director, Officer | 1 | $0 | $0 |
| KEVIN ATTESON | TRUSTEE Trustee or director | 1 | $0 | $0 |
| ARMEN AVANESSIANS | TRUSTEE Trustee or director | 1 | $0 | $0 |
| MANJUL BHARGAVA | TRUSTEE Trustee or director | 1 | $0 | $0 |
| DAVID DE WEESE | TRUSTEE Trustee or director | 1 | $0 | $0 |
18 more people on this return
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| ROBERT FREY | TRUSTEE Trustee or director | 1 | $0 |
| LAETITIA GARRIOTT DE CAYEUX | TRUSTEE Trustee or director | 1 | $0 |
| JUDITH GIBBONS | TRUSTEE Trustee or director | 1 | $0 |
| MATTHEW GOLDSTEIN | TRUSTEE Trustee or director | 1 | $0 |
| MARK HARRIS | TRUSTEE Trustee or director | 1 | $0 |
| MARIA KLAWE | TRUSTEE Trustee or director | 1 | $0 |
| PHILIPP LEGNER | TRUSTEE Trustee or director | 1 | $0 |
| SANDY LEONG | TRUSTEE Trustee or director | 1 | $0 |
| CHRISTINA LEWIS | TRUSTEE Trustee or director | 1 | $0 |
| RAJ MAHAJAN | TRUSTEE Trustee or director | 1 | $0 |
| RICHARD PECHTER | TRUSTEE Trustee or director | 1 | $0 |
| SUZANNE PENAVIC | TRUSTEE Trustee or director | 1 | $0 |
| EDWARD SCHMIDT | TRUSTEE Trustee or director | 1 | $0 |
| DEXTER SENFT | TRUSTEE Trustee or director | 1 | $0 |
| MARILYN SIMONS | TRUSTEE Trustee or director | 1 | $0 |
| JOHN URSCHEL | TRUSTEE Trustee or director | 1 | $0 |
| JADE VINSON | TRUSTEE Trustee or director | 1 | $0 |
| STEPHEN WOLFRAM | TRUSTEE Trustee or director | 1 | $0 |
990 for the year ended June 30, 2024: 32 people
| Name | Title | Hours / week | Compensation | Other / benefits |
|---|---|---|---|---|
| CINDY LAWRENCE | EXECUTIVE DIRECTOR Officer | 100 | $352,151 | $47,962 |
| TIMOTHY NISSEN | ASSOCIATE DIRECTOR Officer | 80 | $202,647 | $33,743 |
| STEPHEN UZZO | CTO Highest-paid employee | 40 | $186,588 | $34,986 |
| YIA HANG | COO Key employee | 40 | $180,379 | $15,840 |
| CHAIM GOODMAN-STRAUSS | OUTREACH MATHEMATICIAN Highest-paid employee | 40 | $144,655 | $20,060 |
| PAUL BERGER | SR. DEVELOPMENT OFFICER Highest-paid employee | 40 | $101,684 | $33,419 |
| BRIAN ZIED | CFO Officer | 40 | $79,400 | $34,834 |
| JOHN OVERDECK | TRUSTEE / CHAIR Trustee or director, Officer | 3 | $0 | $0 |
| DAVID TUROCK | TRUSTEE / VICE CHAIR Trustee or director, Officer | 1 | $0 | $0 |
| SAUL ROSENTHAL | TRUSTEE / SECRETARY Trustee or director, Officer | 1 | $0 | $0 |
| ROBERT JONES | TRUSTEE/TREASURER Trustee or director, Officer | 1 | $0 | $0 |
| KEVIN ATTESON | TRUSTEE Trustee or director | 1 | $0 | $0 |
| ARMEN AVANESSIANS | TRUSTEE Trustee or director | 1 | $0 | $0 |
| MANJUL BHARGAVA | TRUSTEE Trustee or director | 3 | $0 | $0 |
| DAVID DE WEESE | TRUSTEE Trustee or director | 1 | $0 | $0 |
| ROBERT FREY | TRUSTEE Trustee or director | 1 | $0 | $0 |
| LAETITIA GARRIOTT DE CAYEUX | TRUSTEE Trustee or director | 1 | $0 | $0 |
| JUDITH GIBBONS | TRUSTEE Trustee or director | 1 | $0 | $0 |
| MATTHEW GOLDSTEIN | TRUSTEE Trustee or director | 1 | $0 | $0 |
| MARK HARRIS | TRUSTEE Trustee or director | 1 | $0 | $0 |
| MARIA KLAWE | TRUSTEE Trustee or director | 1 | $0 | $0 |
| PHILIPP LEGNER | TRUSTEE Trustee or director | 1 | $0 | $0 |
| SANDY LEONG | TRUSTEE Trustee or director | 1 | $0 | $0 |
| CHRISTINA LEWIS | TRUSTEE Trustee or director | 1 | $0 | $0 |
| RAJ MAHAJAN | TRUSTEE Trustee or director | 1 | $0 | $0 |
| RICHARD PECHTER | TRUSTEE Trustee or director | 1 | $0 | $0 |
| SUZANNE PENAVIC | TRUSTEE Trustee or director | 1 | $0 | $0 |
| DEXTER SENFT | TRUSTEE Trustee or director | 1 | $0 | $0 |
| MARILYN SIMONS | TRUSTEE Trustee or director | 1 | $0 | $0 |
| JOHN URSCHEL | TRUSTEE Trustee or director | 1 | $0 | $0 |
| JADE VINSON | TRUSTEE Trustee or director | 1 | $0 | $0 |
| STEPHEN WOLFRAM | TRUSTEE Trustee or director | 1 | $0 | $0 |
990 for the year ended June 30, 2023: 28 people
| Name | Title | Hours / week | Compensation | Other / benefits |
|---|---|---|---|---|
| CINDY LAWRENCE | EXECUTIVE DIRECTOR Officer | 85 | $341,649 | $44,403 |
| TIMOTHY NISSEN | ASSOCIATE DIRECTOR Officer | 65 | $201,317 | $27,965 |
| YIA HANG | COO Key employee | 40 | $181,640 | $16,591 |
| PAUL BERGER | SR. DEVELOPMENT OFFICER Highest-paid employee | 40 | $101,057 | $31,526 |
| BRIAN ZIED | CFO Officer | 1 | $50,906 | $14,705 |
| MANJUL BHARGAVA | TRUSTEE / VISITING PROFESSOR Trustee or director | 3 | $18,222 | $0 |
| JOHN OVERDECK | TRUSTEE / CHAIR Trustee or director, Officer | 3 | $0 | $0 |
| DAVID TUROCK | TRUSTEE / VICE CHAIR Trustee or director, Officer | 1 | $0 | $0 |
| SAUL ROSENTHAL | TRUSTEE / SECRETARY Trustee or director, Officer | 1 | $0 | $0 |
| KEVIN ATTESON | TRUSTEE Trustee or director | 1 | $0 | $0 |
| DAVID H DE WEESE | TRUSTEE Trustee or director | 1 | $0 | $0 |
| ROBERT J FREY | TRUSTEE Trustee or director | 1 | $0 | $0 |
| LAETITIA GARRIOTT DE CAYEUX | TRUSTEE Trustee or director | 1 | $0 | $0 |
| JUDITH GIBBONS | TRUSTEE Trustee or director | 1 | $0 | $0 |
| MATTHEW GOLDSTEIN | TRUSTEE Trustee or director | 1 | $0 | $0 |
| MARK D HARRIS | TRUSTEE Trustee or director | 1 | $0 | $0 |
| ROBERT W JONES | TRUSTEE/TREASURER Trustee or director, Officer | 1 | $0 | $0 |
| SANDY LEONG | TRUSTEE Trustee or director | 1 | $0 | $0 |
| RAJ MAHAJAN | TRUSTEE Trustee or director | 1 | $0 | $0 |
| RICHARD PECHTER | TRUSTEE Trustee or director | 1 | $0 | $0 |
| SUZANNE PENAVIC | TRUSTEE Trustee or director | 1 | $0 | $0 |
| JOHN URSCHEL | TRUSTEE Trustee or director | 1 | $0 | $0 |
| JADE VINSON | TRUSTEE Trustee or director | 1 | $0 | $0 |
| STEPHEN WOLFRAM | TRUSTEE Trustee or director | 1 | $0 | $0 |
| CHRISTINA LEWIS | TRUSTEE Trustee or director | 1 | $0 | $0 |
| MARILYN SIMONS | TRUSTEE Trustee or director | 1 | $0 | $0 |
| ARMEN AVANESSIANS | TRUSTEE Trustee or director | 1 | $0 | $0 |
| STEPHEN DELLA PIETRA | TRUSTEE UNTIL DEC 22 Trustee or director | 0.5 | $0 | $0 |
Address and contacts
- Address (IRS master file)
- 635 SIXTH AVE, NEW YORK, NY 10011-2008
- In care of
- % CINDY LAWRENCE
- Principal officer (990 for 2024)
- CINDY LAWRENCE, 635 6TH AVENUE, NEW YORK, NY 10011
- Signed the 990
- CINDY LAWRENCE, EXECUTIVE DIRECTOR
- Phone
- (212) 542-0566
- Website
- WWW.MOMATH.ORG
- Return prepared by
- CITRIN COOPERMAN ADVISORS LLC
Mission
MATHEMATICS ILLUMINATES THE PATTERNS THAT ABOUND IN OUR WORLD. THE NATIONAL MUSEUM OF MATHEMATICS (MOMATH) STRIVES TO ENHANCE PUBLIC UNDERSTANDING AND PERCEPTION OF MATHEMATICS. ITS DYNAMIC EXHIBITS AND PROGRAMS STIMULATE INQUIRY, SPARK CURIOSITY, AND REVEAL THE WONDERS OF MATHEMATICS. THE MUSEUM'S ACTIVITIES LEAD A BROAD AND DIVERSE AUDIENCE TO UNDERSTAND THE EVOLVING, CREATIVE, HUMAN, AND AESTHETIC NATURE OF MATHEMATICS.
Program accomplishments
- MUSEUM: 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.Expenses $5,894,864 · revenue $1,795,307
- 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 TOURISTS FROM ALL OVER THE WORLD.Expenses $1,222,928 · grants $30,000 · revenue $461,468
- TRAVELING EXHIBITION: MATH MIDWAY 2 GO (MM2GO.ORG) IS A SPIN-OFF OF MOMATH'S ORIGINAL TRAVELING EXHIBITION (THE MATH MIDWAY). IT CAN BE DEPLOYED AT A VARIETY OF VENUES, INCLUDING SCHOOLS, LIBRARIES, COMMUNITY CENTERS, ETC.Expenses $74,299 · revenue $2,435
What it must file and when
IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. Its accounting year ends in June, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | June 30, 2026 | November 16, 2026 | Not due yet |
| 2024 | June 30, 2025 | November 17, 2025 | 990 on file |
| 2023 | June 30, 2024 | November 15, 2024 | 990 on file |
IRS record
- EIN
- 27-1450809
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Publicly supported organization (170(b)(1)(A)(vi))
- Donations deductible (Pub 78)
- Public charity, 50% deduction limit
- Exempt since
- 2010
- Accounting year ends
- June
- Files
- Form 990 or 990-EZ
- Category (NTEE)
- Arts, culture and humanities (A50)
- Assets (IRS master file)
- $104,435,849
- Income (IRS master file)
- $45,995,539
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | June 2025 | $25,872,371 | $10,384,430 | $104,435,849 | IRS |
| 990 | June 2024 | $27,013,034 | $9,811,847 | $55,783,461 | IRS |
| 990 | June 2023 | $7,869,251 | $9,533,535 | $38,585,225 | XML |
| 990 | June 2022 | $6,224,027 | $7,708,376 | $36,788,428 | IRS |
| 990 | June 2021 | – | – | – | IRS |
| 990 | June 2020 | – | – | – | IRS |
| 990 | June 2019 | – | – | – | IRS |
990-N: the IRS bulk file holds only the latest e-Postcard per organization; earlier years come from archived copies of that file since 2020 and can have gaps (the IRS e-Postcard search lists every one). 990, 990-EZ, 990-PF, 990-T: every e-filed return in the IRS e-file index since 2019; XML for the latest three processing years, amounts from the IRS Statistics of Income extracts before that. PDF copies and determination letters at the IRS (search EIN 27-1450809).
Questions about NATIONAL MUSEUM OF MATHEMATICS
- What is the EIN of NATIONAL MUSEUM OF MATHEMATICS?
- The employer identification number (EIN) of NATIONAL MUSEUM OF MATHEMATICS is 27-1450809.
- Is NATIONAL MUSEUM OF MATHEMATICS tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2010.
- Are donations to NATIONAL MUSEUM OF MATHEMATICS tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does NATIONAL MUSEUM OF MATHEMATICS file?
- Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N.
- When is the next return of NATIONAL MUSEUM OF MATHEMATICS due?
- The return for tax year 2025 (the year ending June 30, 2026) is due November 16, 2026. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did NATIONAL MUSEUM OF MATHEMATICS last file with the IRS?
- The latest return in the IRS public files is the 990 for the year ended June 2025.
- Who is the principal officer of NATIONAL MUSEUM OF MATHEMATICS?
- The 990 for the year ended June 30, 2025 names CINDY LAWRENCE.
- Who are the officers and directors of NATIONAL MUSEUM OF MATHEMATICS?
- The 990 for the year ended June 30, 2025 lists 33 people; 7 received compensation from the organization, the highest $405,932 (CINDY LAWRENCE, EXECUTIVE DIRECTOR AND CEO).
- How much revenue does NATIONAL MUSEUM OF MATHEMATICS have?
- On its 990 for the year ended June 30, 2025 it reported revenue of $25,872,371, expenses of $10,384,430 and total assets of $104,435,849 at year end.
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