Nonprofit · EIN 94-1567656
MARIN MONTESSORI SCHOOL INC
Tax-exempt · CORTE MADERA, CA 94925
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| June 30, 2025 | 990 | $12,570,256 | $11,663,200 | $907,056 | $29,496,747 | $13,642,159 | $15,854,588 |
| June 30, 2024 | 990 | $14,068,015 | $11,077,912 | $2,990,103 | $30,734,157 | $15,699,488 | $15,034,669 |
| June 30, 2023 | 990 | $10,789,468 | $10,301,946 | $487,522 | $27,591,353 | $15,674,657 | $11,916,696 |
Financial details: 990 for the year ended June 30, 2025
Revenue
- Contributions, gifts and grants
- $1,706,632
- Program service revenue
- $10,319,109
- Investment income
- $594,815
- Net gain from sales of assets
- $209,393
- Net income from fundraising events
- -$51,354
- Other revenue
- -$50,300
Expenses
- Grants and similar amounts paid
- $1,173,422
- Compensation of officers, directors and key employees
- $1,378,842
- Other salaries and wages
- $4,478,794
- Salaries, compensation and benefits (total)
- $7,317,538
- Professional fundraising fees
- $0
- Legal fees
- $18,843
- Accounting fees
- $41,588
- Occupancy
- $796,433
- Travel
- $49,577
- Depreciation
- $767,842
- Program services (functional)
- $8,577,378
- Management and general (functional)
- $2,623,647
- Fundraising (functional)
- $462,175
Balance sheet and other
- Total assets, start of year
- $30,734,157
- Total assets, end of year
- $29,496,747
- Total liabilities, end of year
- $13,642,159
- Net assets, end of year
- $15,854,588
- Land, buildings and equipment
- $11,311,443
- Publicly traded securities
- $10,618,097
- Net assets without donor restrictions
- $10,555,133
- Net assets with donor restrictions
- $5,299,455
- Gross receipts
- $23,886,425
- Employees
- 83
- Volunteers
- 150
- Year formed
- 1963
- State of legal domicile
- CA
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 |
|---|---|---|---|---|
| SAM SHAPIRO | HEAD OF SCHOOL Officer | 40 | $342,535 | $26,437 |
| KARL REICHSTETTER | DIRECTOR OF FINANCE Officer | 32 | $152,740 | $69,425 |
| SIRI PANDAY | DIRECTOR OF PRIMARY EDUCATION Key employee | 40 | $165,112 | $44,152 |
| CAROLYN WOOLF | ASSISTANT HEAD OF SCHOOL Key employee | 40 | $162,253 | $45,456 |
| LESLIE COHEN KASTNER | DIRECTOR OF ADMISSIONS Highest-paid employee | 40 | $139,635 | $45,147 |
| TERRENCE DUBOW | DIRECTOR OF COMMUNICATIONS Highest-paid employee | 40 | $151,761 | $17,411 |
| BILL SNEED | JUNIOR HIGH DIRECTOR Key employee | 40 | $151,230 | $17,566 |
| SHREE CARNEY | DIRECTOR OF DEVELOPMENT Highest-paid employee | 40 | $114,532 | $44,117 |
| MINIVER WALES | DIRECTOR OF ELEMENTARY EDUCATION Highest-paid employee | 40 | $123,801 | $17,474 |
| EMILY BROCKMAN | TEACHER - SPECIAL SERVICES Highest-paid employee | 32 | $114,953 | $15,175 |
| ALIYYA SHELLEY MATTOS | CO-CHAIR Trustee or director, Officer | 2 | $0 | $0 |
| KATE CAYANNI | CO-CHAIR Trustee or director, Officer | 2 | $0 | $0 |
| KUNAL KAUL | VICE CHAIR Trustee or director, Officer | 2 | $0 | $0 |
| CARLA RUMMO | TREASURER Trustee or director, Officer | 2 | $0 | $0 |
| STELLA BEALE | SECRETARY Trustee or director, Officer | 2 | $0 | $0 |
9 more people on this return
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| MEENAL BALAR | DIRECTOR Trustee or director | 2 | $0 |
| JOHN HARRINGTON | DIRECTOR Trustee or director | 2 | $0 |
| KELLY LAUBER | DIRECTOR Trustee or director | 2 | $0 |
| MATTHEW OLHAUSEN | DIRECTOR Trustee or director | 2 | $0 |
| FRANNIE POPE HOHMAN | DIRECTOR Trustee or director | 2 | $0 |
| MAGGIE SCHEAR | DIRECTOR Trustee or director | 2 | $0 |
| ANNA SHIMKO | DIRECTOR Trustee or director | 2 | $0 |
| AMY SOPER | DIRECTOR Trustee or director | 2 | $0 |
| JC TORRES | DIRECTOR Trustee or director | 2 | $0 |
990 for the year ended June 30, 2024: 21 people
| Name | Title | Hours / week | Compensation | Other / benefits |
|---|---|---|---|---|
| SAM SHAPIRO | HEAD OF SCHOOL Officer | 40 | $309,181 | $39,775 |
| CAROLYN WOOLF | ASSISTANT HEAD OF SCHOOL Key employee | 40 | $156,927 | $61,208 |
| LESLIE COHEN KASTNER | ADMISSIONS Highest-paid employee | 40 | $130,941 | $78,401 |
| SIRI PANDAY | PRIMARY DIRECTOR Key employee | 40 | $157,950 | $32,739 |
| KARL REICHSTETTER | DIRECTOR OF FINANCE Officer | 32 | $137,192 | $36,277 |
| MINIVER WALES | DIRECTOR OF EDUCATION Highest-paid employee | 40 | $125,354 | $44,214 |
| BILL SNEED | JUNIOR HIGH DIRECTOR Highest-paid employee | 40 | $146,143 | $19,128 |
| TERRENCE DUBOW | DIRECTOR OF COMMUNICATIONS Highest-paid employee | 40 | $142,732 | $22,182 |
| EMILY BROCKMAN | TEACHER Highest-paid employee | 32 | $112,754 | $8,456 |
| CARLA RUMMO | CHAIR Trustee or director, Officer | 4 | $0 | $0 |
| ALIYYA SHELLEY MATTOS | VICE CHAIR Trustee or director, Officer | 4 | $0 | $0 |
| SYLPHIEL YIP | TREASURER Trustee or director, Officer | 4 | $0 | $0 |
| PIA DELEON | SECRETARY Trustee or director, Officer | 4 | $0 | $0 |
| STELLA BEALE | DIRECTOR Trustee or director | 2 | $0 | $0 |
| KATE CAYANNI | DIRECTOR Trustee or director | 2 | $0 | $0 |
| JEFF GOSSETT | DIRECTOR Trustee or director | 2 | $0 | $0 |
| KUNAL KAUL | DIRECTOR Trustee or director | 2 | $0 | $0 |
| KELLY LAUBER | DIRECTOR Trustee or director | 2 | $0 | $0 |
| FRANNIE POPE HOHMAN | DIRECTOR Trustee or director | 2 | $0 | $0 |
| MAGGIE SCHEAR | DIRECTOR Trustee or director | 2 | $0 | $0 |
| ANNA SHIMKO | DIRECTOR Trustee or director | 2 | $0 | $0 |
990 for the year ended June 30, 2023: 19 people
| Name | Title | Hours / week | Compensation | Other / benefits |
|---|---|---|---|---|
| SAM SHAPIRO | HEAD OF SCHOOL Officer | 40 | $300,232 | $15,643 |
| CAROLYN WOOLF | ASSISTANT HEAD OF SCHOOL Key employee | 40 | $158,920 | $57,844 |
| SIRI PANDAY | DIRECTOR OF EDUCATION Highest-paid employee | 40 | $144,036 | $31,138 |
| BILL SNEED | LEVEL DIRECTOR Highest-paid employee | 40 | $144,108 | $6,958 |
| TERRENCE DUBOW | DIRECTOR OF COMMUNICATIONS Highest-paid employee | 40 | $137,966 | $7,087 |
| MINIVER WALES | DIRECTOR OF EDUCATION Highest-paid employee | 40 | $121,030 | $7,192 |
| EMILY BROCKMAN | TEACHER Highest-paid employee | 40 | $108,337 | $5,092 |
| KARL REICHSTETTER | DIRECTOR OF FINANCE Officer | 30 | $85,080 | $9,520 |
| CARLA RUMMO | CHAIR Trustee or director, Officer | 4 | $0 | $0 |
| DOUG ALEY | CHAIR EMERITUS Trustee or director, Officer | 4 | $0 | $0 |
| ALIYYA SHELLEY MATTOS | VICE CHAIR Trustee or director, Officer | 4 | $0 | $0 |
| SYLPHIEL YIP | TREASURER Trustee or director, Officer | 4 | $0 | $0 |
| PIA DELEON | SECRETARY Trustee or director, Officer | 4 | $0 | $0 |
| STELLA BEALE | DIRECTOR Trustee or director | 2 | $0 | $0 |
| RAJKUMARI NEOGY | DIRECTOR Trustee or director | 2 | $0 | $0 |
| FRANNIE POPE-HOHMAN | DIRECTOR Trustee or director | 2 | $0 | $0 |
| NICK STIRITZ | DIRECTOR Trustee or director | 2 | $0 | $0 |
| THEA THOMPSON | DIRECTOR Trustee or director | 2 | $0 | $0 |
| JAMIE WHITTINGTON | DIRECTOR Trustee or director | 2 | $0 | $0 |
Address and contacts
- Address (IRS master file)
- 5200 PARADISE DR, CORTE MADERA, CA 94925-2107
- Principal officer (990 for 2024)
- SAM SHAPIRO, 5200 PARADISE DRIVE, CORTE MADERA, CA 949252107
- Signed the 990
- SAM SHAPIRO, HEAD OF SCHOOL
- Phone
- (415) 924-5388
- Return prepared by
- ARMANINO ADVISORY LLC
California records
California keeps its own records of charities and corporations. Search them by EIN 94-1567656 or by the name MARIN MONTESSORI SCHOOL INC.
- Attorney General, Registry of Charities and Fundraisers
- Registration status and filed reports (CT-TR-1, RRF-1)
- Secretary of State, bizfile Online
- Corporation status, entity number, agent for service
- Franchise Tax Board
- Entity status letter (state tax exemption, good standing)
Mission
THE MISSION OF MARIN MONTESSORI SCHOOL, IN ADHERENCE TO THE PRINCIPLES OF THE ASSOCIATION MONTESSORI INTERNATIONALE (AMI) AS ENVISIONED BY DR. MARIA MONTESSORI, IS TO NURTURE THE DEVELOPMENT OF EACH CHILD IN OUR DIVERSE COMMUNITY TO HIS OR HER FULLEST POTENTIAL (CONT ON SCH O) AN INDEPENDENT, RESPONSIBLE, COMPASSIONATE, LEARNED INDIVIDUAL WHO THINKS CRITICALLY AND REALIZES CLEARLY HIS OR HER ROLE IN THE WORLD. THUS, OUR MISSION IS TO PROVIDE EDUCATION FOR LIFE.
Program accomplishments
- EDUCATIONAL PROGRAMS: STUDENTS ENTERING MARIN MONTESSORI SCHOOL WILL ENJOY A PROGRAM UNIQUELY DESIGNED TO MEET THE DEVELOPMENTAL NEEDS OF STUDENTS FROM AGE 18 MONTHS TO GRADE 9 THE SCHOOL SERVES 250 STUDENTS, BEGINNING AT THE TODDLER LEVEL, CHILDREN WILL ENJOY A MONTESSORI EXPERIENCE IN A SMALL GROUP SETTING. THE ENVIRONMENT HAS BEEN CAREFULLY PREPARED TO MEET THE UNIQUE NEEDS OF THIS AGE GROUP. PRIMARY CLASSROOMS OFFER A UNIQUE CLASSROOM STRUCTURE WITH CHILDREN STAYING IN THE SAME CLASS FOR THREE TO FOUR YEARS, UNTIL THEY COMPLETE THE FULL PRIMARY CYCLE, AND ARE READY TO CONTINUE ON TO OUR ELEMENTARY LEVEL. ELEMENTARY LEVEL CHILDREN HAVE BUILT A SOLID FOUNDATION OF SKILLS THAT CAN NOW BE USED TO EXTEND THE ALMOST LIMITLESS HORIZON OF AN ELEMENTARY CLASSROOM. THE FACTORS, COMBINED WITH THE LITERACY AND NUMERACY (CONT ON SCH O) DEVELOPED IN THE PRIMARY CLASSROOMS, NOW FORM THE SPRINGBOARD FOR THE IN-DEPTH RESEARCH AND EXPERIMENTATION WHICH HOLD SUCH AN INTEREST FOR THESE CHILDREN. THE FINAL STAGE OF THE MARIN MONTESSORI SCHOOL EXPERIENCE IS OUR JUNIOR HIGH PROGRAM DESIGNED TO MEET THE NEEDS OF STUDENTS AGED 12-15, THESE SCHOLARS BENEFIT FROM WORKING THE LAND AT THE ST. VINCENTS CAMPUS, AND CONTINUING TO LEARN IN ENVIRONMENTS SPECIALLY PREPARED FOR THESE ADOLESCENT YOUTH.Expenses $8,577,378 · grants $1,173,422 · revenue $10,320,163
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
- 94-1567656
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- School
- Donations deductible (Pub 78)
- Public charity, 50% deduction limit
- Exempt since
- 1964
- Accounting year ends
- June
- Files
- Form 990 or 990-EZ
- Category (NTEE)
- Education (B21Z)
- Assets (IRS master file)
- $29,496,747
- Income (IRS master file)
- $23,886,425
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | June 2025 | $12,570,256 | $11,663,200 | $29,496,747 | IRS |
| 990 | June 2024 | $14,068,015 | $11,077,912 | $30,734,157 | IRS |
| 990 | June 2023 | $10,789,468 | $10,301,946 | $27,591,353 | XML |
| 990 | June 2022 | $11,335,831 | $9,766,801 | $27,187,966 | IRS |
| 990 | June 2021 | – | – | – | 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 94-1567656).
Questions about MARIN MONTESSORI SCHOOL INC
- What is the EIN of MARIN MONTESSORI SCHOOL INC?
- The employer identification number (EIN) of MARIN MONTESSORI SCHOOL INC is 94-1567656.
- Is MARIN MONTESSORI SCHOOL INC tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1964.
- Are donations to MARIN MONTESSORI SCHOOL INC tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does MARIN MONTESSORI SCHOOL INC 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 MARIN MONTESSORI SCHOOL INC 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 MARIN MONTESSORI SCHOOL INC 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 MARIN MONTESSORI SCHOOL INC?
- The 990 for the year ended June 30, 2025 names SAM SHAPIRO.
- Who are the officers and directors of MARIN MONTESSORI SCHOOL INC?
- The 990 for the year ended June 30, 2025 lists 24 people; 10 received compensation from the organization, the highest $342,535 (SAM SHAPIRO, HEAD OF SCHOOL).
- How much revenue does MARIN MONTESSORI SCHOOL INC have?
- On its 990 for the year ended June 30, 2025 it reported revenue of $12,570,256, expenses of $11,663,200 and total assets of $29,496,747 at year end.
Other nonprofits in CORTE MADERA
- MARIN COUNTRY DAY SCHOOL EIN 94-1375791 · last filed 990 for 2025
- 5G EXPANDED LEARNING INC EIN 84-2027003 · last filed 990 for 2025
- TWIN CITIES PARENT EDUCATION GROUP EIN 94-6108486 · last filed 990 for 2025
- NEIL CUMMINS PARENT TEACHER ORGANIZATION EIN 36-4781717 · last filed 990-EZ for 2025
- COVE SCHOOL PARENT TEACHER ORGANIZATION EIN 35-2503277 · last filed 990-EZ for 2025
- FOUR FOLD BALANCE EIN 27-3818822 · last filed 990-N for 2025
- ATLAS INSTITUTE INC EIN 81-2622454 · last filed 990-N for 2023
- RAYMOND PHOENIX INSTITUTE EIN 30-0380693 · last filed 990-N for 2025