West Side Montessori School
We prepare children to be resilient, creative and independent problem solvers. We are leaders in teaching montessori principles and incorporate the best practices of modern early childhood education in our classrooms.West Side Montessori School is a vibrant, collaborative community of passionate teachers, joyful children and engaged parents. Our diverse community is a reflection of the city in which we live.
West Side Montessori School at a glance
In short: West Side Montessori School gave $10K across 1 grant in 2025 (avg $10K), mostly in New York. Source: 2025 IRS Form 990.
- Annual giving (2025)
- $10,000
- +0.0% vs 2024
- Grants made (2025)
- 1
- +0.0% vs 2024
- Average grant
- $10,000
- +0.0% vs 2024
- Median grant
- $10,000
- Total assets
- $51,804,798
- +35.2% vs 2024
- Primary geography
- New York (100% of itemized 2025 grant dollars)
- Latest 990 filing
- Form 990, 2025 View filing
Data from IRS Form 990, 2025; updated September 2026.
Who West Side Montessori School funds
How this funder distributes its grants
Top Recipients
Top recipient in 2025
The largest 2025 recipient was Brick Church School ($10K).
Grant Size Distribution
2 grants across all recorded years
The most common grant size was under $50K: 2 grants of 2 (100%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of the 2025 grant dollars on its one itemized grant.
States
Cities
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2024 to 2025, annual grant giving ranged from $10K (2024) to $10K (2025). In 2025 it made 1 grant totaling $10K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Brick Church School New York, NY | Educational Programming | $10,000 |
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Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Net Investment Income |
|---|---|---|---|---|---|---|
| 2025 | $51,804,798 | $15,094,740 | $15,254,442 | $10,000 | 1 | $668,839 |
| 2024 | $38,306,732 | $12,664,529 | $13,391,460 | $10,000 | 1 | $530,671 |
| 2023 | $37,420,941 | $11,284,083 | $11,752,766 | — | — | $217,083 |
| 2022 | $34,513,067 | $10,367,667 | $10,616,513 | — | — | $665,464 |
| 2021 | $36,738,175 | $12,617,803 | $10,250,637 | — | — | $3,133,835 |
About West Side Montessori School
Based on IRS filings
West Side Montessori School is a public charity, based in New York, NY. IRS filing data is available from 2021 through 2025. As of 2025, the organization holds $51.8M in total assets. In 2025, it awarded 1 grant totaling $10K. Net investment income was $669K.
Leadership & Key People
Officers and directors from IRS filings
West Side Montessori School is led by Nikki Chase-Levin, President since 2025 (on filings since 2021); 8 of 32 officers listed in 2025 are compensated.
Officers on the 2025 filing
Nikki Chase-Levin
President
Director → Trustee, 2023
Trustee → President, 2025
On filings since 2021
2 hrs/week
No compensation reported
Lisanne Pinciotti
Director of Tep
On filings since 2021
40 hrs/week
$138K (2021) → $167K (2025)
Amy Stoney
Director of Operations
On filings since 2023
40 hrs/week
$143K (2023) → $193K (2025)
Katherine Fordney
Educational Director
New on the 2025 filing
40 hrs/week
$144K (2025)
Elizabeth Martorella
Trustee
Parent Representative → Director, 2022
Director → Trustee, 2023
On filings since 2021
2 hrs/week
No compensation reported
Steven Han
Trustee
Director → Trustee, 2023
On filings since 2021
2 hrs/week
No compensation reported
Christina Wang
Trustee
Director → Trustee, 2023
On filings since 2022
2 hrs/week
No compensation reported
Kurt Miller
Trustee
Director → Trustee, 2023
On filings since 2022
2 hrs/week
No compensation reported
Ankur Keswani
Trustee
On filings since 2023
2 hrs/week
No compensation reported
Charlene Su
Trustee
Parent Representative → Trustee, 2025
On filings since 2023
2 hrs/week
No compensation reported
Geoffrey Karapetyan
Trustee
On filings since 2023
2 hrs/week
No compensation reported
Michael Capilouto
Trustee
On filings since 2023
2 hrs/week
No compensation reported
Yasmin Nozari
Trustee
On filings since 2023
2 hrs/week
No compensation reported
Annie Kim
Trustee
On filings since 2024
2 hrs/week
No compensation reported
Avner Husen
Trustee
On filings since 2024
2 hrs/week
No compensation reported
Julia Emanuel
Trustee
On filings since 2024
2 hrs/week
No compensation reported
Alex Wasch
Trustee
New on the 2025 filing
2 hrs/week
No compensation reported
Elizabeth Tyndell
Trustee
New on the 2025 filing
2 hrs/week
No compensation reported
Greg Feldman
Trustee
New on the 2025 filing
2 hrs/week
No compensation reported
John Frederick Thye
Trustee
New on the 2025 filing
2 hrs/week
No compensation reported
Kristin Crawford
Trustee
New on the 2025 filing
2 hrs/week
No compensation reported
Matthew Bloom
CFO
On filings since 2021
40 hrs/week
$122K (2021) → $185K (2025)
Melissa Mack
Associate Director
Associate Head → Associate Director, 2025
On filings since 2021
40 hrs/week
$136K (2021) → $165K (2025)
Mimi Basso
Head of School
On filings since 2022
40 hrs/week
$414K (2022) → $472K (2025)
Nadine Carroll
Associate Head of School
Director → Trustee, 2023
Trustee → Associate Head of School, 2025
On filings since 2022
40 hrs/week
$158K (2025)
Gretchen Amberg Slack
Head Teacher
On filings since 2024
40 hrs/week
$123K (2024) → $136K (2025)
Dana Bliss
Vice President
Director → Trustee, 2023
Trustee → Vice President, 2025
On filings since 2021
2 hrs/week
No compensation reported
Iva Mills
Vice President
Chair → President, 2023
President → Vice President, 2025
On filings since 2021
2 hrs/week
No compensation reported
Scott Li
Treasurer
Director → Treasurer, 2023
On filings since 2021
2 hrs/week
No compensation reported
Tenille Pham Shelton
Secretary
Director → Secretary, 2023
On filings since 2021
2 hrs/week
No compensation reported
Ellie Burrows Gluck
Parent Representative
On filings since 2024
4 hrs/week
No compensation reported
Jordan Blitzer
Parent Representative
New on the 2025 filing
4 hrs/week
No compensation reported
Former officers (27)
- Former: Jennifer Conway (2021–2024) — Trustee
- Former: Joseph Gilbert (2021–2024) — Trustee
- Former: Kelly Opdyke (2021–2024) — Trustee
- Former: Margot Mack (2021–2024) — Assistant Teacher
- Former: Mary Pat Dowhy (2021–2024) — Trustee
- Former: Myles Amend (2021–2024) — Vice President
- Former: Nigelan Laqua Williamson (2021–2024) — Trustee
- Former: Judy Lyons (2022–2024) — Director of Administrator
- Former: Lilian Kim (2022–2024) — Trustee
- Former: Marguerite McNicoll (2022–2024) — Trustee
- Former: Laura Basmadjian (2023–2024) — Trustee
- Former: Jf Thye (2024) — Trustee
- Former: Mariajose Delgado (2024) — Trustee
- Former: Donna Lovell (2023) — Head Teacher
- Former: Joe Gilbert (2023) — Trustee
- Former: Maria Jose Delgardo (2023) — Parent Representative
- Former: Melissa Silvestri (2023) — Faculty Representative
- Former: Gillian Weindling (2021–2022) — Director
- Former: Karen Deinzer (2021–2022) — Head Teacher
- Former: Loren De Nicola (2021–2022) — Associate Head
- Former: Mort Haque (2021–2022) — Treasurer
- Former: Natasha Kazmi (2021–2022) — Director
- Former: Tim Daileader (2021–2022) — Vice Chair
- Former: Victoria Feltman (2021–2022) — Director
- Former: Jing Wang (2021) — Director
- Former: Kelly West (2021) — Director
- Former: Mary D Basso (2021) — Head of School
Data from IRS Form 990 filings, 2021–2025. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.
Compensation Overview
From 2025 IRS filing
The highest reported compensation on the 2025 filing was $472K, to Mimi Basso (Head of School). 8 officers or directors reported compensation on that filing.
Frequently asked questions about West Side Montessori School
How much does West Side Montessori School give each year?
West Side Montessori School gave $10K across 1 grant in 2025, according to its 2025 IRS Form 990. In 2024 it gave $10K across 1 grant.
How large is West Side Montessori School?
West Side Montessori School reported $51.8M in total assets on its 2025 IRS Form 990. Its revenue that year was $15.1M.
Where does West Side Montessori School operate?
West Side Montessori School has awarded grants in New York.
What is West Side Montessori School's EIN?
West Side Montessori School's EIN (Employer Identification Number) is 13-1992185. IRS Form 990 filing data is available on this page for 2021–2025.
Data last updated September 2026. Sourced from IRS Form 990 filings.
Data update history
(3)
When this profile's IRS filing data changed on Grantable
- Updated Form 990 for fiscal year 2024 (received by the IRS December 23, 2024)
- Updated Form 990 for fiscal year 2025 (received by the IRS January 15, 2026)
- IRS filings on file for fiscal years 2021–2025
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More Funders in New York
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West Side Montessori School down — hundreds of funders to go?