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Compensation 990 is an independent service that uses public IRS Form 990 filings as its source data. We clean and standardize this information, but the original filings may contain errors or omissions. Years on this site refer to the organization’s fiscal year end date on the filing.

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Employees West Side Montessori School Mimi Basso

Mimi Basso

OfficerTrustee/director

Head of School at West Side Montessori School

Fiscal year ended June 30, 2024. Published on January 25, 2026.

$530,809
2024

Total compensation

Mimi Basso has been listed as an employee of West Side Montessori School in Form 990 filings since fiscal year 2022. Total compensation for Mimi Basso has increased by 14% from 2022 to 2024.

Annual compensation details

$530,809
+8.8%
Head of School
2024
$454k org
40 hrs/wk
$78k other
--
$487,961
+4.8%
Head of School
2023
$433k org
40 hrs/wk
$56k other
--

Total compensation by year

Compare the compensation of Mimi Basso to:

2024

Other employees at West Side Montessori School

Matthew Bloom
Chief Financial Officer
$234,516
$180,745 from orgNo related comp$53,771 other
Amy Stoney
Operations Director
$196,848
$177,153 from orgNo related comp$19,695 other
Melissa Mack
Assoc HEAD
$195,699
$160,719 from orgNo related comp$34,980 other
Lisanne Pinciotti
Director of TEP
$190,344
$159,653 from orgNo related comp$30,691 other
Judy Lyons
Director of Administration
$158,811
$127,918 from orgNo related comp$30,893 other
Margot Mack
Assistant Teacher
$150,290
$121,096 from orgNo related comp$29,194 other
Gretchen Amberg Slack
Head Teacher
$149,423
$122,783 from orgNo related comp$26,640 other
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Revisions to this profile

January 25, 2026:
2024 West Side Montessori School 990 published
January 25, 2026:
2023 West Side Montessori School 990 published
January 25, 2026:
2022 West Side Montessori School 990 published

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$465,543
Head of School
2022
$414k org
40 hrs/wk
$52k other
--

Other people named Mimi Basso

2024
Employee
Mimi Basso
Independent Schools Admissions Association of Greater NY
$0
Board Member
Mimi Basso
The Browning School
$0