Organizations Employees Board Members Grants Contractors Top Rankings Pricing

Stay updated on 990 organization compensation

© 2026 Civic Register LLC

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.

About•Report a discrepancy•Your privacy choices

Employees West Side Montessori School Gretchen Amberg Slack

Gretchen Amberg Slack

Highest compensated employee

Head Teacher at West Side Montessori School

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

$149,423

2024

Total compensation

Gretchen Amberg Slack has been listed as an employee of West Side Montessori School in Form 990 filings since fiscal year 2024.

Annual compensation details

$149,423

Head Teacher

2024

$123k org

40 hrs/wk

$27k other

--

Total compensation by year

Compare the compensation of Gretchen Amberg Slack to:

2024

Other employees at West Side Montessori School

$453,477 from orgNo related comp$77,332 other

Chief Financial Officer

$180,745 from orgNo related comp$53,771 other

Operations Director

$177,153 from orgNo related comp$19,695 other

$160,719 from orgNo related comp$34,980 other

Lisanne Pinciotti

Director of TEP

$159,653 from orgNo related comp$30,691 other

Director of Administration

$127,918 from orgNo related comp$30,893 other

Assistant Teacher

$121,096 from orgNo related comp$29,194 other

Loading rankings…

Loading related profiles…

Revisions to this profile

January 25, 2026:

2024 West Side Montessori School 990 published

Get an email update when compensation for Gretchen Amberg Slack is updated

Email address

Related Jobs

Powered by Talroo

Report a discrepancy →