Compensation 990
OrganizationsEmployeesBoard MembersGrantsContractorsTop RankingsPricing

Stay updated on 990 organization compensation

© 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
Organizations Education The Cornerstone School

The Cornerstone School

Fiscal year ending 2025. Filed on December 16, 2025.

146 High Street
Stratham, New Hampshire 03885

The Cornerstone School (EIN: 22-2730159) has filed an IRS Form 990 since fiscal year 2021. In its fiscal year 2025 IRS Form 990 filing, The Cornerstone School, a 501(c)(3) charitable organization, reported compensation for 1 out of 46 total employees. Among the employees shown here, the average compensation is $144,000. The highest compensated employee at The Cornerstone School is Peter Zetlan with fiscal year 2025 compensation of $144,000.

Revenue, expenses, and employee compensation

Revenue

$2,890,588

Expenses

$2,697,681

Employee compensation

$2,087,719
Revenue, expenses, and employee compensation over time

Reported Compensated Employees

Peter Zetlan
Head of School
$144,000
$140,000 No related comp$4,000

Benchmark Employee Compensation

Non-Employee Board Members

Aaron Peters
Board Chair
Alexandra Hampton
Director
Anne Ruozzi
Director
Burcu Rubini
Director
Chris Yonker
Director
Corey Ostman
Treasurer
Erin Garnett
Director
Jeff Zwillenberg
Director
Joanna Jaskolka
Secretary
Josh Henly
Director
Julie Kukenberger
Vice Chair
Mike Rainboth
Director

Mission Statement

TO PROVIDE MONTESSORI EDUCATION TO CHILDREN AGES 15 MONTHS TO 14 YEARS OLD

Other organizations also named The Cornerstone School

Cornerstone Schools of Alabama Inc.
Birmingham, Alabama
Cornerstone Schools of Washington DC Inc.
Washington, District of Columbia
Cornerstone School of Summit Inc.
Summit, New Jersey
Cornerstone Schools Association
Detroit, Michigan
Cornerstone Schools Inc.
Jacksonville, Florida
Cornerstone School at Pedregal Bstr Club
Rancho Palos Verdes, California

Revisions to this organization profile

December 16, 2025:
2025 The Cornerstone School 990 filed
November 13, 2024:
2024 The Cornerstone School 990 filed
November 14, 2023:
2023 The Cornerstone School 990 filed

Get an email when new compensation information is released for The Cornerstone School

Be the first to know when new IRS Form 990 data is published for this organization.

Related Jobs

View more jobs
Powered by Talroo
Report a discrepancy →