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 Mount Tamalpais School Gerald Guarriello

Gerald Guarriello

Highest compensated employee

Teacher at Mount Tamalpais School

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

$144,816

2024

Total compensation

Gerald Guarriello has been listed as an employee of Mount Tamalpais School in Form 990 filings since fiscal year 2024.

Annual compensation details

$144,816

Teacher

2024

$129k org

40 hrs/wk

$17k other

--

Total compensation by year

Compare the compensation of Gerald Guarriello to:

2024

Other employees at Mount Tamalpais School

$768,962 from orgNo related comp$202,405 other

Advancement Director

$222,540 from orgNo related comp$27,043 other

Finance and Operations Director

$176,161 from orgNo related comp$66,199 other

Nicholas Wilsey

Head of Middle School

$139,151 from orgNo related comp$28,194 other

Head of Lower School

$149,341 from orgNo related comp$16,064 other

$130,327 from orgNo related comp$15,070 other

Loading rankings…

Loading related profiles…

Revisions to this profile

January 25, 2026:

2024 Mount Tamalpais School 990 published

Get an email update when compensation for Gerald Guarriello is updated

Email address

Related Jobs

Powered by Talroo

Report a discrepancy →