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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 Sierra Club Hamilton Leong

Hamilton Leong

Officer

Controller (Thru 11/16/20) at Sierra Club

Fiscal year ended December 31, 2020. Published on January 24, 2026.

$265,032
2020

Total compensation

Hamilton Leong has been listed as an employee of Sierra Club in Form 990 filings since at least fiscal year 2016. Total compensation for Hamilton Leong has increased by 34.8% from 2016 to 2020.

Annual compensation details

$265,032
+18.4%
Controller (Thru 11/16/20)
2020
$232k
50 hrs/wk
$34k
--
$223,835
+5.6%
Controller
2019
$193k
50 hrs/wk
$32k
--
$211,898
+3.9%
Controller
2018
$183k
50 hrs/wk
$30k
--
$203,931
+3.7%
Controller
2017
$176k
50 hrs/wk
$29k
--
$196,632
Assistant Treasurer/Controller
2016
$169k
50 hrs/wk
$28k
--

Total compensation by year

Compare the compensation of Hamilton Leong to:

Revisions to this profile

January 24, 2026:
2020 Sierra Club 990 published
January 24, 2026:
2019 Sierra Club 990 published
January 24, 2026:
2018 Sierra Club 990 published

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2020

Other employees at Sierra Club

Michael Brune
Executive Director
$352,558
$300,201 No related comp$52,357
Bruce Hamilton
National Policy Director
$266,652
$230,251 No related comp$36,401
Jennifer Trahan
Chief Operating Officer
$264,966
$223,312 No related comp$41,654
Patrick Gallagher
Legal Director
$262,683
$219,148 No related comp$43,535
Jesse Simons
National Program Director
$260,966
$221,138 No related comp$39,828
Maggie Kash
Chief of Communications
$256,253
$231,819 No related comp$24,434
Eva Hernandez-Simmons
Deputy National Program Director
$255,208
$211,745 No related comp$43,463
Lucy Mayo
Deputy Executive Director
$252,212
$230,444 No related comp$21,768
Mary Anne Hitt
Director Beyond COAL
$246,180
$214,211 No related comp$31,969