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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 International Union of Operating Engin Local 139 Steve Buffalo

Steve Buffalo

Officer

Financial Secretary at International Union of Operating Engin Local 139

Fiscal year ended December 31, 2023. Published on January 25, 2026.

$257,538
2023

Total compensation

Steve Buffalo has been listed as an employee of International Union of Operating Engin Local 139 in Form 990 filings since fiscal year 2018. Total compensation for Steve Buffalo has increased by 12.7% from 2018 to 2023.

Annual compensation details

$257,538
+3.3%
Financial Secretary
2023
$173k org
40 hrs/wk
$85k other
--
$249,285
+2.3%
Financial Secretary
2022
$169k org
40 hrs/wk
$81k other
--

Total compensation by year

Compare the compensation of Steve Buffalo to:

2023

Other employees at International Union of Operating Engin Local 139

Terrance McGowan
President/Busines Mgr
$289,228
$204,450 from orgNo related comp$84,778 other
Shane Griesbach
Recording Secretary
$257,483
$172,705 from orgNo related comp$84,778 other
Dan Sperberg
Vice President
$256,724
$171,946 from orgNo related comp$84,778 other
Mark Gauf
Treasurer
$256,336
$171,558 from orgNo related comp$84,778 other
Aaron Raab
Executive Board Member
$228,448
$144,127 from orgNo related comp$84,321 other
Michael Ervin
Organizing Director
$228,029
$143,709 from orgNo related comp$84,320 other
Shaun McHugh
Trustee
$227,700
$143,379 from orgNo related comp$84,321 other
Dennis Batt
Pipeline Director
$227,652
$143,332 from orgNo related comp$84,320 other
Allan Fogel
Trustee
$215,087
$131,223 from orgNo related comp$83,864 other
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Revisions to this profile

January 25, 2026:
2023 International Union of Operating Engin Local 139 990 published
January 25, 2026:
2022 International Union of Operating Engin Local 139 990 published
January 25, 2026:
2021 International Union of Operating Engin Local 139 990 published

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Other people named Steve Buffalo

2023
Employee
Steve Buffalo
Operating Engineers Local 139 Health Benefit Fund
$257,538
Board Member
Steve Buffalo
Wisconsin Operating Engineers Skill Improvement and Apprenticeship Fund
$0
Board Member
Steve Buffalo
Labor Management Cooperation Trust of the Operating Engineers Local 139
$0