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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 Steamfitters Local Union No 420 Jonathon McMahon

Jonathon McMahon

Officer

Executive Board Member at Steamfitters Local Union No 420

Fiscal year ended June 30, 2017. Published on January 24, 2026.

$625

2017

Total compensation

Jonathon McMahon has been listed as an employee of Steamfitters Local Union No 420 in Form 990 filings since fiscal year 2017.

Annual compensation details

$625

Executive Board Member

2017

$1k org

0.2 hrs/wk

Total compensation by year

Compare the compensation of Jonathon McMahon to:

2017

Other employees at Steamfitters Local Union No 420

Anthony Gallagher

Business Manager

$185,800 from orgNo related comp$134,285 other

Kevin F Heffernan

Financial Secretary and Treasurer

$152,197 from orgNo related comp$116,349 other

James P Walls III

Assistant Business Manager

$151,774 from orgNo related comp$116,223 other

$151,230 from orgNo related comp$116,059 other

$148,728 from orgNo related comp$115,309 other

Michael J Trofa

$148,655 from orgNo related comp$115,287 other

James P Gallagher

$148,502 from orgNo related comp$115,241 other

$148,304 from orgNo related comp$115,181 other

Edward A Kalicki

$148,017 from orgNo related comp$115,095 other

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January 24, 2026:

2017 Steamfitters Local Union No 420 990 published

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Other people named Jonathon McMahon

2017

Jonathon McMahon

The Steamfitters Local Union 420 Realty Inc.