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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 Engineers & Scientists of Cal Local 20 Ifpte AFL-CIO & CLC Adolfo F Riedel

Adolfo F Riedel

Highest compensated employee

Union Representative at Engineers & Scientists of Cal Local 20 Ifpte AFL-CIO & CLC

Fiscal year ended December 31, 2021. Published on January 25, 2026.

$188,567
2021

Total compensation

Adolfo F Riedel has been listed as an employee of Engineers & Scientists of Cal Local 20 Ifpte AFL-CIO & CLC in Form 990 filings since fiscal year 2020. Total compensation for Adolfo F Riedel has increased by 0.8% from 2020 to 2021.

Annual compensation details

$188,567
+0.8%
Union Representative
2021
$157k
40 hrs/wk
$32k
--
$187,094
Union Representative
2020
$157k
40 hrs/wk
$31k
--

Total compensation by year

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Revisions to this profile

January 25, 2026:
2021 Engineers & Scientists of Cal Local 20 Ifpte AFL-CIO & CLC 990 published
January 24, 2026:
2020 Engineers & Scientists of Cal Local 20 Ifpte AFL-CIO & CLC 990 published

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2021

Other employees at Engineers & Scientists of Cal Local 20 Ifpte AFL-CIO & CLC

Joshua Sperry
Union Representative
$218,893
$188,526 No related comp$30,367
Francisco Preciado
Executive Director
$214,531
$177,298 No related comp$37,233
John Ward
Union Representative
$188,875
$156,748 No related comp$32,127
Nancy Ostrowski
SR Union REP
$188,556
$155,921 No related comp$32,635
Linda Shipley
General Counsel
$183,420
$151,587 No related comp$31,833
Wei-Ling Huber
ASST EXE Director
$182,266
$151,917 No related comp$30,349
John Mader
President
$36,131
$36,131 No related compNo other comp
Joel Foster
Secretary and Treasurer
$20,508
$20,508 No related compNo other comp
Joan Mah
Vice President Optometri
$15,042
$15,042 No related compNo other comp

Other people named Adolfo F Riedel

2021
Board Member
Adolfo Riedel
The Charles Armstrong School
$0