Dudek & Bock
John Sieracki, CPA, currently serves as the Chief Financial Officer at Dudek & Bock Spring Manufacturing Co since January 2024. Prior to this role, John Sieracki held various positions at Dudek & Bock from December 2008 to February 2024, including Accounting Manager, Cost Analyst, and Accounts Receivable. John Sieracki earned a Bachelor of Arts degree in Economics from Northern Illinois University between 2004 and 2008.
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Dudek & Bock
Dudek & Bock Spring Manufacturing Company is a leading manufacturer of custom springs, wireforms, metal stampings, and welded assemblies.