Kostecke CPA LLC Employee Directory

AccountingWisconsin, United States0-1 Employees

Kostecke CPA LLC is a sole practitioner accounting firm based in Appleton, Wisconsin, offering tax preparation and related small-business accounting services. Led by Jann Kostecke, the practice draws on a background that combines public accounting experience with roles in private industry, including time at Arthur Andersen & Co and Kimberly-Clark. 

Her experience across manufacturing, distribution, sales, marketing, research, and accounting services in domestic and foreign locations informs a client-focused approach that emphasizes personal service. The firm targets small businesses and individuals seeking help with tax and accounting needs, providing guidance as tax codes and regulations evolve. As a locally focused, independent CPA resource, the practice offers direct access to its sole practitioner for clients.

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