William L. Zielinski, CPA Founder

Mr. Zielinski is the President and Founder of Zielinski Companies which was established in 1957. For over 55 years, he has led our nationally recognized firm in its specialty of providing financial, accounting, and management services to not-for-profit and religious organizations.

Mr. Zielinski offers extensive knowledge and understanding of business and accounting practices for nonprofit organizations. He is involved in the audit review process and presentations to clients on our audit, accounting, and tax services.

He is a graduate of Saint Louis University and has served on many bank and charitable organization boards.  Contact