William L. Zielinski, Founder 1926-2021

William L. Zielinski founded Zielinski Companies in 1957.

For over 55 years Mr. Zielinski led our firm, offering his extensive knowledge and understanding of business and accounting practices to both employees and clients.

His excitement for his role in supporting the mission of his special clients inspired hundreds of employees over the years. Under his leadership, Zielinski Companies grew from a small accounting firm to an internationally-recognized provider of financial, planning, and management services to religious communities and nonprofit organizations worldwide.

William L. Zielinski passed away on October 3, 2021 at the age of 95.