Co-Founder of Ill.-based Mueller Passes

Bill Kaun

Bill Kaun

William A. “Bill” Kaun, a founding partner of Elgin, Ill.-based Mueller & Co. LLP (FY12 net revenue of $10.4 million), 86, passed away on May 24th at Presence Saint Joseph Hospital. He is survived by his wife of 63 years, Julia, and his children, Glenn Kaun and Gail Kaun. Kaun was a man of few words, but his actions and leadership in building the CPA firm headquartered here left a lasting legacy for firm employees, clients and the Elgin community.

In 1968, Kaun and his partners co-founded Mueller & Co. LLP to serve the region’s growing base of small- to medium-sized businesses, local municipalities and not-for-profit organizations. Having served in both World War II and the Korean War, Kaun applied his leadership skills in developing accounting and financial services for clients not offered by traditional accounting firms at the time.

“Bill was instrumental in creating our controllership department, where we would provide part-time controllers to our clients that had limited staff and resources,” says David Nissen, Mueller’s current MP, who was a young CPA under Kaun in the mid-1980s. “It was a very innovative service offering at the time and helped us expand our other services to clients. And along with another partner Bill developed our pathfinder financial planning and investment services offerings, which eventually evolved into our current Mueller Financial Services department.”

Kaun retired from Mueller in 1990 but continued to leave a lasting mark on the firm as it grew to become one of the top 20 accounting firms in Chicago. “We would not be the firm we are today if not for Bill’s vision, determination, and entrepreneurship,” says Nissen.

Memorials may be made to St. Jude Children’s Research Hospital or the Guide Dog Foundation.