The story
The company opened in Baltimore in 1937 as W. B. Doner & Co. It was founded by Wilfred "Brod" Doner. Doner died in 1990 at the age of 75 and the company later dropped the initials from its name. The company is an independent advertising agent and has long been one of the largest. After a fire destroyed its office in Southfield in 1996, it re-emerged as an international company and expanded its reach to clients outside of the United States.
In April 2012, Doner sold a minority interest to MDC Partners.
From Wikipedia’s article on Doner Company, shared under CC BY-SA 4.0.4