No. 578: Wm. Wrigley Jr., 48, Lake Forest, chewing gum, $2.2B

Wm. Wrigley Jr. Co.Mars, Inc.
Bill Wrigley, Jr., executive chairman and chairman of the board of the Wm. Wrigley Jr. Co., holds a press conference in April 2008 to announce the merger to Mars Inc. (Michael Tercha/Chicago Tribune)
Loading