The Wm. Wrigley Jr. Company, known as the Wrigley Company, is an American chewing gum company founded on April 1, 1891, by William Wrigley Jr., based in the Global Innovation Center (GIC) in Goose Island, Chicago, Illinois.  It is wholly owned by Mars, Incorporated. It is currently the largest manufacturer and marketer of chewing gum in the world.

Info gleaned from Wikipedia