Simpsons Illustrated led to the establishment of what comic book publishing company that was founded in 1993 by Matt Groening, along with Steve and Cindy Vance and Bill Morrison?
Simpsons Illustrated:  "Simpsons Illustrated" was published between 1991 and 1993 and led to the establishment of the Bongo Comics Group. Bongo Comics Group: Bongo Comics Group is a comic book publishing company founded in 1993 by Matt Groening along with Steve & Cindy Vance and Bill Morrison.
Bongo Comics Group