Their are alot of them.
Florida Gators
University of Southern California
LSU Over Ohio state
Michigan Wolverines
Lousiana State University beat Ohio St. University for the National Championship.
Ohio State, Wisconsin, and Georgia all shared a piece of the championship in 1942, depending on which polls you looked at.
Yes ... Troy won the NAIA national championship in 1968 and the NCAA Division II national championship in 1984 and 1987.
The Florida Gators defeated the Florida State Seminoles 52-20 to win the 1996 NCAA National Championship.
maybe this will help ...http://www.secsportsfan.com/top-all-time-ncaa-college-football-national-championship-conference.html
Texas
Pittsburgh