Are Teenage Mutant Ninja Turtles dc or marvel?

The Teenage Mutant Ninja Turtles are neither DC nor Marvel; they were created by Kevin Eastman and Peter Laird and first appeared in their own comic book published by Mirage StudiOS in 1984. While they have crossed over with various characters from both comic book universes in different media, they remain independent characters. The franchise has expanded into animated series, movies, and merchandise, but its origins lie outside the major comic book publishers.