Tundra Publishing was a Northampton, Massachusetts-based comic book publisher founded by Kevin Eastman in 1990. The company was founded to provide a venue for adventurous, creator-owned work by talented cartoonists and illustrators. Its publications were noted in the trade for their high production values, including glossy paper stock, full-color printing, and square binding. Tundra was one of the earlier creator-owned companies, before the formation of Image Comics and Dark Horse Comics' Legends imprint.

Mirage Studios was an American comic book company founded in 1983 by Kevin Eastman and Peter Laird in Dover, New Hampshire. The company was best known for the Teenage Mutant Ninja Turtles (TMNT) comic book series and the subsequent franchise it has spawned.