About CGC

CGC set the standard for third-party comic book, magazine, lobby card and vintage photograph grading. CGC performs expert pressing, restoration and restoration removal services for comic books.

Certified Guaranty Company

Founded in 2000, Certified Guaranty Company (CGC) is the world’s first independent and impartial third-party comic book grading service. CGC’s commitment to integrity, accuracy and consistency has made it the leader in its field. The grading standards developed by CGC for comic books, magazines, lobby cards and vintage photographs are widely accepted by collectors and dealers. Certification by CGC gives buyers and sellers greater confidence and has been instrumental to the growth of the hobby.