Certified Guaranty Company^® (CGC^®) revolutionized the comic book marketplace when it was founded in 2000 by providing clear, objective and impartial assessments of authenticity and grade. Today, CGC is the world's largest and most trusted third-party grading service for comics, trading cards, video games, home video, magazines, concert posters and related collectibles with more than 20 million collectibles certified since 2000.