Comics Guaranty
 Comics Guaranty LLC also known as CGC is a Sarasota Florida comic book grading service. CGC is an independent member of the Certified Collectibles Group of companies. It is the first independent and impartial third party grading service for comic books. The company was launched in early 2000 and has since gone on to become a notable part of the comic book collecting community. CGC's current President Mark Haspel (as of July 2008) is also the company's primary grader.