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.