Introducing the Certified Guaranty Company

Certified Guaranty Company (CGC) is an independent member of the Certified Collectibles Group of companies.

The Certified Collectibles Group is an umbrella organization consisting of Numismatic Guaranty Corporation of America (NGC) the leading grading service in rare coins, Paper Money Guaranty (PMG), the leading currency certification service, and CGC, the first independent, impartial, expert third party grading service in comics and photographs.

Our certification companies have a proven and respected commitment to integrity, accuracy, consistency and impartiality in grading collectibles that has made them leaders in their fields. This proven model of success is ideally suited to adapt to the unique challenges of grading comic books.