About CCG

About Certified Collectibles Group (CCG)

Expert Authentication, Grading and Conservation of Collectibles.

The Certified Collectibles Group (CCG) is a set of independent third-party companies focused on the expert authentication, grading and conservation of collectibles.

The Certified Collectibles Group (CCG) is the world’s leading provider of expert, impartial and tech-enabled services that add value and liquidity to collectibles. The CCG companies include Numismatic Guaranty Company (NGC), Paper Money Guaranty (PMG), Certified Guaranty Company (CGC) and Authenticated Stamp Guaranty (ASG). Since 1987, the CCG companies have certified over 80 million coins, banknotes, comic books, trading card games, sports cards, video games, home video, stamps, estate items and related collectibles. Today, CCG serves the world of collectibles online and at its offices in the United States, United Kingdom, Germany and China.

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