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Third Party Grading Companies Active Companies CGC - Comics Guaranty, LLC PGX - Professional Grading eXperts LLC (aka PGA, aka CGG) AACC - The Authenticity, Certification & Grading Committee of the American Association of Comicbook Collectors PCE - Pacific Comic Exchange PMC - Paper Mountain Comics grading service Defunct Companies ACE - Accurate Comic Evaluators LLC PCC - Pop Culture Certified 3PG - 3rd Party Grading LLC

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