• ANACS Coin Grading Services
• ASA Accugrade (ACG)
• Independent Coin Grading Company (ICG)
• Numismatic Guaranty Corporation (NGC)
• Numistrust
• Professional Coin Grading Service (PCGS)
• PCI Coin Grading Service
• David R. Sear Ancient Coin Certification Service (A.C.C.S.)
• Sovereign Entities Grading Service Inc. (SEGS)

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