Professional Coin Grading Service (PCGS)

Founded in 1986, Professional Coin Grading Service (PCGS) is one of the world’s most respected third-party coin grading companies. PCGS authenticates, grades, encapsulates, and certifies coins using industry-recognized standards designed to promote consistency and confidence in the numismatic marketplace. Its online population reports, price guides, and certification verification tools are widely used by collectors, dealers, and investors.

Established in 1987, Numismatic Guaranty Company (NGC) is one of the world’s leading independent coin grading and authentication services. NGC certifies coins from the United States and around the world while providing professional grading, encapsulation, population reports, certification verification, and educational resources. Millions of coins have been certified by NGC and are actively traded throughout the global numismatic market.

Founded in 2007, Certified Acceptance Company (CAC) originally specialized in evaluating already-certified coins from PCGS and NGC, awarding its well-known green and gold approval stickers to coins that met or exceeded strict quality standards for their assigned grade. In recent years, CAC expanded into full-service coin grading and authentication, providing independent grading while continuing its reputation for identifying premium-quality coins.

Founded in 1972, ANACS is the oldest third-party coin authentication and grading service in the United States. Originally established by the American Numismatic Association to combat counterfeit coins, ANACS later became an independent grading company offering authentication, grading, encapsulation, and attribution services for United States and world coins. It remains a respected name within the numismatic community.

Founded in 1998, Independent Coin Graders (ICG) is an independent third-party grading company providing authentication, grading, and encapsulation services for United States and world coins. ICG also certifies tokens, medals, and other numismatic items, offering collectors and dealers an additional independent grading option within the marketplace.