Listed in this category are companies which for a price; grade, and encapsulate coins or currency.
A service that renders an opinion on a coin's authenticity and grade.
Ancient Coin Certification Service
David R. Sear provides an authoritative aid to collectors and dealers who are seeking both a valid attribution of their coins and confirmation of authenticity.
Independent Coin Grading Company
Offering blind submission through a CPA firm to eliminate submission bias.
Numismatic Guaranty Corporation of America
Submit most US and world coins for grading through an authorized member/dealer.
Accepts direct submittals from the general public, collectors and dealers.
Professional Coin Grading Service
Includes prices and descriptions of grading and authentication services.
Robert Matthews Coin Authentication
Specialises in the scientific examination and authentication of British milled coins.
Sovereign Entities Grading Service, Inc.
Grading and encapsulating service for U.S. coins, errors, and varieties.
Last update:April 29, 2013 at 9:23:17 UTC