- American Numismatic Association Certification Service
- Renders an opinion on a coin's authenticity and grade.
- ASA-Accugrade
- Offering grading and authentication of sportscards, coins, memorabilia.
- Dominion Grading Service
- A collector-based grading service that accepts submissions from all collectors, not just registered dealers.
- Independent Coin Grading
- Authenticates, grades and encapsulates problem coins, tokens and medals that qualify for any level of general coin grading service currently provided.
- National Numismatic Certification, LLC
- An independent third-party coin grading service which does not buy or sell coins, nor appraise coins in terms of monetary value.
- Numismatic Coin Grading Service
- Primarily grades U.S. Minted coins.
- Numismatic Evaluation Service
- A coin grading service specializing in proof coins, uncirculated coins and circulated coins.
- Numismatic Guaranty Corporation
- Offers coin grading services, coin certification, and services for coin dealers.
- Robert Matthews Coin Authentication
- Offers a coin authentication service for british milled coins, examining coins and acting as an expert witness on counterfeit coins.
- Sovereign Entities Grading Service, Inc.
- Offers complete attribution and designation options.
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