International Sports Authentication has over twenty years experience working full-time in the sports cards industry, and has been grading cards on a daily basis for those same two decades. Our founder is one of the hobby’s foremost experts in the field of card grading, because he loves sports and collectibles and has devoted his life to the industry: “Every day is exciting because you never know what historic collectible may come into the office.”
ISA is proud of its user-friendly website and freely welcomes customer input and questions.
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Submit your sports cards and collectibles today! Learn how our process works and download our submission form.
Verify your item in our database. Enter your certificate number and we'll provide any associated data on record.
Visit our Collector's Blog for the latest hobby news & detailed information on how to spot counterfeit items.
Preserve your collection with the world-leading authentication service with great eye appeal and protection.
