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About PSA

PSA is the industry leader in third-party authentication and grading of sports and non-sports cards and collectibles, providing multiple levels of service.

Since '91

PSA is the foremost authentication and grading authority for trading cards and memorabilia globally with over 65 million items certified since its establishment in 1991.

Today, backed by leading expertise and the industry’s best customer guarantee, more collectibles are submitted to PSA than any other grading service.

A division of Collectors Universe, Inc., the company is headquartered in Southern California with offices in New Jersey, Paris, Hong Kong, Shanghai, Tokyo, Toronto, Frankfurt and London.

Value Finds Its Form

Find us wherever collectables are admired and acquired.

Instant Credibility

Authentication makes for smooth transactions. No pretenders, no surprises.

Increased Rarity

Condition matters, and a high PSA grade can add both scarcity and value.

Market Liquidity

PSA-certified items outsell the field in most sales and auctions.

The PSA Guarantee

The PSA Authenticity and Grade Guarantee is fundamental to PSA's reputation as the leading third-party authentication and grading service.

Subject to certain exceptions, the Guarantee assures the accuracy of the grade assigned to any PSA graded card as long as it remains in its tamper-evident holder. Full terms and conditions apply.

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Good to Know

Grading Standards

Explore numerical scales and more to see how PSA sets the standard for collectors.

What We Grade

Trading cards, packs, autographs, signed memorabilia, photography and beyond.

Cert Verification

Each PSA-graded item is chronicled and can be easily accessed to confirm validity.

Press Center

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