Collectors Universe

75M Collectibles Certified

Collectors Universe has processed over 75 million cards and collectibles with a cumulative declared value of over a billion dollars.

About PSA

The Foundation of All Great Collections.

Professional Sports Authenticator (PSA) is the largest and most trusted third-party trading card authentication and grading company in the world. Since its inception in 1991, PSA has certified over 40 million cards and collectibles with a cumulative declared value of over a billion dollars.

PSA is a division of Collectors Universe, which has offices in California, New Jersey, Paris, Hong Kong, Shanghai and Tokyo.

As the only third-party grading service to offer a guarantee on its services, PSA has emerged as the clear leader in authentication and grading for trading cards and other collectibles.

40 Million+
Declared Value of
Collectibles Graded
$1 Billion+

PSA Milestones

Collectors Universe certifies 75 millionth collectible.
PSA opens office in Japan.
PSA certifies 30 millionth collectible.
Collectors Universe certifies 50 millionth collectible.
PSA Certifies 20 millionth collectible. Collectors Universe’s coin division, PCGS, opens offices in Hong Kong.
PSA certifies 10 millionth collectible.
PSA Population available online; over 3 million collectibles certified.
Collectors Universe, Inc. forms
PSA/DNA Autograph Authentication Services launch.
Professional Sports Authenticator (PSA) is born.

PSA Brand Promise

The PSA promise is to always provide impartial, experienced authentication and grading of cards and other collectibles.

The PSA promise is founded on these brand principles.


PSA provides added value to cards and collectibles through our leading hobby knowledge and consistent adherence to our grading standards.


PSA commits ongoing resources to ensure collectors that PSA-graded cards and collectibles are protected by leading anti-counterfeit features.


PSA provides unparalleled free access to market data, ensuring collectors can make informed grading, buying and selling decisions.

PSA Guarantee

The PSA Financial Guarantee of Grade & Authenticity is fundamental to PSA’s concept of third-party grading. The cash-back policy ensures the accuracy of the grade assigned to any PSA-graded card as long as the card remains in its tamper-evident holder. PSA guarantees that all cards submitted to it shall be graded in accordance with PSA grading standards and under the procedures of PSA.

Read more

Advanced Technology

PSA uses state-of-the-art, proprietary technology to provide security and protection for your collectibles.

PSA Grade Guarantee

PSA is the only third-party authentication and grading service to offer a financial guarantee on its services.

Standardized Grading

Every collectible graded by PSA uses the PSA 10-point grading scale, which has been accepted and supported industry-wide since 1991.


Customer information on each order is hidden from PSA graders to ensure the highest level of objectivity.

Grading Accuracy

PSA has multiple verification stages in its grading process, where orders are checked for accuracy and consistency in relation to PSA grading standards.

Encapsulation & Preservation

To reinforce its guarantee of authenticity and grade and protect your investment, collectibles graded by PSA are encapsulated in sonically sealed, tamper-evident holders.

PSA Board of Specialists

Jon Bahner
Senior Grader, Professional Sports Authenticator (PSA)
Specialty: Trading Card Grading
Rich Consola
Consultant Authenticator, PSA/DNA Authentication Services
Specialty: Elvis Autographs
Bill Corcoran
Authenticator, PSA/DNA Authentication Services
Specialty: Autographs
Al Glaser
Authenticator, Professional Sports Authenticator (PSA)
Specialty: Tickets
Steve Hart
Consultant, Professional Sports Authenticator (PSA)
Specialty: Unopened Material
Kevin Keating
Authenticator, PSA/DNA Authentication Services
Specialty: Autographs
Vince Malta
Authenticator, PSA/DNA
Specialty: Professional Model Bats
John Reznikoff
Consultant Authenticator, PSA/DNA Authentication Services
Specialty: Historical and Political Autographs
Reza Tabatabai
Director Of Grading, Professional Sports Authenticator (PSA)
Specialty: Trading Card Grading
John Taube
Authenticator, PSA/DNA
Specialty: Professional Model Bats
Steve Van Maanen
Assistant Director of Grading, Professional Sports Authenticator (PSA)
Specialty: Trading Card Grading
Henry Yee
Consultant Authenticator, PSA/DNA Authentication Services
Specialty: Photographs
Tom Poon
Authenticator, PSA/DNA Authentication Services
Specialty: Autographs


What our customers are saying about us.

The importance of grading and authentication in the marketplace cannot be overstated. The services offered by PSA allow everyone to ‘speak the same language’ and make the sale of items quick and easy. We often consult with non-collectors who are unaware of just how important grading and authentication is for the success of their items at auction, and we communicate to them that the investment is a wise and worthwhile one. We consistently notice a premium attached to items authenticated by PSA."

"For us and our clients on both sides of the transaction, utilizing the services of PSA is an important step in the process."

Brian Dwyer
President of Robert Edward Auctions

Frankly, third-party authentication and grading is everything. This is what allows me to acquire things with confidence...Every item that I own has been through that vetting process."

Thomas Tull
Collector, Founder/CEO of Legendary Pictures and Part Owner of the Pittsburgh Steelers

When I was buying cards, even as an adult in the early 1990s, they were not authenticated or graded, and it was up to you to inspect them as well as you possibly could. But you never knew with any confidence what you were buying and (if) someone may be scamming you. Now, as someone who has an investment of substantial dollars I would never think of acquiring a card that had not been authenticated and graded. PSA has become the ultimate deciders on giving official identity and value to a card. They provide a great service."

Ken Kendrick
Collector and MLB Owner of the Arizona Diamondbacks

The Hall of Fame and PSA and PSA/DNA have similar passions. We also have similar audiences – those who value the preservation of baseball history and the objects and artifacts that are associated with that history. We see the fans that collect cards and who have their own memorabilia collections come to Cooperstown with a tremendous respect for the preservation component of what we do. Our relationship with PSA and PSA/DNA has helped us give the fans the opportunity to connect with that love and passion. There is a great synergy between those who visit the Hall of Fame and those who collect and use the services of PSA and PSA/DNA. I think we serve a common audience very well."

Brad Horn
Senior Director for Communication and Education at the National Baseball Hall of Fame and Museum

It is not hyperbole to say that the PSA Set Registry is the greatest tool ever invented for the sport card hobbyist. From tracking, to population, to seeing where other collectors are, what's out there, what exists, what goals can be realistically set, what collectors are doing, trends – the Registry is the greatest gift ever given to the hobby."

Robert Casterline
Collector and Owner of a Football Card Collection on Display at the Pro Football Hall of Fame

Read more

Helpful Links

Here are some helpful links to help you better understand the benefits of PSA services.