Professional Sports Authenticator

Professional Sports Authenticator (PSA) is the largest third-party trading card authentication and grading company in the world.
==1991–2016==
==2016–present==
Professional Sports Authenticator 2016 (Print).svg|Print variant
Professional Sports Authenticator 2016 (Alt).png|Alternate variant 
Professional Sports Authenticator 2016 (25 Years).png|25th anniversary 
==External links==
Category:Cards
Category:Sports
Category:Trading cards
Category:Card grading companies
Category:International
Category:Santa Ana, California
Category:California
Category:United States
Category:1990s
Category:1991