slabbedGrading Companies for Collectibles
Third-party grading services authenticate and grade trading cards, coins, and comics, encapsulating them in tamper-evident holders called "slabs." Here are the major companies collectors trust.
Trading Cards
Sports cards, Pokemon, Magic: The Gathering, and other trading cards.
Professional Sports Authenticator
The world's largest and most trusted trading card grading service
Beckett Grading Services
Premium card grading with sub-grades for centering, corners, edges, and surface
Sportscard Guaranty Corporation
Premium card grading known for their iconic tuxedo-style holders
TAG Grading
AI-powered card grading with a precision 1000-point scale
Hybrid Grading Approach
Custom color-matched slabs with hybrid AI and human grading
Automated Grading Services
100% AI-powered card grading with 3D laser imaging and 8 subgrades
Premier Card Grading
Global card grading with locations across 5 continents
ARS Grading
Japan's premier card grading service for Pokemon and TCG collectibles
ACE Grading
Europe's leading card grading service with custom art labels
Coins
U.S. and world coins, tokens, and medals.
Numismatic Guaranty Company
The world's largest third-party coin grading service
Professional Coin Grading Service
The premier coin authentication and grading service since 1986
Comics
Comic books, magazines, and graphic novels.
What is Slab Grading?
Authentication
Grading companies verify that collectibles are genuine, not counterfeit or altered. Expert authenticators examine each item before it receives a grade. This protects buyers and sellers in the secondary market.
Grading
A numeric grade is assigned based on the item's condition — centering, corners, edges, surface quality, and overall eye appeal. Higher grades indicate better preservation and command higher market values.
Encapsulation
Graded items are sealed in tamper-evident plastic holders called "slabs." Each slab has a unique certification number that links to the item's grade and details, enabling instant verification by anyone.
Track your graded collection
Add slabs from any grading company. Snap a photo or enter a cert number — Slabbed handles the rest.
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