What Grading Companies Accept MetaZoo Cards? Post author By Jody Mitoma Post date December 26, 2021 No Comments on What Grading Companies Accept MetaZoo Cards? MetaZoo HQ > What Grading Companies Accept MetaZoo Cards? Wondering where to grade your MetaZoo cards? MetaZoo cards are currently being accepted for grading and authentication by: PSA / Professional Sports Authenticator BGS / Beckett Grading Services CGC / Certified Guaranty Company – Announced Dec 2021 DSG / Diamond Service Grading HGA / Hybrid Grading Approach SGC / Sportscard Guaranty Corporation PCG / Premier Card Grading – Announced Dec 20, 2021