The key players

Heritage Auctions is the largest general collectibles auction house in the world and handles significant sports memorabilia alongside cards, coins, and other categories. Goldin Auctions has built the strongest position specifically in premium sports cards and memorabilia. PSA is the largest authentication and grading company. JSA specialises in autograph authentication

Beckett handles both grading and authentication. MEARS Authentication is the specialist for game-used equipment. Fanatics Authentic is the largest source of certified contemporary athlete signings. The National Sports Collectors Convention, held annually in the United States, is the largest gathering in the hobby.

CollectorGrade take

Heritage and Goldin are the venues where significant memorabilia trades at market prices with the strongest buyer protection available. For any major purchase, the platforms matter as much as the item.