English Playing Card Society
Organization in the service of collectors of playing cards, card games and related ephemera.

Chicago Playing Card Collectors, Inc.
Club devoted to sharing the knowledge and enjoyment of collecting playing cards of all kinds.

52 Plus Joker
The American Antique Deck Collectors Club is for those interested in antique playing card decks and for collectors playing card decks of all sorts.

The International Playing-Card Society
Members range from beginners through to expert in their fields with all aspects of playing-card activities, represented-games, players, collectors and those interested in the historical aspects of playing-cards.