» 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.    http://www.pagat.com/ipcs/

» 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.    http://www.52plusjoker.org/

» Chicago Playing Card Collectors, Inc.    Club devoted to sharing the knowledge and enjoyment of collecting playing cards of all kinds.    http://www.cpccinc.org/

» English Playing Card Society    Organization in the service of collectors of playing cards, card games and related ephemera.    http://www.wopc.co.uk/epcs/index.html