From an initial five sides in 1983 the K-League has expanded its membership to the fifteen clubs in the competition today. Busan, Jeju and Pohang remain as the only three sides to have competed in every season of the K-League.
Former member and inaugural champions Hallelujah currently play in the National League along with the reincarnation of former K-League side Kookmin Bank. Hanil Bank, members from 1984-1986 still compete in the amateur ranks but Cheonbuk Buffalo folded after their sole season in the league and their place was taken by the current side from Jeolla province.
At present membership is by application only, and subject to meeting strict requirements in terms of operating structure and financial commitment. Plans to promote the National League champions of 2006 and 2007 faltered because the sides eligible for promotion, Goyang Kookmin Bank in 2006 and Ulsan Mipo Dockyard in 2007, opted against stepping up to the top division.
Use the links below to find out more about the present K-League members.

