The Dai-ichi Kangyo Bank, Limited, abbreviated as DKB , was one of the largest banks in the world during the latter half of the 20th century. Dai-Ichi Kangyo Bank was created in 1971 by a consortium of two banks: Dai-Ichi Bank, Japan's oldest bank, and Nippon Kangyo Bank, a state financial institution that granted long-term loans to industry and agriculture.

The Fuji Bank, Limited was one of Japan's major banks during the post–World War II era. It combined with Dai-Ichi Kangyo Bank and the Industrial Bank of Japan in 2000 to form Mizuho Financial Group, and changed its name to Mizuho Corporate Bank in 2002 after transferring its retail banking operations to Mizuho Bank.