Nomura Securities
Resona was formed as the Osaka Nomura Bank in 1918. This entity served as the financing arm of the Nomura "zaibatsu" founded by Tokushichi Nomura. Its securities brokerage operation separated in 1926 to form Nomura Securities, now Japan's largest securities company. The bank was renamed Nomura Bank in 1927 and became the main bank for the Osaka Prefecture government in 1929, immediately following the 1929 stock market crash.