Considers the entrepreneurial career of the founder of Mitsubishi, Yataro Iwasaki, who built a large shipping company against the opposition of powerful Western incumbents. Although sometimes supported by the Japanese government, and often times opposed, the case identifies Iwasaki's entrepreneurial talent and organization-building skills as key drivers of success. This case provides a vehicle for examining the entrepreneurial factors behind Japan's remarkable transition from a feudal to a modern society in the second half of the nineteenth century.