I'm leaning heavily toward Nomura Securities Co. Ltd.

Nomura is a financial services group and global investment bank. Based in Tokyo and with regional headquarters in Hong Kong, London, and New York, Nomura employs about 26,000 staff worldwide. It operates through five business divisions: retail (in Japan), global markets, investment banking, merchant banking, and asset management.

Established December 25, 1925 in Osaka, it is the oldest brokerage firm in Japan. It is named after its founder Tokushichi Nomura II, a wealthy Japanese stockbroking tycoon. Boasting the largest shares in all business divisions within the Japanese market and uncompelled as the top leading securities firm in Japan, the company is nicknamed "Gulliver". Nomura Securities operates in Asia. In the USA it is known as Nomura Securities International and in EMEA it is Nomura International plc.

[link to en.wikipedia.org]

[link to www.nomura.com]