Mizuho International Plc is a full-service brokerage firm headquartered in London, UK. The firm was founded in 2000 and is a wholly owned subsidiary of Mizuho Securities Co., Ltd., which is owned by Mizuho Financial Group, Inc. (TYO: 8411) in Japan. Mizuho International provides investment banking and securities market services to clients of the group of companies headed by Mizuho Financial Group.