Mizuho Financial Group (みずほフィナンシャルグループ Mizuho Finansharu Gurūpu), established in January 2003, is one of the largest financial services companies in the world. Its main headquarters are in the Marunouchi district of Tokyo, Japan. Although MHFG itself has only 350 employees, it holds assets in excess of ¥1.5 trillion. Its most important daughter corporations are Mizuho Bank and Mizuho Corporate Bank, which, together, form the world's largest banking firm.