It was founded in 2000 and claims to be the first trust bank in Japan to be exclusively engaged in asset administration business.

[1] The company's shareholders are Mitsubishi UFJ Trust and Banking Corporation (46.5%), Nippon Life Insurance (33.5%), Meiji Yasuda Life Insurance (10%) and Norinchukin Trust & Banking Co.

[4] By the end of 2016, the Master Trust Bank of Japan had round about 4.9 percent of the Japanese advertiser Dentsu, Inc.[5] By the end of 2022, it holds circa 15.4 percent shares of Toyo Tires, worldwide according revenue the tenth biggest manufacturer of tires.

[6][7] Furthermore, it is with 10 percent biggest shareholder of the Japanese investment-company Softbank; last one was for example an early investor in the Chinese e-commerce-company Alibaba.

A month after its founding, it became the first Japanese asset administrator to offer online information reporting services.