Sumitomo Mitsui Trust Holdings is a major financial institution based in Japan, primarily engaged in banking and asset management services. It was formed through the merger of Sumitomo Trust and Banking and Mitsui Trust Holdings in 2011, creating one of the largest trust banks in the country. The company offers a wide range of services, including investment management, real estate services, and private banking. With a strong focus on customer service and innovative financial solutions, Sumitomo Mitsui Trust Holdings plays a significant role in Japan's financial landscape and serves both individual and corporate clients.