Giannini grew Bank of America into the world’s largest bank. Three years after surviving the San Francisco earthquake of 1906, Giannini’s banking operations expanded by opening its first branch in San Jose. He continued to open banks throughout California, consolidating operations in 1927. In 1928, Giannini set up a holding company called Transamerica and purchased banks throughout New York, Washington, Arizona, Oregon and Nevada. Giannini was a pioneer in offering consumer installment loans on real estate, used cars, and home repairs.