Amadeo Pietro Giannini, also known as Amadeo Peter Giannini or A. P. Giannini was an American banker who founded the Bank of Italy, which eventually became Bank of America. Giannini is credited as the inventor of many modern banking practices. Most notably, Giannini was one of the first bankers to offer banking services to middle-class Americans, mainly Italian immigrants, rather than only the upper class. He also pioneered the holding company structure and established one of the first modern trans-national institutions.

San Francisco, officially the City and County of San Francisco, is a commercial, financial, and cultural center in Northern California. With a population of 808,437 residents as of 2022, San Francisco is the fourth most populous city in the U.S. state of California. The city covers a land area of 46.9 square miles at the end of the San Francisco Peninsula, making it the second-most densely populated large U.S. city after New York City and the fifth-most densely populated U.S. county, behind only four New York City boroughs. Among the 92 U.S. cities proper with over 250,000 residents, San Francisco is ranked first by per capita income and sixth by aggregate income as of 2022.