Charles Schwab operates in brokerage, banking, and asset-management businesses. The company runs a large network of brick-and-mortar brokerage branch offices, a well-established online investing website, and has mobile trading capabilities. It also operates a bank and a proprietary asset management business and offers services to independent investment advisors. The company is among the largest firms in the investment business, with over $8 trillion of client assets at the end of 2021. Nearly all of its revenue is from the United States.