Stifel Financial Corp is a diversified financial services company based in Saint Louis, Missouri, offering a wide range of services including wealth management, investment banking, and retail and commercial banking. Founded in 1890, it caters to individual investors, corporations, municipalities, and institutions both in the U.S. and internationally. Stifel operates through segments such as Global Wealth Management and Institutional Group, providing everything from financial planning and securities transactions to advisory services on mergers and acquisitions. It also offers comprehensive banking services, highlighting its role as a one-stop financial solutions provider.