Citigroup Inc. is a global financial services company headquartered in New York City. It provides a wide range of financial products and services, including banking, investment, and wealth management. Citigroup operates in more than 100 countries, serving millions of customers, from individuals to large corporations. Founded in 1998 through the merger of Citicorp and Travelers Group, Citigroup has grown to become one of the largest financial institutions in the world. The company is known for its extensive network of branches and ATMs, as well as its innovative digital banking solutions.