C

Citigroup Inc. is a global diversified financial services holding company that offers banking, credit cards, securities, and wealth management products to individuals, corporations, governments, and institutional investors. Its operations are organized into segments that include institutional banking and markets, treasury and trade solutions, consumer banking and credit cards in the United States, and wealth management for high‑net‑worth clients. The firm operates in the financial services sector, specifically within diversified banking, and maintains a worldwide presence in roughly 180 countries, making it one of the largest cross‑border banks and a prominent player in both consumer and institutional finance. Notable characteristics include its extensive global network, a broad product portfolio spanning deposits, loans, trading, and advisory services, and its role as a major issuer of U.S. credit cards.