Citibank, N.A. is the primary banking subsidiary of financial services multinational Citigroup. Citibank was founded in 1812 as the City Bank of New York. Despite a merger with First National Bank in 1955, the bank had always been nicknamed "Citibank" so in 1976, First National City Bank was renamed Citibank, N.A.. Citicorp, the holding company for Citibank, is a subsidiary of Citigroup. Citigroup's global retail branch network, branded Citibank, has more than 4,600 global branches and holds more than $300B in deposits. Citibank is the 4th largest retail bank in the United States based on deposits.

Citigroup, Inc. (NYSE: C), or Citi, is an American multinational investment bank and financial services corporation and the third-largest banking institution in the United States. In 1998, Citigroup was founded after a merger between Citibank and Travelers Group. Citi has approximately 200 million customer accounts and does business in more than 160 countries and jurisdictions, providing corporations, governments, investors, institutions, and individuals with a broad range of financial products and services. They have an investment grade S&P rating of A+ and a long-term Moody’s rating of Aa3. They have a current market cap of $116.48B and a 2023 revenue of $79.49B. Company headquarters are in New York City, NY.