Citibank is founded as the City bank of New York in 1812 and is considered as of the important international banks. Citigroup is considered as one of the largest companies in the world and Citibank is the consumer baking arm of financial services of this company. Citibank was rated as the largest bank in the United States in March 2007.  The territories of Citibank are spread all around the world with 1400 offices. The bank is operating in more than 100 countries mostly in New York City, Los Angeles, Philadelphia, Houston, Dallas, San Francisco/Silicon Valley, Boston, Washington and Miami metropolitan areas. More than half of the total offices of Citibank are present in United States. 

Citibank provides credit card, investment products, insurance and standard banking transactions to the customers all over the world. Their online services division is considered as the most successful division of the bank and claims of serving 15 million users. Citibank was rescued by the U.S government when it had global financial crisis and huge loses in the value of its subprime mortgage assets. The name of the bank was changed in 1935 to The First National City Bank of New York, then again changed to First National City Bank in 1952. In 1888, USD certificates of deposit were introduced in London. This introduction marketed the first new negotiable instrument in the market. The Citibank created First National City Charge Service credit card in 1967 to become the part of Master Charge which is now named as MaterCard. This card is popular as “The Everything Card”. This card was marketed as a kind of East Coast version of the Bank Americard.  

In the mid of 1970s, the bank was renamed as Citibank under the leadership of CEO Walter Wriston. The rename of bank also helped to decrease the confusion in Ohio with Cleveland based National City Bank. The bank also launched Citi Cards which helps the customers to perform all the transactions without any passbook. Bank was one of the U.S banks which allowed customers to get any information about their account without a bank teller through one line display terminals. Automatic teller machines offered 24 hour access to accounts. Customers could use their Citi Cards to withdraw cash and make deposit when automatic teller machines were not introduced. Bank made a contract with 7 eleven to put Citibank automatic teller machines in more than 5500 stores of the U.S, in April 2006. 

In 1960s the bank was introduced by credit card business and in 1965 the bank bought Carte Blanche from Hilton Hotel but after three years First National City Bank was compelled to sell this division. In 1969, company took decision to join Master Charge because it was too expensive to promote as an independent brand. From 1977 to 1987, the Citibank tried to create Choice card, a separate credit card brand. 

In 1984, the bank became a founding member of the CHAPS clearing house in London. In the same year John S. Reed was elected as CEO. Under his leadership, bank made a great progress and became the largest bank in the United States for the next fourteen year. Citibank was considered as the largest issuer of credit cards and charge cards in the world and also expanded its global reach to over 90 countries. In April 2006, the bank planned to sell all of its Buffalo and Rochester New York branches. Therefore, over the period of time Citibank actually appeared as one of the innovative banks in the world.