The American Express Company, also known as Amex, is an American multinational financial services corporation headquartered in New York City. The company was founded in 1850 and is one of the 30 components of the Dow Jones Industrial Average. The company is best known for its charge card, credit card, and traveler's cheque businesses.
In 2016, credit cards using the American Express network accounted for 22.9% of the total dollar volume of credit card transactions in the United States.
As of December 31, 2019, the company had 114.4 million cards in force, including 54.7 million cards in force in the United States, each with an average annual spending of $19,972.
American Express is the largest provider of traveler's checks in the world.
In 2005, American Express released the American Express Travelers Check Card, a stored-value card that serves the same purposes as a traveler's check, but can be used in stores like a credit card.
In 2017, Forbes named American Express as the 23rd most valuable brand in the world (and the highest within financial services), estimating the brand to be worth US$24.5 billion.
According to en.wikipedia