American Express

American Express Company, commonly known as Amex, is an American multinational financial-services and bank-holding corporation headquartered at 200 Vesey Street in the Battery Park City neighbourhood of Lower Manhattan, New York City. The company was founded in 1850 in Buffalo, New York as an express-mail business by Henry Wells, William G. Fargo, and John Warren Butterfield, and over more than 170 years has evolved into one of the world's largest payment-card issuers and global travel and financial-services networks.

American Express operates a closed-loop payments network and is one of the world's largest issuers of charge cards and credit cards by purchase volume, with brands including the American Express Green, Gold, Platinum, and Centurion charge cards, the Delta SkyMiles co-branded family, the Hilton Honors and Marriott Bonvoy co-brands, and the Business Platinum and Business Gold cards for small and mid-sized businesses. Adjacent products include American Express Travel, Membership Rewards, foreign-exchange and prepaid travel cards, merchant services and acquiring, business expense and B2B payments, banking products under American Express National Bank, and digital small-business platforms acquired through Kabbage.