American Express Co. revenue for the last year amounted to 54.83 B EUR, the most of which — 25.47 B EUR — came from its highest performing source at the moment, United States Consumer Services, the year earlier bringing 22.34 B EUR. The greatest contribution to the revenue figure was made by United States — last year it brought American Express Co. 42.71 B EUR, and the year before that — 38.68 B EUR.