ACI Worldwide, Inc. revenue for the last year amounted to 1.45 B USD, the most of which — 685.91 M USD — came from its highest performing source at the moment, Billers, the year earlier bringing 629.41 M USD. The greatest contribution to the revenue figure was made by United States — last year it brought ACI Worldwide, Inc. 887.17 M USD, and the year before that — 851.71 M USD.