Five9, Inc. revenue for the last year amounted to 910.49 M USD, the most of which — 910.49 M USD — came from its highest performing source at the moment, Cloud Software, the year earlier bringing 778.85 M USD. The greatest contribution to the revenue figure was made by United States — last year it brought Five9, Inc. 812.71 M USD, and the year before that — 702.21 M USD.