WEX Inc. revenue for the last year amounted to 2.55 B USD, the most of which — 1.38 B USD — came from its highest performing source at the moment, Mobility, the year earlier bringing 1.44 B USD. The greatest contribution to the revenue figure was made by United States — last year it brought WEX Inc. 2.19 B USD, and the year before that — 2.06 B USD.