Quanta Services, Inc. revenue for the last year amounted to 20.88 B USD, the most of which — 9.70 B USD — came from its highest performing source at the moment, Electric Power, the year earlier bringing 8.94 B USD. The greatest contribution to the revenue figure was made by United States — last year it brought Quanta Services, Inc. 17.91 B USD, and the year before that — 14.39 B USD.