 HOUSTON, Aug. 5, 2021 PRNewswire -- Quanta Services, Inc. NYSE: PWR today announced results for the three months ended June 30, 2021. Revenues in the second quarter of 2021 were 3.00 billion compared to revenues of 2.51 billion in the second quarter of 2020, and net income attributable to common stock was 117.0 million, or 0.81 per diluted share, in the second quarter of 2021 compared to net income attributable to common stock of 73.9 million, or 0.52 per diluted share, in the second quarter of 2020. 