Top U.S. Companies by Market Cap for the Electrical Work Industry
Industry: 1731 - Electrical Work Year:| Rank | Company | Revenue ($ millions) |
Assets | Market Cap Dec 16, 2025 |
|---|---|---|---|---|
| # 1 | Quanta Services Inc. | 23,673 | 18,684 | 64,751 |
| # 2 | Comfort Systems USA Inc. | 7,027 | 4,711 | 33,993 |
| # 3 | EMCOR Group, Inc. | 14,566 | 7,716 | 27,965 |
| # 4 | IES Holdings, Inc. | 2,999 | 1,265 | 8,821 |