Quanta Services builds and maintains the physical infrastructure that keeps electricity, telecommunications and pipeline networks running, employing large crews of skilled electrical and construction workers rather than manufacturing equipment itself. Its core business has benefited from utilities spending heavily to upgrade aging power grids and to connect new renewable energy projects, along with the broader push to expand transmission capacity to support growing electricity demand from data centers. Quanta has grown substantially through acquiring smaller specialty contractors over the years, building scale and geographic reach in an industry that remains fairly fragmented among many regional players. Because its revenue comes from labor-intensive project work rather than product sales, Quanta's growth is tied closely to how much capital utilities and infrastructure owners are willing to spend on grid modernization projects in a given year.