Utility System Construction

The 17,800 utility system construction firms in the US are specialty contractors that develop buildings, structures, and distribution networks associated with water, sewer, petroleum, gas, power, and communication systems. Firms provide new construction, reconstruction, rehabilitation, and repair services. Companies may specialize in a utility sector or offer services across multiple utilities.

Difficult Work Site Conditions

Utility construction projects can involve complex site conditions, including difficult to reach terrain and underground locations.

Seasonality and the Weather

Seasonal demand for utility system construction services creates uneven cash flow.

Sep 18, 2026 - Transformer Factory Targets US Supply Shortage

• Connecticut-based GameChange Energy is building a 300,000-square-foot factory in India that is expected to supply about 75% of its transformer output to US customers, Engineering News-Record reports. The facility is designed to produce up to 150 medium- and large-power transformers annually, with production scheduled to begin in early 2028. A study commissioned by the US Department of Energy found that procurement of large transformers can take 2.5 to 3 years, and as long as 5 years, for extra-high-voltage units. Additional transformer manufacturing capacity could eventually ease a major equipment bottleneck for electric utility projects. However, the planned production startup means contractors may continue facing lengthy lead times in the near term.
• Power construction spending increased 6.5% in July from a year earlier, even as total US construction spending fell 3.8%, according to an Associated General Contractors of America analysis of federal data. AGC said power, data center, and highway projects were the primary areas supporting construction activity, although the association cited worker shortages, tariffs, and other risks to continued growth. Rising power-sector spending can support demand for contractors that build electric generation, transmission, distribution, and related infrastructure. However, labor and material constraints could make staffing projects and maintaining margins more difficult as activity expands.
• The Environmental Protection Agency is moving to eliminate major federal greenhouse gas limits on coal- and natural gas-fired power plants, according to The New York Times. The action would repeal requirements for fossil fuel plants to use emissions-reduction measures, although environmental groups and Democratic-led states have indicated that legal challenges are expected. Changes to federal emissions requirements could affect utilities' decisions about extending existing generating plants or developing new generation. For utility system contractors, shifts in power-sector investment could affect demand for generation facilities, transmission connections, pipelines, and other supporting infrastructure. However, the ultimate effects will depend in part on litigation and future utility planning.
• The US Department of Transportation has proposed allowing transportation rights-of-way to support transmission lines, fiber-optic cables, and other utility infrastructure through its America's Great Corridors of Commerce initiative. State transportation departments and railroads could lease space along roads and tracks to private-sector corridor managers responsible for developing and operating infrastructure. The department plans to select up to five initial priority corridors. Using existing rights-of-way could create new utility construction opportunities while reducing the need to acquire private property, potentially helping transmission and communications projects move more quickly from planning into construction.

Industry size & Structure

The average utility construction firm employs 34 workers and generates about $11.4 million in annual revenue; the average water and sewer line construction firm employs 15 workers and generates $4 million annually; the average oil and gas pipeline construction firm employs 103 workers and generates about $27 million annually; and the average power and communication line construction firm employs 44 workers and generates about $12-13 million annually.

• The utility system construction industry consists of about 17,800 companies that employ 602,800 workers and generate about $158 billion annually.
• • The oil and gas pipeline segment and the power and communications segment are concentrated at the top with the 50 largest firms representing 57% of total revenue for both segments. The water and sewer segment is more fragmented with the 50 largest firms representing just 19% of the segment's total revenue.
• The utility system construction industry includes several large players with national to near-national scope, regional firms, and many small independent firms that often serve as subcontractors to larger firms and operate within a limited geographical market.
• Large companies include MasTec, Dycom Industries, and Granite Construction. Some large firms have international operations.