Utility System Construction NAICS 2371

        Utility System Construction

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Industry Summary

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.


Recent Developments

Jul 16, 2025 - Budget Reconciliation Law to Reduce Clean Energy Investment
  • Renewable energy industry insiders expect the tax and policy bill signed into law in early July by President Trump to reduce clean energy investments, according to The Wall Street Journal. The Biden-era Inflation Reduction Act created 30% tax credits for renewable energy projects, either on the development side with Investment Tax Credits (ITC) or for producing clean energy with Production Tax Credits (PTC). The credits were to remain available until 2032. The legislation signed in July sunsets the ITC and PTC for wind and solar projects five years early in 2027. The new law also requires projects to have higher levels of US-derived content and increases restrictions on content from foreign entities of concern (FEOC). Princeton University’s REPEAT Project estimates the new law will reduce US electricity and clean fuels production by $500 billion over the next decade.
  • Solar’s share of US electricity generation is expected to grow in 2025 and 2026, according to the US Energy Information Administration’s (EIA) Short Term Energy Outlook. For the summer of 2025, solar is projected to generate 124 billion kilowatt hours (kWh) of power, up 34% compared to the June-September period in 2024. By summer 2026, the EIA expects solar capacity to expand by 34% to 147 billion kWh. The Short Term Energy Outlook forecasts natural gas generation will drop 4% in 2025 amid higher fuel prices but will rise 2% in 2026.
  • Since the beginning of 2025, nearly $15.5 billion in clean energy investments have been cancelled, closed, or scaled back, according to a report released in late June by clean energy advocacy nonprofits E2 and the Clean Economy Tracker. Many of the cutbacks came in anticipation of the Trump administration’s goal to claw back some tax credits created during the Biden administration. Clean energy projects have also faced other headwinds, including inflation, high interest rates, and supply chain snarls that affected project timelines, according to The Wall Street Journal. The E2 and the Clean Economy Tracker report said about $450 million was invested in May across five states for solar, EV, grid enhancements, and transmission equipment, but those investments come well short of offsetting the value of project cancellations.
  • At the recent Transmission and Interconnection Summit sponsored by Infocast, regional grid operators CAISO, ERCOT, MISO, and SPP said they planned to invest billions of dollars to expand electricity transmission infrastructure, according to PV Magazine. Much of the need for transmission investment is driven by anticipated load growth. However, transmission growth is also needed to bring more low-cost renewable energy to the grid. In 2023, the US Department of Energy estimated that a clean grid would require 54,500 gigawatt-miles of additional inter-region transmission capacity. One summit speaker noted operators are committed to building a larger grid that can accommodate renewables additions, reduce costs for ratepayers, and withstand extreme weather and larger loads.

Industry Revenue

Utility System Construction


Industry Structure

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 64% and 59% of the segment's total revenue, respectively. The water and sewer segment is more fragmented with the 50 largest firms representing just 20% 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.

                      Industry Forecast

                      Industry Forecast
                      Utility System Construction Industry Growth
                      Source: Vertical IQ and Inforum

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