M&A activity snapshot
Line, substation and grid-construction contractors sit on top of the largest capex cycle in the utility industry's history. Investor-owned utilities plan to invest $1.4 trillion through 2030, with 2026 capex projected to jump 17 percent to $238.8 billion. FMI sizes the electricity segment of U.S. utility services at roughly $90.8 billion in 2026, growing at an 8.2% CAGR to 2030.
Consolidation is further along here than in adjacent trades. FMI notes that national platforms are limited across water, fiber and gas, which are at earlier stages of consolidation compared to electric. Still, the base remains fragmented: 13,575 private establishments in NAICS 237130 in 2025, a count that includes telecom line builders.
The largest recent deal touched the edge of this vertical. Quanta paid approximately $1.54 billion upfront for Cupertino Electric, plus a potential earnout of up to $200 million, but Cupertino is mainly a data-center electrical contractor rather than a line builder. Quanta also acquired seven additional businesses in 2025, on top of Dynamic Systems.
Who is buying
Public strategics. FMI says the sector's M&A activity is largely driven by Quanta, Dycom and MasTec. They buy crews, geographic coverage and utility relationships they cannot hire fast enough.
Private equity, including PE-to-PE trades. Platforms built by one sponsor are now selling to the next. Apollo hybrid funds agreed to acquire a majority stake in PowerGrid Services from The Sterling Group, with Sterling and management staying invested. Sandbrook Capital, with funds managed by Blackstone Credit & Insurance, agreed to buy United Utility Services from Bernhard Capital Partners, and BCP closed the sale on March 2, 2026.
Growth and energy-transition investors. FMI's brief records a November 2025 growth investment by Lime Rock New Energy in Hawk Line Construction of Neosho, Missouri. These platforms are the most likely buyers for a regional contractor below the size the public strategics target.
What buyers look for
MSA coverage. Master service agreements turn utility maintenance and upgrade work into repeat volume. About 65% of MYR Group's T&D business is performed under MSAs, and MSAs made up 44% of Quanta's total backlog at year-end 2025. Quanta also notes that customers are generally not committed to specific volumes under those MSAs, so buyers test renewal history.
Safety record. Utilities screen contractors on it before they bid. MYR warns that if its safety record deteriorated it could become ineligible to bid on certain work. Expect requests for incident rates by year and evidence of compliance with OSHA's Subpart V construction standard and 1910.269 maintenance standard.
Crews. Labor is the binding constraint. BLS projects power-line installer employment to grow 10 percent from 2025 to 2035, with a median wage of $95,320. A contractor with trained foremen and a working apprenticeship pipeline is selling capacity, not just revenue.
Contract mix. Buyers separate fixed-price from cost-plus and unit-price work, and recurring work from storm events. MYR performed 34.3% of its 2025 T&D services under fixed-price contracts, and storm restoration was under 5% of revenue.
What makes a strong company
The contractors that draw platform interest typically show:
- Multi-year MSAs with more than one utility, co-op or municipal customer, with a record of renewals.
- No single customer dominant. For scale reference, Quanta's ten largest customers accounted for 30% of 2025 revenue; a small contractor will be more concentrated, but buyers price how much.
- Documented safety metrics. MYR publishes a 2025 TCIR of 0.92 and LTIR of 0.14 as a selling point; a target should be able to produce its own numbers.
- Owned or long-leased specialty equipment (digger derricks, bucket trucks, tensioners) with maintenance records.
- Storm revenue reported separately so normal-year earnings are clear.
- Foremen and general foremen who stay after the owner leaves.
Valuation and deal structure
There is no published lower-middle-market multiple for line or substation contractors. PowerGrid Services, United Utility Services and Hawk Line were all done at undisclosed prices. The figures that are public describe much larger businesses:
- Public peers. Delancey Street Partners' outsourced utility-services group (Centuri, Dycom, MasTec, MYR, Primoris, Quanta) traded at a 15.2x median EV/2025E EBITDA and 12.8x 2026 EBITDA as of December 31, 2025. Public multiples carry a liquidity and scale premium a private contractor does not receive.
- Adjacent electrical deals. The same report lists Sterling's purchase of CEC Facilities Group at 9.6x, Quanta's Dynamic Systems at 9.8x and EMCOR's Miller Electric at 10.8x EBITDA. These are data-center and building electrical targets, not line builders.
- Cupertino Electric. Quanta guided Cupertino to about $155 million to $175 million of 2024 adjusted EBITDA against $1.54 billion upfront, roughly 8.8x-9.9x by Axia's arithmetic, before a potential earnout of up to $200 million.
That Cupertino earnout reflects a common structure in the sector: part of the price is tied to post-close results. Sponsor-to-sponsor deals such as PowerGrid Services also show management staying invested alongside the new owner, so owners should expect rollover equity to come up. Owners can test a range with the valuation tool; Axia does not value businesses or represent sellers.
Outlook
Demand looks secure for the next 12-24 months. Utility capex is projected at $238.8 billion in 2026, and DOE estimates data centers could use 6.7% to 12% of U.S. electricity by 2028, up from about 4.4% in 2023. Federal grid money is smaller than headlines suggest: the GRIP program is $10.5 billion, but DOE reports more than $6 billion announced through its first two rounds.
The constraint is crews, not work. That favors contractors with trained linemen and utility MSAs, and it keeps strategics and sponsors bidding for them. The risk is pricing: with public peers at a 15.2x median, sellers may anchor too high, while private buyers still price small, concentrated contractors well below that.
See the parent Energy & Infrastructure Services M&A overview, and read why vertical-focused buyers find better deals.