MasTec announced Tuesday it will acquire Superior Group for $1.65 billion in cash and stock, securing one of the few electrical contractors with scale to wire hyperscale data centers. The infrastructure engineering firm is buying execution capacity, not revenue multiples.

Superior Group specializes in high-voltage electrical work for mission-critical facilities. MasTec already holds contracts with Amazon Web Services, Microsoft, and Meta for site preparation and civil work. This acquisition moves the firm upstream into the electrical systems that determine whether a data center can actually draw power from the grid. Without guaranteed electrical capacity, land is decorative.

The timing reflects a structural problem in hyperscale construction. Data center permits now routinely specify 100 to 300 megawatts of electrical demand per facility. U.S. utilities are adding generation capacity at roughly 20 gigawatts annually, while AI-driven data center demand is growing at 30 gigawatts per year through 2027 according to grid operator projections. Electrical contractors who can navigate utility interconnection queues and deliver substation work are now the bottleneck, not the concrete or steel. MasTec is buying a contractor that already has relationships with regional utilities and a backlog of approved interconnection projects. Superior's existing pipeline becomes MasTec's competitive moat.

The deal structure matters. Cash-and-stock signals MasTec expects Superior's management to stay and execute through the integration. Electrical contracting is a relationship business with municipal utilities and regional grid operators. Acquiring the Rolodex without the team accomplishes nothing. The stock component aligns incentives through the 18-to-24 month utility approval cycles that govern when these projects can actually energize.

Allocators should watch three follow-on signals. First, MasTec's next earnings call in late October will clarify how much of Superior's backlog is tied to signed hyperscaler contracts versus speculative builds. Second, competing electrical contractors—EMCOR, Quanta Services—will face pressure to consolidate or risk losing access to the hyperscaler RFP shortlists. Third, utility interconnection wait times in Northern Virginia, Phoenix, and Dallas—the three largest U.S. data center markets—are now averaging 36 months. Any contractor who can compress that timeline by six months commands pricing power.

MasTec's acquisition cost works out to roughly 8.5x trailing EBITDA if Superior's margins match peer electrical contractors. That multiple makes sense only if MasTec believes it can redeploy Superior's crews across its own hyperscaler contracts and bill at integrated-services rates instead of subcontractor rates. The arbitrage is in the margin expansion, not the revenue growth.