The surge in AI-driven data center construction is redefining the U.S. building trades labor market, forging an unprecedented alliance between construction unions and major technology companies while intensifying pressure on workforce pipelines, modular build strategies, and job-site safety standards.
Building trades unions-long regarded as the voice of the American worker-are now deeply intertwined with the world's largest technology companies. Unionized workers are employed on a large share of massive data center projects as unions scramble to recruit new apprentices to meet explosive demand. The shift is driven by AI infrastructure investment at a scale the industry has not seen in decades.
Background
Data center construction accounted for approximately 1% of U.S. gross domestic product in the first quarter of 2025, according to a report by the Apollo Academy. By 2030, U.S. data center construction spending is projected to exceed $112 billion, according to Engineering News-Record. The data center workforce shortage has become the single biggest constraint on construction and operations in 2026, surpassing even power availability and land access.
North America's Building Trades Unions reported a record number of members and apprentices in 2025. Organization president Sean McGarvey compared the growth to the building trades' expansion in the 1950s, attributing it to data centers, power plants, and infrastructure legislation under former President Joe Biden.
Details
Data centers now consume at least 40% of work hours logged by members of the Columbus-Central Ohio Building and Construction Trades Council, according to official Dorsey Hager. For the International Brotherhood of Electrical Workers (IBEW) Local 26 in the Washington, D.C., metro area, that figure is at least 50%, spokesperson Don Slaiman stated.
National unions have negotiated labor agreements on major projects, including an Oracle and OpenAI Stargate campus in Michigan and the "Project Blue" data center campus in Arizona. OpenAI CEO Sam Altman stated in a March 2026 joint statement with North America's Building Trades Unions: "Across the country, highly skilled union construction workers are laying the foundation for the AI economy." Google said the majority of labor used to build its data centers is unionized and pointed to a $10 million grant to a union-backed electricians training program it said would expand the electrician workforce pipeline by 70%.
According to Axios, OpenAI estimates that reaching its infrastructure goals will require approximately 20% more skilled trades workers than currently exist in the workforce. The company has committed $1.5 million over five years to support workforce training and recruitment initiatives led by the Building Trades.
The labor gap is already affecting project delivery. JLL reported in 2025 that 40% of North American data center construction projects experienced schedule slippage of three months or more, with labor cited as the primary cause in 60% of those cases. Turner & Townsend's 2024 cost data shows labor premiums of 15% to 20% above pre-2022 baselines on major data center jobs.
Modular and volumetric construction is emerging as a partial mitigation strategy. General contractors are establishing centralized manufacturing facilities where skilled workers can build complex elements for multiple data centers, then deliver them to project sites-an approach that dramatically reduces the number of specialty workers needed at each location. By shifting construction to a factory environment, contractors can offer consistent work at a fixed location with a stable workforce that can be upskilled, while cutting average development cycles from up to five years to 18-24 months for a first facility, according to Eaton's EMEA data center segment leader Juan Colina.
Safety remains a critical variable at this pace of build-out. The scale and speed of modern data center projects-often exceeding $1 billion in value and involving more than 2,000 skilled tradespeople-drive a host of risks, including extreme electrical complexity requiring advanced isolation and lockout/tagout controls throughout commissioning and construction, according to Engineering News-Record. Lack of training, unclear safety protocols, and the presence of multiple contractors can escalate on-site risks, with resource constraints meaning less-experienced workers may face unfamiliar exposures and a higher likelihood of incidents.
Outlook
Construction activity is expected to dominate the workforce profile, peaking around 2026-2027, while long-term operations employment expands as new facilities come online through 2030, according to a November 2025 forecast from the Hamm Institute. McKinsey's 2024 analysis estimates that meeting AI infrastructure plans through 2030 will require more than double the current U.S. technical workforce. Industry observers note that the training agreements and union-tech partnerships now taking shape will set workforce development benchmarks that could be replicated across other heavy-industry construction sectors facing similar skilled-labor constraints.
