Data Center Megaproject Backlog

Data center megaproject construction has crossed from emerging opportunity to material structural driver of backlog and strategic M&A across 12 of 22 tracked companies, with 84 discrete mentions concentrated in Q3 2026 versus zero prior cycle. The language shift from 'we see opportunity' to 'data centers are our primary growth driver' and explicit backlog quantification (DY $1.259B; STRL $6B+; EME $17.14B record; J $28.4B I&AF up $6.2B YoY) reflects that hyperscaler and colocation capital deployment has moved from pipeline conversation to awarded contract execution. Three structural indicators confirm this is not cyclical: (1) strategic acquisitions (MTZ closed Superior Group for data center electrical; PWR acquired Phalcon for Northeast data center MEP capacity; EME deployed $700M post-period for electrical contractor consolidation), (2) dedicated division launches (GVA created standalone data center division, scaled CAP from $65M to $223M in 12 months targeting 10%+ of revenue by 2027), and (3) scope expansion beyond core discipline (TTEK moved from engineering-only to power/water supply; STRL projects expanding 5-12 year revenue tails; PWR confirming $300M per-site MEP burn outside backlog). The threshold language shift is STRL's Q2 disclosure that mission-critical work including data centers represents 92% of E-Infrastructure signed backlog—this marks the categorical pivot from diversified bidding to concentrated supply exposure. Most tellingly, Jacobs' AI data center work reaching 11% of adjusted net revenue (up 100 bps QoQ) with backlog doubled and pipeline tripled, extending visibility 2-3 years forward, signals this is not a transient project cycle but a structural multi-year capital deployment wave. KBR's continued silence on data center exposure despite its engineering footprint is notable for absence.