STERLING INFRASTRUCTURE Business Summary

Sterling Infrastructure, Inc. (STRL) operates a specialized business model focused on high-margin, mission-critical infrastructure services, generating revenue through three primary segments: E-Infrastructure Solutions, Transportation Solutions, and Building Solutions. The E-Infrastructure segment serves as the company’s core growth engine, providing large-scale site development for data centers, e-commerce distribution hubs, and advanced manufacturing facilities. Transportation Solutions manages complex projects including highways, bridges, rail, and aviation infrastructure, while Building Solutions provides concrete foundations for residential and commercial developments. Strategically pivoting away from traditional low-bid civil work, Sterling positions itself as a premium specialty player in the digital and industrial economy. Its primary competitors include Quanta Services (PWR), EMCOR Group (EME), Primoris Services (PRIM), and AECOM (ACM), with Sterling maintaining a distinct market position characterized by superior operating margins and a concentrated focus on the physical infrastructure supporting AI and e-commerce. Founded in 1955 as Oakhurst Company by brothers James and Richard Manning, the firm evolved through decades of restructuring and a 1991 IPO to become a national infrastructure leader. The current executive team is led by CEO Joseph A. Cutillo, who brings over 30 years of industrial leadership experience from General Electric and Ingersoll-Rand. In July 2025, Nicholas Grindstaff assumed the role of Chief Financial Officer, bringing a 30-year pedigree in infrastructure finance that includes a significant 20-year tenure at Quanta Services. The leadership team also includes COO Daniel Govin and General Counsel Mark D. Wolf. Sterling is backed by a high concentration of institutional capital, with major stakes held by BlackRock, Vanguard, and FMR LLC, alongside notable individual shareholder Christopher H. B. Mills. The Board of Directors, chaired by Roger A. Cregg, features seasoned executives such as B. Andrew Rose and David Schulz, ensuring robust governance and strategic alignment with the company’s high-growth trajectory.