Sterling Infrastructure, Inc. operates through a variety of subsidiaries within three segments specializing in E-Infrastructure, Transportation and Building Solutions in the United States. It serves Southern, Northeastern, Mid-Atlantic and Rocky Mountain regions and the Pacific Islands. E-Infrastructure Solutions provides advanced, site development services and electrical services for data centers, semiconductor fabrication, manufacturing, distribution centers, warehousing, and power generation. Transportation Solutions includes infrastructure and rehabilitation projects for highways, roads, bridges, airports, ports, rail and storm drainage systems. Building Solutions include residential and commercial concrete foundations for single-family and multifamily homes, parking structures, elevated slabs, other concrete work, plumbing services, and surveys for new single-family residential builds. The principal geographic market for the Company’s residential business is Texas.