Sterling Infrastructure, Inc. operates through a variety of subsidiaries within three segments specializing in E Infrastructure, Transportation and Building Solutions in the United States, primarily across the Southern, Northeastern, Mid Atlantic and Rocky Mountain regions and the Pacific Islands. The E Infrastructure segment provides advanced large scale site development services and mission critical electrical services for data centers, semiconductor fabrication, manufacturing, distribution centers, warehousing, power generation and related facilities. The Transportation segment includes infrastructure and rehabilitation projects for highways, roads, bridges, airports, ports, rail and storm drainage systems. The Building segment encompasses residential and commercial concrete foundations for single family and multi family homes, parking structures, elevated slabs, other concrete work, plumbing services and surveys for new single family residential builds.

The company generates revenue primarily through fixed price and cost reimbursable contracts for construction and related services provided to public and private sector clients. In the E Infrastructure segment revenue comes from site development and electrical work for data centers, semiconductor plants, manufacturing facilities, distribution centers and power generation projects. The Transportation segment earns fees from highway, road, bridge, airport, port, rail and storm drainage improvement projects funded by federal, state and local authorities. The Building segment receives payments for residential concrete foundations, commercial foundations, parking structures, elevated slabs and plumbing services for new home builders and commercial developers. Revenue is recognized as work progresses or upon completion depending on the contract type, and the firm maintains a backlog of future work that supports visibility into future earnings.

The company operates through the following segments: E Infrastructure Solutions, Transportation Solutions and Building Solutions.

• E Infrastructure Solutions focuses on large scale site development and mission critical electrical services for data centers, semiconductor fabrication, manufacturing facilities, distribution centers, warehousing, power generation and related infrastructure projects.

• Transportation Solutions delivers infrastructure and rehabilitation work for highways, roads, bridges, airports, ports, rail lines and storm drainage systems, relying heavily on federal and state transportation spending.

• Building Solutions provides residential and commercial concrete foundations, parking structures, elevated slabs, other concrete work, plumbing services and surveys for new single family and multi family residential builds.

Sterling Infrastructure positions itself in the middle tier of the construction market, competing against both small regional contractors and large national and international firms while targeting projects that are too large for the former and too small for the latter. The company seeks to differentiate itself through disciplined bidding, strong project execution and a focus on high margin work such as mission critical electrical services and specialized infrastructure projects. Its competitive advantages include a diversified service portfolio across three segments, a growing backlog, a track record of improving margins in its historic heavy highway business and a strategy of pursuing accretive acquisitions to expand capabilities and geographic reach.

The company serves a diverse group of clients including data center operators, semiconductor manufacturers, e commerce distribution center operators, warehousing companies, power generators, state departments of transportation, regional transit authorities, airport and port operators, railroad agencies, leading national regional and custom home builders, and commercial developers and general contractors.