CRH plc, together with its subsidiaries, provides building materials solutions in Ireland and internationally. It operates through four segments: Americas Materials Solutions, Americas Building Solutions, Europe Materials Solutions, and Europe Building Solutions. The company provides solutions for the construction and maintenance of public infrastructure and commercial and residential buildings; and produces and sells aggregates, cement, readymixed concrete, and asphalt, as well as provides paving and construction services. It also manufactures, supplies, and delivers solutions for the built environment in communities across North America; and offers building and infrastructure solutions serving complex critical utility infrastructure, such as water, energy, transportation, and telecommunications projects, and outdoor living solutions for enhancing private and public spaces. In addition, the company combines materials, products, and services to produce a wide range of architectural and infrastructural solutions for use in the building and renovation of critical utility infrastructure, commercial and residential buildings, and outdoor living spaces for the built environment. Further, it produces and supplies precast and pre-stressed concrete products comprising floor and wall elements, beams, vaults, pipes, and manholes; granite, limestone, and sandstone; concrete and polymer-based products, such as underground vaults, drainage systems, utility enclosures, and modular precast structures; engineered steel, polymer-based anchoring, fixing, and connecting solutions; concrete masonry, hardscape and related products, including pavers, blocks and curbs, retaining walls, and slabs; and fencing and railing systems, composite decking, lawn and garden products, and packaged concrete mixes. The company was founded in 1936 and is headquartered in Dublin, Ireland.

Martin Marietta Materials, Inc., a natural resource-based building materials company, supplies aggregates and heavy-side building materials to the construction industry in the United States and internationally. It offers crushed stone, sand, and gravel products; ready mixed concrete and asphalt; paving products and services; and Portland and specialty cement for use in the infrastructure projects, and nonresidential and residential construction markets, as well as in the railroad, agricultural, utility, and environmental industries. The company also produces magnesia-based chemicals products; dolomitic lime primarily to customers for steel production and soil stabilization; and cement treated materials. Its chemical products are used in flame retardants, wastewater treatment, pulp and paper production, and other environmental applications. The company was founded in 1939 and is headquartered in Raleigh, North Carolina.

Summit Materials, Inc. operates as a vertically integrated construction materials company in the United States and Canada. It operates in three segments: West, East, and Cement. The company offers aggregates, cement, ready-mix concrete, asphalt paving mixes, and concrete products, as well as plastics components. It also provides asphalt paving and related services. In addition, the company operates municipal waste, construction, and demolition debris landfills; and liquid asphalt terminals. The company serves the public infrastructure, and residential and nonresidential end markets. Summit Materials, Inc. was founded in 2009 and is headquartered in Denver, Colorado.

Eagle Materials Inc., through its subsidiaries, manufactures and sells heavy construction materials and light building materials in the United States. It operates in four segments: Cement, Concrete and Aggregates, Gypsum Wallboard, and Recycled Paperboard. The company engages in the mining of limestone for the manufacture, production, distribution, and sale of Portland cement, including Portland limestone cement; grinding and sale of slag; and mining of gypsum for the manufacture and sale of gypsum wallboards used to finish the interior walls and ceilings in residential, commercial, and industrial structures, as well as well as containerboard and lightweight packaging grades; manufacture and sale of recycled paperboard to the gypsum wallboard industry and other paperboard converters; the sale of readymix concrete; and mining and sale of aggregates, such as crushed stone, sand, and gravel. Its products are used in commercial and residential construction; public construction projects to build, expand, and repair roads and highways; and repair and remodel activities. The company was formerly known as Centex Construction Products, Inc. and changed its name to Eagle Materials, Inc. in January 2004. Eagle Materials Inc. was founded in 1963 and is headquartered in Dallas, Texas.

Knife River Corporation, together with its subsidiaries, provides aggregates- led construction materials and contracting services in the United States. It operates through Pacific, Northwest, Mountain, Central, and Energy Services segments. The company mines, processes, and sells construction aggregates, including crushed stone and sand, and gravel; and produces and sells asphalt and ready-mix concrete. It also provides contracting service, such as heavy-civil construction, asphalt and concrete paving, and site development and grading. In addition, the company sells cement, merchandise, and other building materials and related services. The company sells its construction materials to public and private-sector customers, including federal, state, and municipal governments, as well as industrial, commercial and residential developers, and other private parties; and provides its contracting services to public-sector customers for the development and servicing of highways, local roads, bridges, and other public-infrastructure projects. Knife River Corporation was founded in 1917 and is based in Bismarck, North Dakota.

Construction Partners, Inc., a civil infrastructure company, constructs and maintains roadways in Alabama, Florida, Georgia, North Carolina, South Carolina, and Tennessee. The company provides various products and services to public and private infrastructure projects, such as highways, roads, bridges, airports, and commercial and residential developments. It also engages in manufacturing and distributing hot mix asphalt (HMA) for internal use and sales to third parties in connection with construction projects; and paving activities, including the construction of roadway base layers and application of asphalt pavement. In addition, the company is involved in site development, including the installation of utility and drainage systems; mining aggregates, such as sand, gravel, and construction stones that are used as raw materials in the production of HMA; and distributing liquid asphalt cement for internal use and sales to third parties in connection with HMA production. The company was formerly known as SunTx CPI Growth Company, Inc. and changed its name to Construction Partners, Inc. in September 2017. Construction Partners, Inc. was incorporated in 2007 and is headquartered in Dothan, Alabama.

Granite Construction Incorporated operates as an infrastructure contractor in the United States. It operates through two segments: Construction and Materials segments. The Construction segment engages in the construction and rehabilitation of roads, pavement preservation, bridges, rail lines, airports, marine ports, dams, reservoirs, aqueducts, infrastructure, and site development for use by the public and water-related construction for municipal agencies, commercial water suppliers, industrial facilities, and energy companies; and construction of various complex projects, including infrastructure/site development, mining, public safety, tunnel, solar storage, and power related projects. The Materials segment is involved in the production of aggregates, asphalt concrete, liquid asphalt, and recycled materials production for internal use in our construction projects and sale to third parties. It also offers site preparation, mining, and infrastructure services for residential development, energy development, commercial and industrial sites, railways, residential development, and energy development; and provides construction management professional services. It serves federal agencies, state departments of transportation, local transit authorities, county and city public works departments, school districts and developers, utilities, contractors, landscapers, manufacturers of products requiring aggregate materials, retailers, homeowners, farmers, brokers, and private owners of industrial, commercial, and residential sites. Granite Construction Incorporated was incorporated in 1922 and is headquartered in Watsonville, California.

Astec Industries, Inc. designs, engineers, manufactures, and markets equipment and components used primarily in road building and related construction activities worldwide. The company operates in two segments, Infrastructure Solutions and Materials Solutions. The Infrastructure Solutions segment offers asphalt plants and related components, heaters, concrete dust control systems, asphalt pavers, vaporizers, concrete material handling systems, screeds, heat recovery units, paste back-fill plants, asphalt storage tanks, hot oil heaters, bagging plants, fuel storage tanks, industrial and asphalt burners and systems, custom batch plants, material transfer vehicles, soil stabilizing-reclaiming machinery, blower trucks and trailers, milling machines, soil remediation plants, wood chippers and grinders, pump trailers, concrete batch plants, control systems, liquid terminals, storage equipment and related parts, construction and retrofits, polymer plants, and concrete mixers, as well as engineering and environmental permitting services. This segment provides its products to asphalt producers; highway and heavy equipment contractors; utility contractors; sand and gravel producers; construction, demolition, recycle and crushing contractors; forestry and environmental recycling contractors; mine and quarry operators; port and inland terminal authorities; power stations; and domestic and foreign government agencies. The Materials Solutions segment designs and manufactures crushing equipment, mobile plants, bulk material handling solutions, vibrating equipment, screening equipment, electrical control centers, modular plants and systems, conveying equipment, plant automation products, portable plants, and mineral processing equipment, as well as offers consulting and engineering services. The company was incorporated in 1972 and is headquartered in Chattanooga, Tennessee.