Nucor Corporation engages in manufacture and sale of steel and steel products. It operates in three segments: steel mills, steel products, and raw materials. The Steel Mills segment produces hot-rolled, cold-rolled, and galvanized sheet steel products; plate steel products; wide-flange beams, beam blanks, and H-piling and sheet piling structural steel products; bar steel products, such as blooms, billets, concrete reinforcing and merchant bars, and engineered special bar quality products; and engages in the steel trading and rebar distribution businesses. This segment sells its products to steel service centers, fabricators, and manufacturers in the United States, Canada, and Mexico. The Steel Products segment offers steel joists and joist girders, steel decks, and galvanized torque tubes for used in solar arrays, hollow structural section steel tubing, electrical conduit, fabricated concrete reinforcing steel, cold finished steel, steel fasteners, steel grating and expanded metal, wire and wire mesh, metal building systems, insulated metal panels, steel racking, overhead doors, and utility towers and structures for communications and energy transmission. This segment is also involved in the piling distribution business. The Raw Materials segment produces direct reduced iron (DRI); brokers ferrous and nonferrous metals, pig iron, hot briquetted iron, and DRI; supplies ferro-alloys; processes ferrous and nonferrous scrap metal; and engages in the natural gas production and industrial gas business. This segment sells its ferrous scrap to electric arc furnace steel mills and foundries for manufacturing process; and nonferrous scrap metal to aluminum can producers, secondary aluminum smelters, steel mills and other processors, and consumers of various nonferrous metals. It markets its products through in-house sales force; and internal distribution and trading companies. Nucor Corporation was founded in 1905 and is headquartered in Charlotte, North Carolina.

Steel Dynamics, Inc., together with its subsidiaries, operates as a steel producer and metal recycler in the United States. The Steel Operations segment offers hot rolled, cold rolled, and coated steel products; parallel flange beams and channel sections, flat bars, large unequal leg angles, and reinforcing steel bars, as well as standard strength carbon, intermediate alloy hardness, and premium grade rail products; engineered special-bar-quality products, merchant-bar-quality products, and other engineered round steel bars; channels, angles, flats, merchant rounds, and reinforcing steel bars; and specialty shapes and light structural steel products. This segment also engages in turning, polishing, straightening, chamfering, precision saw-cutting, and heat treating of bar products. Its products are used in construction, automotive, manufacturing, transportation, heavy and agriculture equipment, and pipe and tube markets. The Metals Recycling Operations segment is involved in the ferrous and nonferrous scrap metal processing, transportation, marketing, brokerage, and scrap management services. Its ferrous products include heavy melting steel, busheling, bundled scrap, shredded scrap, steel turnings, and cast-iron products; and nonferrous products comprise aluminum, brass, copper, stainless steel, and other nonferrous metals. The Steel Fabrication Operations segment produces steel non-residential building components, such as steel joists, girders, trusses, and steel deck products for non-residential steel fabricators, metal building companies, general construction contractors, developers, owners, brokers, and governmental entities, as well as e-commerce warehouses, data centers, metal buildings, and education and commercial building projects. The Aluminum Operations segment offers recycled aluminum flat rolled products. The company also exports its products. Steel Dynamics, Inc. was founded in 1993 and is headquartered in Fort Wayne, Indiana.

Simpson Manufacturing Co., Inc., through its subsidiaries, designs, engineers, manufactures, and sells structural solutions for wood, concrete, and steel connections. The company offers wood construction products, including connectors, truss plates, fastening systems, fasteners and shearwalls, and pre-fabricated lateral systems for use in light-frame construction; and concrete construction products comprising adhesives, specialty chemicals, mechanical anchors, carbide drill bits, powder actuated tools, fiber-reinforced materials, and other repair products for use in concrete, masonry, and steel construction, as well as grouts, coatings, sealers, mortars, fiberglass and fiber-reinforced polymer systems, and asphalt products for use in concrete construction repair, and strengthening and protection products. It also provides connectors and lateral products for wood framing, timber and offsite construction, structural steel construction, and cold-formed steel applications; and mechanical and adhesive anchors for concrete and masonry construction applications. In addition, the company offers engineering and design services, as well as software solutions that facilitate the specification, selection, and use of its products. It markets its products to the residential construction, light industrial and commercial construction, infrastructure construction, remodeling, and do-it-yourself markets in the United States, Canada, France, the United Kingdom, Germany, Denmark, Switzerland, Portugal, Poland, the Netherlands, Belgium, Spain, Italy, Romania, Sweden, Norway, Australia, New Zealand, China, Taiwan, and Vietnam. The company was founded in 1956 and is headquartered in Pleasanton, California.

Commercial Metals Company manufactures, recycles, and fabricates steel and metal products, and related materials and services in the United States, Poland, China, and internationally. It operates through three segments: North America Steel Group; Europe Steel Group; and Emerging Businesses Group. The company processes and sells ferrous and nonferrous scrap metals to steel mills and foundries, aluminum sheet and ingot manufacturers, brass and bronze ingot makers, copper refineries and mills, secondary lead smelters, specialty steel mills, high temperature alloy manufacturers, and other consumers. It also manufactures and sells finished long steel products, including reinforcing bar, merchant bar, light structural, and other special sections, as well as semi-finished billets for rerolling and forging applications. In addition, the company provides fabricated rebar used to reinforce concrete primarily in the construction of commercial and non-commercial buildings, hospitals, convention centers, industrial plants, power plants, highways, bridges, arenas, stadiums, and dams; sells and rents construction-related products and equipment to concrete installers and other businesses; and manufactures and sells strength bars for the truck trailer industry, special bar steels for the energy market, and armor plates for military vehicles. Further, it manufactures rebars, merchant bars, and wire rods; and sells fabricated rebars, wire meshes, welded steel mesh, wire rod, cold rolled rebar, cold rolled wire rod, assembled rebar cages and other fabricated rebar by-products to fabricators, manufacturers, distributors, and construction companies. The company was founded in 1915 and is headquartered in Irving, Texas.

Preformed Line Products Company, together with its subsidiaries, designs and manufactures products and systems that are used in the construction and maintenance of overhead, ground-mounted, and underground networks for the energy, telecommunication, cable, data communication, and other industries. The company offers optical ground wire products to support, protect, terminate, and splice transmission and distribution lines, as well as bolted, welded, and compressed connectors for substations; and string hardware products, polymer insulators, wildlife protection, substation fittings, and motion control devices. It also provides rugged outside plant closures to protect and support wireline and wireless networks, such as copper cable or fiber optic cable from moisture, environmental hazards, and other contaminants; and hardware assemblies, pole line hardware, plastic products, cable dynamics/vibration solutions, interior/exterior connectors, tools, and urethane solutions that are used by energy, renewable energy, communications, cable, and special industries for various applications. The company serves public and private energy utilities and communication companies, cable operators, governmental agencies, contractors and subcontractors, distributors, and value-added resellers in the Americas, Europe, the Middle East, Africa, and the Asia-Pacific. It markets its products through a direct sales force, as well as through manufacturing representatives. Preformed Line Products Company was incorporated in 1947 and is headquartered in Mayfield Village, Ohio.

Universal Stainless & Alloy Products, Inc., together with its subsidiaries, manufactures and markets semi-finished and finished specialty steel products in the United States and internationally. Its products include stainless steel, nickel alloys, tool steel, and various other alloyed steels. The company offers semi-finished and finished long products in the form of ingots, billets, and bars; flat rolled products, such as slabs and plates; and customized shapes primarily for original equipment manufacturers, which are cold rolled from purchased coiled strip, flat bar, or extruded bar. It also offers conversion services on materials supplied by its customers. The company's products are used in aerospace, power generation, oil and gas, heavy equipment, and general industrial markets. It sells its products to service centers, forgers, rerollers, and original equipment manufacturers. The company was incorporated in 1994 and is headquartered in Bridgeville, Pennsylvania.

Northwest Pipe Company, together with its subsidiaries, engages in the manufacture and supply of water-related infrastructure products in North America. It operates in two segments, Engineered Steel Pressure Pipe (SPP) and Precast Infrastructure and Engineered Systems (Precast). The SPP segment offers large-diameter and high-pressure steel pipeline systems for use in water infrastructure applications, which are primarily related to drinking water systems. Its products are also used for hydroelectric power systems, wastewater systems, seismic resiliency, and other applications. In addition, this segment makes products for industrial plant piping systems and certain structural applications. The Precast segment provides stormwater and wastewater technology products, precast, and reinforced concrete products, including reinforced concrete pipe, manholes, box culverts, vaults and catch basins, pump lift stations, oil water separators, biofiltration units, steel casing pipes, and bar-wrapped concrete cylinder pipes, as well as pipeline system joints, fittings, specialized components, and other environmental and engineered solutions. The company sells its water infrastructure products under ParkUSA, Geneva Pipe and Precast, Permalok, and Northwest Pipe Company brands primarily to installation contractors. Northwest Pipe Company was incorporated in 1966 and is headquartered in Vancouver, Washington.

Smith-Midland Corporation invents, develops, manufactures, markets, leases, licenses, sells, and installs precast concrete products and systems in the United States. It offers SlenderWall lightweight construction panel, lightweight exterior cladding used for the exterior walls of buildings; Sierra Wall that provides sound and sight barrier for use alongside highways around residential, industrial, and commercial properties; J-J Hooks highway safety barriers, used on roadways to separate lanes of traffic in construction work zone or traffic control purposes; Easi-Set precast building and Easi-Span expandable precast buildings, used in housing communications operations, traffic control systems, and mechanical and electrical stations; Easi-Set utility, vaults for house equipment, such as cable, telephone, or traffic signal equipment, and for underground storage, as well as custom-built utility vaults for special needs; SoftSound soundwall panels, it absorb highway noise; Beach Prisms erosion control modules for seawalls and jetties; and H2Out secondary drainage systems for panelized exterior cladding. It licenses its proprietary products in the United States, Canada, New Zealand, Australia, Belgium, Mexico, and Trinidad. The company markets its products through in-house sales force and independent sales representatives to contractors performing public and private construction contracts, such as construction of commercial buildings, public and private roads and highways, airports, and municipal utilities; and federal, state, and local transportation authorities. It serves its products to construction, highway, utilities, and farming industries. Smith-Midland Corporation was founded in 1960 and is based in Midland, Virginia.