Westinghouse Air Brake Technologies Corporation, together with its subsidiaries, provides technology-based locomotives, equipment, systems, and services for the freight rail and passenger transit industries worldwide. It offers diesel-electric, battery, and liquid natural gas-powered locomotives; engines, electric motors, and propulsion systems; and marine and mining products. The company also offers positive train control equipment; pneumatic braking products; railway electronics; signal design and engineering services; distributed locomotive power, train cruise controls, and train remote controls; industrial/mobile Internet of Things hardware and software, edge-to-cloud, on and off-board analytics and rules, and asset performance management solutions; rail and shipper transportation management, and port visibility and optimization solutions; and network optimization solutions. In addition, it provides freight car trucks, braking equipment, and related components; air compressors and dryers; heat transfer components and systems; track and switch products; new commuter and switcher locomotives; and turbochargers. Further, the company offers freight locomotive overhauls, modernizations, and refurbishment services; locomotive and car maintenance; transit locomotive and car overhaul; unit exchange of locomotive components; and maintenance of way equipment and services. Additionally, it provides railway and freight braking equipment and related components; friction products, such as brake shoes, discs, and pads; heating, ventilation, and air conditioning equipment; access and platform screen doors; pantographs; auxiliary power converter and battery chargers; passenger information systems and closed-circuit television; signaling and railway electric relays; and doors, window assemblies, accessibility lifts, ramps, and electric charging solutions for buses. The company was founded in 1869 and is headquartered in Pittsburgh, Pennsylvania.

CSW Industrials, Inc. operates as a diversified industrial company in the United States and internationally. It operates through three segments: Contractor Solutions, Engineered Building Solutions, and Specialized Reliability Solutions. The Contractor Solutions segment provides condensate pads, pans, pumps, switches, and traps; cements, diffusers, grilles, registers, solvents, thread sealants, and vents; line set covers; refrigerant caps; wire pulling head tools; electrical protection, maintenance chemicals, and installation supplies; ductless mini-split systems installation support tools and accessories; and drain waste and vent system products for use in for heating, ventilation, air conditioning, refrigeration, plumbing, general industrial, architecturally specified building products. The Engineered Building Solutions segment offers architectural railings and associated services; fire and smoke protection solutions; fire stopping solutions; and pre-engineered and custom architectural building components for use in architecturally specified building products. The Specialized Reliability Solutions segment provides anti-seize products; compounds, lubricants, lubricant management products, and sealants; desiccant breather filtration products; and contamination control, industrial maintenance and repair, rail friction modifiers, sealants, and operations solutions for use in energy, general industrial, mining, and rail transportation. The company was incorporated in 2014 and is headquartered in Dallas, Texas.

Lindsay Corporation, together with its subsidiaries, provides water management and road infrastructure products and services in the United States and internationally. It operates in two segments, Irrigation and Infrastructure. The Irrigation segment manufactures and markets center pivot, lateral move irrigation systems, and irrigation controls under the Zimmatic brand; hose reel travelers under the Perrot brand; and chemical injection systems, variable rate irrigation systems, flow meters, weather stations, soil moisture sensors, and remote monitoring and control systems. It also offers repair and replacement parts for its irrigation systems and controls, and diameter steel tubing; global positioning system positioning and guidance, variable rate irrigation, wireless irrigation management, and irrigation scheduling technology solutions; and industrial Internet of Things technology solutions, data acquisition and management systems, and custom electronic equipment for applications under the Elecsys brand. The Infrastructure segment provides Road Zipper System comprised of T-shaped concrete and steel barriers, barrier transfer machine, and variable length barriers, which are used for highway reconstruction, paving and resurfacing, road widening, median and shoulder construction, and repairs to tunnels and bridges. This segment also offers redirective and non-redirective crash cushions to enhance highway safety at locations such as toll booths, freeway off-ramps, medians and roadside barrier ends, bridge supports, utility poles, and other fixed roadway hazards; specialty barriers; preformed tape and road safety accessory products, as well as rail products, such as signals and lights, structures, foundations, junction boxes, and signs. Lindsay Corporation was founded in 1955 and is headquartered in Omaha, Nebraska.

Leggett & Platt, Incorporated designs, manufactures, and sells engineered components and products in the United States, Europe, China, Canada, Mexico, and internationally. It operates through three segments: Bedding Products; Specialized Products; and Furniture, Flooring & Textile Products. The company offers steel rods, drawn wires, specialty foam chemicals and additives, innersprings, specialty foam for use in bedding and furniture, private label finished mattresses, ready-to-assemble mattress foundations, static foundations, and adjustable beds, as well as machines for producing innersprings; industrial sewing and quilting machines; mattress-packaging; and glue-drying equipment for various industrial users of steel rod and wire, manufacturers of finished bedding, bedding brands and mattress retailers, E-commerce retailers, big box retailers, department stores, and home improvement centers. It also provides mechanical and pneumatic lumbar support and massage systems for automotive seating; seat suspension systems; motors and actuators; cables; titanium, nickel, and stainless-steel tubing, formed tubes, tube assemblies, and flexible joint components for fluid conveyance systems; and engineered hydraulic cylinders to automobile original equipment manufacturers (OEMs) and suppliers, aerospace OEMs and suppliers, and mobile equipment OEMs. In addition, the company offers steel mechanisms and motion hardware; springs and seat suspensions; components and private label finished goods for soft seating; bases, columns, back rests, casters, and frames for office chairs; control devices for chairs; and carpet cushion and hard surface flooring underlayment, structural fabrics, and geo components for manufacturers of upholstered and office furniture, flooring retailers and distributors, contractors, landscapers, road construction companies, retailers, government agencies, and mattress and furniture producers, as well as manufacturers of packaging, filtration, and draperies. Leggett & Platt, Incorporated was founded in 1883 and is headquartered in Carthage, Missouri.

Limbach Holdings, Inc. operates as a building systems solution company in the United States. It operates through two segments, General Contractor Relationships and Owner Direct Relationships. The company engages in the construction and renovation projects that involve primarily include mechanical, plumbing, and electrical services. It also provides critical system repair, MEP infrastructure projects, maintenance contracts, building automation upgrades, data driven insights, and program management services. In addition, it offers captive engineering capabilities, estimating and virtual design; and professional engineering, energy analysis, estimation, and detail design and three-dimensional building installation coordination services. The company serves research, acute care, and inpatient hospitals; public and private colleges, universities, research centers; sports arenas; entertainment facilities, and amusement rides and parks; data centers; automotive, energy and general manufacturing plants; and life sciences, including organizations and companies, whose work is centered around research and development focused on living things. Limbach Holdings, Inc. was founded in 1901 and is headquartered in Warrendale, Pennsylvania.

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.

Koppers Holdings Inc. provides treated wood products, wood preservation chemicals, and carbon compounds in the United States, Australasia, Europe, and internationally. The company operates through Railroad and Utility Products and Services (RUPS), Performance Chemicals (PC), and Carbon Materials and Chemicals (CMC) segments. The RUPS segment procures and treats crossties, switch ties, and various types of lumber used for railroad bridges and crossings. It also provides rail joint bars to join rails together for railroads; transmission and distribution poles for electric and telephone utilities; and pilings. This segment provides railroad services, such as engineering, design, repair, and inspection services for railroad bridges. The PC segment develops, manufactures, and markets copper-based wood preservatives, including micronized copper azole, micronized pigments, alkaline copper quaternary, amine copper azole, and chromated copper arsenate for decking, fencing, utility poles, construction lumber and timbers, and various agricultural uses; and supplies fire-retardant chemicals for pressure treatment of wood primarily in commercial construction. The CMC segment manufactures creosote for the treatment of wood or as a feedstock in the production of carbon black; carbon pitch, a raw material used in the production of aluminum and steel; naphthalene for use as a feedstock in the production of phthalic anhydride and as a surfactant in the production of concrete; phthalic anhydride for the production of plasticizers, polyester resins, and alkyd paints; and carbon black feedstock for use in the production of carbon black. It serves the railroad, specialty chemical, utility, residential lumber, agriculture, aluminum, steel, rubber, and construction sectors. Koppers Holdings Inc. was founded in 1988 and is based in Pittsburgh, Pennsylvania.

Friedman Industries, Incorporated engages in the manufacture and processing of steel products in the United States. It operates in two segments, Flat-Roll Products and Tubular Products. The Flat-Roll Product segment is involved in the conversion of steel coils into flat sheet and plate steel cut to customer specifications and reselling steel coils, as well as provision of process and storage services for customer-owned coils on a fee basis. The segment offers its products and services to steel distributors and customers manufacturing steel products, such as steel buildings, railroad cars, barges, tanks and containers, trailers, component parts, and other fabricated steel products. The Tubular Product segment manufactures line and oil country pipes, as well as pipes for structural applications. This segment sells its tubular products principally to steel and pipe distributors through its own sales force. The company was incorporated in 1965 and is based in Longview, Texas.