- L. B. Foster Company
 - Replacing and repairing bridges, railroad components, steel pipe and turbine pumps, couplings and tubing, as well supplying mechanically stabilized earth wall systems. - Railworks Corporation
- Provider of railway construction and maintenance services, materials, and supplies.
- Schneeberger Linear Technology
- Supplier of linear ball, roller, and needle bearings, monorail guideways, manual slides, linear and rotary positioning tables, precision ground and rolled ballscrews.
- Jekay International
- Manufactures fasteners, sleepers, bolts, nuts, base, and fish plates.
- Siemens Transportation Systems
- Provides system optimisation by supplying electrification, high speed trainsets, signaling, communications, and network control systems. Can also design-build complete rail systems.
- National Railway Supply, Inc
- Providing battery and battery charger technology for the rail, marine and power industries.
- Faiveley
- Equipment manufacturer for the railway industry and manufacturer of plastic bottles and lids for the cosmetic industry. In French and English.
- Safetrack
- Supplies railway products such as pin brazing, signal and power-bonds, eartling products, cathodic protection, cantilevers, and warning systems.
- Sab Wabco
- Supplier of railway brakes and other on-board railway systems.
- Westinghouse Air Brake Co. (WABCO)
- Manufactures equipment for locomotives, railway freight cars, and passenger transit vehicles.
- National Railway Supplies (NRS)
- U.K. provider of railway infrastructure products and services.
- Pacific Northern Rail Contractors Corp.
- Railway contractors and suppliers of railway, railroad, and transit track material and equipment.
- KLD Labs, Inc.
- Specialises in the development and deployment of real-time rail measurement systems for harsh environment applications.
- Delta Furniture
- Produces custom seating for hotels, offices, restaurants, stadiums and airports.
- Severn-Lamb
- Manufacturers of trains, monorails, trams, and more.
- Carmanah Railway Lights
- Supplier of solar LED railway lights for safety and hazard marking applications.
- Knorr Brake Corporation
- Design and manufacture of braking systems for rail vehicles.
- Cogifer
- Designs and manufactures turnouts and safety products for fixed railway installations of track guided systems. Provides new installations, repairs, and routine maintenance of railway tracks.
- American Industries, Inc.
- Specialists in dismantling and reconditioning railcars and buying and selling new and used railcar parts.
- Hovey Industries Ltd
- Manufacturers of quality railroad equipment.
- Mandak Railway Supply
- Dismantles railway rolling stock and reconditions salvageable parts.
- Tie and Track Systems, Inc.
- Manufacturer of steel railroad ties, turnouts, bridge deck, yard, and more.
- Monogram Systems
- Provides waste management products for the aircraft, railroad, and bus industries.
- Northwest Milling Company
- Dealing in softwood and hardwood railroad ties.
- Standard Car Truck Company
- Designs freight car truck stabilizer systems and bogie components.
- Bright-Bond
- Suppliers of pinbrazing equipment used for rail bonding and for attaching cathodic protection cables.
- Lawrence Ricci Industrial Equipment Services
- Maintains, repairs, and rebuilds all makes of mobile railcar movers.
- China Railway Materials & Supplies Corp. Import & Export Branch
- Exports permanent way material and machinery, locomotive and rolling stock, and spare parts.
- Gerep Maschinenbau GmbH
- Produces hydraulic shock absorbers for cars, trucks, trailers, caravans and railway carriages.
- VAE Africa
- Manufacturers of sleepers, trackwork, switches, turnouts, and crossings.
- Serrmi Products, Inc.
- Manufacturer of signal and communication equipment.
- Twinco Mfg. Co., Inc.
- Supplier of identification products including wire markers, engraved nameplates, vinyl labels, pipes, and conduit tags.
- Technorail
- Sleepers manufacturing plant.
- Gaiser Equipment Company
- Trackmobile and switchmaster parts supplier offering repairs, rentals and sales of used and remanufactured mobile railcar movers.
- Tie Yard of Omaha, The
- Engaged in railroad track abandonment operations and material disposition. Processes and supplies railroad ties, scrap and relay rail, and ballast rock for landscaping, construction, and further railroad use.
- ELCON, Inc.
- Designing, building, and servicing control systems for the railroad industry.
- Inter-Pacific Services Ltd. (IPS)
- Supplies aftermarket parts and custom tools for maintenance of way equipment.
- Kalimata Ispat Pvt. Ltd.
- Manufacturer and exporter of railway track fasteners.
- Ennis-Paikin Steel Ltd.
- Suppliers of used and reconditioned locomotives, freight cars, and Trackmobiles.
- IAD Rail Systems
- Manufactures the HPSS in bearer points operating system. Consists of integrated ALD and torsional backdrive to Railtrack RT60 and 54B.
- Reese Machine Company
- Supplies a variety of railroad maintenance-of-way equipment and custom parts. Also offers chemical and pump parts, as well as custom CNC machining.
- Ozark Mountain Railcar
- Ozark Mountain Railcar is a leading brokerage firm for the sale of railroads and railroad equipment.
- RAD Data Communications
- Communications solutions for the railway industry, including voice and data transmission, video surveillance, and connectivity for train information displays, signaling, and alarms.
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