| # | Name | State, City | Country | Description | |
|---|---|---|---|---|---|
| 1 |
 JMA Railroad Supply Company | IN, Seymour | USA | Factory trained sales representatives to the Class I, Short Line and Industrial Railroads for major manufacturers, including: ABLOY high security padlocks; CML INNOVATIVE TECHNOLOGIES, manufacturer of locomotive bulbs; ENGINEAIR Roots blowers, remanufactu | |
| 2 | JMA Rail Products | IN, Seymour | USA | JMA Rail Products manufactures cast iron brake shoes and is a supplier of: Abloy switch & signal padlocks, aftercoolers, air brakes, air brake components, air compressors, air compressor components, air conditioners & HVAC systems, air filters, air horns, | |
| 3 | Diesel Electrical Equipment, Inc. | IN, Griffith | USA | Specializing in the OEM repair and reconditioning, unit exchange and sale of locomotive electrical components and material. These components include power contactors, reverser switches, controller mechanisms, silicon controlled rectifier assemblies, motor |