| 1 | NADX | General Electric Rail Services Corp. | added 1/2000; 7/2000-7/2005 | | NAKINA |
| 2 | NADX | General Electric Railcar Services Corp. | added 1/1984; 1/1994; eliminated 1/2000 | | NAKINA |
| 3 | NADX | North American Despatch (North American Car Corp.) | 4/1970-1/1980; eliminated 1/1984 | | NAKINA |
| 4 | NADX | North American Car Corp. | 10/1966 | | NAKINA |
| 5 | NADX | North American Despatch (North American Car Corp.) | 7/1937-7/1965 | | NAKINA |
| 6 | NADX | North American Car Corp. | 7/1930-7/1935 | | NAKINA |
| 7 | NADX | North American Car Corp. | Apr-38 | | NRHS |
| 8 | NADX | North American Despatch (North American Car Corp.) | 1/52-7/65 | | NRHS |
| 9 | NADX | North American Car Corp. | Oct-66 | | NRHS |
| 10 | NADX | North American Despatch (North American Car Corp.) | 4/70-1/80 | | NRHS |
| 11 | NADX | General Electric Railcar Services Corp. | 1/94; eliminated 1/2000 | | NRHS |
| 12 | NADX | General Electric Rail Services Corp. | added 1/2000; 7/2000 | | NRHS |
| 13 | NADX | (NATX) GE RAIL SERVICES CORPORATION [NO. AMER. DOMESTIC CONTAINER CORP] | | | PWRC |
| 14 | NADX | North American Domestic Container Corporation (GE Rail Services) | | | RSRV |
| 15 | NADX | NORTH AMERICAN CAR CORP | | | SCAC3 |
| 16 | NADX | GENERAL ELECTRIC RAILCAR SERVICES C | | | SCAC4 |