| 1 | HERX | General Electric Rail Services Corp. | added 1/2000; 7/2000-7/2005 | | NAKINA |
| 2 | HERX | General Electric Railcar Services Corp. | added 1/1984; 1/1994; eliminated 1/2000 | | NAKINA |
| 3 | HERX | North American Car Corp. | 1/1950-1/1980; eliminated 1/1984 | | NAKINA |
| 4 | HERX | Hershey Chocolate Co. (North American Car Corp.) | 7/1932-7/1935 | | NAKINA |
| 5 | HERX | North American Car Corp. | 1/52-1/80 | | NRHS |
| 6 | HERX | General Electric Railcar Services Corp. | 1/94; eliminated 1/2000 | | NRHS |
| 7 | HERX | General Electric Rail Services Corp. | added 1/2000; 7/2000 | | NRHS |
| 8 | HERX | (NATX) GEN. ELECTRIC RAIL SERVICES CORP. (HERSHEY FOOD PROD.- LESSEE) {NORTH AMERICAN CAR CO.] | | | PWRC |
| 9 | HERX | Hershey Foods (GE Rail Services Corporation) | | | RSRV |
| 10 | HERX | GENERAL ELECTRIC RAILCAR SERVICES C | | | SCAC4 |
| 11 | HERX | Hershey Chocolate Co. | | USA | TRAFFIC |