| 1 | PGDX | General Electric Rail Services Corp. | added 1/2000; 7/2000-7/2005 | | NAKINA |
| 2 | PGDX | General Electric Railcar Services Corp. | added 1/1999; eliminated 1/2000 | | NAKINA |
| 3 | PGDX | The Procter & Gamble Manufacturing Co. | added 1/1984; 1/1994; eliminated 1/1999 | | NAKINA |
| 4 | PGDX | The Proctor & Gamble Manufacturing Co. | 1/94; eliminated 1/99 | | NRHS |
| 5 | PGDX | General Electric Railcar Services Corp. | added 1/99; eliminated 1/2000 | | NRHS |
| 6 | PGDX | General Electric Rail Services Corp. | added 1/2000; 7/2000 | | NRHS |
| 7 | PGDX | GENERAL ELECTRIC RAIL SERVICES CORP.[PROCTER & GAMBLE MFG CO.] | | | PWRC |
| 8 | PGDX | Procter and Gamble Manufacturing | | | RSRV |
| 9 | PGDX | GENERAL ELECTRIC RAILCAR SERVICES C | | | SCAC4 |