| 1 | TGOX | Transgo | added 4/1965; eliminated 7/1965 | | NAKINA |
| 2 | TGOX | Transgo, Inc. | added 7/1965; 7/1965-10/1966; eliminated 4/1969 | | NAKINA |
| 3 | TGOX | Railease Corp. | added 4/1969; eliminated 1/1970 | | NAKINA |
| 4 | TGOX | Rail-U.S. Leasing, Inc. | added 1/1970; 4/1970-1/1975; eliminated 4/1978 | | NAKINA |
| 5 | TGOX | U.S. Rail Services, Inc. | added 4/1978; 1/1980-1/1994; eliminated 4/1994 | | NAKINA |
| 6 | TGOX | USL Capital Rail Services | added 4/1994; eliminated 10/1996 | | NAKINA |
| 7 | TGOX | First Union Rail | added 10/1996; 7/2000-7/2005 | | NAKINA |
| 8 | TGOX | Transgo | added 4/65; eliminated 7/65 | | NRHS |
| 9 | TGOX | Transgo, Inc. | added 7/65; 7/65-10/66; eliminated 4/69 | | NRHS |
| 10 | TGOX | Railease Corp. | added 4/69; eliminated 1/70 | | NRHS |
| 11 | TGOX | Rail-U.S. Leasing, Inc. | added 1/70; 4/70-1/75; eliminated 4/78 | | NRHS |
| 12 | TGOX | U.S. Rail Services, Inc. | added 4/78; 1/80-1/94; eliminated 4/94 | | NRHS |
| 13 | TGOX | USL Capital Rail Services | added 4/94; eliminated 10/96 | | NRHS |
| 14 | TGOX | First Union Rail | added 10/96; 7/2000 | | NRHS |
| 15 | TGOX | FIRST UNION RAIL [(RUSX) US RAIL SERVICES, INC.; RAILEASE CORP.; TRANSGO, INC.] | | | PWRC |
| 16 | TGOX | US Rail Services | | | RSRV |
| 17 | TGOX | TRANSGO INC | | | SCAC3 |