| 1 | GSCX | General American Marks Co. | added 1/2003; 7/2005 | | NAKINA |
| 2 | GSCX | GATX Financial Corp. | added 1/2002; eliminated 1/2003 | | NAKINA |
| 3 | GSCX | GATX/GLC Leasing Corp. | added 4/1985; 1/1994-7/2000; eliminated 1/2002 | | NAKINA |
| 4 | GSCX | Greenville Leasing Co. | added 4/1981; eliminated 4/1985 | | NAKINA |
| 5 | GSCX | Greenlease Co., a Division of Greenville Steel Car Co. | 1/1980; eliminated 4/1981 | | NAKINA |
| 6 | GSCX | Greenville Steel Car Co. | 4/1970-1/1975 | | NAKINA |
| 7 | GSCX | Greenlease Co., a Division of Greenville Steel Car Co. | 10/1966 | | NAKINA |
| 8 | GSCX | Greenville Steel Car | 7/1965 | | NAKINA |
| 9 | GSCX | Greenlease Co., a Division of Greenville Steel Car Co. | added 7/1963 | | NAKINA |
| 10 | GSCX | Gulf States Creosoting Co. | 7/1930-7/1954; eliminated 1/1955 | | NAKINA |
| 11 | GSCX | Gulf States Creosoting Co. | 4/38-1/52 | | NRHS |
| 12 | GSCX | Greenlease Co., a Division of Greenville Steel Car Co. | added 7/63 | | NRHS |
| 13 | GSCX | Greenville Steel Car | Jul-65 | | NRHS |
| 14 | GSCX | Greenlease Co., a Division of Greenville Steel Car Co. | Oct-66 | | NRHS |
| 15 | GSCX | Greenville Steel Car Co. | 4/70-1/75 | | NRHS |
| 16 | GSCX | Greenlease Co., a Division of Greenville Steel Car Co. | 1/80; eliminated 4/81 | | NRHS |
| 17 | GSCX | Greenville Leasing Co. | added 4/81; eliminated 4/85 | | NRHS |
| 18 | GSCX | GATX/GLC Leasing Corp. | added 4/85; 1/94-7/2000 | | NRHS |
| 19 | GSCX | *GULF STATES CREOSOTING CO. | | | PWRC |
| 20 | GSCX | +GENERAL AMERICAN MARKS COMPANY / GREENVILLE LEASING CORPORATION | | | PWRC |
| 21 | GSCX | Greenville Leasing (GATX) | | | RSRV |
| 22 | GSCX | GENERAL AMERICAN MARKS COMPANY | | | SCAC4 |
| 23 | GSCX | GATX Capital Corporation | | USA | TRAFFIC |
