| 1 | GGPI | G G P TRUCKING INC | | | SCAC4 |
| 2 | GGPR | GEOPHYSICS GPR INTERNATIONAL INC | | | SCAC4 |
| 3 | GGPS | GREGS PETROLEUM SERVICE INC | | | SCAC4 |
| 4 | GGPT | GOULD, G P TRANSPORTATION | | | SCAC4 |
| 5 | GGPTE | Greater Glasgow Passenger Transport Executive | | GB | TRAFFIC |
| 6 | GGPX | General American Marks Co. | added 1/1998; 7/2000-7/2005 | | NAKINA |
| 7 | GGPX | General American Transportation Corp. | added 4/1970; 4/1970-1/1994; eliminated 1/1998 | | NAKINA |
| 8 | GGPX | General American Transportation Corp. | added 4/70; 4/70-1/94; eliminated 1/98 | | NRHS |
| 9 | GGPX | General American Marks Co. | added 1/98; 7/2000 | | NRHS |
| 10 | GGPX | GENERAL AMERICAN MARKS COMPANY {GENERAL AMERICAN TRANSPORTATION CORP.] | | | PWRC |
| 11 | GGPX | General American Marks (GATX Corporation) | | | RSRV |
