| Carrier Code | Carrier Name |
| GSTU | GENSTAR CORPORATION |
| GSWU | GERHARD SCHUETZ WEYRICH |
| GSXC | GLEFI SHIPPING XXIII COMPANY LIMITED |
| GTEL | GLOBAL TRANSPORT ENTERPRISES LTD |
| GTEU | GENERAL TRANSPORT EQUIPMENT CO INC |
| GTIU | G T I TRUCKING CO LTD |
| GTPU | GLENDY INTERMODAL SYSTEMS INC |
| GTWC | GATEWAY CHARTERING CORPORATION |
| GTWT | GATEWAY TUGS INC |
| GTWW | GATEWAY TOWING |
| GTXU | GATX-FULLER LTD |
| GTYN | GENERAL MARITIME AGENCY INC |
| GUAT | GULS ATLANTIC TRANSPORT CORP |
| GUCN | GULF COAST NAVIGATION |
| GUDA | GUARDIAN TANKERS CORP |
