| 1 | GLT | Galata Aviacharter Ltd. | Callsign: Galata Charter, | MD | AVCODES |
| 2 | GLT | Aero Charter, Inc. | Callsign: Gaslight, | USA | AVCODES |
| 3 | GLT | Aero Charter | | | ICAO1 |
| 4 | GLT | Göteborgsregionens Lokaltrafik | | S | TRAFFIC |
| 5 | GLTB | GLT | | | SCAC4 |
| 6 | GLTD | GREAT LAKES TRUCKING | | | SCAC4 |
| 7 | GLTJ | GLT TRUCKING INC | | | SCAC4 |
| 8 | GLTK | GLASS TI LLC | | | SCAC4 |
| 9 | GLTL | GLENWOOD TRANSIT LINE, INC | | | SCAC1 |
| 10 | GLTL | GLENWOOD TRANSIT LINE, INC | | | SCAC4 |
| 11 | GLTN | GALE/TRIANGLE INC | | | SCAC4 |
| 12 | GLTP | GRAND LINX TRANSPORTATION LTD | | | SCAC4 |
| 13 | GLTS | GENERAL TRANSPORT COMPANY | | | SCAC4 |
| 14 | GLTU | GLT TRADING LLC | | USA | BIC |
| 15 | GLTX | PH GLATFELTER COMPANY | | | SCAC4 |
| 16 | GLTY | G-LINE TRUCKING | | | SCAC4 |
