| 1 | GLH | Gleneagle Helicopters Services (Scotland) Ltd. | Callsign: Glen, | GB | AVCODES |
| 2 | GLH | Chervon Corporation | Callsign: Gulfhawk, | USA | AVCODES |
| 3 | GLHA | GILCHRIST, AUGUSTUS | | | SCAC4 |
| 4 | GLHB | GB LOGISTICS LLC | | | SCAC4 |
| 5 | GLHF | GENERAL LOGISTICS SOLUTIONS CORP | | | SCAC4 |
| 6 | GLHG | GARNETT, L H & GIRLS | | | SCAC4 |
| 7 | GLHH | GREAT LAKES HEAVY HAUL INC | | | SCAC4 |
| 8 | GLHV | GLOBE SERVICES INC | | | SCAC4 |
| 9 | GLHW | GARGOYLE LOGISTICS INC | | | SCAC4 |
| 10 | GLHY | GALLEGOS AYON TRUCKING | | | SCAC4 |
