| 1 | GLX | Galaxy Airways | IATA: 9G, Callsign: Galaxy Air, Ceased operations | GR | AVCODES |
| 2 | GLX | Gelix Airlines | Callsign: Russian Bird, | RUS | AVCODES |
| 3 | GLX | Goodman Lumber Co. | 7/1937-4/1938 (not listed) | | NAKINA |
| 4 | GLX | GOODMAN LUMBER CO. | | | PWRC |
| 5 | GLX | Galaxy Airlines | Real: GXY, J7 | J | TRAFFIC |
| 6 | GLXA | GLOBALEX LLC | | | SCAC4 |
| 7 | GLXB | GREAT LOGISTICS INC | | | SCAC4 |
| 8 | GLXF | GILL TRANSPORT | | | SCAC4 |
| 9 | GLXH | GLORY EXPRESS INC | | | SCAC4 |
| 10 | GLXI | GALAXY INTERMODAL INC | | | SCAC4 |
| 11 | GLXJ | G L TRANSPORT LLC | | | SCAC4 |
| 12 | GLXL | GRAND LINX LOGISTICS INC | | | SCAC4 |
| 13 | GLXN | GREEN LINE EXPRESS INC | | | SCAC4 |
| 14 | GLXO | G & L TRANSPORT | | | SCAC4 |
| 15 | GLXQ | GLADIATOR LOGISTICS INC | | | SCAC4 |
| 16 | GLXR | GALAXY TRANSPORT INC | | | SCAC4 |
| 17 | GLXU | GLOBAL LOGISTICS SOLUTIONS INDIA PVT LTD | | IND | BIC |
| 18 | GLXY | GALAXY TRANSPORTATION SERVICES | | | SCAC4 |
