| 1 | GQ | Big Sky Airlines | ICAO: BSY, Callsign: Big Sky, IATA Prefix: 387, Designator GQ recalled by IATA | USA | AVCODES |
| 2 | GQ | General Air | | D | AVCODES |
| 3 | GQ | Druk Air | Callsign: Druk, | BTN | AVCODES |
| 4 | GQ | Sky Express S.A. | ICAO: SEH, Callsign: Air Crete, IATA Designator changed from G3* | GR | AVCODES |
| 5 | GQ | Guardian Flight, Inc. | | USA | AVCODES |
| 6 | GQBL | GOD BLESS TRUCKING | | | SCAC4 |
| 7 | GQBT | GLOBAL TRADING RESOURCES INC | | | SCAC4 |
| 8 | GQCN | GRIND LOGISTICS CORPORATION | | | SCAC4 |
| 9 | GQGI | GTR LOGISTICS INC | | | SCAC4 |
| 10 | GQLC | GRACE LOGISTICS LLC | | | SCAC4 |
| 11 | GQLI | GREAT LAKES CONNECTION INC | | | SCAC4 |
| 12 | GQLK | GREAT LAKES | | | SCAC4 |
| 13 | GQMI | GRAEBEL QUALITY MOVERS | | | SCAC4 |
| 14 | GQNT | GREEN TRANSPORTATION INC | | | SCAC4 |
| 15 | GQST | GRANITE STATE TRANSPORTATION | | | SCAC4 |
| 16 | GQTB | GORDON TRUCKING INC (QUAKER TRIP BI | | | SCAC4 |
| 17 | GQTC | GTC LOGISTICS INC | | | SCAC4 |
| 18 | GQTI | GATOR TRANSPORTATION INC | | | SCAC4 |
