| 1 | GAI | Gromov Flight Research Institute Airline | {IATA: 3R, Callsign: Gromov Airline, IATA Prefix: 520, Name changed to Joint Stock Company "Moskovia Airlines". Designator 3R reinstated by IATA};SRCKEY=AVCODES | RUS | |
| 2 | GAI | Gromov Air, JSC | Callsign: Gromov Airline, | RUS | AVCODES |
| 3 | GAI | Joint Stock Company "Moskovia Airlines" | IATA: 3R, Callsign: Gromov Airline, IATA Prefix: 520, Name changed from Gromov Flight Research Institute Airline. Designator 3R reinstated by IATA | RUS | AVCODES |
| 4 | GAI | Joint Stock Company "Moskovia Airlines" | Callsign: Gromov Airline, IATA Prefix: 520, AOC Suspended by Rosaviatsia on 29 August 2014 due financial issues. Designator 3R recalled by IATA. Name changed from Gromov Flight Research Institute Airline | RUS | AVCODES |
| 5 | GAI | Moskovia Airlines | IATA: 3R | | ICAO1 |
| 6 | GAIB | GABRIEL, A INC | | | SCAC4 |
| 7 | GAIC | GROUPE ANDERSON INC | | | SCAC4 |
| 8 | GAIE | GAN-TRIBUTE CO LTD | | | SCAC4 |
| 9 | GAIF | GAN-TROPHY CO LTD | | | SCAC4 |
| 10 | GAIG | GAILES GAS TRANSPORTS INC | | | SCAC4 |
| 11 | GAII | GALLANT INTERNATIONAL INC | | | SCAC4 |
| 12 | GAIJ | GRIMMS AUTOMOVATION INC | | | SCAC4 |
| 13 | GAIK | GUMRO & ASSOCIATES INC | | | SCAC4 |
| 14 | GAIN | GAINES MOTOR LINES, INC | | | SCAC1 |
| 15 | GAIP | GRAND AIRE INC | | | SCAC4 |
| 16 | GAIS | GESTION ATLAS 2000 INC | | | SCAC4 |
| 17 | GAIT | GAILSCO TRANSPORTATION/LOGISTICS | | | SCAC4 |
| 18 | GAIT | Gdańskie Autobusy i Tramwaje | City: Gdansk, On January 19, 2017, the company changed its name from Zakład Komunikacji Miejskiej in Gdańsk to Gdańskie Autobusy i Tramwaje . | PL | TRAFFIC |
| 19 | GAIV | GALA INVESTMENTS INC | | | SCAC4 |
| 20 | GAIW | GAN-TRIUMPH CO LTD | | | SCAC4 |
