| 1 | GIR | Guinee Air Union, S.A. | Callsign: Guinee Union, | GUI | AVCODES |
| 2 | GIR | Air Guinee International | Callsign: Guinee International, Did not commence operations. | GUI | AVCODES |
| 3 | GIRA | GIROUX, M L R | | | SCAC4 |
| 4 | GIRD | GIRARD LOGISTICS LLC | | | SCAC4 |
| 5 | GIRE | GIRODAY, MATT ENTERPRISES LTD | | | SCAC4 |
| 6 | GIRF | GIRAFFE BEVERAGES INC | | | SCAC4 |
| 7 | GIRO | CAMIONNAGE R GIROUX ET FILS INC | | | SCAC4 |
| 8 | GIRX | Georgia Industrial Realty Co. | added 10/1963; 7/1965; eliminated 4/1966; added 7/1974; eliminated 10/1974 | | NAKINA |
| 9 | GIRX | Georgia Industrial Realty Co. | 7/65; eliminated 4/66; added 7/74; eliminated 10/74 | | NRHS |
| 10 | GIRX | GEORGIA INDUSTRIAL REALTY CO. | | | PWRC |
