| 1 | GIC | Compagnie de Bauxites de Guinee | Callsign: Cebege, | GUI | AVCODES |
| 2 | GIC | Compagnie de Bauxites de Guinee | | | ICAO1 |
| 3 | GICI | GIBSON INTERNATIONAL CARRIERS INC | | | SCAC4 |
| 4 | GICL | GORGONIA DI NAVIGAZIONE SRL | | | SCAC4 |
| 5 | GICN | GARDEN ISLE COURIER INC | | | SCAC4 |
| 6 | GICO | GOLD, I CORP | | | SCAC4 |
| 7 | GICP | GUARDIAN INDUSTRIES CANADA CORP | | | SCAC4 |
| 8 | GICQ | GARCIA, RAYMUNDO | | | SCAC4 |
| 9 | GICU | EMPRESA DE GASES INDUSTRIALES | | C | BIC |
| 10 | GICU | EMPRESA DE GASES INDUSTRIALES | | | SCAC4 |
| 11 | GICX | Gateway Investment Co. | added 7/1966; 10/1966; eliminated 7/1967 | | NAKINA |
| 12 | GICX | Gateway Investment Co. | added 7/66; 10/66; eliminated 7/67 | | NRHS |
| 13 | GICX | GATEWAY INVESTMENT CO. | | | PWRC |
| 14 | GICZ | GIBSON CO-OP | | | PWRC |
