| 1 | GBA | Gulf Air Bahrain B.S.C. | Callsign: Gulf Bahrain, | BRN | AVCODES |
| 2 | GBA | Georgian Bay Airways | Callsign: Georgian Bay, | CDN | AVCODES |
| 3 | GBA | Gulf Air Bahrain | IATA: GF | | ICAO1 |
| 4 | GBAC | GURRISI BROTHERS AUTO & TRUCK SALES | | | SCAC4 |
| 5 | GBAD | GARCIA BLANCAS, AMADO | | | SCAC4 |
| 6 | GBAE | G & B FARMS LTD | | | SCAC4 |
| 7 | GBAG | Gelsenkirchener Bergwerks-AG | | D | TRAFFIC |
| 8 | GBAJ | GBA TRANSPORT LLC | | | SCAC4 |
| 9 | GBAK | G B TRANSPORT LLC | | | SCAC4 |
| 10 | GBAM | GLOBAL MESSENGER CORPORATION | | | SCAC4 |
| 11 | GBAN | GLOBAL TRANS AMERICA INC | | | SCAC4 |
| 12 | GBAP | GB AND SONS TRANSPORT INC | | | SCAC4 |
| 13 | GBAT | GLOBAL LOGISTICS SOLUTIONS | | | SCAC4 |
| 14 | GBAU | BAUTRU ET CIE | | | SCAC3 |
