| 1 | TRK | Air Truck Lineas Aereas, SA | IATA: ZH, Callsign: Air Truck, Designator ZH recalled by IATA | E | AVCODES |
| 2 | TRK | Turkuaz Airlines | IATA: HK, Desinator HK* recalled by IATA | TR | AVCODES |
| 3 | TRK | Turkish Airlines General Aviation | Callsign: Turkish Republic, | TR | AVCODES |
| 4 | TRK | | | TM | TRAFFIC |
| 5 | TRK | Turkmenistan Railways | | TM | VKM |
| 6 | TRKA | TRUCKING SPECIALISTS INC | | | SCAC4 |
| 7 | TRKC | T R & R TRUCKING CORPORATION | | | SCAC4 |
| 8 | TRKD | TWO RIVERS FS INC | | | SCAC4 |
| 9 | TRKI | TRUCK POOL SYSTEMS INC | | | SCAC4 |
| 10 | TRKK | Przedsiębiorstwo Budownictwa Specjalistycznego TRANSKOL Sp. z o.o. | | PL | VKM |
| 11 | TRKL | TRI-TRUCKING LLC | | | SCAC4 |
| 12 | TRKOW | Towarzystwo Rodzina Kolejarska | | PL | VKM |
| 13 | TRKP | TRACK EXPRESS SERVICES | | | SCAC4 |
| 14 | TRKR | TRUKLINE | | | SCAC4 |
| 15 | TRKU | TURKON CONTAINER TRANSPORTATION&SHIPPING | | TR | BIC |
| 16 | TRKU | TURKON LINE | | | SCAC1 |
| 17 | TRKU | TURKON CONTAINER TRANSPORTATION & S | | | SCAC4 |
