| 1 | TKA | Air Troika | Callsign: Troika, | RUS | AVCODES |
| 2 | TKA | Transliz Aviation (K) Ltd. | Callsign: Tourliz, | EAK | AVCODES |
| 3 | TKAB | T K TRUCKING LLC | | | SCAC4 |
| 4 | TKAB | Svenska Tågkompaniet AB | 1999 - | S | svenska-lok.se |
| 5 | TKAB | Svenska Tagkompaniet AB | 1999 - | S | TRAFFIC |
| 6 | TKAB | Svenska Tågkompagniet AB | | SE | VKM |
| 7 | TKAC | TRUCK AIR OF THE CAROLINAS, INC | | | SCAC1 |
| 8 | TKAE | TRU-KARE | | | SCAC4 |
| 9 | TKAF | TAKE ACTION NOW CORPORATION | | | SCAC4 |
| 10 | TKAG | TRUCK ACCESSORIES GROUP LLC | | | SCAC4 |
| 11 | TKAL | TRUCKALOCITY | | | SCAC4 |
| 12 | TKAM | THANKS A LOT | | | SCAC4 |
| 13 | TKANKO | Toyokanko | Part of the Keikyu Group | J | TRAFFIC |
| 14 | TKAQ | TRANSPORT KATO | | | SCAC4 |
| 15 | TKAR | TRUCK AMERICAN CARRIERS INC | | | SCAC4 |
| 16 | TKAS | TAKASE ADD SYSTEM INC | | | SCAC4 |
