| 1 | TKS | TransClassService | | RU | TRAFFIC |
| 2 | TKSE | TRAK SPORTS INC | | | SCAC4 |
| 3 | TKSG | TRANSPORTES KOMITAN S DE RL DE | | | SCAC4 |
| 4 | TKSGE | Tyczka Kohlensäure GmbH & Co KG | | DE | VKM |
| 5 | TKSH | TEEKAY CORPORATION | | | SCAC4 |
| 6 | TKSI | TRUCKS INC | | | SCAC4 |
| 7 | TKSJ | TRANSMEDIK SPECIALIZED INC | | | SCAC4 |
| 8 | TKSK | TRUCKING SYSTEMS INC | | | SCAC4 |
| 9 | TKSP | TROKE, SHEILA | | | SCAC4 |
| 10 | TKST | TKS EXPEDITORS | | | SCAC4 |
| 11 | TKSU | TERMOS KONTEINER | | RUS | BIC |
| 12 | TKSU | TERMOSKONTAINER LTD | | | SCAC4 |
| 13 | TKSV | TORAK SERVICES LTD | | | SCAC4 |
| 14 | TKSX | Tank Car Service Co. | 8/1920 | | NAKINA |
| 15 | TKSX | TANK CAR SERVICE CO. | | | PWRC |
