| 1 | TWM | Transairways | Rebranded as Kaya Airlines. ICAO designator changed to KYY. | MOC | AVCODES |
| 2 | TWM | Transairways | | | ICAO1 |
| 3 | TWMC | TWO AMIGOS & CO | | | SCAC4 |
| 4 | TWMD | T W MOTORSPORTS LLC | | | SCAC4 |
| 5 | TWME | TRANSWAYS MOTOR EXPRESS CO | | | SCAC1 |
| 6 | TWME | TRANSWAYS MOTOR EXPRESS CO INC | | | SCAC4 |
| 7 | TWMID | Travel West Midlands | City: Birmingham | GB | TRAFFIC |
| 8 | TWML | T W METALS INC | | | SCAC4 |
| 9 | TWMT | TRANSPORT WATSON MONTREAL LTEE | | | SCAC4 |
| 10 | TWMU | 4TESS SP. Z.O.O | | PL | BIC |
| 11 | TWMU | TRANSWORLD MARINE AGENCY | | | SCAC4 |
| 12 | TWMX | The Whitmore Manufacturing Co. | 8/1920-7/1923; 7/1937-4/1961 (not listed) | | NAKINA |
| 13 | TWMX | The Whitmore Manufacturing Co. | 1/52-4/61 | | NRHS |
| 14 | TWMX | WHITMORE MFG. CO. | | | PWRC |
