| 1 | TWT | Transwest Airlines (Nig) | Callsign: Superior, | WAN | AVCODES |
| 2 | TWT | Transwisata Prima Aviation | Callsign: Transwisata, | RI | AVCODES |
| 3 | TWTB | THIRD WHEEL TRAILERS INC | | | SCAC4 |
| 4 | TWTC | TRANZEO WIRELESS TECHNOLOGIES INC | | | SCAC4 |
| 5 | TWTD | TOWER TRANSPORT | | | SCAC4 |
| 6 | TWTH | TRI-WAY TRANSPORT LTD | | | SCAC4 |
| 7 | TWTI | TOWNES TRUCKING INC | | | SCAC4 |
| 8 | TWTN | T-W TRANSPORT, INC | | | SCAC1 |
| 9 | TWTN | T-W TRANSPORT INC | | | SCAC4 |
| 10 | TWTO | T W TRUCKING | | | SCAC4 |
| 11 | TWTP | TOWN TRANSPORT LTD | | | SCAC4 |
| 12 | TWTT | T W TRANSPORT INC | | | SCAC4 |
| 13 | TWTU | HONGKONG TOP WISHING TRADE COMPANY | | | SCAC4 |
| 14 | TWTV | TROWEL TRADES SUPPLY INC | | | SCAC4 |
| 15 | TWTW | TWENTY TWO (22) DRAGONS | | | SCAC4 |
| 16 | TWTX | The Wheatcroft Co. | 7/1930 | | NAKINA |
| 17 | TWTX | THE WHEATCROFT CO. | | | PWRC |
| 18 | TWTY | TRANSWAY TRUCKING CORP | | | SCAC4 |
