| 1 | TBO | Taxis Aereos de Caborca, S.A. de C.V. | Callsign: Taxis Caborca, | MEX | AVCODES |
| 2 | TBO | Taxis Aereos de Los Cabos, S.A. de C.V. | Callsign: Aero Cabos, | MEX | AVCODES |
| 3 | TBO | RWS Aviation, LLC | Callsign: Cartillion, | USA | AVCODES |
| 4 | TBO | Aero Taxi de Los Cabos | | | ICAO1 |
| 5 | TBOA | TIPPECANOE BOATS | | | SCAC4 |
| 6 | TBOB | TRANS BOB | | | SCAC4 |
| 7 | TBOG | TBO TRANSPORTATION | | | SCAC4 |
| 8 | TBOI | TRIMBLE OIL INC | | | SCAC4 |
| 9 | TBOK | TRANSBOOK LOGISTICS LLC | | | SCAC4 |
| 10 | TBOL | THUNDERBOLT TRANSPORTATION SERVICES | | | SCAC3 |
| 11 | TBOM | T-BOW MOVING & STORAGE | | | SCAC3 |
| 12 | TBON | TOBON TRUCKING CO | | | SCAC3 |
| 13 | TBOO | TRUMBO OIL CO INC | | | SCAC4 |
| 14 | TBOP | TRI-BORO OIL COMPANY | | | SCAC4 |
| 15 | TBOR | TREBOR TRANSPORT | | | SCAC3 |
| 16 | TBOR | TRANSPORTES BOMAR | | | SCAC4 |
| 17 | TBOS | TRANSBOIS CANADA LTEE | | | SCAC4 |
| 18 | TBOT | TOMBRO TRUCKING LIMITED | | | SCAC3 |
| 19 | TBOT | TOMBRO TRUCKING LIMITED | | | SCAC4 |
| 20 | TBOW | T-BOW MOVING & STORAGE OF WOODLAND | | | SCAC4 |
| 21 | TBOX | Bell Oil & Gas Co. | 8/1920 | | NAKINA |
| 22 | TBOX | TTX Co. | added 1/2003; 7/2005 | | NAKINA |
| 23 | TBOX | TTX Co. | added 1/2003 | | NAKINA |
| 24 | TBOX | *BELL OIL & GAS CO. | | | PWRC |
| 25 | TBOX | +TTX CO. | | | PWRC |
| 26 | TBOX | TTX Corporation | | | RSRV |
| 27 | TBOX | TTX COMPANY | | | SCAC4 |
| 28 | TBOY | TRUBOY FREIGHT INTERNATIONAL INC | | | SCAC4 |
