| 1 | TBR | Tubelair | Callsign: Tubelair, | TN | AVCODES |
| 2 | TBR | Air BTR Ltd | Callsign: Thracian, Established on 25 January 2012. Ceased Operations. | BG | AVCODES |
| 3 | TBR | Tubelair | | | ICAO1 |
| 4 | TBR | Touristenbahnen im Rheinland GmbH | | DE | VKM |
| 5 | TBRA | TAUBRA CORPORATION | | | SCAC3 |
| 6 | TBRC | TABOR CENTER TRANSPORTATION CO INC | | | SCAC3 |
| 7 | TBRE | TIMBERLINE ENTERPRISES INC | | | SCAC3 |
| 8 | TBRE | TRANSPORT ROBERT BOIRIN INC | | | SCAC4 |
| 9 | TBRG | TRUCKING BY RICK GARCIA | | | SCAC3 |
| 10 | TBRH | THRASHER BROTHERS TOURS | | | SCAC3 |
| 11 | TBRI | TRA-BAR INC | | | SCAC3 |
| 12 | TBRI | TZETZO BROS INC | | | SCAC4 |
| 13 | TBRJ | THRASHER BROTHERS TOURS | | | SCAC4 |
| 14 | TBRL | Trans-Bridge Lines | | USA | TRAFFIC |
| 15 | TBRO | THREE BROTHERS TRUCKING | | | SCAC3 |
| 16 | TBRO | TIMBER RIVER FARM COUNTRY ANTIQUES | | | SCAC4 |
| 17 | TBRS | TABISH BROTHERS TRUCKING (A PARTNER | | | SCAC3 |
| 18 | TBRT | THOMAS, BRYAN TRUCKING | | | SCAC3 |
| 19 | TBRT | TRANSPORT BARRAUTE INC | | | SCAC4 |
| 20 | TBRV | TIMBREN INDUSTRIES INC | | | SCAC4 |
| 21 | TBRX | The Taylor Rail Group, Inc. | 7/2000-7/2005 (not listed) | | NAKINA |
| 22 | TBRX | The Taylor Rail Group, Inc. | Jul-00 | | NRHS |
| 23 | TBRX | TAYLOR RAIL GROUP, INC. | | | PWRC |
| 24 | TBRX | Taylor Rail Group | | | RSRV |
| 25 | TBRX | Taconic & Berkshire Rail Technologies | | USA | TRAFFIC |
| 26 | TBRY | Thermal Belt Ry. | 1/1994-7/2005 | | NAKINA |
| 27 | TBRY | Thermal Belt Ry. | 1/94-7/2000 | | NRHS |
| 28 | TBRY | THERMAL BELT RAILWAY | | | PWRC |
| 29 | TBRY | Thermal Belt Railway | | | RSRV |
| 30 | TBRY | THERMAL BELT RAILWAY | | | SCAC3 |
