| 1 | BTR | Botir Avia | IATA: B8, Callsign: Botir-Avia, Ceased operations. | KS | AVCODES |
| 2 | BTR | Botir-Avia | | | ICAO1 |
| 3 | BTR | BUSH TERMINAL RAILROAD CO. | | | PWRC |
| 4 | BTR | BOUNDARY TRAIL RAILWAY COMPANY INC | | | SCAC4 |
| 5 | BTRA | B TRANSFER INC | | | SCAC4 |
| 6 | BTRC | BROWN TRANSFER COMPANY, THE | | | SCAC3 |
| 7 | BTRC | BOSLEY TOWING RECOVERY | | | SCAC4 |
| 8 | BTRD | BUTLER REFRIGERATED DELIVERY INC | | | SCAC3 |
| 9 | BTRD | BATON ROUGE WATER | | | SCAC4 |
| 10 | BTRF | BOTELLO ROQUE, FELICITAS | | | SCAC4 |
| 11 | BTRG | BELL TRUCKING COMPANY | | | SCAC3 |
| 12 | BTRH | BUTTERWORTH & SONS | | | SCAC3 |
| 13 | BTRH | BATES, RALPH | | | SCAC4 |
| 14 | BTRI | BRAUNSTEIN TRUCKING CO | | | SCAC3 |
| 15 | BTRI | BILLMAN TRUCKING INC | | | SCAC4 |
| 16 | BTRJ | BUE TRANSFER | | | SCAC3 |
| 17 | BTRM | BREWER TRUCKING | | | SCAC3 |
| 18 | BTRM | BROSTROM TANKERS S A S | | | SCAC4 |
| 19 | BTRO | BETTER ROUTE TRANSPORTATION SYSTEMS | | | SCAC4 |
| 20 | BTRP | BASS TRANSPORTATION CO | | | SCAC3 |
| 21 | BTRR | B & T TRANSPORTATION | | | SCAC3 |
| 22 | BTRR | BELL, T R TRUCKING | | | SCAC4 |
| 23 | BTRS | BARAJAS TRUCKING | | | SCAC4 |
| 24 | BTRT | BOATNERS TRUCKING CO INC | | | SCAC3 |
| 25 | BTRU | LLC BOTRANS | | | SCAC4 |
| 26 | BTRX | Rocky Mountain Transportation Services | 7/2000-7/2005 | | NAKINA |
| 27 | BTRX | Rocky Mountain Transportation Services | Jul-00 | | NRHS |
| 28 | BTRX | ROCKY MOUNTAIN TRANSPORTATION SERVICES | | | PWRC |
| 29 | BTRX | ROCKY MOUNTAIN TRANSPORTATION SERVICES | | | PWRC |
| 30 | BTRX | Rocky Mountain Transportation Services (Inspiration Holdings) | | | RSRV |
| 31 | BTRX | ROCKY MOUNTAIN TRANSPORTATION SERVI | | | SCAC4 |
| 32 | BTRY | BAYFIELD TRANSFER RWY | | | PWRC |
| 33 | BTRY | BEELER TRUCKING | | | SCAC3 |
