| 1 | BTQ | Boutique Air, Inc. | IATA: 4B, Callsign: Boutique, Name changed from MC Aviation Corp d/b/a Boutique Air, Inc. | USA | AVCODES |
| 2 | BTQA | BARTLETT TRANSPORTATION | | | SCAC3 |
| 3 | BTQB | BROSH TRANSPORTATION | | | SCAC3 |
| 4 | BTQC | B T Q CARTAGE COMPANY INC | | | SCAC3 |
| 5 | BTQD | BOSIK TECHNOLOGIES LTD | | | SCAC4 |
| 6 | BTQH | BATAN SHIPPING LTD. | | | SCAC3 |
| 7 | BTQI | B-T INC | | | SCAC3 |
| 8 | BTQI | B-T INC | | | SCAC4 |
| 9 | BTQJ | BEELIADA TRANSPORTATION LLC | | | SCAC4 |
| 10 | BTQK | BULLS TANKREDERI A S | | | SCAC3 |
| 11 | BTQL | BLUE TAR LOGISTICS LLC | | | SCAC4 |
| 12 | BTQM | BRITTON TRUCKING | | | SCAC3 |
| 13 | BTQN | B T N EXPRESS INC | | | SCAC3 |
| 14 | BTQO | BTI | | | SCAC3 |
| 15 | BTQP | B T TRANSPORT | | | SCAC3 |
| 16 | BTQP | BENAMOR TRADING CORP | | | SCAC4 |
| 17 | BTQQ | BAILESS TRUCKING INC | | | SCAC4 |
| 18 | BTQS | BTS EXPRESS INC | | | SCAC4 |
| 19 | BTQT | B & T TRUCKING | | | SCAC3 |
| 20 | BTQT | B T S ABBOTSFORD B C (TRANSPORT) | | | SCAC4 |
| 21 | BTQW | BALTIC TRADING LIMITED | | | SCAC4 |
| 22 | BTQY | BASE TRANSPORT ONTARIO LTD | | | SCAC4 |
