| 1 | BLS | Perimeter Aviation LP d/b/a Bearskin Airlines | IATA: JV, Callsign: Bearskin, IATA Prefix: 632, Name changed from Bearskin Lake Air Service Limited | CDN | AVCODES |
| 2 | BLS | Bearskin Lake Air Service Limited | Callsign: Bearskin, Name changed to Perimeter Aviation LP d/b/a Bearskin Airlines. | CDN | AVCODES |
| 3 | BLS | Bearskin Lake Air Service | IATA: JV | | ICAO1 |
| 4 | BLS | BLS AG (Bern-Lötschberg-Simplon-Bahn) | | CH | TRAFFIC |
| 5 | BLS | BLS Lötschbergbahn AG | | CH | VKM |
| 6 | BLSA | BLUE STAR TRUCKING INC | | | SCAC3 |
| 7 | BLSB | BLISS, ART TRUCKING INC | | | SCAC3 |
| 8 | BLSB | BARNALA ENTERPRISES INC | | | SCAC4 |
| 9 | BLSC | BALLEW STORAGE COMPANY INC | | | SCAC3 |
| 10 | BLSC | BLS Cargo | | CH | TRAFFIC |
| 11 | BLSC | BLS Cargo AG | | CH | VKM |
| 12 | BLSD | BLUE STREAK DELIVERY | | | SCAC3 |
| 13 | BLSE | BELL SERVICES INC | | | SCAC3 |
| 14 | BLSE | BEST LOGISTICS SERVICES INC | | | SCAC4 |
| 15 | BLSG | BALLARD STORAGE & TRANSFER | | | SCAC3 |
| 16 | BLSG | BALTIC SUN II SHIPPING LIMITED VALE | | | SCAC4 |
| 17 | BLSH | BLASTECH CORPORATION | | | SCAC4 |
| 18 | BLSI | BOWLINE SHIPPING S A | | | SCAC4 |
| 19 | BLSJ | BALSTERS, J | | | SCAC3 |
| 20 | BLSK | BUDAMAR LOGISTICS, a.s. | | SK | VKM |
| 21 | BLSM | BLUE STAR MOTOR LINES INC | | | SCAC3 |
| 22 | BLSM | BLUE SPECIAL MARITIME ENTERPRISE | | | SCAC4 |
| 23 | BLSN | BLUE STONE TRANSPORT INC | | | SCAC3 |
| 24 | BLSO | BALL & SON TRUCKING | | | SCAC3 |
| 25 | BLSO | BEALS TRANSPORT INC | | | SCAC4 |
| 26 | BLSP | BELS PRODUCE CO INC | | | SCAC3 |
| 27 | BLSP | BILLS SPEED SHOP | | | SCAC4 |
| 28 | BLSQ | BLUE STREAK CARRIERS | | | SCAC4 |
| 29 | BLSR | BEALINE SERVICE CO INC | | | SCAC3 |
| 30 | BLSR | BEALINE SERVICE COMPANY INC | | | SCAC4 |
| 31 | BLSR | BLS Rail AB | | SE | VKM |
| 32 | BLSS | BILLS TRUCKING SERVICE INC | | | SCAC3 |
| 33 | BLSS | BLESS TRUCKING INC | | | SCAC4 |
| 34 | BLST | BLUE STAR TRANSPORTATION | | | SCAC4 |
| 35 | BLSU | ADMIRAL CONTAINER LINES INC LIMITED | | M | BIC |
| 36 | BLSU | BLACK SEA SHIPPING COMPANY | | | SCAC3 |
| 37 | BLSU | TETRA LEASING AND TRADING INC | | | SCAC4 |
| 38 | BLSV | B L SERVICE CO | | | SCAC3 |
| 39 | BLSV | BLUE SKY VAN LINES INC | | | SCAC4 |
| 40 | BLSW | BLACK SWAN TRUCKING INC | | | SCAC4 |
| 41 | BLSX | BEACON LOCOMOTIVE SERVICES | | | PWRC |
| 42 | BLSX | BEACON LOCOMOTIVE SERVICES | | | SCAC4 |
| 43 | BLSY | BENORE LOGISTIC SYSTEMS INC | | | SCAC4 |
