| 1 | BKS | Aviaexpress Cruise, Joint-Stock Company | Callsign: Aviacruise, | RUS | AVCODES |
| 2 | BKS | Atlantic Coast Aircraft Services, Inc. | Callsign: Berks, Established in 1997. ICAO designator changed to BKS. ICAO callsign changed to Berks. | USA | AVCODES |
| 3 | BKSB | BLAZER, KENNY SCHOOL BUS TRANSPORTA | | | SCAC3 |
| 4 | BKSB | BRKS AUTO | | | SCAC4 |
| 5 | BKSC | BARKS TRUCKING CO | | | SCAC3 |
| 6 | BKSD | BERKS PRODUCTS CORPORATION | | | SCAC4 |
| 7 | BKSE | BLACKSTONE TRUCKING | | | SCAC4 |
| 8 | BKSF | BLICKENSTAFF, LEROY | | | SCAC3 |
| 9 | BKSG | BEKAERT SOLUTIONS DE CARDAGE INC | | | SCAC4 |
| 10 | BKSH | BULK SHIPPERS TRANSPORT | | | SCAC3 |
| 11 | BKSI | BECKS TRANSFER INC | | | SCAC3 |
| 12 | BKSI | BRACKS TRANSPORT TRUCKING INC | | | SCAC4 |
| 13 | BKSK | BUCKS TRUCKING | | | SCAC3 |
| 14 | BKSK | BOOK, S TRUCKING INC | | | SCAC4 |
| 15 | BKSL | BLACKSBURG LIMOUSINE SERVICE | | | SCAC3 |
| 16 | BKSL | BAKKEN, STEVEN L | | | SCAC4 |
| 17 | BKSM | BUCKS MOVING & STORAGE | | | SCAC3 |
| 18 | BKSM | BERNARD, K & S INVESTMENTS INC | | | SCAC4 |
| 19 | BKSN | BLACKS TRANSPORT LIMITED | | | SCAC3 |
| 20 | BKSN | BLACKS TRANSPORT LIMITED | | | SCAC4 |
| 21 | BKSO | BROOKS TRUCKING | | | SCAC3 |
| 22 | BKSP | BTI SPECIAL COMMODITIES INC | | | SCAC3 |
| 23 | BKSP | BTI SPECIAL COMMODITIES INC | | | SCAC4 |
| 24 | BKSQ | BROOKS OIL COMPANY | | | SCAC3 |
| 25 | BKSQ | BIRKS COMPANY, THE | | | SCAC4 |
| 26 | BKSR | BLACK SEA SHIPPING CO. | | | SCAC3 |
| 27 | BKSR | BROKEN SPRINGS RANCH | | | SCAC4 |
| 28 | BKSS | BECKER & SONS TRUCKING | | | SCAC3 |
| 29 | BKST | BROOKS TRANSFER & STORAGE CO, INC | | | SCAC3 |
| 30 | BKST | BROOKS TRANSFER & STORAGE CO, INC | | | SCAC4 |
| 31 | BKSV | BAKER TRUCK SERVICE INC | | | SCAC3 |
| 32 | BKSW | BRINKS WAREHOUSING INC | | | SCAC3 |
| 33 | BKSY | BROOKE SYSTEMS INC | | | SCAC4 |
