| 1 | BU | Braathens ASA | ICAO: BRA, Callsign: Braathens, IATA Prefix: 154, ICAO callsign changed to Scanor. Formerly Braathens South American and Far East Airtransport A/S | N | AVCODES |
| 2 | BU | Braathens South American and Far East Air Transport | ICAO: BRA, IATA Prefix: 154, | N | AVCODES |
| 3 | BU | Braathens ASA | ICAO: BRA, Callsign: Scanor, IATA Prefix: 154, ICAO callsign changed from Braathens. ICAO designator changed to CNO. Formerly Braathens South American and Far East Airtransport A/S | N | AVCODES |
| 4 | BU | SAS Braathens AS | ICAO: CNO, Callsign: Scanor, IATA Prefix: 154, Integrated into mainline SAS 01 June 2007. Name changed from Braathens ASA. ICAO designator changed from BRA. ICAO callsign changed from Braathens. Formerly Braathens South American and Far East Airtransport A/S | N | AVCODES |
| 5 | BU | Compagnie Africaine d'Aviation CAA | ICAO: FPY, Callsign: Africompany, IATA Designator changed from E9 | ZRE | AVCODES |
| 6 | BU | Compagnie Africaine d'Aviation | | ZRE | AVCODES |
| 7 | BUA | Business Aviation A/S | Callsign: Busyair, | DK | AVCODES |
| 8 | BUAA | BUSK, A A MOVING & STORAGE | | | SCAC3 |
| 9 | BUAA | BUSBY ENTERPRISES LTD | | | SCAC4 |
| 10 | BUAF | British United Air Ferries | | GB | TRAFFIC |
| 11 | BUAG | BUGATTI FREIGHT INTL (USA) INC | | | SCAC4 |
| 12 | BUAH | BURR, RALPH E | | | SCAC3 |
| 13 | BUAH | BURKRAFT SERVICES | | | SCAC4 |
| 14 | BUAJ | BURKE, ALFRED J & SONS LTD | | | SCAC4 |
| 15 | BUAK | BUENA TRUCK INC | | | SCAC3 |
| 16 | BUAM | BRUA, MIKE | | | SCAC3 |
| 17 | BUAN | BUANNO TRANSPORTATION CO | | | SCAC3 |
| 18 | BUAP | BUMPERS OIL CO LLC | | | SCAC4 |
| 19 | BUAQ | BRUE, REUBEN A | | | SCAC3 |
| 20 | BUAS | BUCHANAN & SONS | | | SCAC3 |
| 21 | BUAT | BURLINGTON AUTOMATION CORPORATION | | | SCAC4 |
| 22 | BUB | Air Bourbon | IATA: ZN, Callsign: Bourbon, Commenced operations on 07 June 2003. Ceased operations in December 2004. | REU | AVCODES |
| 23 | BUB | Air Bourbon | IATA: ZB | | ICAO1 |
| 24 | BUB | Brenner & Brenner Dampflokomotiven Betriebsgesellschaft mbH | | AT | VKM |
| 25 | BUBB | BUSTOS BROTHERS TRUCKING | | | SCAC4 |
| 26 | BUBD | BURROWS, BILLY D | | | SCAC3 |
| 27 | BUBG | BUCH BROKERAGE & CO INC | | | SCAC3 |
| 28 | BUBH | BUTTEL BROTHERS | | | SCAC3 |
| 29 | BUBJ | BLUE BOY TRANSPORTATION SERVICES IN | | | SCAC3 |
| 30 | BUBK | BUSH BROKERAGE INC | | | SCAC3 |
| 31 | BUBL | BUBLITZ, DALE | | | SCAC3 |
| 32 | BUBM | BUBER, THOMAS E INC | | | SCAC3 |
| 33 | BUBM | BAKERS SUPPLY CO INC | | | SCAC4 |
| 34 | BUBN | BUCHNOFF BROS TRUCKING | | | SCAC3 |
| 35 | BUBO | BUHR BROS TRANSPORT INC | | | SCAC3 |
| 36 | BUBO | BUHR BROS TRANSPORT INC | | | SCAC4 |
| 37 | BUBP | BUREAU OF BUSINESS PRACTICE | | | SCAC3 |
| 38 | BUBR | BURGER BROS | | | SCAC3 |
| 39 | BUBS | BUTLER BROS INC | | | SCAC3 |
| 40 | BUBT | BURCO BROS TRUCKING LTD | | | SCAC3 |
| 41 | BUBV | BAUERS, BOB TOWING SERVICE INC | | | SCAC3 |
| 42 | BUC | Bulgarian Air Charter Ltd. | IATA: H6, Callsign: Bulgarian Charter, Name changed to European Air Charter. | BG | AVCODES |
| 43 | BUC | European Air Charter Ltd. | IATA: H6, Callsign: Eurocharter, Name changed from Bulgarian Air Charter. ICAO callsign changed from Bulgarian Charter. | BG | AVCODES |
| 44 | BUC | Bulgarian Air Charter | | | ICAO1 |
| 45 | BUCA | BUCHANAN TRUCKING CO | | | SCAC3 |
| 46 | BUCA | BUCHANAN OIL CO | | | SCAC4 |
| 47 | BUCC | BURNETT CONSTRUCTION COMPANY | | | SCAC3 |
| 48 | BUCC | BUCCI STABLES | | | SCAC4 |
| 49 | BUCD | BUCHHOLZ, A TRUCKING | | | SCAC3 |
| 50 | BUCE | BUCCANEER ENTERPRISES INC | | | SCAC4 |
| 51 | BUCF | BUCHANAN TRANSPORT INC | | | SCAC3 |
| 52 | BUCG | BURNETT, C G | | | SCAC3 |
| 53 | BUCH | BUCHANAN OIL CORPORATION | | | SCAC4 |
| 54 | BUCI | BUCCANEER MOVING & STORAGE INC | | | SCAC3 |
| 55 | BUCJ | BACKHAULING USA CORP | | | SCAC4 |
| 56 | BUCK | BUCKLER TRANSPORT INC | | | SCAC4 |
| 57 | BUCL | BUCKEYE STORAGE COMPANY, THE | | | SCAC3 |
| 58 | BUCM | BUCKLEY CARTAGE LIMITED | | | SCAC4 |
| 59 | BUCN | BOUCHER TRUCKING | | | SCAC4 |
| 60 | BUCO | BURRARD CARTAGE CO LTD | | | SCAC3 |
| 61 | BUCP | BUCKLEY, JOSEPH F, JR | | | SCAC3 |
| 62 | BUCP | BUCKEYE TRANSPORTATION | | | SCAC4 |
| 63 | BUCR | BURCH TRANSPORT INC | | | SCAC3 |
| 64 | BUCR | BUNCH TRANSPORT INC | | | SCAC4 |
| 65 | BUCS | BUCHMEIER & SONS INC | | | SCAC3 |
| 66 | BUCS | BUCKEYE LOGISTICS LLC | | | SCAC4 |
| 67 | BUCT | BUTLER, CHARLES T JR | | | SCAC4 |
| 68 | BUCU | GEORG BUCHNER INTERN. SPEDITION GMBH | | D | BIC |
| 69 | BUCU | GEORG BUCHNER INTERN SPEDITION GMBH | | | SCAC4 |
| 70 | BUCW | BUTLER CARRIERS INC | | | SCAC3 |
| 71 | BUCY | BURGENER CONTRACT CARRIERS | | | SCAC3 |
| 72 | BUD | Air Budapest Club Ltd. | Callsign: Buddy, | H | AVCODES |
| 73 | BUDA | BUDS WRECKER SERVICE | | | SCAC3 |
| 74 | BUDB | BUDS WRECKER SERVICE | | | SCAC3 |
| 75 | BUDB | BOURDEAU BROS INC | | | SCAC4 |
| 76 | BUDD | | | USA | TRAFFIC |
| 77 | BUDE | BURKHEAD, JOHN L INC | | | SCAC4 |
| 78 | BUDF | BUD-DEE WHOLESALE LUMBER INC | | | SCAC3 |
| 79 | BUDI | BUD'S DELIVERY, INC | | | SCAC3 |
| 80 | BUDI | BUDS SALADS | | | SCAC4 |
| 81 | BUDJ | BUTLER, DALE | | | SCAC3 |
| 82 | BUDK | BUNDAY, GARY TRUCKING | | | SCAC3 |
| 83 | BUDL | BUDREAU, LARRY TRUCKING | | | SCAC4 |
| 84 | BUDM | BUDMAR TRANSPORT INC | | | SCAC4 |
| 85 | BUDN | BUDS SERVICE CENTER LTD | | | SCAC3 |
| 86 | BUDO | BUDDYS DELIVERY SERVICE | | | SCAC3 |
| 87 | BUDP | BUDS MOVING & STORAGE INC | | | SCAC3 |
| 88 | BUDQ | BUDS SERVICE & TRANSFER | | | SCAC3 |
| 89 | BUDR | BURNS, F J DRAYING | | | SCAC3 |
| 90 | BUDS | BURLESON DISTRIBUTOR | | | SCAC3 |
| 91 | BUDS | BURLESON DISTRIBUTORS INC | | | SCAC4 |
| 92 | BUDT | BUDRECK TRUCK LINES INC | | | SCAC3 |
| 93 | BUDT | BUDRECK TRUCK LINES INC | | | SCAC4 |
| 94 | BUDU | CAMECO CORPORATION | | CDN | BIC |
| 95 | BUDU | BUDGET CONTAINER INC | | | SCAC3 |
| 96 | BUDU | BUDGET CONTAINER INC | | | SCAC4 |
| 97 | BUDV | BUDGET ENVIRONMENTAL DISPOSAL | | | SCAC4 |
| 98 | BUDW | BUDWAY EXPRESS | | | SCAC3 |
| 99 | BUDW | BUDWAY EXPRESS | | | SCAC4 |
| 100 | BUDX | The Budd Co. (temporary) | 1/1994-7/2005 (not listed) | | NAKINA |
