| 1 | BC | Skymark Airlines Co. Ltd. | ICAO: SKY, Callsign: Skymark, Designator BC reinstated by IATA | J | AVCODES |
| 2 | BC | Air Jet | ICAO: AIJ, Callsign: Air Jet, Designator BC recalled by IATA | F | AVCODES |
| 3 | BC | Brymon Aviation Ltd. d/b/a Brymon Airways | ICAO: BRY, Callsign: Brymon, Designator BC recalled by IATA | GB | AVCODES |
| 4 | BC | Advance Leasing Company | IATA designator changed to 4G* | USA | AVCODES |
| 5 | BC | British Insulated Callender's Cable Ltd. | Callsign: Bical, | GB | AVCODES |
| 6 | BC | European Air Transport | ICAO: BCS, Callsign: Bravo Charlie, | B | AVCODES |
| 7 | BC | Barre & Chelsea R.R. | 4/1938-7/1954 | | NAKINA |
| 8 | BC | Barre & Chelsea R.R. | 4/38-1/52 | | NRHS |
| 9 | BC | *BARRE & CHELSEA RAILROAD | | | PWRC |
| 10 | BC | *BOISE CASCADE CORP. | | | PWRC |
| 11 | BC | Belarus Railways | | BY | VKM |
| 12 | BC&A | BALTIMORE CHESAPEAKE & ATLANTIC RWY. | | | PWRC |
| 13 | BC&C | BUFFALO CREEK & GAULEY (WEST VIRGINIA) | | | PWRC |
| 14 | BCA | British Caledonian Airways Limited | IATA: BR, Callsign: Caledonian, Merged into British Airways BA/BAW. Name changed from Caledonian - British United Airways Ltd. | GB | AVCODES |
| 15 | BCA | Bulgarian Air Cargo | Callsign: Bul Air Cargo, | BG | AVCODES |
| 16 | BCA | Baltimore, Chesapeake & Atlantic Ry. Co. | 7/1923 | | NAKINA |
| 17 | BCA | Baltimore, Chesapeake & Atlantic Ry. Co. (Pennsylvania R.R.) | 7/1930 | | NAKINA |
| 18 | BCA | Baltimore, Chesapeake & Atlantic Ry. Co. | 23-Jul | | NRHS |
| 19 | BCA | PENNSYLVANIA RAILROAD [BALTIMORE CHESAPEAKE & ATLANTIC RWY.] | | | PWRC |
| 20 | BCAB | BEST CAB COMPANY | | | SCAC3 |
| 21 | BCAB | BULKLEY TRUCKING | | | SCAC4 |
| 22 | BCAB | Transportes de Baja California Azul y Blanco | | MEX | TRAFFIC |
| 23 | BCAC | BULLDOG CAB CO | | | SCAC3 |
| 24 | BCAD | BEST COURIER&DELIVERY SERVICE, | | | SCAC3 |
| 25 | BCAD | BEST COURIER AND DELIVERY SERVICE | | | SCAC4 |
| 26 | BCAF | BUICK CITY AIRFREIGHT | | | SCAC3 |
| 27 | BCAI | BCA INC | | | SCAC3 |
| 28 | BCAI | BLUE CIRCLE AUDIO INC | | | SCAC4 |
| 29 | BCAJ | BRACAMONTES, JOEL | | | SCAC3 |
| 30 | BCAL | BEARCAT LOGISTICS INC | | | SCAC4 |
| 31 | BCAO | BRUCE AUTO INC | | | SCAC3 |
| 32 | BCAO | B-CAL TRANSPORT | | | SCAC4 |
| 33 | BCAQ | B C MATERIALS AND EQUIPMENT CO INC | | | SCAC3 |
| 34 | BCAR | BUNDRANT CAR CARE INC | | | SCAC4 |
| 35 | BCAR | B Cargo | | B | TRAFFIC |
| 36 | BCAS | BOCAS DEL TORO COMPANIA ARMADORA S | | | SCAC3 |
| 37 | BCAT | BAGCRAFT CORPORATION OF AMERICA | | | SCAC4 |
| 38 | BCAV | BOBCAT SERVICES INC | | | SCAC3 |
| 39 | BCAX | Blue Circle Inc. | added 10/1990; 1/1994-7/2005 | | NAKINA |
| 40 | BCAX | Blue Circle Atlantic, Inc. | added 4/1987; eliminated 7/1988 | | NAKINA |
| 41 | BCAX | Blue Circle Atlantic, Inc., d/b/a Blue Cirle West | added 7/1988; eliminated 4/1989 | | NAKINA |
| 42 | BCAX | Blue Circle Atlantic, Inc. | added 4/1989; eliminated 10/1990 | | NAKINA |
| 43 | BCAX | Blue Circle Atlantic, Inc. | added 4/87; eliminated 7/88 | | NRHS |
| 44 | BCAX | Blue Circle Atlantic, Inc., d/b/a Blue Cirle West | added 7/88; eliminated 4/89 | | NRHS |
| 45 | BCAX | Blue Circle Atlantic, Inc. | added 4/89; eliminated 10/90 | | NRHS |
| 46 | BCAX | Blue Circle Inc. | added 10/90; 1/94-7/2000 | | NRHS |
| 47 | BCAX | BLUE CIRCLE, INC. [BLUE CIRCLE ATLANTIC, INC.] | | | PWRC |
| 48 | BCAX | Blue Circle | | | RSRV |
| 49 | BCAX | BLUE CIRCLE INC | | | SCAC4 |
| 50 | BCAX | Blue Circle Atlantic, Inc. | | USA | TRAFFIC |
| 51 | BCAY | BARCLAY TRUCKING CO | | | SCAC3 |
| 52 | BCB | Caribexpress | Callsign: Wavebird, | BDS | AVCODES |
| 53 | BCB | Carib Express | | | ICAO1 |
| 54 | BCB | Bayerische CargoBahn GmbH | Neu Ulm (Connex-Gruppe > Veolia Verkehr > Captrain) | D | privat-bahn.de |
| 55 | BCB | Bayern Cargo Bahn | | D | TRAFFIC |
| 56 | BCB | Bayerische Cargobahn | | DE | VKM |
| 57 | BCBB | B C TRUCKING LLC | | | SCAC4 |
| 58 | BCBC | BUFFALO CUSTOMHOUSE BRK | | | SCAC3 |
| 59 | BCBD | B C B DISPATCH INC | | | SCAC3 |
| 60 | BCBE | BURCH, BILLY E | | | SCAC3 |
| 61 | BCBF | BELANGER, CLAIRE | | | SCAC4 |
| 62 | BCBG | BOISE CASCADE BARGE LINES INC | | | SCAC3 |
| 63 | BCBI | B C COMPANY BROKERING INC | | | SCAC3 |
| 64 | BCBJ | B C CARRIERS LLC | | | SCAC4 |
| 65 | BCBK | BECKETT & BECKETT INC | | | SCAC4 |
| 66 | BCBL | BIBLER COMPANY | | | SCAC4 |
| 67 | BCBM | B C B M TRANSPORT INC | | | SCAC3 |
| 68 | BCBN | BCB INTERNATIONAL COURIERS | | | SCAC3 |
| 69 | BCBN | BLACK HAWK EXPRESS LLC | | | SCAC4 |
| 70 | BCBO | BRADEN COMPANY, THE | | | SCAC4 |
| 71 | BCBP | BRAMIC CREATIVE BUSINESS PRODUCTS L | | | SCAC4 |
| 72 | BCBQ | B C B INC | | | SCAC3 |
| 73 | BCBR | BELCHER, B L TRUCKING | | | SCAC4 |
| 74 | BCBT | B C G TRANSPORT INC | | | SCAC4 |
| 75 | BCBX | B. Cribari & Sons | 7/1935-1/1946 | | NAKINA |
| 76 | BCBX | B. Cribari & Sons | Apr-38 | | NRHS |
| 77 | BCBX | B. CRIBARI & SONS | | | PWRC |
| 78 | BCC | British Caledonian Airways (Charter) Limited | IATA: JB, | GB | AVCODES |
| 79 | BCC | Business Air Centre Co. Ltd. t/a Business Air | IATA: 8B, Callsign: Thai Biz, | T | AVCODES |
| 80 | BCC | Blue Circle Cement | ~Sorin Oprisan | GB | TRAFFIC |
| 81 | BCCB | B C COACH CORPORATION | | | SCAC3 |
| 82 | BCCB | BAY CITY TRUCKING CO INC | | | SCAC4 |
| 83 | BCCF | BRAZILIAN CANADIAN COFFEE CO LTD | | | SCAC4 |
| 84 | BCCH | BETHESDA CHEVY CHASE TRANSIT & STOR | | | SCAC3 |
| 85 | BCCH | BCC FREIGHT HAULERS INC | | | SCAC4 |
| 86 | BCCI | BATESVILLE CASKET COMPANY INC | | | SCAC3 |
| 87 | BCCI | BEST CAR COMPANY INC | | | SCAC4 |
| 88 | BCCJ | BOLING CONSTRUCTION LLC | | | SCAC4 |
| 89 | BCCK | BABCOCK OIL CO INC | | | SCAC4 |
| 90 | BCCL | BECAN CONSTRUCTION COMPANY OF ILLIN | | | SCAC3 |
| 91 | BCCL | BIG CANYON CONSTRUCTION AND LIVESTO | | | SCAC4 |
| 92 | BCCM | B C COMPANY TRANSPORTATION INC | | | SCAC3 |
| 93 | BCCN | BELLE CARTAGE CO | | | SCAC3 |
| 94 | BCCO | BARRY CARTAGE CO | | | SCAC3 |
| 95 | BCCP | BRITISH COLUMBIA TIMBERFRAME COMPAN | | | SCAC4 |
| 96 | BCCQ | BC CARGO TRANSPORT | | | SCAC4 |
| 97 | BCCR | BRAAMS CUSTOM CABINETS | | | SCAC4 |
| 98 | BCCS | BEE COUNTY COOPERATIVE ASSOCIATION | | | SCAC4 |
| 99 | BCCT | BACARELLA TRANSPORTATION SERVICES I | | | SCAC3 |
| 100 | BCCT | BACARELLA TRUCKING SERVICES INC | | | SCAC4 |
