| 1 | 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 |
| 2 | BCA | Bulgarian Air Cargo | Callsign: Bul Air Cargo, | BG | AVCODES |
| 3 | BCA | Baltimore, Chesapeake & Atlantic Ry. Co. | 7/1923 | | NAKINA |
| 4 | BCA | Baltimore, Chesapeake & Atlantic Ry. Co. (Pennsylvania R.R.) | 7/1930 | | NAKINA |
| 5 | BCA | Baltimore, Chesapeake & Atlantic Ry. Co. | 23-Jul | | NRHS |
| 6 | BCA | PENNSYLVANIA RAILROAD [BALTIMORE CHESAPEAKE & ATLANTIC RWY.] | | | PWRC |
| 7 | BCAB | BEST CAB COMPANY | | | SCAC3 |
| 8 | BCAB | BULKLEY TRUCKING | | | SCAC4 |
| 9 | BCAB | Transportes de Baja California Azul y Blanco | | MEX | TRAFFIC |
| 10 | BCAC | BULLDOG CAB CO | | | SCAC3 |
| 11 | BCAD | BEST COURIER&DELIVERY SERVICE, | | | SCAC3 |
| 12 | BCAD | BEST COURIER AND DELIVERY SERVICE | | | SCAC4 |
| 13 | BCAF | BUICK CITY AIRFREIGHT | | | SCAC3 |
| 14 | BCAI | BCA INC | | | SCAC3 |
| 15 | BCAI | BLUE CIRCLE AUDIO INC | | | SCAC4 |
| 16 | BCAJ | BRACAMONTES, JOEL | | | SCAC3 |
| 17 | BCAL | BEARCAT LOGISTICS INC | | | SCAC4 |
| 18 | BCAO | BRUCE AUTO INC | | | SCAC3 |
| 19 | BCAO | B-CAL TRANSPORT | | | SCAC4 |
| 20 | BCAQ | B C MATERIALS AND EQUIPMENT CO INC | | | SCAC3 |
| 21 | BCAR | BUNDRANT CAR CARE INC | | | SCAC4 |
| 22 | BCAR | B Cargo | | B | TRAFFIC |
| 23 | BCAS | BOCAS DEL TORO COMPANIA ARMADORA S | | | SCAC3 |
| 24 | BCAT | BAGCRAFT CORPORATION OF AMERICA | | | SCAC4 |
| 25 | BCAV | BOBCAT SERVICES INC | | | SCAC3 |
| 26 | BCAX | Blue Circle Inc. | added 10/1990; 1/1994-7/2005 | | NAKINA |
| 27 | BCAX | Blue Circle Atlantic, Inc. | added 4/1987; eliminated 7/1988 | | NAKINA |
| 28 | BCAX | Blue Circle Atlantic, Inc., d/b/a Blue Cirle West | added 7/1988; eliminated 4/1989 | | NAKINA |
| 29 | BCAX | Blue Circle Atlantic, Inc. | added 4/1989; eliminated 10/1990 | | NAKINA |
| 30 | BCAX | Blue Circle Atlantic, Inc. | added 4/87; eliminated 7/88 | | NRHS |
| 31 | BCAX | Blue Circle Atlantic, Inc., d/b/a Blue Cirle West | added 7/88; eliminated 4/89 | | NRHS |
| 32 | BCAX | Blue Circle Atlantic, Inc. | added 4/89; eliminated 10/90 | | NRHS |
| 33 | BCAX | Blue Circle Inc. | added 10/90; 1/94-7/2000 | | NRHS |
| 34 | BCAX | BLUE CIRCLE, INC. [BLUE CIRCLE ATLANTIC, INC.] | | | PWRC |
| 35 | BCAX | Blue Circle | | | RSRV |
| 36 | BCAX | BLUE CIRCLE INC | | | SCAC4 |
| 37 | BCAX | Blue Circle Atlantic, Inc. | | USA | TRAFFIC |
| 38 | BCAY | BARCLAY TRUCKING CO | | | SCAC3 |