| 1 | BEC | State Air Company Berkut | Founded in 2000. | KZ | AVCODES |
| 2 | BEC | Beech Aircraft Corp. | Callsign: Beech Test, | USA | AVCODES |
| 3 | BEC | State Air Company Berkut | | | ICAO1 |
| 4 | BECA | BEAR CAT INC | | | SCAC3 |
| 5 | BECA | BEAR CAT INC | | | SCAC4 |
| 6 | BECB | BEALL INDUSTRIES INC | | | SCAC3 |
| 7 | BECB | BEGEES TRUCKING INC USA | | | SCAC4 |
| 8 | BECC | BECO INC | | | SCAC3 |
| 9 | BECC | BECO INC | | | SCAC4 |
| 10 | BECD | BEAR WITH US INC | | | SCAC4 |
| 11 | BECE | BREEDEN TRANSPORTATION INC | | | SCAC4 |
| 12 | BECF | BURGESS EXPRESS CARRIER | | | SCAC4 |
| 13 | BECH | BEACH PARK FREIGHT LINES INC | | | SCAC3 |
| 14 | BECI | BELDON BISON RANCH | | | SCAC4 |
| 15 | BECJ | BECKERS TRUCKING | | | SCAC3 |
| 16 | BECL | BECNEL, G A INC | | | SCAC4 |
| 17 | BECM | BELTRAN, CHARLES | | | SCAC3 |
| 18 | BECN | BEACON FAST FREIGHT CO INC | | | PWRC |
| 19 | BECO | BECKLEY TRUCKING INC | | | SCAC3 |
| 20 | BECP | BLUE EMERALD CHARTERING CORPORATION | | | SCAC4 |
| 21 | BECQ | BEC EXPRESS | | | SCAC3 |
| 22 | BECR | BEE CARRIERS INC | | | SCAC4 |
| 23 | BECS | BELGER CARTAGE SERVICE, INC | | | SCAC3 |
| 24 | BECT | BECKER TRUCKING CO | | | SCAC3 |
| 25 | BECT | BECKER TRUCKING CO | | | SCAC4 |
| 26 | BECU | CARGOTAINER GMBH | | | SCAC3 |
| 27 | BECU | EUROTAINER SA | | | SCAC4 |
| 28 | BECV | BORDER ENTERTAINMENT | | | SCAC4 |
| 29 | BECW | BERRY, CARLETON W MOVERS INC | | | SCAC3 |
| 30 | BECX | FMC Corp. | eliminated 7/1993; 1/1994 (not listed); eliminated 10/1997; 7/2000 (not listed); added 10/2000; 7/2005 | | NAKINA |
| 31 | BECX | FMC Corp., Inorganic Chemicals Division | 7/1965 | | NAKINA |
| 32 | BECX | FMC Corp. | 10/1966 | | NAKINA |
| 33 | BECX | FMC Corp., Inorganic Chemicals Division | 4/1970-1/1980 | | NAKINA |
| 34 | BECX | FMC Corp., Inorganic Chemicals Division | added 7/1962; eliminated 1/1964 | | NAKINA |
| 35 | BECX | FMC Corp. | added 1/1964 | | NAKINA |
| 36 | BECX | Becco Chemical Division, Food Machinery and Chemical Corp. | added 4/1955; 10/1957-4/1961; eliminated 10/1961 | | NAKINA |
| 37 | BECX | Becco Chemical Division, FMC Corp. | added 10/1961; eliminated 7/1962 | | NAKINA |
| 38 | BECX | Buffalo Electro-Chemical Co., Inc. | 7/1937-7/1954; eliminated 4/1955 | | NAKINA |
| 39 | BECX | Buffalo Electro-Chemical Co. | 4/38-1/52; eliminated 4/55 | | NRHS |
| 40 | BECX | Becco Chemical Division, Food Machinery and Chemical Corp. | added 4/55; 10/57-4/61 | | NRHS |
| 41 | BECX | FMC Corp., Inorganic Chemicals Division | Jul-65 | | NRHS |
| 42 | BECX | FMC Corp. | Oct-66 | | NRHS |
| 43 | BECX | FMC Corp., Inorganic Chemicals Division | 4/70-1/80 | | NRHS |
| 44 | BECX | FMC Corp. | eliminated 7/93; 1/94; eliminated 10/97; 7/2000; added 10/2000 | | NRHS |
| 45 | BECX | *BEAUFORD EAST COAST RAILROAD | | | PWRC |
| 46 | BECX | +FMC CORP., INORGANIC CHEMICALS DIV. {BUFFALO ELECTRO-CHEMICAL CO. INC.; BECCO CHEMICAL DIV, FOOD MACHINERY & CHEMICAL CORP.] | | | PWRC |
| 47 | BECX | Beauford East Coast Railroad (FMC Corporation) | | | RSRV |
| 48 | BECX | FMC CORPORATION | | | SCAC4 |
| 49 | BECY | BEACH OIL COMPANY INC | | | SCAC4 |
