| 1 | MBC | Airjet Exploracao Aerea de Carga, Passageiros e Correios, Lda | Callsign: Mabeco, | ANG | AVCODES |
| 2 | MBC | Airjet Exploracao Aerea De Carga | | | ICAO1 |
| 3 | MBC | Transports de la région Morges–Biere–Cossonay | | CH | TRAFFIC |
| 4 | MBC | Transports de la région Morges-Bière-Cossonay | | CH | VKM |
| 5 | MBCB | MTI BUS COMPANY | | | SCAC4 |
| 6 | MBCC | MARBLE CLIFF OIL CO | | | SCAC4 |
| 7 | MBCE | MALLETTE BROTHERS CONSTRUCTION COMP | | | SCAC4 |
| 8 | MBCH | MAIBACH TRACTOR LLC | | | SCAC4 |
| 9 | MBCI | MISSOULA BOTTLING COMPANY INC | | | SCAC4 |
| 10 | MBCJ | MARTINEZ BRIONES, CLAUDIA JULIANA | | | SCAC4 |
| 11 | MBCK | M B TRUCKING INC | | | SCAC4 |
| 12 | MBCL | MAILBOAT COMPANY LTD, THE | | | SCAC4 |
| 13 | MBCO | MABCO TRANSIT INC | | | SCAC4 |
| 14 | MBCQ | M & B CARRIERS INC | | | SCAC4 |
| 15 | MBCR | MANBECK, LARRY W | | | SCAC4 |
| 16 | MBCS | MONTREAL BEST CARRIER INC | | | SCAC4 |
| 17 | MBCV | MOORE, BENJAMIN & CO | | | SCAC4 |
| 18 | MBCW | MATHEWS BROTHERS COMPANY | | | SCAC4 |
| 19 | MBCX | Chicago Freight Car Leasing Co. | added 4/2007 | | NAKINA |
| 20 | MBCX | M.B.C.X. Leasing, LLC | added 7/1998; 7/2000; eliminated 4/2003; 7/2005 (not listed) | | NAKINA |
| 21 | MBCX | Material Brokerage Co. | added 10/1996; eliminated 7/1998 | | NAKINA |
| 22 | MBCX | The Mann Bros. Co. | 8/1920-7/1935 | | NAKINA |
| 23 | MBCX | Material Brokerage Co. | added 10/96; eliminated 7/98 | | NRHS |
| 24 | MBCX | M.B.C.X. Leasing, L.L.C. | added 7/98; 7/2000 | | NRHS |
| 25 | MBCX | *MANN BROS. CO. | | | PWRC |
| 26 | MBCX | +CHICAGO FREIGHT CAR LEASING CO. [M.B.C.X. LEASING, LLC; MATERIAL BROKERAGE COMPANY] | | | PWRC |
| 27 | MBCX | M.B.C.X. Leasing (Chicago Freight Car Leasing) | | | RSRV |
| 28 | MBCX | CHICAGO FREIGHT CAR LEASING CO | | | SCAC4 |
| 29 | MBCY | MOBSTER COMPANY LLC | | | SCAC4 |
