| 1 | CSG | Aero Costa Sol, S.A. | Callsign: Costa Sol, | CR | AVCODES |
| 2 | CSG | Czech Government Flying Service | | CS | AVCODES |
| 3 | CSG | Air Caucasus | IATA: UY, IATA Prefix: 049, Commenced operations in August 2013. Ceased operations during 2014. | GE | AVCODES |
| 4 | CSG | China Southern Airlines Cargo | Callsign: Southern Cargo, | PRC | AVCODES |
| 5 | CSG | Club del San Gottardo | | CH | VKM |
| 6 | CSGA | CHEAHA STAGE LINES | | | SCAC3 |
| 7 | CSGB | CARDENAS, S G BROKERAGE | | | SCAC3 |
| 8 | CSGB | CONDOR SIGNAL & COMMUNICATIONS INC | | | SCAC4 |
| 9 | CSGC | COASTAL STATES CRUDE GATHERING CO | | | SCAC3 |
| 10 | CSGC | COLD SPRING GRANITE COMPANY | | | SCAC4 |
| 11 | CSGD | CASTILLO GARCIA, ROSENDO | | | SCAC4 |
| 12 | CSGF | CONTSHIP GULF LINE | | | SCAC3 |
| 13 | CSGF | CASTRO GUIZAR, FORTUNATO | | | SCAC4 |
| 14 | CSGG | CAPES SHIPPING AGENCIES INC | | | SCAC3 |
| 15 | CSGG | CAPES SHIPPING AGENCIES INC | | | SCAC4 |
| 16 | CSGH | CURTIS, GLENN H | | | SCAC3 |
| 17 | CSGI | CHANDLERS SAND & GRAVEL | | | SCAC3 |
| 18 | CSGJ | COSGROVE, J P TRUCKING | | | SCAC3 |
| 19 | CSGK | CARRERA SHIPPING COMPANY LIMITED | | | SCAC3 |
| 20 | CSGK | CENTRAL MULTI STOP INC | | | SCAC4 |
| 21 | CSGL | CONTSHIP GULF LINE | | | SCAC3 |
| 22 | CSGM | CAST CARTAGE | | | SCAC3 |
| 23 | CSGN | CORAL SPRINGS MOVING & STORAGE | | | SCAC4 |
| 24 | CSGP | CARRIER SALES GROUP | | | SCAC4 |
| 25 | CSGPL | CARMENSIMI GRUP SRL | | RO | VKM |
| 26 | CSGQ | CAROLINA STORAGE & TRANSFER CO | | | SCAC3 |
| 27 | CSGQ | COMMERCIAL DELIVERY SYSTEMS LLC | | | SCAC4 |
| 28 | CSGR | CASSETTE, GERALD TRUCKING | | | SCAC3 |
| 29 | CSGS | CONTRACTORS SAND AND GRAVEL SUPPLY | | | SCAC3 |
| 30 | CSGT | CSG TRUCKING | | | SCAC3 |
| 31 | CSGT | COOL SPRINGS TRUCKING | | | SCAC4 |
| 32 | CSGU | VOS TANK LOGISTICS BORN B V | | | SCAC4 |
| 33 | CSGV | CORNELL SHIPPING INC | | | SCAC3 |
| 34 | CSGW | CASTAG/CO | | | SCAC3 |
| 35 | CSGX | Central Sand and Gravel Co. | added 7/1973; 1/1975-1/1980; eliminated 1/1984 | | NAKINA |
| 36 | CSGX | Union Tank Car Co. | added 10/1953; 7/1954-10/1957; eliminated 1/1958 | | NAKINA |
| 37 | CSGX | Transit Co., Ltd. | 7/1930-1/1952; eliminated 10/1953 | | NAKINA |
| 38 | CSGX | Transit Co., Ltd. | 4/38-1/52; eliminated 10/53 | | NRHS |
| 39 | CSGX | Union Tank Car Co. | added 10/53; 10/57; eliminated 1/58 | | NRHS |
| 40 | CSGX | Central Sand and Gravel Co. | added 7/73; 1/75-1/80 | | NRHS |
| 41 | CSGX | *UNION TANK CAR CO. [TRANSIT CO., LTD.} | | | PWRC |
| 42 | CSGX | *CENTRAL SAND & GRAVEL CO. | | | PWRC |
| 43 | CSGX | Central Sand and Gravel | | | RSRV |
| 44 | CSGY | COASTAL STEVEDORING COMPANY | | | SCAC3 |
| 45 | CSGY | COASTAL STEVEDORING COMPANY | | | SCAC4 |
