| 1 | CSA | Czech Airlines A.S. , CSA | IATA: OK, Callsign: CSA-Lines, IATA Prefix: 064, | CZ | AVCODES |
| 2 | CSA | Ceskoslovenske Aerolinie (CSA) | IATA: OK, Callsign: CSA-Lines, IATA Prefix: 064, | CS | AVCODES |
| 3 | CSA | Czech Airlines | IATA: OK | | ICAO1 |
| 4 | CSA | Ceskoslovenske Aerolinie | | CS | TRAFFIC |
| 5 | CSAB | CASTANARES, ALBERTO G | | | SCAC3 |
| 6 | CSAB | CUSTOM ASSEMBLY INCORPORATED | | | SCAC4 |
| 7 | CSAC | CENTRAL STATES TRUCKING CO | | | SCAC3 |
| 8 | CSAC | CENTRAL STATES TRUCKING CO | | | SCAC4 |
| 9 | CSAD | CASCADE TRANSPORT INC | | | SCAC3 |
| 10 | CSAD | CASCADE TRANSPORT INC | | | SCAC4 |
| 11 | CSAD | | | CS | TRAFFIC |
| 12 | CSAE | C & S CARTAGE INC | | | SCAC3 |
| 13 | CSAG | CONECUH SAUSAGE COMPANY INC | | | SCAC4 |
| 14 | CSAH | COSTA TRUCK LINES | | | SCAC3 |
| 15 | CSAH | CARUSO TRUCKING LLC | | | SCAC4 |
| 16 | CSAI | C S A TRANSPORT INC | | | SCAC3 |
| 17 | CSAJ | C S & J TRUCKING INC | | | SCAC3 |
| 18 | CSAK | COSTA, TIM TRUCKING | | | SCAC3 |
| 19 | CSAL | CUSTOM ALUMINUM INC | | | SCAC4 |
| 20 | CSAN | CASTAN TRUCKING INC | | | SCAC3 |
| 21 | CSAN | CASTAN INC | | | SCAC4 |
| 22 | CSAO | CONRAIL SHARED ASSETS OPERATIONS | | | PWRC |
| 23 | CSAO | CROSSBORDER EXPRESS | | | SCAC4 |
| 24 | CSAP | CONTINENTAL SYSTEMS & CONCEPTS INC | | | SCAC3 |
| 25 | CSAP | CONTINENTAL SYSTEMS & CONCEPTS INC | | | SCAC4 |
| 26 | CSAQ | COLD STORAGE TRUCKING | | | SCAC3 |
| 27 | CSAQ | COSTA TRANSPORT LLC | | | SCAC4 |
| 28 | CSAR | COASTAL ARMORED CAR SERVICE INC | | | SCAC3 |
| 29 | CSAR | CAVAZOS ALANIS, EDGAR | | | SCAC4 |
| 30 | CSARM | Czechoslovak Army | 1918 - 1954 | CS | TRAFFIC |
| 31 | CSAT | CENTRAL STORAGE & TRANSFER CO | | | SCAC3 |
| 32 | CSAT | CENTRAL STORAGE & TRANSFER CO | | | SCAC4 |
| 33 | CSAU | CORPORATIVO DE SERVICIOS AMBIENTALES S.A DE C.V | | MEX | BIC |
| 34 | CSAU | COSTA LINE | | | PWRC |
| 35 | CSAU | Costa Line | | | RSRV |
| 36 | CSAU | CONTAINER SERVICE 'AMSTERDAM' | | | SCAC3 |
| 37 | CSAU | CORSA | | | SCAC4 |
| 38 | CSAV | SUDAMERICANA DE VAPORES | | | SCAC1 |
| 39 | CSAV | COASTAL AVIATION | | | SCAC4 |
| 40 | CSAX | Crucible Steel Co. of America | 7/1923; 1/1943-7/1954; eliminated 7/1956 | | NAKINA |
| 41 | CSAX | Crucible Steel Co. of America | 1/52; eliminated 7/56 | | NRHS |
| 42 | CSAX | CRUCIBLE sTEEL CO,. OF AMERICA | | | PWRC |
| 43 | CSAY | CASSIDY, ALLEN TRUCKING | | | SCAC3 |
| 44 | CSAY | CASSIDY, ALLEN TRUCKING | | | SCAC4 |