| 1 | CSY | Shuangyang General Aviation Co. | Callsign: Shuangyany, | PRC | AVCODES |
| 2 | CSY | Shuangyang General Aviation | | | ICAO1 |
| 3 | CSYB | COLTRANS SYSTEMS INC | | | SCAC3 |
| 4 | CSYC | CONTINENTAL SYSTEMS CONCEPTS OF NOR | | | SCAC3 |
| 5 | CSYD | CARGO SYSTEMS INC | | | SCAC4 |
| 6 | CSYE | COURTESY EXPRESS | | | SCAC3 |
| 7 | CSYF | COURTESY TRANSFER & STORAGE | | | SCAC3 |
| 8 | CSYG | CREASY TRANSPORT | | | SCAC3 |
| 9 | CSYI | COURIER SYSTEMS INC | | | SCAC3 |
| 10 | CSYM | CARRIER SYSTEMS INC | | | SCAC3 |
| 11 | CSYN | COAST TRANSPORTATION SYSTEMS, INC | | | SCAC3 |
| 12 | CSYN | CASEYS SERVICES COMPANY | | | SCAC4 |
| 13 | CSYO | CASEYS OFFICE MOVING SERVICES INC | | | SCAC3 |
| 14 | CSYP | CONTROL TRANSPORT SYSTEM INC | | | SCAC3 |
| 15 | CSYP | CES EXPRESS | | | SCAC4 |
| 16 | CSYR | CASEY RESOURCES | | | SCAC3 |
| 17 | CSYT | CHRYSLER TRANSPORT INC | | | SCAC3 |
| 18 | CSYT | CHRYSLER GROUP TRANSPORT LLC | | | SCAC4 |
| 19 | CSYU | CORDELIA CONTAINER SHIPPING LINE LIMITED | | CY | BIC |
| 20 | CSYU | TEXTAINER SERVICES LTD. | | | SCAC3 |
| 21 | CSYW | CASSIDY, P | | | SCAC3 |
| 22 | CSYX | Bunge North America | added 7/2004; 7/2005 | | NAKINA |
| 23 | CSYX | Central Soya Co., Inc. | added 4/1997; 7/2000; eliminated 7/2004 | | NAKINA |
| 24 | CSYX | Creosote Supply Co., Ltd. | 8/1920-7/1923 | | NAKINA |
| 25 | CSYX | Central Soya Co., Inc. | added 4/97; 7/2000 | | NRHS |
| 26 | CSYX | *CREOSOTE SUPPLY CO., LTD. | | | PWRC |
| 27 | CSYX | +BUNGE NORTH AMERICA [CENTRAL SOYA COMPANY INC] | | | PWRC |
| 28 | CSYX | Central Soya | | | RSRV |
| 29 | CSYX | BUNGE NORTH AMERICA INC | | | SCAC4 |
| 30 | CSYX | Central Soya Co., Inc. | | USA | TRAFFIC |
| 31 | CSYZ | CSX CORPORATION | | | PWRC |
