| Abbreviation | Definition |
|---|---|
| CAGX | MHC (ConAgra) |
| CAGX | MHC Incorporated - Subsidiary of Conagra Incorporated |
| CAGY | Columbus and Greenville Railway |
| CAGY | Columbus and Greenville Railway Company |
| CAGZ | Columbus and Greenville Railway |
| CAIU | Cai International |
| CALA | Carolina Southern Railroad |
| CALA | Carolina Southern Railroad Company |
| CALX | California Railcar Corporation |
| CAMU | MGC Pure Chemicals America |
| CAMX | Canamax Commodity Corporation |
| CANU | Modcan Solutions |
| CANX | CANAC International |
| CANX | CANAC International Incorporated |
| CAOX | Goodrich Company - Chemical Group |
| CAOX | Westlake CA and O |
| CAPX | Capital City Products (TransAlta Utilities) |
| CAPX | TransAlta Utilities Corporation |
| CARE | Citizens Against Rail Expansion |
| CARM | Computer Assisted Radio Monitoring |