| Carrier Code | Carrier Name |
| CLYR | COLLEY MOTORSHIPS LTD |
| CMAR | COASTAL MARINE TOWING INC |
| CMAU | CARGO MARINE CONTAINERS LTD |
| CMBI | COLOMBIA EXPRESS L L C |
| CMBQ | COLUMBIA MARITIME CORP |
| CMBR | COMBO MARITIME INC |
| CMBU | C M B TRANSPORT N V |
| CMCG | COMPLETE CARGO SERVICES INC |
| CMCL | COMMODORE CRUISE LINE |
| CMCU | CROWLEY MARITIME CORPORATION |
| CMCW | COMPASS MARINE CORP |
| CMDU | CMA-CGM S.A |
| CMEU | CENAM |
| CMFU | CMF |
| CMGU | CARBUROS MESSER GRIESHEIM |
