| Carrier Code | Carrier Name |
| MSRV | MISSISSIPPI RIVER CHARTER SERVICE INC |
| MSSO | MASSOCEAN S A |
| MSSP | M & S SHIPPING LIMITED |
| MSTU | METANOLSKO SIRCETNI KOMPLEKS KIKINDA |
| MSUU | MUNICIPAL SERVICES CORPORATION |
| MSVL | MOSVOLD SHIPPING AS |
| MSVS | MERRITT SHIP AGENCIES & BROKERAGE INC |
| MSXU | MARINE SPILL RESPONSE CORPORATION, THE |
| MTBG | MARIN TUG & BARGE INC |
| MTBL | MAT TRANSPORT AG |
| MTCS | MERCE TRANSPORTATION COMPANY |
| MTDL | MARINE TRADING LIMITED |
| MTEH | MONTANA MARINE HOLDINGS INC |
| MTEU | MONSANTO EUROPE SA |
| MTGN | MONTGOMERY NAVIGATION INC LIBERIA |
