| Carrier Code | Carrier Name |
| SEFF | SEA FREIGHT FORWARDERS |
| SEFH | SEAFREIGHT INC |
| SEFS | SEA-CAL FREIGHT SERVICE |
| SEGI | SEA GUAM INC |
| SEGO | SEG INTERNATIONAL MARINE INC |
| SEGU | SCIENTIFIC ECOLOGY GROUP INC, THE |
| SEHO | SEAHORSE MARINE S A |
| SEHT | SEATTLE HARBOR TOURS |
| SEIU | STRATEGIC EQUIPMENT SYSTEM INC |
| SEJU | SCANDINAVIAN CARGO SEA INC |
| SELM | SEALIGHT MARINE LTD |
| SEMU | SEMAT |
| SEOU | SEORGI STATE ESTABLISHMENT OF OIL REFINING & GAS INDUSTRY |
| SEPH | SEASPOT SHIPPING LIMITED |
| SEQS | SEANAME SHIPPING LIMITED |
