| Carrier Code | Carrier Name |
| IJSU | IJSFABRIEK STROMBEEK N V |
| IKKQ | INNOKENTIY KOCHNEV SHIPPING CO LTD, THE |
| ILDU | INAGUA LINES DE VENEZUELA CA |
| ILEU | ISLAND EXPRESS |
| ILGU | INTERLEASE SRL |
| ILTU | INTERNATIONAL LIQUID TRANSPORT COMPANY B V |
| IMCC | IRELAND MARINE CORPORATION |
| IMLQ | IRISIA MARINE LIMITED OF NICOSIA CYPRUS |
| IMPU | IMPERIAL INTERNATIONAL SHIPPING |
| IMQC | IMPERIAL TANKERS CORPORATION |
| IMTB | INDUSTRIAL MARITIME CARRIERS (BAHAMAS) INC |
| INCU | INCOTRANS BV |
| INGM | INGRAM INDUSTRIES INC |
| INGY | INTERNATIONAL SHIPPING COMPANY INC |
| INLN | INLAND OIL AND TRANSPORT CO |
