| Carrier Code | Carrier Name |
| ITMR | INTERMARINE INC |
| ITNK | ISLAND TANKER NO 3 SHIPPING INC |
| ITNU | ITOFCA NAVIGATION INC |
| ITOG | INTEROCEANICA AGENCY INC |
| ITRU | I T R NV |
| ITSU | INTERNATIONAL TRANSPORTATION SERVICES INC |
| ITTU | INTERTRANSPORTS CENTRE S R L |
| ITZF | ISLAND TANKER NO 4 SHIPPING INC |
| ITZU | INTERMODAL SYSTEMS INC |
| IVAU | IVARAN LINES |
| IVAW | IVERS, A WILLARD INC |
| IVLU | IVARANS REDERI A/S |
| IVRY | IVORY STAR SHIPPING COMPANY LIMITED OF LIMASSOL |
| IXWU | INTEROX CHEMICALS LTD |
| JAAS | JAR ASSETS INC |
