| A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
| From IA to IZ |
| IASON TOURS |
| IDEAL HOLIDAYS |
| ILIAS TOURS |
| ILLUSION HOLIDAYS LTD |
| IMAGINATION TRAVEL |
| INCOMING HELLAS |
| INFOTRAVEL Ltd see WORLDWIDE INFOTRAVEL Ltd |
| INIOHOS INTERNATIONAL TRAVEL SYSTEM |
| INNOVATION TOURS |
| INTERAVIATION Ltd |
| INTERCONTACT Ltd – TOURISM TRAVEL |
| INTERITALIA TOURS |
| INTERMAR CRUISES & TRAVEL |
| INTERMED TRAVEL CONSULTANTS |
| INTERNATIONAL MARITIME AGENCY |
| INTERTRANSFER |
| INTRACO TRAVEL S.A. TRAVEL & TOUR OPERATORS |
| INVITA DIRECT |
| IONIAN TRAVEL S.A. |
| IONION TRAVEL OFFICE |
| ION TOURS |
| IOS TRAVEL |
| IPPOCAMPOS TRAVEL Ltd |
| I.Q. HOLIDAYS LTD |
| IRINA G. TOURS |
| IVIS TRAVEL |