| Compagnia di traghetti |
Logo & collegamento |
Icard Maritime  |
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Ichnusa Lines  |
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Inishbofin Island Discovery  |
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| Inter Iles |
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Inter-Island Ferry Authority  |
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Inter Shipping  |
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Interislander  |
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Intershipping (fine delle attività 2011)  |
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Ionian Cruises  |
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| Ionian Ferries |
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| Ionion Lines Maritime |
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| Ionion Pelagos |
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| Ippocampo |
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| Irish Ferries |
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Iscomar Ferries  |
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Ishigaki Dream Tours  |
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| Island Packers |
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| Island Queen |
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Island Speed Ferry  |
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Isle of Man Steam Packet Company  |
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Isle of Sark Shipping |
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| Isle of Skye Ferry |
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| Isles of Scilly Steamship Company |
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| Isle of Wight - Cowes floating bridge |
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Istanbul Fast Ferries (IDO)  |
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| Istanbul Sehir Hatlari |
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