| Ship Name | Hull No. | IMO No. | ENI No. | Year Built | Date Taken | Location |
|---|---|---|---|---|---|---|
| Constellation | 9192399 | 2002 | 2002-06-22 | Dover | ||
| pv X-Pilot | 1967 | 2010-05-22 | River Medway | |||
| pv X-Pilot | 1967 | 2025-07-19 | River Thames | |||
| X-Press Monte Rosa | 9312200 | 2005 | 2010-06-20 | Rotterdam | ||
| X-Press Shannon | 9315032 | 2004 | 2016-10-10 | Firth of Clyde | ||
| Xandrina | 8509002 | 1986 | 2003-05-12 | Leith | ||
| Xlendi | 5147346 | 1955 | 1999-07-05 | Valletta | ||
| XT Peace | 9980265 | 2023 | 2024-07-15 | Solent | ||
| sb Xylonite | 1926 | 1989-06-17 | River Thames |