| class="odd" | ''Ptolemy-class''| class="even" | [[TugRhode Island Class Survey Vessel|Rhode Island Class]]/[[Transport]]'' || class="odd" Survey Vessel | 2285|Limited Service
| class="odd" | ''Renaissance[https://memory-class''| class="even" alpha.fandom.com/wiki/Sovereign_class Sovereign Class] | ''unknown''| class="odd" Explorer | 2365|Limited Service