All ships bearing the name of ENTERPRISE.  
    NCC-1701                                                                                                  NCC-1701 Refit
Constitution Class                                                                                                                    Constitution Class   NCC-1701A Constitution Class
                                                NCC-1701B
                                      Excelsior Class
,
NCC-1701C                                                                                            NCC-1701D
Ambasador Class                                                                                   Galaxy Class NCC-1701D Refit Dreadnaught Galaxy Class NCC-1701E Nova Class