HMS Westminster is proud to be affiliated with the following:

Lady Sally Livesay
Lord Mayor of Westminster
Household Cavalry
London URNU
Queen's Own Yeomanry
Worshipful Company of Fan Makers
London Underground
City of London School CCF
Churcher's College CCF
Enfield SCC
Westminster Abbey Choir School
291 Sqn ATC
St Andrew's Youth  Club

Hon Cdr Alderman The Rt Hon Lord Mountevans RNR – honorary Officer