House of Commons (Westminster)
Alba Party | Alliance | Conservatives | Democratic Unionist Party | Greens (E&W) | Labour | Liberal Democrats | Plaid Cymru | Scottish National Party | Sinn Féin
Scottish Parliament (Holyrood)
Scottish Conservatives | Scottish Greens | Scottish Labour | Scottish Liberal Democrats | Scottish National Party
Senedd
Welsh Conservatives | Welsh Labour | Welsh Liberal Democrats | Plaid Cymru | United Kingdom Independence Party
Northern Ireland Assembly
Alliance | Democratic Unionist Party | Greens (NI) | Independent Unionists | People Before Profit | Sinn Féin | Social Democratic and Labour Party | Traditional Unionist Voice | Ulster Unionist Party
Other national and regional parties
Christian Peoples Alliance • Change UK – The Independent Group • Christian • Communist • Éirígí • English Democrats • IKHH • IWCA • Liberal • Mebyon Kernow • National Front • Official Monster Raving Loony • Progressive Unionist • Reform UK • Republican Sinn Féin • Scottish Socialist • Social Democratic • Socialist Labour • Socialist • Socialist Workers • Solidarity • Workers (Ireland)
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