UK Unionist Party ended in 2008.
UK Unionist Party was created in 1995.
Liberal Unionist Party ended in 1912.
Protestant Unionist Party ended in 1971.
United Ulster Unionist Party ended in 1984.
Ulster Popular Unionist Party ended in 1995.
Unionist Party of Northern Ireland ended in 1981.
Labour Party Conservative Party Liberal Democrats Democratic Unionist Party Respect Coalition UK Independence Party British National Party Independent Kidderminster Hospital and Health Concern Progressive Unionist Party
Progressive Unionist Party was created in 1979.
Liberal Unionist Party was created in 1886.
Protestant Unionist Party was created in 1966.
United Ulster Unionist Party was created in 1975.
Democratic Unionist Party was created on 1971-09-30.