. Европейска народна партия (група в ЕП) (219) . Прогресивен алианс на социалистите и демократите (189) . Европейски консерватори и реформисти (71) . Алианс на либералите и демократите за Европа (68) . Европейска обединена левица - Северна зелена левица (52) . Зелените – Европейски свободен алианс (51) . Европа на свободата и пряката демокрация (44) . Европа на нациите и свободата (37)
. Европейски десни (1984–89) . Европейски десни (1989–94)
. European Democratic Union (1965–1973) . European Progressive Democrats (1973–1984) . European Democratic Alliance (1984–1995) . Union for Europe (1995–1999)
. Christian Democrats (1953–1979) . European People's Party (1979–1999) . European Conservatives (1973–1979) . European Democrats (1979–1992) . Forza Europa (1994–1995)
. Liberals and Allies (1953–1976) . Liberals and Democrats (1976–1985) . Liberal and Democratic Reformist Group (1985–1994) . European Radical Alliance (1994–1999)
. Socialists (1953–1993)
. Communists and Allies (1973–1989) . European United Left (1989–93) . Left Unity (1989–1994)
. Rainbow Group (1984–89) . Rainbow Group (1989–94)
. Europe of Nations (1994–1996) . Independents for a Europe of Nations (1996–1999) . Europe of Democracies and Diversities (1999–2004) . Independence/Democracy (2004–2009)
. Technical Group of Independents (1979–84)
