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Leader: Mae Yukiyama
Founded: March 1960

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Ideology:
Progressivism
Social democracy
Left-wing populism
Left-libertarianism
Pacifism
Political Position:
centre-left to left-wing

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National Council Seats: 61/117

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Leader: Geoffrey Newport
Founded: September 1937

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Ideology:
Conservative liberalism
Fiscal conservatism
Rhine capitalism
Constitutionalism
Political Position:
Big-tent

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National Council Seats: 34/117

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Leader: Henry Cooper
Founded: October 2011

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Ideology:
Economic liberalism
Classical liberalism
Radical centrism
Dōshūsei
Regionalism
Political Position:
centre to centre-right

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National Council Seats: 13/117

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Leader: Jason Fox
Founded: July 2006

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Ideology:
Liberalism
Social liberalism
Reformism
Centrism
Political Position:
centre to centre-left

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National Council Seats: 9/117