Decisions on membership taken during the inter-congress period ratified by the XXV Congress

Full membership

Bolivia: National Unity, UN

Burkina Faso: People's Movement for Progress, MPP

India: Indian National Congress, INC

Iran: Kurdistan Democratic Party, KDP

Venezuela: Voluntad Popular, VP

Change of status to full membership 

Azerbaijan: Social Democratic Party of Azerbaijan, SDPA

Belarus: Belarusian Social Democratic Party, BSDP

Chad: National Union for Development and Renewal, UNDR

Cyprus: Republican Turkish Party, CTP

Cyprus: Social Democratic Party, TDP

Egypt: Egyptian Social Democratic Party, ESDP

Kazakhstan: Nationwide Social Democratic Party, OSDP

Paraguay: Progressive Democratic Party, PDP

Venezuela: A New Era, UNT

Consultative status

Botswana: Botswana Democratic Party, BDP

Belize: People's United Party, PUP

Latvia: People's Harmony Party of Latvia

Nigeria: All Progressives Congress, APC

Syria: Democratic Union Party, PYD

Change of status to consultative membership

Western Sahara: Polisario

Observer status

DR Congo: Unified Lumumbist Party, PALU

Iran: Komala Party of Iranian Kurdistan, KPIK

Iran: Komala Party of Kurdistan, KPK

Lesotho: Lesotho Congress for Democracy, LCD

Somaliland: Justice and Welfare Party, JWP

Swaziland: Swazi Democratic Party, SWADEPA

Associated Organisation status

Arab Social Democratic Forum, ASDF

Euro-Latin American Forum of Progressive and Socialist Parliamentarians