-
People Democratic Party of Afghanistan
Albania
-
Albanian Labour Party
Bahrain, Kingdom of
-
A people’s organization from Bahrain
Bangladesh
-
Socialist Party of Bangladesh
-
Communist Party of Bangladesh (ML) - Bangladesher Samyabadi Dal (Marxist-Leninist)
Belgium
-
Workers' Party of Belgium
Benin
-
Parti communiste marxiste-léniniste du Bénin
Bulgaria
-
Communist Party of Bulgaria
Canada
-
Communist Party of Canada (Marxist-Leninist)
Congo, Democratic Republic of
- A people's organization
Cuba
- Partido Comunista de Cuba
Czech Republic
- Communist Party of Bohemia and Moravia (KSCM)
Denmark
- Communist Party of Denmark (DKP)
- Communist Party of Denmark Marxist-Leninist (DKP-ML)
Ecuador
- Partido Comunista Marxista-Leninista del Ecuador (PCMLE)
France
- PRFC - Pôle de Renaissance Communiste en France (FNARC)
- URFC - Union des révolutionnaires-communistes de France
Germany
- Communist Party of Germany (KPD)
India
- Communist Party of India (Marxist-Leninist) - Janashakti
- Communist Party of India (Marxist-Leninist) - Liberation
- Communist Party of India (Marxist-Leninist) - Red Flag
Indonesia
- A people’s organization from Indonesia
Iran
- Tudeh Party of Iran
Italy
- Rete dei Comunisti
Korea, Democratic People's Republic of
- Workers' Party of Korea
Laos
- Lao People's Revolutionary Party
Latvia
- Socialist Party of Latvia
Lebanon
- Communist Party of Lebanon
Moldova, Republic of
- Party of Communists of the Republic of Moldova
Nepal
- Anti-Imperialist Revolutionary Forum (AIRF)
- Nepal Communist Party (United)
- Nepal Communist Party (Unity Center-Mashal)
Netherlands,The
- Nieuwe Communistische Partij Nederland (NCPN)
Niger
- Mouvement Patriotique pour la Solidarité et le Progrès (MPSP-Haske)
Norway
- Workers' Communist Party (AKP)
Palestine
- Democratic Front for the Liberation of Palestine (DFLP)
- A people's organization from Palestine
Peru
- Partido Proletario del Perú
Philippines
- A people's organization from the Philippines
Russia
- Communist Party of the Soviet Union (CPSU)
Slovakia
- Communist Party of Slovakia
Sweden
- Communist Party of Sweden Marxist-Leninists (revolutionaries) (KPML(r))
Syria
- Syrian Communist Party
Turkey
- Communist Party of Turkey (TKP)
- Turkish Communist Party / Marxist-Leninist
- Revolutionary People's Liberation Front (DHKC)
United Kingdom
- Revolutionary Communist Party of Britain (Marxist-Leninist)
USA
- Freedom Road Socialist Organization
- Workers' World Party
Venezuela
- Partido Comunista de Venezuela
Yugoslavia
- Workers' Party of Yugoslavia
Registered as observer:
Brazil
- Centro Brasileiro por la Solidariedade aos Povos (CEBRASPO)
Colombia
- A people’s organization from Colombia
Germany
- Bolshevik Initiative
Hungary
- Hungarian Karl Marx Society
Mexico
- Partido Obrero Rojo
Philippines
- National Democratic Front of the Philippines
Spain
- Juventud Comunista de Asturia
United Kingdom
- Lalkar Magazine
Venezuela
- Federacion de Centros Universitaros de la Universidad Simón Rodiguez