Albania

• Labour Party of Albania / Partia e Punës e Shqipërisë (PPSH)

Bulgaria

• Bulgarian Workers Party – Communists / Bulgarska Rabotnicheska Partiya (Komunisti)
• Resistance Movement “23 September”

Greece

• Communist Organization of Greece / Κομμουνιστική Οργάνωση Ελλάδας (ΚΟΕ)

Macedonia

• Reformed Communist Party of Macedonia

Romania

• Communist Party (Nepecerişti) / Partitul Comuniştilor (Nepecerişti)

Serbia & Montenegro

• Labour Party / Partija Rada (PR)
• League of Communists of Yugoslavia in Serbia / Savez Komunista Jugoslavije u Srbiji (SKJ u Srbiji)

Turkey/Northern Kurdistan

• Maoist Communist Party / Maoist Komünist Partisi (MKP)
• Marxist Leninist Communist Party / Marksist Leninist Komünist Parti (MLKP)