Associations

• American Universities Alumni Association of Northern Greece
• Association of Balkan Statisticians
• Association of Mechanical and Electrical Engineers of North Greece (SMHBE)
• Association for Social & Economic Research (EKOME)
• Hellenic Association of Mechanical & Electrical Engineers (HAMEE)
• Hellenic Association of Travel & Tourist Agents (HATTA)
• Hellenic Pilots Association (Civil Aviation)
• Panhellenic Association of Management & Production Engineers
• Panhellenic Association of TEI Tourist School Graduates
• Panhellenic Electronic Engineers Union of Hellenic Civil Aviation Authority
• Technical Chamber of Greece (TEE)
• Technology Teachers Association (ETE)
• Union of Public Relations Companies in Greece
• see also Greece: Health & Medicine, under Societies
• see also Greece: Science, under Societies

Clubs

• Explorer Post 2 of Patras
• Junior Chamber Greece
• Hellas Chess Club
• Hellenic Helicopter Club
• Hellenic Mensa
• Rotary Club of Thessaloniki
• Scouts of Greece (SEP)

Organizations

• Grand Lodge of Greece (Freemasons)
• Greek Helsinki Monitor & Minority Rights Group
• World Bridge Federation