The TCCI participates in:

• EUROCHAMBERS
• Union of Hellenic Chambers
• The Centre for International and European Financial Law
• The Council for the Regulatory Plan and Environmental Protection of Thessaloniki
• The International Chamber of Commerce
• The Regional Council of Central Macedonia
• The Administrative Council of the Society for the Development of Privately Owned Infrastractures of Northern Greece
• The Committee of the Centre for the Study and Growth of the Hellenic Culture in the Black Sea region
• The Informal Co-ordinating Council for the Economic and Cultural Development of Thessaloniki
• The Association of the Mediterranean Chambers of Commerce and Industry (ASCAME)
• The Central Union of Chambers of Greece
• The Greek Chamber of Transportation Associations
• The Chamber Group for Development of the Greek Islands
• The Interbalkan Co-operation Committee of the Ministry of Macedonia - Thrace
• The Permanent Committee for Facilitating Foreign Trade HELLASPRO, in the framework of the SECI (SOUTHEAST EUROPEAN COOPERATIVE INITIATIVE) project
• The Committee for Expansion of the European Union of the Ministry of Foreign Affairs
• The Central Macedonia Committee for Regional Enterprice Programme Monitoring
• It participates, through the Greek Chambers Office in Brussels, in authorised Councils and Committees of the European Union
• Hellenic Network for Corporate Social Responsibility
• CERTH Support Council
• Impartiality Committee for the certification in the framework of IPIDE-SEVE