- Athens Bar Association
- International Bar Association IBA (Section on Business Law, Dispute Resolution Section, Litigation)
- German-Hellenic Chamber of Industry and Commerce
- German Bar Association DAV
- German Transport Law Association DGTR
- Swiss Permanent Organisation of Arbitration SGO
- International Association for Insurance Law AIDA
- Institute for Maritime Law and the Law of Maritime Trade, Hamburg Germany
- Deutsche Gesellschaft für Vertriebsrecht e.V.
- German Association for the Protection of Intellectual Property GRUR
- Austrian Bar Association ÖRAV
