Centrum Techniki Okrętowej S.A. is a member of the following organisations:

• ITTC - International Towing Tank Conference [www]- membership since 1973
• IMO - International Mariritime Organisation [www] -  membership since 2004
• COREDES - Committee for Research and Development in European Shipbuilding [www] - membership since 1997
• EMEC - European Marine Equipment Council [www] and co-operation with Research and Development Commitee EMECRID - membership since 2003
• ECMAR - European Council for Maritime Applied R&D [www]
• ISSC - International Ship & Offshore Structures Congress [www] - membership since 2003
• EFC - European Federation of Corrosion [www] - membership since 1996

• NAFEMS - The International Association for the Engineering Analysis Community [www]

Employees of CTO S.A. also co-operate with:

• WATERBORNE - European Technology Platform of Water Transport [www]
• ISO - International Organisation for Standardisation [www] - by the agency of Polish Committee for Standardization (PKN) and Technical Committee No. 18 for Ships and Marine Technology 
• EPI - European Patent Office [www]