• Quid pro quo
  
• Eruopean Sea Ports Organisation
  
• Antwerp Port Authority
  
• Ministry of Flanders / Foreign Affairs administration
  
• PSA HNN
  
• De Lloyd
  
• Marsh
  
• KPMG
  
• Shipping & Signalling Services (S. & S.S.)
  
• MSC Belgium
  
• Alfaport Antwerpen
  
• Waterways and Marine Affairs Administration (AWZ) / Department of Infrastructure and Environment (LIN) / Ministry of Flanders
  

ITMMA fosters good relations with organisations and institutions such as the Flanders Institute for Logistics, the Federation of European Private Port Operators (FEPORT), the International Association of Ports and Harbors (IAPH), UNCTAD, the World Bank, the International Association of Maritime Economists (IAME), the International Association of Cities and Ports (AIVP), etc.