International Union of Architects (IUA)

 International Planned Parenthood Federation (IPPF)

 International Institute for Environmental Affairs

 International Council of Environmental Law

 International Red Cross (IRC)

 International Nuclear Data Committee (INDC)

 International Peace Academy (IPA)

 International Conference on the Peaceful Use of Atomic Energy

 International Chamber of Shipping

 Permanent International Association of Navigation Congresses (PIANC)

 International Air Transport Association (IATA)

 Aeronautic International Federation (FAI)

 International Council of Aeronautical Sciences (ICAS)

 International Association of Lighthouse Authorities (IALA)

 International Shipping Federation

 International Maritime Satellite Organization (INMARSAT)

 International Sea-Bed Authority

 International Hydrographic Organization (IHO)

 International Association of Broadcasting (IAB)

 International Organization of Employers (IOE)