African Society of International Law

 African Association of International Law

 American Society of International Law

 Asian Society of International Law

 Australian and New Zealand Society of International Law

 British Institute of International and Comparative Law

 Canadian Council on International Law

 Chinese Society of International Law

 Chinese (Taiwan) Society of International Law

 Czech Society of International Law

 German Branch of the International Law Association

 German Society of International Law

 Hellenic Society of International Law and International Relations

 International Law Association 

 Indian Society of International Law

 Instituto Hispano-Luso-Americano de Derecho Internacional

 Irish Society of International Law

 Italian Society of International Law

 Japanese Society of International Law

 Latin-American Society of International Law

 Norwegian Branch of the International Law Association

 Portuguese Society of International Law

 Royal Netherlands Society of International Law 

 Société française pour le droit international 

 Société québécoise de droit international

 Société suisse de droit international 

 Spanish Association of Professors of International Law and International Relations