Terres des Hommes functions through an International Secretariat (IS) based in Geneva, Switzerland, and in January 2002 it opened a European Union Liaison Office in Brussels. The IS ensures coordination among the Terre des Hommes organisations, and representation at international and European level.
The General Assembly (GA), including all the member organisations, is the highest decision-making body. It meets once a year, defines the global vision and elects the International Board, which is responsible for implementing GA strategies and supervising the work of the International Secretariat offices in Geneva and Brussels.