International Federation of Red Cross and Red Crescent Societies
- Chemin des Crêts 17, 1209 Geneva, Switzerland
International Relations
International Olympic Committee
- Maison Olympique, 1007 Lausanne, Switzerland
International Organization for Standardization
- Chemin de Blandonnet 8, 1214 Vernier, Switzerland
International Peace Bureau
- 41 Rue de Zurich, 1201 Geneva, Switzerland
International Seabed Authority
- 14-20 Port Royal Street, Kingston, Jamaica
Inter-Parliamentary Union
- Chemin du Pommier 5, 1218 Le Grand-Saconnex, Switzerland