Consortium for International Earth Science Information Network (CIESIN)

 Federation Internationale du Sport Universitaire (FISU)

 International Commission on Large Dam (ICOLD)

 International Union of Pure and Applied Biophysics (IUPAB)

 International Union of Pure and Applied Chemistry (IUPAC)

 International Association of Classification Societies (IACS)

 International Shipping Federation (ISP)

 International Center for Materials Physics (ICMP)

 International Standard Association (ISA)

 International Standardization Organization (ISO)

International PEN (International Association of Poets, Playwrights, Editors, Essayists and Novelists)

 International Union for Conservation of Nature and Natural Resources (IUCN)

 United International Bureau for the Protection of Intellectual Property (BIRPI)

 International Association for the Protection of Industrial Property (IAPIP)

International Union for the Protection of Industrial Property (Paris Union)

 International Copyright Society

 International Olympic Committee (IOC)

 Inter-Parliamentary Union (IPU)

 Rotary International

 African Postal Union (APU)