Institution
- Institut de Chimie des Substances Naturelles1
- Institut de Pharmacie Industrielle1
- Institut de Topologie et Dynamique des Systèmes1
- Institut de biologie physico-chimique1
- Institut de l’Information Scientifique et Technique1
- Institut de recherche de l'Hydro-Québec1
- Institute for Defense Analyses1
- Institute for Genetics and Cellular and Molecular Biology1
- Institute for the Advancement of Medical Communication1
- Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences1
- Institute of Cytology of the Academy of Sciences of the USSR1
- Institute of Physics (Great Britain)1
- Institution of Electrical Engineers, INSPEC1
- Instrumentation Specialties Company [Isco, Inc.]1
- Inštitut "Jožef Stefan"1
- Integrated Genetics1
- Intel Capital1
- International CODATA Committee on Electrochemistry, Thermodynamics, and Kinetics 1
- International Centre of Insect Physiology and Ecology1
- International Federation for Information and Documentation1