| Institute for Nuclear Research of the National Academy of Sciences of Ukraine (site web) | 1 revue |
| Institute for Oil, Gaz, Energy, Environment and Sustainable Development — OGEE (site web) | 1 revue |
| Institute for Operations Research and the Management Sciences — INFORMS (site web) | 2 revues |
| Institute for Palestine Studies (site web) | 1 revue |
| Institute for Problems in Mechanical Engineering — IPME (site web) | 1 revue |
| Institute for Regional Security (site web) | 1 revue |
| Institute for Research and Community Services Universitas Muhammadiyah Palangkaraya | 1 revue |
| Institute for Research in Classical Philosophy and Science — IRCPS (site web) | 1 revue |
| Institute for the History of Ancient Civilizations - JAC — IHAC - JAC (site web) | 1 revue |
| Institute for the study of ancient cultures — ISAC (site web) | 2 revues |
| Institute for the Study of Man (site web) | 1 revue |
| Institute of Advanced Engineering and Science — IAES (site web) | 3 revues |
| Institute of Archaeology, Hebrew University of Jerusalem (site web) | 1 revue |
| Institute of Buddhist Studies (site web) | 2 revues |
| Institute of China and Asia-Pacific Studies, National Sun Yat-sen University (site web) | 1 revue |
| Institute of classical studies — ICS (site web) | 1 revue |
| Institute of Education Press — IOE PRESS (site web) | 1 revue |
| Institute of Egyptology - Waseda University (site web) | 1 revue |
| Institute of English Studies - University of Warsaw (site web) | 1 revue |
| Institute of European and American Studies — IEAS (site web) | 1 revue |
| Institute of History of Ukraine of the National Academy of Sciences of Ukraine (site web) | 1 revue |
| Institute of international affairs - Seoul National University (site web) | 0 revue |
| Institute of international politics & economics — IIPE (site web) | 1 revue |
| Institute of International Relations - Taiwan — IIR (site web) | 1 revue |
| Institute of Law Jersey (site web) | 1 revue |
| Institute of Management Accountants — IMA (site web) | 1 revue |
| Institute of mathematical statistics — IMS (site web) | 1 revue |
| The Institute of Mind and Behavior (site web) | 1 revue |
| Institute of Nautical Archaeology — INA (site web) | 1 revue |
| Institute of Oriental Philosophy — IOP (site web) | 2 revues |
| Institute of Parasitology of the Slovak Academy of Sciences — IP SAS (site web) | 1 revue |
| Institute of policy studies (site web) | 1 revue |
| Institute of public administration (site web) | 1 revue |
| Institute of public administration = Maʻhad al-Idārah al-ʻĀmmah (Riyad, Arabie saoudite) — IPA (site web) | 1 revue |
| Institute of Public Administration in New Zealand — IPANZ (site web) | 1 revue |
| Institute of Social Science — ISS (site web) | 1 revue |
| Institute of Social Sciences Belgrade — IDN (site web) | 1 revue |
| Institute of southeast asian studies — ISEAS (site web) | 2 revues |
| Institute of strategic studies Islāmābād — ISSI (site web) | 1 revue |
| Institute of Technology and Life Sciences (site web) | 1 revue |
| INSTITUTI I ARKEOLOGJISË — ASA (site web) | 1 revue |
| Institution administrative indépendante-Organisation japonaise de promotion du commerce — IDE-JETRO (site web) | 1 revue |
| The Institution of Electrical Engineers — IET | 1 revue |
| Institutional Repository de la Universidad de Los Andes — Saber ULA | 10 revues |
| Instituto Brasileiro de Direito Processual Penal — IBRASPP (site web) | 1 revue |
| Instituto Brasileiro de Informação em Ciência e Tecnologia — IBICT | 1 revue |
| Instituto Brasileiro de Relações Internacionais — IBRI (site web) | 0 revue |
| Instituto Centroamericano de Administración Pública — ICAP (site web) | 1 revue |
| Instituto de Administración Pública del Estado de México (site web) | 1 revue |
| Instituto de ciencia política (site web) | 1 revue |
