- Jacobs University = Constructor University [Bremen]
- Jadavpur University
- Jaipuria Institute of Management [Lucknow]
- Jaipuria Institute of Management [Noida]
- Jai Res Fdn
- James Hutton Inst, Dundee DD2 5DA, Scotland
- James Madison University
- Janssen-Cilag [Issy-les-Moulineaux]
- Japan Advanced Institute of Science and Technology
- Japan Agency for Marine-Earth Science and Technology
- Japan Atomic Energy Agency
- Japan Synchrotron Radiation Research Institute [Hyogo]
- Jawaharlal Nehru Centre for Advanced Scientific Research
- Jawaharlal Nehru Technological University Hyderabad
- Jawaharlal Nehru University
- J Craig Venter Institute
- J. Craig Venter Institute
- J. Craig Venter Institute [La Jolla, USA]
- J.E. Cairnes School of Business and Economic
- Jeffrey Sachs Center on Sustainable Development (Sunway University)
- Jenderal Soedirman University [Purwokerto, Indonesia]
- Jeonbuk National University
- Jet Propulsion Laboratory
- J. Heyrovský Institute of Physical Chemistry of the ASCR
- Jianghan University
- Jiangnan University
- Jiangsu Academy of Agricultural Sciences
- Jiangsu Key Laboratory of Engineering Mechanics, School of Civil Engineering
- Jiangsu Key Laboratory of Mechanical Analysis for Infrastructure and Advanced Equipment, School of Civil Engineering
- Jiangsu Maritime Institute
- Jiangsu Provincial Engineering Laboratory of Pattern Recognition and Computational Intelligence
- JiangSu University
- JiNan University
- Jinan University [Guangzhou]
- Jindal Global University
- Jindal School of International Affairs (Jindal Global University, Sonipat, Haryana)
- Jingchu University of Technology
- Johannes Gutenberg - Universität Mainz = Johannes Gutenberg University
- John F. Kennedy Institute
- John Innes Centre [Norwich]
- John Innes Centre, Norwich Research Park, Norwich, UK
- John Innes Ctr, Norwich NR4 7UH, Norfolk, England
- Johns Hopkins University
- Joint BioEnergy Inst
- Joint Center for Earth Systems Technology [Baltimore]
- Joint Genome Institute
- Joint Genome Institute (JGI)
- Joint Institute for Nuclear Research
- Joint Japanese-French Robotics Research Laboratory [Japon]
- Joint MSc in VIsion and RoBOTics [VIBOT]
- Jonsson Comprehensive Cancer Center and Institute for Precision Health
- Jülich Centre for Neutron Science
- Julius Kühn-Institut
- Julius-Maximilians-Universität Würzburg = University of Würzburg
- JUNIA
- Justus-Liebig-Universität Gießen = Justus Liebig University