- Kaduceo
- Kaiko [Paris]
- KardioMe
- Karlsruhe Institute of Technology
- Karolina Institutet
- Karolinska Institutet [Stockholm]
- Karolinska University Hospital [Stockholm]
- Kayrros
- K-City Labs - Kinaxia Group
- KEEN EYE
- Key Laboratory of Computer Network and Information Integration [Nanjing China]
- Key Laboratory of Intelligent Information Processing, Institute of Computing Technology [Beijing]
- Khalifa University
- Khatam University
- Kidney Node [Sydney, Australia]
- King Abdulaziz University
- King Abdullah University of Science and Technology [Saudi Arabia]
- King Fahd University of Petroleum and Minerals
- King's College Hospital
- Kings College Hospital
- King‘s College London
- Kitware SAS
- Knowledge representation, reasonning
- Konvergen AI
- Korea Polar Research Institute
- Korea University [Seoul]
- Krasnoyarsk State Medical University
- KTH Royal Institute of Technology [Stockholm]
- Kymeta Corporation, Redmond, WA, USA
- Kyoto Sangyo University
- Kyoto University
- Kyushu Institute of Technology
- Kyushu University