- Karolinska Institute
- Karolinska Institutet [Stockholm]
- Karolinska University Hospital [Stockholm]
- Katholiek Universiteit Leuven
- KC Microbiome Communications Group
- Keck School of Medicine [Los Angeles]
- Kennedy Krieger Institute [Baltimore]
- Kermanshah University of Medical Sciences
- Kessler Institute for Rehabilitation, Kessler Foundation
- King Abdulaziz University
- King Edward Memorial Hospital for Women
- King Mongkut's University of Technology Thonburi
- King‘s College London
- Klinikum der Universität Heidelberg
- Klinikum Dritter Orden [Munich]
- Klinikum rechts der Isar
- Kobe University Graduate School of Medicine
- Koç University
- Krankenhaus Mara [Bielefeld, Germany]
- Kwame Nkrumah University of Science and Technology