- Kansas State University
- Karlsruhe Institute of Technology = Karlsruher Institut für Technologie
- Karlsruhe Inst Technol, Inst Photon Sci & Synchrotron Radiat IPS, D-76021 Karlsruhe, Germany
- Kazan Federal University
- Kazan Scientific Centre of the Russian Academy of Sciences
- Kirstenbosch Research Centre
- Komarov Botanical Institute