- KRDB Research Centre
- KTH Solid Mechanics
- KU Leuven Plant Institute
- KXEN
- Kamerlingh Onnes Laboratorium
- Katholieke Universiteit Leuven, Mechanical Engineering Department - P.M.A.
- Kawai Laboratory
- Kerlabs
- Key Lab. Biopesticide & Chem. Biol., Minist. Educ.
- Key Laboratory fo Analytical Chemistry for Biology and Medicine
- Key Laboratory of Intelligent Perception and Image Understanding
- Key Laboratory of Modern Acoustics
- Key Laboratory of Optical and Magnetic Resonance Spectroscopy
- Key Laboratory of Specialty Fiber Optics and Optical Access Networks
- Key Laboratory of the Ministry of Education on Nanomaterials
- Klinika Hematologii
- Klinikum Ansbach, Institute of Pathology