- Kaiserslautern University of Technology
- Kalray
- Kansas State University
- Kantonsspital Baselland [Bruderholz]
- Karl-Franzens-Universität Graz
- Karlsruhe Institute of Technology = Karlsruher Institut für Technologie
- Karolinska Institutet [Stockholm]
- Karolinska University Hospital [Stockholm]
- Kasuza DNA Research Institute
- Katholishe Universität Eichstätt
- Keck School of Medicine [Los Angeles]
- Keio University [Tokyo]
- Kent State University
- KEOLIS
- Keolis [Rennes]
- KEREVAL
- kerlabs
- Kerlabs
- Kessler Foundation [East Hanover]
- KeyGene [Wageningen]
- Key Lab of Computer System and Architecture, Institute of Computing Technology [Beijing]
- Key Laboratory for Earth Surface Processes of the Ministry of Education
- Key Laboratory of Applied Statistics under Ministry of Education
- Key Laboratory of Intelligent Information Processing, Institute of Computing Technology [Beijing]
- Key Laboratory of Machine Perception (MOE)
- Key Laboratory of Orogenic Belts and Crustal Evolution
- Khalifa University for Science Technology [Abou Dabi]
- Khoury College of Computer Sciences [Boston]
- ki:elements [Saarbrücken]
- King Abdulaziz University
- King Abdullah University of Science and Technology [Saudi Arabia]
- King Khalid University [Abha]
- King Saud University [Riyadh]
- King's College Hospital
- King‘s College London
- Kitware SAS
- KLA TENCOR
- Klinik Hennigsdorf
- Klinikum Augsburg
- KLS-Optim [Villebon-sur-Yvette]
- Knight Foundation - School of Computing and Information Sciences [Miami]
- Knowledge Representation
- Knowledge representation, reasonning
- Kobe University
- Koç University
- Konica Minolta Company [Londres]
- Konica Minolta Inc. [Osaka]
- Konputazio Zientziak eta A.A. Saila [Spain]
- Konrad-Zuse-Zentrum für Informationstechnik Berlin
- KONTRON [Ismaning]
- KONTRON [Toulon]
- Kooaba
- Kooaba research team
- Koordinierungsstelle für IT-Standards [Bremen]
- Korea Advanced Institute of Science and Technology
- Korilog [Muzillac]
- Krembil Research Institute
- KTH Royal Institute of Technology [Stockholm]
- Kumoh National Institute of Technology [Gyeongsangbuk-do]
- Kyoto University
- Kyushu University
- Kyutai