| Katholieke University Leuven - Micro- and Precision Engineering | Leuven, Belgium |
| Katten Muchin Zavis Rosenman | Palo Alto, California, United States |
| Kauffman Innovation Network, Inc. | Kansas City, Missouri, United States |
| Kaunas University of Technology - Lithuanian Nanoscience and Nanotechnology Network | Kaunas, Lithuania |
| KAUST | Washington, District Of Columbia, United States |
| Kavlico Corp. | Moorpark, California, United States |
| KBI Commercial Ltd. | Dorking, Surrey, United Kingdom |
| Keithley Instruments Inc. | Cleveland, Ohio, United States |
| Kelvin Nanotechnology Ltd | Glasgow, Scotland, United Kingdom |
| Kemet International Ltd | Maidstone, Kent, United Kingdom |