| K-tek Nanotechnology | Wilsonville, Oregon, United States |
| K2 Optronics Inc. | Sunnyvale, California, United States |
| Kanematsu USA Inc. | Arlington Heights, Illinois, United States |
| KARL STORZ GmbH & Co. KG | Tuttlingen, Germany |
| Karoub Assoc. | Lansing, Michigan, United States |
| 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 |