| Company | Location |
|---|---|
| KLA-Tencor Corp. | San Jose, California, United States |
| Kleindiek Nanotechnik | Reutlingen, Germany |
| Kleinfeld Technical Services Inc. | Bronx, New York, United States |
| Klinger Constructors Inc. | Albuquerque, New Mexico, United States |
| KLM Capital Management | San Jose, California, United States |
| Klocke Nanotechnik | Aachen, Germany |
| Knowles Acoustics | Itasca, Illinois, United States |
| Koch Genesis | Dallas, Texas, United States |
| Konarka Technologies Inc. | Lowell, Massachusetts, United States |
| Koninklijke Philips Electronics NV | Amsterdam, Netherlands |
