| Company | Location |
|---|---|
| Japan Technology Group | Philadelphia, Pennsylvania, United States |
| JC Nabity Lithography Systems | Bozeman, Montana, United States |
| JENOPTIK Mikrotechnik GmbH | Jena, Germany |
| JEOL USA, Inc. | Peabody, Massachusetts, United States |
| Jerusalem Venture Partners | Jerusalem, Israel |
| Jet Process Corp. | North Haven, Connecticut, United States |
| JetMark Technical Ltd. | Columbia, Maryland, United States |
| JMAR Technologies Inc. | Carlsbad, California, United States |
| Joanneum Research Forschungsgesellschaft mbH | Weiz, Austria |
| Johns Hopkins University - Applied Physics Laboratory | Laurel, Maryland, United States |
