| Company | Location |
|---|---|
| Research Frontiers Inc. | Woodbury, New York, United States |
| Research in Germany - Land of Ideas | Düsseldorf, Germany |
| Research Partnership to Secure Energy for America | Sugar Land, Texas, United States |
| Research Support Instruments Inc. | Lanham, Maryland, United States |
| Resodyn Acoutic Mixers Inc. | Butte, Montana, United States |
| Resodyn Corp. | Butte, Montana, United States |
| Resonetics Inc. | Nashua, New Hampshire, United States |
| Retsch, Inc. | Newtown, Pennsylvania, United States |
| Revertex (Malaysia) Sdn Bhd | Kluang, Johor, Malaysia |
| Reynard Corp. | San Clemente, California, United States |
