| # | Name | Location | Applications |
|---|---|---|---|
| 1. | RM Materials Refratarios Ltda. | 🇺🇸 , United States | 1 |
| 2. | RÄMÄ Mikko | 🇫🇮 Jarvenpaa, Finland | 3 |
| 3. | RÖMMELER Volker | 🇩🇪 Lauingen am Elm, Germany | 4 |
| 4. | RÜMMELE Matthias | 🇩🇪 Karlsruhe, Germany | 1 |
| 5. | RÜMMELE-WERNER Stefan | 🇩🇪 Lorrach, Germany | 1 |
| 6. | RÜMMELEIN Martin | 🇩🇪 Nürnberg, Germany | 1 |
| 7. | RÜMMLER Maik | 🇩🇪 Breitengüssbach, Germany | 2 |
| 8. | RÜMMLER MAIK | 🇩🇪 BAUNACH, Germany | 1 |