1. Rabewerk GmbH, Germany. **
2. RAP Mikrosysteme GmbH, Germany.
3. Rasspe International, Germany. **
4. Matthias Rau GmbH, Germany.
5. Rau GmbH, Germany
6. Rauch GmbH, Germany. **
7. Reermann, Germany. **
8. Reinartz GmbH, Germany
9. Revolt Stalltechnik, Germany.
10. Riela, Germany. **
11. A. Ritter &
Sohne GmbH, Germany. **
12. Rochling Getriebe KG, Germany. **