| Alexander Herrmann | Atlas |
| August Förster | Blondel |
| C. Bechstein | Casio |
| Daesung | Danemann |
| Dietmann | Dietmann |
| Dynatone | Érard |
| Ernst Krause | Euterpe |
| Feurich | Fridolin Schimmel |
| Gaveau | Geyer |
| Grotrian-Steinweg | Hyundai |
| Ibach | Julius Drayer |
| Kawai | Kieffer |
| Klein | Korg |
| Obermann & Sohn | Pearl River |
| Petrof | Pleyel |
| Rameau | Roland |
| Rönisch | Rösler |
| Samick | Sangler |
| Schimmel | Schmidt Flohr |
| Scholze | Seiler |
| Sojin | Sommerfeld |
| Steinway & Sons | Suter |
| Thomann | W. Hoffmann |
| Weinbach | Wilh. Steinberg |
| Wilhelm Schimmel | Wohlfahrt |
| Yamaha | Young Chang |
| Zimmermann |