| HONG KONG POLCA PIANOS CO., LIMITED | Private company limited by shares | Live |
| Germany Haishu Pianos Limited | Private company limited by shares | Live |
| Germany Kasate Pianos Limited | Private company limited by shares | Live |
| Germany Grotrrian-Steinweg Pianos Manufacturing Co., Limited | Private company limited by shares | Live |
| Hong Kong (Germany) Neugebauer Pianos Limited | Private company limited by shares | Live |
| YIDAN PIANOS INTERNATIONAL ART EDUCATION GROUP LIMITED | Private company limited by shares | Live |
| Germany Kanuoyi Pianos Limited | Private company limited by shares | Live |
| WEBER PIANOS LIMITED | Private company limited by shares | Dissolved |