• Eastman Music Company
• Fender Musical Instruments Corporation (Servco Pacific Inc.)
• Casio Computer Co. Ltd.
• Steinway Inc. (Paulson & Co. Inc.)
• Kawai Musical Instruments Manufacturing Co. Ltd.
• Yamaha Corporation
• Guangzhou Pearl River Piano Group Co. Ltd.
• Yanagisawa Wind Instruments Co. Ltd.
• C. F. Martin & Co. Inc.
• Roland Corporation