?- Harman International (Samsung)
- D&B Audiotechnik
- Music Group (Music Tribe)
- Loud Audio
- L-Acoustics
- AEB Industriale (DB Technologies)
- Bowers & Wilkins
- Bose Corporation
- B&C Speakers
- Carlson Audio Systems
- K-Array
- Meyer Sound Laboratories
- Renkus-Heinz
- Nady Systems
- Yamaha Corporation
- Sony Corporation