| ART Pro Audio | Audio Centron | Biamp Systems | Blackstar Amplification |
| Boss | Casio Musical Instruments | Cerwin Vega | Crate |
| Crest Audio | DBX | Dean Markley | DigiTech |
| DOD | Eden Electronics | Fender | Focusrite |
| Fostex | Galien Krueger | Genz Benz | Hard Wired |
| Hartke | Hughes Kettner | Johnson Amps | Kaman Music |
| Kawai | Korg | KRK | Kurzweil |
| Kustom | KV2 Audio | Laney | Line6 |
| Mackie Pro Audio | Marshall | Novation Music | Peavey |
| Privia Piano | QSC | Randall | Rane |
| Rivera | Rocktron | Roland | Samick |
| Samson | Soundcraft | SoundTech | Spirit by Soundcraft |
| Stanton DJ | Studiomaster | Sunn | SWR |
| Tapco | Tascam | Teac | Trace Elliot |
| Traynor Amps | Vestax | VHT | VOCOPRO |
| Vox | VTC Pro Audio | Warfedale Pro | Yamaha |
| Yorkville | Young Chang | Zoom | |
