AKG Acoustics - microphone/headphones
AMX - video switching and control devices
Bang & Olufsen Automotive
Becker - car infotainment
BSS Audio - signal processing
Crown International - pro amplifiers
dbx Professional Products - signal processors
DigiTech - guitar products
HardWire - guitar pedals
HiQnet - audio digital network, based on Ethernet
harman/kardon - home/car audio
Infinity - home/car speakers
JBL - home/car speakers & amplifiers, professional speakers
Lexicon - digital processing
Mark Levinson Audio Systems - home/car audio
Martin Professional - stage and architectural lighting and effects fixtures
Revel - home speakers
Selenium - home, car and professional speakers, amplifiers, sound tables/mixers
S1nn GmbH & Co.
Soundcraft - mixing consoles
Studer - mixing consoles