WAKG (company)
WAudio & Design (Recording) Ltd
WBehringer
WCentral Music Company
WDeath By Audio
WDunlop Manufacturing
WEventide, Inc
WForsythe Audio
WGjika Amplification
WLawo
WLexicon (company)
WMackie
WManley Laboratories
WMaxon Effects
WMXR
WRøde Microphones
WT-Rex Engineering
WUniversal Audio (company)
WWaves Audio
WYamaha Corporation