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
WStrymon (company)
WT-Rex Engineering
WUniversal Audio (company)
WWaves Audio
WYamaha Corporation