Allen & Heath is a company based in Penryn, Cornwall, England, specialising in the manufacture of audio mixing consoles. Allen & Heath also makes sound management systems for industrial installations and DJ mixers for nightclubs.

Belgium based AUDIOFOCUS  manufactures professional loudspeakers and system solutions designed for live sound applications and fixed.

Meyer Sound Laboratories is an American company based in Berkeley, California that manufactures self-powered loudspeakers, multichannel audio show control systems, electroacoustic architecture, and audio analysis tools for the professional sound reinforcement, fixed installation, and sound recording industries.

Quest Engineering has been at the forefront of professional audio over the past two decades consistently innovating with this broad range of practical solutions designed for real world applications.

Leading manufacturer of microphones for live, touring and studio applications. Professional audio manufacturer of in-ear monitoring systems, sound isolating headphones etc.