| Accusound Pro Audio: Manufacturer and retailer of microphone, instrument and patch cables. Online order. USA. |
| AudioTech: Easily installed, home intercom and stereo sound systems. Suitable for new construction or older homes. |
| Brick Wall.: Manufacturer of surge protectors, includes explanation of technology's workings and advantages. |
| Bybee Technologies: Power and audio signal filtration from California; claims use of quantum/superconducting technology; partially designed by John Curl. |
| Crystal-acoustics: High-end audio accessories, silver interconnects, eichmann bullets and Naim DINs. |
| Digisette: Manufacturer of digital cassette which allows to download and listen to digital audiobooks, and MP3 music. USA. |
| Echo Busters: Acoustical room treatment panels, with an eye towards aesthetics. |
| Eighth Nerve: Manufacturers of cones, acoustic panels and power cords. Based in Nashville, Tennessee. |
| Eighth Nerve Acoustics: Manufacturer of acoustic panels. Australia. |
| Electra Glide: Manufacturer of power cords, interconnects, speaker cables and connectors made with foil and ribbon conductors. USA. |
| Everway: Specialized in producing digital voice recorder spy pens. China. |
| FT Audio: Manufacturers of passive control unit and remote control. |
| GrayWolf CD JukeBox: Remote control software program that allows control over a multidisc CD player with infrared. |
| Hanics: Manufacturer for multimedia accessories including micro speaker and receiver, microphones, and hands free earphones. |
| Ichikawa Jewel: Manufacturer of XLR and RCA connector, tonearm, cables and accessories. Japan. |
| Innovative Audio: Makes resonance-control components and furniture and loudspeakers accessories. |
| Jitter: German manufacturers of universal jitter attenuation device. Provides also information about jitter. |
| Klippel GmbH: German company specializing in measurement and control technology for loudspeaker measurement for speaker manufacturers. |
| Macro Installation Services: UK. Designs and manufactures PA systems and induction loops for deaf people. Includes information about products, services and organizes staff training programs. |
| Marigo Audio Lab: Cable-ware and tuning dots. |
| Michael Green Audio: Sound specialist and designer of speakers’ furniture and accessories. Provides discussion forum and industry news and reviews. |
| Milty: Makes sound isolation, connectors and cleaning solutions. UK. |
| Music Works: Design and supply power leads, blocks and tables for hi-fi music systems and home cinema equipment. UK. |
| Nempee: Audio acoustic consultant, software developer and manufacturer of loudspeaker drivers. India. |
| Nitty Gritty: Makes vinyl cleaning systems and accessories. |
| O. W. Donald Co.: Manufacturer of mobile TV antenna, audio and video cables, noise filters, and repeaters |
| P.W.B. Electronics: Peter Belt makes modifications to other people's electronics and sells accessories so to enable others to do the same. |
| Prefer Professional Audio Products: Manufacturer of professional audio and video products. Imports and export. |
| Puretone: Manufacturer of hearing aids and assistive listening devices. EN46002 Medical Devices Directorate. |
| Ringmat Developments: Circular mats go both under and over LPs. |
| RPG Diffusor Systems: Features physical room treatments, and software. |
| Shakti Innovations: Makers of Stones, passive add-ons, and also cable-ware. |
| Shun Mook: Offers Mpingo disks and other room-improvement devices. |
| Taiwan Carol Electronics Co. Ltd.: Taiwan. Manufactures a range of dynamic and multimedia microphones, such as wireless, supercardiode, reciting, CB, cable, mega phone, as well as speakers and power amps. |
| TWD Acoustic Products Ltd: Produce acoustic products and wireless projects for headphones. |
| UltraStat: Devices to eliminate user induced static discharges to audio equipment. |
| UpBeat Audio: Manufacturer a portable amplifier and splitter. USA. |
| Van Den Hul: Dutch maker famous for ultra-high-end audio cartridges and cabling. |
| VansEvers: US maker of cables and resonators, power conditioners, power cords for guitar and home audio. Provides support, reviews and comments. |
| ViaBlue: Manufacturer of cables, plugs, spikes and accessories. Germany. |
| Vivid Audio: Makes and design gold, silver and cotton audio cables. |
| Voice Minder: Manufacturers of a portable walkman personal amplification system adaptable for indoor and outdoor. |
| Wattgate: Kimber Kable outlets and plugs. |
| ZCable: Loudspeaker, interconnect cables, loudspeaker cables, power cables and headphone cables. |
| Zero Impedance: Add-on devices such as toroidal autoformer that have the ability to multiply a speakers impedance by 2x, 3x, or 4x. |
| Zon Audio: Manufacturers of audio distribution devices such as multi-source, multi-zone inputs and outputs sound distributors. |
Classical
