| Able Audio: Manufacturer of speaker rings, subwoofer enclosures, and templates. USA. |
| Black Art Audio: Designers and manufacturers of hand wound transformers for audio. |
| Ciare: Manufacturer of drivers for home, cars, professional and electronics parts. Italy. |
| Dahlquist Parts & Service: Parts, service, & upgrades from "the Original Dahlquist" staff of New York. |
| Danish Audio ConnecT: Danish manufacturer of high end audio parts for hi-fi, and home theater. Products include stepped attenuators, balance controls, input switches, phono stages, RIAA preamplifier modules. |
| Danish Sound Technology: Manufacturer of Vifa, Peerless, Logic and Scan-Peek speaker components and sound panels. |
| E J Jordan Designs: Manufacturers of drivers custom designed for hi-fi system manufacturers but also for sound reinforcement, broadcasting, defense, medical and telecommunication applications. |
| Hakken: Speaker parts from Taiwan. |
| Herbie's Audio Lab: Microphonics-absorbing audio accessories, including the 'HAL-O', vacuum tube damping instrument and "square footing" component feet. |
| High Frame Industrial Co.: Manufacturer of loudspeaker components, including cones of various size and materials, grilles, caskets, and terminal cups. |
| Honsound Electronics: Manufacturer and exporter of woofer, boom box, tweeter, car speaker, multimedia speaker and other car accessories. |
| Ningbo SeaGull Audio Co.: Specialize in parts for loudspeaker, subwoofer for professional audio. Also provides loudspeaker for car and professional. |
| NuWay Speaker: Makes speakers components such as spiders, dust caps and speaker cones. |
| NXT Sound: British thin-screen speaker technology caused quite a stir when announced, lots of OEMs using it. |
| PHY-HP: Manufacturer of driver unit, cables and interconnect. |
| Plitron: Designs and manufactures standard and custom toroidal transformers. |
| Raleigh Audio: Manufacturers of vacuum tube kits for the DIY hobbyist to build a preamplifier or digital-to-analog converter with a line stage, DAC and power supply. USA. |
| Sonic Design: Provides accessories and software for loudspeakers and loudspeaker design. Sweden. |
| Tone Doctor: Manufacturer of CabMojo and ComboMojo brands speaker switching products. USA. |
| Toroid International: Design and manufacturing of toroidal transformers and chokes. |
| V-Cap Audiophile Capacitors: Reference grade Teflon film and tin foil audio capacitors. |
| WeberVST: Amplifiers and speakers parts, audio components. Provides guide, information, reviews and industry news. |
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